./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--usb--host--isp116x-hcd.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs --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 9d4cee005db193e9c1facb47684505767d12f23c1b879219be0e7ba3c7b775ac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:34:47,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:34:47,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:34:47,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:34:47,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:34:47,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:34:47,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:34:47,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:34:47,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:34:47,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:34:47,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:34:47,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:34:47,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:34:47,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:34:47,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:34:47,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:34:47,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:34:47,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:34:47,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:34:47,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:34:47,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:34:47,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:34:47,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:34:47,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:34:47,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:34:47,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:34:47,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:34:47,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:34:47,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:34:47,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:34:47,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:34:47,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:34:47,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:34:47,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:34:47,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:34:47,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:34:47,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:34:47,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:34:47,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:34:47,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:34:47,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:34:47,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:34:47,249 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:34:47,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:34:47,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:34:47,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:34:47,252 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:34:47,252 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:34:47,252 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:34:47,252 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:34:47,253 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:34:47,253 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:34:47,260 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:34:47,260 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:34:47,261 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:34:47,261 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:34:47,261 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:34:47,262 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:34:47,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:34:47,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:34:47,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:34:47,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:34:47,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:34:47,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:34:47,264 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:34:47,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:34:47,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:34:47,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:34:47,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:34:47,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:34:47,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:34:47,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:34:47,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:34:47,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:34:47,268 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:34:47,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:34:47,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:34:47,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:34:47,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:34:47,269 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d4cee005db193e9c1facb47684505767d12f23c1b879219be0e7ba3c7b775ac [2021-11-19 13:34:47,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:34:47,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:34:47,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:34:47,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:34:47,630 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:34:47,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i [2021-11-19 13:34:47,720 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/data/424d3516a/0ea4b97b9a434ea7a6fcaed5108e9c95/FLAG68bf2bdc2 [2021-11-19 13:34:48,550 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:34:48,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i [2021-11-19 13:34:48,615 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/data/424d3516a/0ea4b97b9a434ea7a6fcaed5108e9c95/FLAG68bf2bdc2 [2021-11-19 13:34:49,023 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/data/424d3516a/0ea4b97b9a434ea7a6fcaed5108e9c95 [2021-11-19 13:34:49,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:34:49,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:34:49,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:49,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:34:49,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:34:49,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:49,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355f1352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:49, skipping insertion in model container [2021-11-19 13:34:49,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:49" (1/1) ... [2021-11-19 13:34:49,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:34:49,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:34:51,075 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:34:51,098 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:34:51,121 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:34:51,122 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:34:51,125 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:34:53,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364624,364637] [2021-11-19 13:34:53,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364769,364782] [2021-11-19 13:34:53,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364915,364928] [2021-11-19 13:34:53,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365080,365093] [2021-11-19 13:34:53,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365238,365251] [2021-11-19 13:34:53,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365396,365409] [2021-11-19 13:34:53,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365554,365567] [2021-11-19 13:34:53,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365714,365727] [2021-11-19 13:34:53,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365873,365886] [2021-11-19 13:34:53,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366012,366025] [2021-11-19 13:34:53,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366154,366167] [2021-11-19 13:34:53,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366303,366316] [2021-11-19 13:34:53,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366442,366455] [2021-11-19 13:34:53,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366597,366610] [2021-11-19 13:34:53,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366757,366770] [2021-11-19 13:34:53,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366908,366921] [2021-11-19 13:34:53,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367059,367072] [2021-11-19 13:34:53,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367211,367224] [2021-11-19 13:34:53,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367360,367373] [2021-11-19 13:34:53,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367508,367521] [2021-11-19 13:34:53,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367665,367678] [2021-11-19 13:34:53,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367814,367827] [2021-11-19 13:34:53,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367970,367983] [2021-11-19 13:34:53,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368123,368136] [2021-11-19 13:34:53,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368269,368282] [2021-11-19 13:34:53,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368412,368425] [2021-11-19 13:34:53,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368564,368577] [2021-11-19 13:34:53,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368710,368723] [2021-11-19 13:34:53,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368855,368868] [2021-11-19 13:34:53,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369009,369022] [2021-11-19 13:34:53,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369160,369173] [2021-11-19 13:34:53,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369315,369328] [2021-11-19 13:34:53,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369467,369480] [2021-11-19 13:34:53,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369622,369635] [2021-11-19 13:34:53,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369786,369799] [2021-11-19 13:34:53,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369942,369955] [2021-11-19 13:34:53,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370106,370119] [2021-11-19 13:34:53,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370248,370261] [2021-11-19 13:34:53,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370406,370419] [2021-11-19 13:34:53,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370573,370586] [2021-11-19 13:34:53,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370732,370745] [2021-11-19 13:34:53,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370891,370904] [2021-11-19 13:34:53,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371040,371053] [2021-11-19 13:34:53,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371187,371200] [2021-11-19 13:34:53,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371326,371339] [2021-11-19 13:34:53,124 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371489,371502] [2021-11-19 13:34:53,124 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371655,371668] [2021-11-19 13:34:53,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371819,371832] [2021-11-19 13:34:53,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371984,371997] [2021-11-19 13:34:53,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372149,372162] [2021-11-19 13:34:53,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372315,372328] [2021-11-19 13:34:53,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372480,372493] [2021-11-19 13:34:53,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372647,372660] [2021-11-19 13:34:53,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372807,372820] [2021-11-19 13:34:53,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372969,372982] [2021-11-19 13:34:53,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373128,373141] [2021-11-19 13:34:53,129 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373274,373287] [2021-11-19 13:34:53,129 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373417,373430] [2021-11-19 13:34:53,130 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373561,373574] [2021-11-19 13:34:53,130 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373704,373717] [2021-11-19 13:34:53,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373848,373861] [2021-11-19 13:34:53,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373989,374002] [2021-11-19 13:34:53,132 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374127,374140] [2021-11-19 13:34:53,132 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374285,374298] [2021-11-19 13:34:53,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374444,374457] [2021-11-19 13:34:53,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374600,374613] [2021-11-19 13:34:53,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374749,374762] [2021-11-19 13:34:53,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374901,374914] [2021-11-19 13:34:53,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375052,375065] [2021-11-19 13:34:53,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375201,375214] [2021-11-19 13:34:53,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375353,375366] [2021-11-19 13:34:53,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375501,375514] [2021-11-19 13:34:53,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375654,375667] [2021-11-19 13:34:53,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375805,375818] [2021-11-19 13:34:53,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375955,375968] [2021-11-19 13:34:53,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376102,376115] [2021-11-19 13:34:53,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376253,376266] [2021-11-19 13:34:53,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376404,376417] [2021-11-19 13:34:53,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376552,376565] [2021-11-19 13:34:53,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376718,376731] [2021-11-19 13:34:53,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376887,376900] [2021-11-19 13:34:53,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377054,377067] [2021-11-19 13:34:53,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377222,377235] [2021-11-19 13:34:53,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377372,377385] [2021-11-19 13:34:53,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377519,377532] [2021-11-19 13:34:53,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377680,377693] [2021-11-19 13:34:53,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377850,377863] [2021-11-19 13:34:53,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[378012,378025] [2021-11-19 13:34:53,153 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:34:53,174 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:34:53,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6adf0454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53, skipping insertion in model container [2021-11-19 13:34:53,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:53,175 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:34:53,177 INFO L158 Benchmark]: Toolchain (without parser) took 4148.16ms. Allocated memory was 90.2MB in the beginning and 159.4MB in the end (delta: 69.2MB). Free memory was 40.8MB in the beginning and 97.0MB in the end (delta: -56.1MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2021-11-19 13:34:53,178 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory was 59.6MB in the beginning and 59.5MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:34:53,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4132.63ms. Allocated memory was 90.2MB in the beginning and 159.4MB in the end (delta: 69.2MB). Free memory was 40.8MB in the beginning and 97.0MB in the end (delta: -56.1MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2021-11-19 13:34:53,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory was 59.6MB in the beginning and 59.5MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4132.63ms. Allocated memory was 90.2MB in the beginning and 159.4MB in the end (delta: 69.2MB). Free memory was 40.8MB in the beginning and 97.0MB in the end (delta: -56.1MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5442]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs --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 9d4cee005db193e9c1facb47684505767d12f23c1b879219be0e7ba3c7b775ac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:34:55,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:34:55,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:34:55,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:34:55,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:34:55,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:34:55,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:34:55,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:34:55,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:34:55,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:34:55,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:34:55,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:34:55,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:34:55,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:34:55,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:34:55,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:34:55,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:34:55,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:34:55,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:34:55,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:34:55,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:34:55,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:34:55,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:34:55,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:34:55,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:34:55,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:34:55,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:34:55,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:34:55,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:34:55,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:34:55,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:34:55,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:34:55,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:34:55,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:34:55,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:34:55,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:34:55,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:34:55,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:34:55,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:34:55,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:34:55,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:34:55,623 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:34:55,681 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:34:55,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:34:55,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:34:55,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:34:55,683 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:34:55,683 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:34:55,683 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:34:55,683 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:34:55,683 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:34:55,684 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:34:55,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:34:55,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:34:55,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:34:55,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:34:55,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:34:55,687 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:34:55,687 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:34:55,687 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:34:55,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:34:55,688 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:34:55,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:34:55,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:34:55,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:34:55,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:34:55,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:34:55,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:34:55,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:34:55,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:34:55,689 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:34:55,690 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:34:55,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:34:55,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:34:55,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:34:55,690 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d4cee005db193e9c1facb47684505767d12f23c1b879219be0e7ba3c7b775ac [2021-11-19 13:34:56,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:34:56,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:34:56,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:34:56,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:34:56,097 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:34:56,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i [2021-11-19 13:34:56,165 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/data/642398aac/39bc810829be49008d118a4ed78eddec/FLAG2690662be [2021-11-19 13:34:57,172 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:34:57,173 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i [2021-11-19 13:34:57,240 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/data/642398aac/39bc810829be49008d118a4ed78eddec/FLAG2690662be [2021-11-19 13:34:57,553 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/data/642398aac/39bc810829be49008d118a4ed78eddec [2021-11-19 13:34:57,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:34:57,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:34:57,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:57,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:34:57,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:34:57,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:57" (1/1) ... [2021-11-19 13:34:57,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f323cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:57, skipping insertion in model container [2021-11-19 13:34:57,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:57" (1/1) ... [2021-11-19 13:34:57,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:34:57,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:35:01,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364624,364637] [2021-11-19 13:35:01,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364769,364782] [2021-11-19 13:35:01,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364915,364928] [2021-11-19 13:35:01,565 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365080,365093] [2021-11-19 13:35:01,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365238,365251] [2021-11-19 13:35:01,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365396,365409] [2021-11-19 13:35:01,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365554,365567] [2021-11-19 13:35:01,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365714,365727] [2021-11-19 13:35:01,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365873,365886] [2021-11-19 13:35:01,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366012,366025] [2021-11-19 13:35:01,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366154,366167] [2021-11-19 13:35:01,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366303,366316] [2021-11-19 13:35:01,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366442,366455] [2021-11-19 13:35:01,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366597,366610] [2021-11-19 13:35:01,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366757,366770] [2021-11-19 13:35:01,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366908,366921] [2021-11-19 13:35:01,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367059,367072] [2021-11-19 13:35:01,574 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367211,367224] [2021-11-19 13:35:01,575 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367360,367373] [2021-11-19 13:35:01,575 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367508,367521] [2021-11-19 13:35:01,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367665,367678] [2021-11-19 13:35:01,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367814,367827] [2021-11-19 13:35:01,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367970,367983] [2021-11-19 13:35:01,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368123,368136] [2021-11-19 13:35:01,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368269,368282] [2021-11-19 13:35:01,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368412,368425] [2021-11-19 13:35:01,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368564,368577] [2021-11-19 13:35:01,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368710,368723] [2021-11-19 13:35:01,583 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368855,368868] [2021-11-19 13:35:01,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369009,369022] [2021-11-19 13:35:01,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369160,369173] [2021-11-19 13:35:01,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369315,369328] [2021-11-19 13:35:01,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369467,369480] [2021-11-19 13:35:01,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369622,369635] [2021-11-19 13:35:01,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369786,369799] [2021-11-19 13:35:01,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369942,369955] [2021-11-19 13:35:01,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370106,370119] [2021-11-19 13:35:01,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370248,370261] [2021-11-19 13:35:01,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370406,370419] [2021-11-19 13:35:01,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370573,370586] [2021-11-19 13:35:01,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370732,370745] [2021-11-19 13:35:01,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370891,370904] [2021-11-19 13:35:01,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371040,371053] [2021-11-19 13:35:01,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371187,371200] [2021-11-19 13:35:01,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371326,371339] [2021-11-19 13:35:01,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371489,371502] [2021-11-19 13:35:01,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371655,371668] [2021-11-19 13:35:01,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371819,371832] [2021-11-19 13:35:01,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371984,371997] [2021-11-19 13:35:01,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372149,372162] [2021-11-19 13:35:01,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372315,372328] [2021-11-19 13:35:01,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372480,372493] [2021-11-19 13:35:01,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372647,372660] [2021-11-19 13:35:01,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372807,372820] [2021-11-19 13:35:01,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372969,372982] [2021-11-19 13:35:01,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373128,373141] [2021-11-19 13:35:01,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373274,373287] [2021-11-19 13:35:01,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373417,373430] [2021-11-19 13:35:01,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373561,373574] [2021-11-19 13:35:01,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373704,373717] [2021-11-19 13:35:01,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373848,373861] [2021-11-19 13:35:01,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373989,374002] [2021-11-19 13:35:01,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374127,374140] [2021-11-19 13:35:01,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374285,374298] [2021-11-19 13:35:01,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374444,374457] [2021-11-19 13:35:01,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374600,374613] [2021-11-19 13:35:01,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374749,374762] [2021-11-19 13:35:01,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374901,374914] [2021-11-19 13:35:01,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375052,375065] [2021-11-19 13:35:01,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375201,375214] [2021-11-19 13:35:01,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375353,375366] [2021-11-19 13:35:01,609 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375501,375514] [2021-11-19 13:35:01,609 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375654,375667] [2021-11-19 13:35:01,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375805,375818] [2021-11-19 13:35:01,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375955,375968] [2021-11-19 13:35:01,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376102,376115] [2021-11-19 13:35:01,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376253,376266] [2021-11-19 13:35:01,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376404,376417] [2021-11-19 13:35:01,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376552,376565] [2021-11-19 13:35:01,613 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376718,376731] [2021-11-19 13:35:01,613 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376887,376900] [2021-11-19 13:35:01,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377054,377067] [2021-11-19 13:35:01,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377222,377235] [2021-11-19 13:35:01,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377372,377385] [2021-11-19 13:35:01,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377519,377532] [2021-11-19 13:35:01,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377680,377693] [2021-11-19 13:35:01,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377850,377863] [2021-11-19 13:35:01,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[378012,378025] [2021-11-19 13:35:01,627 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:01,681 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:35:01,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:35:02,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364624,364637] [2021-11-19 13:35:02,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364769,364782] [2021-11-19 13:35:02,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364915,364928] [2021-11-19 13:35:02,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365080,365093] [2021-11-19 13:35:02,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365238,365251] [2021-11-19 13:35:02,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365396,365409] [2021-11-19 13:35:02,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365554,365567] [2021-11-19 13:35:02,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365714,365727] [2021-11-19 13:35:02,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365873,365886] [2021-11-19 13:35:02,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366012,366025] [2021-11-19 13:35:02,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366154,366167] [2021-11-19 13:35:02,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366303,366316] [2021-11-19 13:35:02,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366442,366455] [2021-11-19 13:35:02,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366597,366610] [2021-11-19 13:35:02,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366757,366770] [2021-11-19 13:35:02,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366908,366921] [2021-11-19 13:35:02,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367059,367072] [2021-11-19 13:35:02,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367211,367224] [2021-11-19 13:35:02,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367360,367373] [2021-11-19 13:35:02,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367508,367521] [2021-11-19 13:35:02,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367665,367678] [2021-11-19 13:35:02,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367814,367827] [2021-11-19 13:35:02,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367970,367983] [2021-11-19 13:35:02,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368123,368136] [2021-11-19 13:35:02,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368269,368282] [2021-11-19 13:35:02,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368412,368425] [2021-11-19 13:35:02,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368564,368577] [2021-11-19 13:35:02,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368710,368723] [2021-11-19 13:35:02,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368855,368868] [2021-11-19 13:35:02,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369009,369022] [2021-11-19 13:35:02,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369160,369173] [2021-11-19 13:35:02,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369315,369328] [2021-11-19 13:35:02,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369467,369480] [2021-11-19 13:35:02,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369622,369635] [2021-11-19 13:35:02,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369786,369799] [2021-11-19 13:35:02,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369942,369955] [2021-11-19 13:35:02,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370106,370119] [2021-11-19 13:35:02,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370248,370261] [2021-11-19 13:35:02,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370406,370419] [2021-11-19 13:35:02,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370573,370586] [2021-11-19 13:35:02,124 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370732,370745] [2021-11-19 13:35:02,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370891,370904] [2021-11-19 13:35:02,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371040,371053] [2021-11-19 13:35:02,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371187,371200] [2021-11-19 13:35:02,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371326,371339] [2021-11-19 13:35:02,132 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371489,371502] [2021-11-19 13:35:02,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371655,371668] [2021-11-19 13:35:02,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371819,371832] [2021-11-19 13:35:02,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371984,371997] [2021-11-19 13:35:02,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372149,372162] [2021-11-19 13:35:02,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372315,372328] [2021-11-19 13:35:02,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372480,372493] [2021-11-19 13:35:02,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372647,372660] [2021-11-19 13:35:02,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372807,372820] [2021-11-19 13:35:02,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372969,372982] [2021-11-19 13:35:02,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373128,373141] [2021-11-19 13:35:02,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373274,373287] [2021-11-19 13:35:02,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373417,373430] [2021-11-19 13:35:02,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373561,373574] [2021-11-19 13:35:02,145 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373704,373717] [2021-11-19 13:35:02,148 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373848,373861] [2021-11-19 13:35:02,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373989,374002] [2021-11-19 13:35:02,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374127,374140] [2021-11-19 13:35:02,150 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374285,374298] [2021-11-19 13:35:02,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374444,374457] [2021-11-19 13:35:02,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374600,374613] [2021-11-19 13:35:02,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374749,374762] [2021-11-19 13:35:02,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374901,374914] [2021-11-19 13:35:02,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375052,375065] [2021-11-19 13:35:02,160 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375201,375214] [2021-11-19 13:35:02,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375353,375366] [2021-11-19 13:35:02,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375501,375514] [2021-11-19 13:35:02,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375654,375667] [2021-11-19 13:35:02,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375805,375818] [2021-11-19 13:35:02,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375955,375968] [2021-11-19 13:35:02,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376102,376115] [2021-11-19 13:35:02,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376253,376266] [2021-11-19 13:35:02,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376404,376417] [2021-11-19 13:35:02,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376552,376565] [2021-11-19 13:35:02,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376718,376731] [2021-11-19 13:35:02,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376887,376900] [2021-11-19 13:35:02,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377054,377067] [2021-11-19 13:35:02,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377222,377235] [2021-11-19 13:35:02,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377372,377385] [2021-11-19 13:35:02,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377519,377532] [2021-11-19 13:35:02,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377680,377693] [2021-11-19 13:35:02,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377850,377863] [2021-11-19 13:35:02,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[378012,378025] [2021-11-19 13:35:02,175 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:02,197 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:35:02,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364624,364637] [2021-11-19 13:35:02,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364769,364782] [2021-11-19 13:35:02,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[364915,364928] [2021-11-19 13:35:02,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365080,365093] [2021-11-19 13:35:02,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365238,365251] [2021-11-19 13:35:02,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365396,365409] [2021-11-19 13:35:02,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365554,365567] [2021-11-19 13:35:02,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365714,365727] [2021-11-19 13:35:02,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[365873,365886] [2021-11-19 13:35:02,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366012,366025] [2021-11-19 13:35:02,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366154,366167] [2021-11-19 13:35:02,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366303,366316] [2021-11-19 13:35:02,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366442,366455] [2021-11-19 13:35:02,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366597,366610] [2021-11-19 13:35:02,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366757,366770] [2021-11-19 13:35:02,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[366908,366921] [2021-11-19 13:35:02,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367059,367072] [2021-11-19 13:35:02,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367211,367224] [2021-11-19 13:35:02,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367360,367373] [2021-11-19 13:35:02,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367508,367521] [2021-11-19 13:35:02,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367665,367678] [2021-11-19 13:35:02,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367814,367827] [2021-11-19 13:35:02,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[367970,367983] [2021-11-19 13:35:02,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368123,368136] [2021-11-19 13:35:02,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368269,368282] [2021-11-19 13:35:02,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368412,368425] [2021-11-19 13:35:02,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368564,368577] [2021-11-19 13:35:02,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368710,368723] [2021-11-19 13:35:02,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[368855,368868] [2021-11-19 13:35:02,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369009,369022] [2021-11-19 13:35:02,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369160,369173] [2021-11-19 13:35:02,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369315,369328] [2021-11-19 13:35:02,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369467,369480] [2021-11-19 13:35:02,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369622,369635] [2021-11-19 13:35:02,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369786,369799] [2021-11-19 13:35:02,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[369942,369955] [2021-11-19 13:35:02,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370106,370119] [2021-11-19 13:35:02,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370248,370261] [2021-11-19 13:35:02,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370406,370419] [2021-11-19 13:35:02,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370573,370586] [2021-11-19 13:35:02,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370732,370745] [2021-11-19 13:35:02,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[370891,370904] [2021-11-19 13:35:02,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371040,371053] [2021-11-19 13:35:02,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371187,371200] [2021-11-19 13:35:02,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371326,371339] [2021-11-19 13:35:02,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371489,371502] [2021-11-19 13:35:02,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371655,371668] [2021-11-19 13:35:02,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371819,371832] [2021-11-19 13:35:02,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[371984,371997] [2021-11-19 13:35:02,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372149,372162] [2021-11-19 13:35:02,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372315,372328] [2021-11-19 13:35:02,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372480,372493] [2021-11-19 13:35:02,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372647,372660] [2021-11-19 13:35:02,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372807,372820] [2021-11-19 13:35:02,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[372969,372982] [2021-11-19 13:35:02,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373128,373141] [2021-11-19 13:35:02,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373274,373287] [2021-11-19 13:35:02,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373417,373430] [2021-11-19 13:35:02,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373561,373574] [2021-11-19 13:35:02,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373704,373717] [2021-11-19 13:35:02,704 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373848,373861] [2021-11-19 13:35:02,704 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[373989,374002] [2021-11-19 13:35:02,704 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374127,374140] [2021-11-19 13:35:02,705 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374285,374298] [2021-11-19 13:35:02,705 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374444,374457] [2021-11-19 13:35:02,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374600,374613] [2021-11-19 13:35:02,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374749,374762] [2021-11-19 13:35:02,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[374901,374914] [2021-11-19 13:35:02,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375052,375065] [2021-11-19 13:35:02,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375201,375214] [2021-11-19 13:35:02,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375353,375366] [2021-11-19 13:35:02,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375501,375514] [2021-11-19 13:35:02,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375654,375667] [2021-11-19 13:35:02,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375805,375818] [2021-11-19 13:35:02,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[375955,375968] [2021-11-19 13:35:02,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376102,376115] [2021-11-19 13:35:02,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376253,376266] [2021-11-19 13:35:02,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376404,376417] [2021-11-19 13:35:02,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376552,376565] [2021-11-19 13:35:02,712 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376718,376731] [2021-11-19 13:35:02,716 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[376887,376900] [2021-11-19 13:35:02,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377054,377067] [2021-11-19 13:35:02,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377222,377235] [2021-11-19 13:35:02,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377372,377385] [2021-11-19 13:35:02,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377519,377532] [2021-11-19 13:35:02,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377680,377693] [2021-11-19 13:35:02,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[377850,377863] [2021-11-19 13:35:02,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i[378012,378025] [2021-11-19 13:35:02,724 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:03,092 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:35:03,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03 WrapperNode [2021-11-19 13:35:03,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:35:03,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:35:03,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:35:03,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:35:03,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (1/1) ... [2021-11-19 13:35:03,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (1/1) ... [2021-11-19 13:35:03,443 INFO L137 Inliner]: procedures = 607, calls = 2864, calls flagged for inlining = 294, calls inlined = 217, statements flattened = 5998 [2021-11-19 13:35:03,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:35:03,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:35:03,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:35:03,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:35:03,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (1/1) ... [2021-11-19 13:35:03,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (1/1) ... [2021-11-19 13:35:03,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (1/1) ... [2021-11-19 13:35:03,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (1/1) ... [2021-11-19 13:35:03,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (1/1) ... [2021-11-19 13:35:03,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (1/1) ... [2021-11-19 13:35:03,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (1/1) ... [2021-11-19 13:35:03,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:35:03,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:35:03,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:35:03,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:35:03,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (1/1) ... [2021-11-19 13:35:03,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:35:03,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:35:03,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:35:03,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:35:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 13:35:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 13:35:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:35:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:35:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_get_frame [2021-11-19 13:35:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_get_frame [2021-11-19 13:35:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:35:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:35:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 13:35:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 13:35:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:35:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:35:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 13:35:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 13:35:03,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 13:35:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 13:35:03,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_isp116x [2021-11-19 13:35:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_isp116x [2021-11-19 13:35:03,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:35:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:35:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:35:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:35:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 13:35:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 13:35:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_read_reg32 [2021-11-19 13:35:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_read_reg32 [2021-11-19 13:35:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-19 13:35:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-19 13:35:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:35:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_raw_write_data16 [2021-11-19 13:35:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_raw_write_data16 [2021-11-19 13:35:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:35:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:35:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:35:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 13:35:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 13:35:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 13:35:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 13:35:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:35:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:35:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 13:35:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 13:35:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-11-19 13:35:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-11-19 13:35:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_read_data16 [2021-11-19 13:35:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_read_data16 [2021-11-19 13:35:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 13:35:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 13:35:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 13:35:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 13:35:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_122 [2021-11-19 13:35:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_122 [2021-11-19 13:35:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:35:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:35:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_hub_control [2021-11-19 13:35:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_hub_control [2021-11-19 13:35:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_reset [2021-11-19 13:35:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_reset [2021-11-19 13:35:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 13:35:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 13:35:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_isp116x [2021-11-19 13:35:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_isp116x [2021-11-19 13:35:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 13:35:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 13:35:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:35:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-19 13:35:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-19 13:35:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:35:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:35:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:35:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 13:35:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 13:35:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:35:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:35:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:35:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_hcd [2021-11-19 13:35:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_hcd [2021-11-19 13:35:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_bus_resume [2021-11-19 13:35:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_bus_resume [2021-11-19 13:35:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:35:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:35:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 13:35:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 13:35:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_start [2021-11-19 13:35:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_start [2021-11-19 13:35:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-19 13:35:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-19 13:35:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:35:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:35:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure finish_request [2021-11-19 13:35:03,885 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_request [2021-11-19 13:35:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:35:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_write_reg16 [2021-11-19 13:35:03,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_write_reg16 [2021-11-19 13:35:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 13:35:03,886 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 13:35:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:35:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:35:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:35:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:35:03,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:35:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:35:03,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:35:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-19 13:35:03,887 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-19 13:35:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_write_reg32 [2021-11-19 13:35:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_write_reg32 [2021-11-19 13:35:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_sw_reset [2021-11-19 13:35:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_sw_reset [2021-11-19 13:35:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-19 13:35:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-19 13:35:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_isp116x [2021-11-19 13:35:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_isp116x [2021-11-19 13:35:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2021-11-19 13:35:03,889 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2021-11-19 13:35:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_write_addr [2021-11-19 13:35:03,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_write_addr [2021-11-19 13:35:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_to_hcd [2021-11-19 13:35:03,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_to_hcd [2021-11-19 13:35:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 13:35:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 13:35:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 13:35:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 13:35:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:35:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 13:35:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 13:35:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 13:35:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 13:35:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:35:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-19 13:35:03,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-19 13:35:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-19 13:35:03,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-19 13:35:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:35:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:35:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_101 [2021-11-19 13:35:03,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_101 [2021-11-19 13:35:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:35:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:35:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:35:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 13:35:03,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 13:35:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:35:03,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:35:03,895 INFO L130 BoogieDeclarations]: Found specification of procedure start_atl_transfers [2021-11-19 13:35:03,895 INFO L138 BoogieDeclarations]: Found implementation of procedure start_atl_transfers [2021-11-19 13:35:03,895 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-11-19 13:35:03,895 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-11-19 13:35:03,895 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_probe [2021-11-19 13:35:03,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_probe [2021-11-19 13:35:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 13:35:03,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 13:35:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_write_data16 [2021-11-19 13:35:03,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_write_data16 [2021-11-19 13:35:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 13:35:03,896 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 13:35:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 13:35:03,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 13:35:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 13:35:03,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 13:35:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 13:35:03,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 13:35:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:35:03,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:35:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 13:35:03,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 13:35:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-19 13:35:03,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-19 13:35:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:35:03,898 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:35:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 13:35:03,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 13:35:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:35:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:35:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_96 [2021-11-19 13:35:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_96 [2021-11-19 13:35:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_read_reg16 [2021-11-19 13:35:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_read_reg16 [2021-11-19 13:35:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 13:35:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 13:35:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_95 [2021-11-19 13:35:03,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_95 [2021-11-19 13:35:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_stop [2021-11-19 13:35:03,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_stop [2021-11-19 13:35:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-19 13:35:03,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-19 13:35:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_bus_suspend [2021-11-19 13:35:03,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_bus_suspend [2021-11-19 13:35:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_raw_read_data16 [2021-11-19 13:35:03,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_raw_read_data16 [2021-11-19 13:35:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:35:03,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:35:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_resume [2021-11-19 13:35:03,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_resume [2021-11-19 13:35:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 13:35:03,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 13:35:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-19 13:35:03,902 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-19 13:35:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-19 13:35:03,902 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-19 13:35:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_121 [2021-11-19 13:35:03,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_121 [2021-11-19 13:35:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure isp116x_remove [2021-11-19 13:35:03,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isp116x_remove [2021-11-19 13:35:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-19 13:35:03,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-19 13:35:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2021-11-19 13:35:03,903 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2021-11-19 13:35:04,776 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:35:04,783 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:35:05,799 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:35:41,185 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:35:41,217 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:35:41,218 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 13:35:41,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:41 BoogieIcfgContainer [2021-11-19 13:35:41,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:35:41,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:35:41,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:35:41,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:35:41,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:34:57" (1/3) ... [2021-11-19 13:35:41,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96dd5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:35:41, skipping insertion in model container [2021-11-19 13:35:41,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:03" (2/3) ... [2021-11-19 13:35:41,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96dd5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:35:41, skipping insertion in model container [2021-11-19 13:35:41,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:41" (3/3) ... [2021-11-19 13:35:41,235 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--host--isp116x-hcd.ko.cil.i [2021-11-19 13:35:41,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:35:41,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-19 13:35:41,320 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:35:41,326 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:35:41,326 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-19 13:35:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 2060 states, 1392 states have (on average 1.3031609195402298) internal successors, (1814), 1461 states have internal predecessors, (1814), 547 states have call successors, (547), 94 states have call predecessors, (547), 93 states have return successors, (540), 532 states have call predecessors, (540), 540 states have call successors, (540) [2021-11-19 13:35:41,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-19 13:35:41,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:41,394 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:41,394 INFO L402 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 26 more)] === [2021-11-19 13:35:41,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:41,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1865567238, now seen corresponding path program 1 times [2021-11-19 13:35:41,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:41,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759238864] [2021-11-19 13:35:41,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:41,417 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:41,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:41,420 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:41,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:35:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:42,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:35:42,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:42,945 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:35:42,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:35:43,208 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:43,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759238864] [2021-11-19 13:35:43,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759238864] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:43,209 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:43,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:35:43,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558283391] [2021-11-19 13:35:43,211 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:43,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:35:43,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:43,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:35:43,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:35:43,264 INFO L87 Difference]: Start difference. First operand has 2060 states, 1392 states have (on average 1.3031609195402298) internal successors, (1814), 1461 states have internal predecessors, (1814), 547 states have call successors, (547), 94 states have call predecessors, (547), 93 states have return successors, (540), 532 states have call predecessors, (540), 540 states have call successors, (540) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 13:35:43,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:43,825 INFO L93 Difference]: Finished difference Result 6102 states and 8920 transitions. [2021-11-19 13:35:43,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:35:43,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 64 [2021-11-19 13:35:43,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:43,895 INFO L225 Difference]: With dead ends: 6102 [2021-11-19 13:35:43,895 INFO L226 Difference]: Without dead ends: 4034 [2021-11-19 13:35:43,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:35:43,930 INFO L933 BasicCegarLoop]: 3437 mSDtfsCounter, 2783 mSDsluCounter, 6291 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 9728 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:43,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2785 Valid, 9728 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:35:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2021-11-19 13:35:44,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 3838. [2021-11-19 13:35:44,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3838 states, 2621 states have (on average 1.2804273178176269) internal successors, (3356), 2722 states have internal predecessors, (3356), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:35:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 5430 transitions. [2021-11-19 13:35:44,352 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 5430 transitions. Word has length 64 [2021-11-19 13:35:44,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:44,353 INFO L470 AbstractCegarLoop]: Abstraction has 3838 states and 5430 transitions. [2021-11-19 13:35:44,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 13:35:44,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 5430 transitions. [2021-11-19 13:35:44,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 13:35:44,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:44,365 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:44,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:44,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:44,579 INFO L402 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 26 more)] === [2021-11-19 13:35:44,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:44,580 INFO L85 PathProgramCache]: Analyzing trace with hash 556190082, now seen corresponding path program 1 times [2021-11-19 13:35:44,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:44,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058080429] [2021-11-19 13:35:44,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:44,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:44,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:44,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:44,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:35:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:45,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:35:45,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:35:45,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:35:46,217 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:46,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058080429] [2021-11-19 13:35:46,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058080429] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:46,217 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:46,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:35:46,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896049579] [2021-11-19 13:35:46,217 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:46,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:35:46,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:46,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:35:46,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:35:46,220 INFO L87 Difference]: Start difference. First operand 3838 states and 5430 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:35:46,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:46,464 INFO L93 Difference]: Finished difference Result 3838 states and 5430 transitions. [2021-11-19 13:35:46,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:35:46,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 70 [2021-11-19 13:35:46,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:46,499 INFO L225 Difference]: With dead ends: 3838 [2021-11-19 13:35:46,500 INFO L226 Difference]: Without dead ends: 3836 [2021-11-19 13:35:46,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:35:46,504 INFO L933 BasicCegarLoop]: 2828 mSDtfsCounter, 2775 mSDsluCounter, 5652 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2777 SdHoareTripleChecker+Valid, 8480 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:46,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2777 Valid, 8480 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:35:46,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2021-11-19 13:35:46,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 3836. [2021-11-19 13:35:46,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3836 states, 2620 states have (on average 1.2801526717557252) internal successors, (3354), 2720 states have internal predecessors, (3354), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:35:46,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 5428 transitions. [2021-11-19 13:35:46,773 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 5428 transitions. Word has length 70 [2021-11-19 13:35:46,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:46,774 INFO L470 AbstractCegarLoop]: Abstraction has 3836 states and 5428 transitions. [2021-11-19 13:35:46,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:35:46,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 5428 transitions. [2021-11-19 13:35:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 13:35:46,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:46,777 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:46,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:46,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:46,991 INFO L402 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 26 more)] === [2021-11-19 13:35:46,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:46,991 INFO L85 PathProgramCache]: Analyzing trace with hash -648324019, now seen corresponding path program 1 times [2021-11-19 13:35:46,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:46,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035754466] [2021-11-19 13:35:46,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:46,994 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:46,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:46,997 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:47,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:35:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:47,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:35:47,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:48,368 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:35:48,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:35:48,634 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:48,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035754466] [2021-11-19 13:35:48,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035754466] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:48,635 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:48,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:35:48,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144324786] [2021-11-19 13:35:48,635 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:48,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:35:48,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:48,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:35:48,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:35:48,637 INFO L87 Difference]: Start difference. First operand 3836 states and 5428 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:35:48,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:48,856 INFO L93 Difference]: Finished difference Result 3836 states and 5428 transitions. [2021-11-19 13:35:48,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:35:48,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 76 [2021-11-19 13:35:48,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:48,897 INFO L225 Difference]: With dead ends: 3836 [2021-11-19 13:35:48,898 INFO L226 Difference]: Without dead ends: 3834 [2021-11-19 13:35:48,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:35:48,904 INFO L933 BasicCegarLoop]: 2826 mSDtfsCounter, 2770 mSDsluCounter, 2824 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2772 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:48,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2772 Valid, 5650 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:35:48,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3834 states. [2021-11-19 13:35:49,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3834 to 3834. [2021-11-19 13:35:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3834 states, 2619 states have (on average 1.2798778159602902) internal successors, (3352), 2718 states have internal predecessors, (3352), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:35:49,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3834 states to 3834 states and 5426 transitions. [2021-11-19 13:35:49,217 INFO L78 Accepts]: Start accepts. Automaton has 3834 states and 5426 transitions. Word has length 76 [2021-11-19 13:35:49,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:49,219 INFO L470 AbstractCegarLoop]: Abstraction has 3834 states and 5426 transitions. [2021-11-19 13:35:49,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:35:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand 3834 states and 5426 transitions. [2021-11-19 13:35:49,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-19 13:35:49,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:49,222 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:49,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 13:35:49,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:49,439 INFO L402 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 26 more)] === [2021-11-19 13:35:49,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:49,440 INFO L85 PathProgramCache]: Analyzing trace with hash 120591932, now seen corresponding path program 1 times [2021-11-19 13:35:49,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:49,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781048249] [2021-11-19 13:35:49,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:49,442 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:49,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:49,444 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:49,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:35:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:50,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:35:50,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:50,723 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:35:50,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:35:51,043 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:51,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781048249] [2021-11-19 13:35:51,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781048249] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:51,044 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:51,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:35:51,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210450507] [2021-11-19 13:35:51,044 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:51,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:35:51,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:51,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:35:51,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:35:51,045 INFO L87 Difference]: Start difference. First operand 3834 states and 5426 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 13:35:51,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:51,293 INFO L93 Difference]: Finished difference Result 3834 states and 5426 transitions. [2021-11-19 13:35:51,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:35:51,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 82 [2021-11-19 13:35:51,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:51,329 INFO L225 Difference]: With dead ends: 3834 [2021-11-19 13:35:51,329 INFO L226 Difference]: Without dead ends: 3832 [2021-11-19 13:35:51,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:35:51,335 INFO L933 BasicCegarLoop]: 2824 mSDtfsCounter, 2759 mSDsluCounter, 5644 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2761 SdHoareTripleChecker+Valid, 8468 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:51,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2761 Valid, 8468 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:35:51,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2021-11-19 13:35:51,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 3832. [2021-11-19 13:35:51,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 2618 states have (on average 1.2796027501909855) internal successors, (3350), 2716 states have internal predecessors, (3350), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:35:51,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 5424 transitions. [2021-11-19 13:35:51,686 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 5424 transitions. Word has length 82 [2021-11-19 13:35:51,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:51,686 INFO L470 AbstractCegarLoop]: Abstraction has 3832 states and 5424 transitions. [2021-11-19 13:35:51,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 13:35:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 5424 transitions. [2021-11-19 13:35:51,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-19 13:35:51,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:51,690 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-19 13:35:51,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:51,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:51,911 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 26 more)] === [2021-11-19 13:35:51,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:51,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1255222803, now seen corresponding path program 1 times [2021-11-19 13:35:51,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:51,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309056493] [2021-11-19 13:35:51,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:51,915 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:51,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:51,916 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:51,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:35:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:52,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:35:52,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:53,256 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 52 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 13:35:53,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:53,903 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-19 13:35:53,903 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:53,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309056493] [2021-11-19 13:35:53,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309056493] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:35:53,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1623058076] [2021-11-19 13:35:53,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:53,904 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:35:53,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:35:53,915 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:35:53,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-19 13:35:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:54,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:35:54,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:55,179 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-19 13:35:55,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:55,437 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-19 13:35:55,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1623058076] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:55,437 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:35:55,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-19 13:35:55,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321683701] [2021-11-19 13:35:55,438 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:55,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:35:55,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:55,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:35:55,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:35:55,439 INFO L87 Difference]: Start difference. First operand 3832 states and 5424 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 13:35:57,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:57,731 INFO L93 Difference]: Finished difference Result 7639 states and 10813 transitions. [2021-11-19 13:35:57,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:35:57,732 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), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 93 [2021-11-19 13:35:57,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:57,764 INFO L225 Difference]: With dead ends: 7639 [2021-11-19 13:35:57,764 INFO L226 Difference]: Without dead ends: 3826 [2021-11-19 13:35:57,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:35:57,789 INFO L933 BasicCegarLoop]: 2820 mSDtfsCounter, 4539 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1075 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4539 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1075 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:57,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4539 Valid, 2820 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1075 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-19 13:35:57,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3826 states. [2021-11-19 13:35:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3826 to 3826. [2021-11-19 13:35:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 2613 states have (on average 1.2786069651741294) internal successors, (3341), 2710 states have internal predecessors, (3341), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:35:58,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 5415 transitions. [2021-11-19 13:35:58,094 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 5415 transitions. Word has length 93 [2021-11-19 13:35:58,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:58,095 INFO L470 AbstractCegarLoop]: Abstraction has 3826 states and 5415 transitions. [2021-11-19 13:35:58,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 13:35:58,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 5415 transitions. [2021-11-19 13:35:58,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-19 13:35:58,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:58,103 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:58,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-19 13:35:58,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:58,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:58,523 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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 26 more)] === [2021-11-19 13:35:58,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:58,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1236564687, now seen corresponding path program 1 times [2021-11-19 13:35:58,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:58,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077312017] [2021-11-19 13:35:58,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:58,528 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:58,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:58,529 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:58,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:35:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:59,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:35:59,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:59,826 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:35:59,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:00,066 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:00,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077312017] [2021-11-19 13:36:00,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077312017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:00,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:00,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:36:00,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769951864] [2021-11-19 13:36:00,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:00,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:00,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:00,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:00,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:36:00,068 INFO L87 Difference]: Start difference. First operand 3826 states and 5415 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 13:36:00,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:00,397 INFO L93 Difference]: Finished difference Result 3826 states and 5415 transitions. [2021-11-19 13:36:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:00,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 88 [2021-11-19 13:36:00,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:00,431 INFO L225 Difference]: With dead ends: 3826 [2021-11-19 13:36:00,432 INFO L226 Difference]: Without dead ends: 3824 [2021-11-19 13:36:00,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:00,437 INFO L933 BasicCegarLoop]: 2817 mSDtfsCounter, 2746 mSDsluCounter, 5630 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2748 SdHoareTripleChecker+Valid, 8447 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:00,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2748 Valid, 8447 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:00,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3824 states. [2021-11-19 13:36:00,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3824 to 3824. [2021-11-19 13:36:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3824 states, 2612 states have (on average 1.2783307810107198) internal successors, (3339), 2708 states have internal predecessors, (3339), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:36:00,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3824 states to 3824 states and 5413 transitions. [2021-11-19 13:36:00,741 INFO L78 Accepts]: Start accepts. Automaton has 3824 states and 5413 transitions. Word has length 88 [2021-11-19 13:36:00,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:00,742 INFO L470 AbstractCegarLoop]: Abstraction has 3824 states and 5413 transitions. [2021-11-19 13:36:00,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 13:36:00,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3824 states and 5413 transitions. [2021-11-19 13:36:00,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-19 13:36:00,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:00,744 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-19 13:36:00,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:00,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:00,968 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:36:00,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:00,968 INFO L85 PathProgramCache]: Analyzing trace with hash -961542788, now seen corresponding path program 1 times [2021-11-19 13:36:00,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:00,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016885570] [2021-11-19 13:36:00,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:00,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:00,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:00,973 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:01,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:36:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:02,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:36:02,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:02,417 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 52 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 13:36:02,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:02,984 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:36:02,984 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:02,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016885570] [2021-11-19 13:36:02,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016885570] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:36:02,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [761940151] [2021-11-19 13:36:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:02,985 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:36:02,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:36:03,000 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:36:03,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-19 13:36:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:04,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:36:04,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:04,249 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-19 13:36:04,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-19 13:36:04,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [761940151] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:04,524 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:36:04,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-19 13:36:04,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042820170] [2021-11-19 13:36:04,525 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:04,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:36:04,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:04,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:36:04,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:36:04,527 INFO L87 Difference]: Start difference. First operand 3824 states and 5413 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 13:36:04,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:04,895 INFO L93 Difference]: Finished difference Result 7623 states and 10791 transitions. [2021-11-19 13:36:04,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:36:04,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 99 [2021-11-19 13:36:04,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:04,945 INFO L225 Difference]: With dead ends: 7623 [2021-11-19 13:36:04,945 INFO L226 Difference]: Without dead ends: 3818 [2021-11-19 13:36:04,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:36:04,969 INFO L933 BasicCegarLoop]: 2813 mSDtfsCounter, 2799 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:04,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2799 Valid, 2813 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:36:04,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2021-11-19 13:36:05,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3818. [2021-11-19 13:36:05,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 2607 states have (on average 1.2773302646720368) internal successors, (3330), 2702 states have internal predecessors, (3330), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:36:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 5404 transitions. [2021-11-19 13:36:05,331 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 5404 transitions. Word has length 99 [2021-11-19 13:36:05,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:05,332 INFO L470 AbstractCegarLoop]: Abstraction has 3818 states and 5404 transitions. [2021-11-19 13:36:05,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 13:36:05,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 5404 transitions. [2021-11-19 13:36:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-19 13:36:05,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:05,335 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:05,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:05,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:05,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:05,757 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 26 more)] === [2021-11-19 13:36:05,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:05,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1018169455, now seen corresponding path program 1 times [2021-11-19 13:36:05,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:05,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123897602] [2021-11-19 13:36:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:05,761 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:05,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:05,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:05,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:36:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:06,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:06,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:06,976 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:06,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:07,223 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:07,223 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:07,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123897602] [2021-11-19 13:36:07,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123897602] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:07,223 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:07,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:36:07,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756912544] [2021-11-19 13:36:07,224 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:07,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:07,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:07,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:07,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:36:07,225 INFO L87 Difference]: Start difference. First operand 3818 states and 5404 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:36:07,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:07,465 INFO L93 Difference]: Finished difference Result 3818 states and 5404 transitions. [2021-11-19 13:36:07,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:07,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 94 [2021-11-19 13:36:07,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:07,485 INFO L225 Difference]: With dead ends: 3818 [2021-11-19 13:36:07,486 INFO L226 Difference]: Without dead ends: 3816 [2021-11-19 13:36:07,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:07,489 INFO L933 BasicCegarLoop]: 2810 mSDtfsCounter, 2733 mSDsluCounter, 5616 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2735 SdHoareTripleChecker+Valid, 8426 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:07,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2735 Valid, 8426 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:07,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3816 states. [2021-11-19 13:36:07,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3816 to 3816. [2021-11-19 13:36:07,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3816 states, 2606 states have (on average 1.2770529547198772) internal successors, (3328), 2700 states have internal predecessors, (3328), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:36:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3816 states to 3816 states and 5402 transitions. [2021-11-19 13:36:07,812 INFO L78 Accepts]: Start accepts. Automaton has 3816 states and 5402 transitions. Word has length 94 [2021-11-19 13:36:07,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:07,813 INFO L470 AbstractCegarLoop]: Abstraction has 3816 states and 5402 transitions. [2021-11-19 13:36:07,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:36:07,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3816 states and 5402 transitions. [2021-11-19 13:36:07,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-19 13:36:07,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:07,815 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:07,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:08,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:08,038 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:36:08,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:08,038 INFO L85 PathProgramCache]: Analyzing trace with hash 810579407, now seen corresponding path program 1 times [2021-11-19 13:36:08,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:08,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747472523] [2021-11-19 13:36:08,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:08,041 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:08,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:08,042 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:08,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:36:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:08,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:08,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:09,180 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:09,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:09,452 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:09,453 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:09,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747472523] [2021-11-19 13:36:09,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747472523] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:09,453 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:09,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:36:09,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143098480] [2021-11-19 13:36:09,453 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:09,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:09,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:09,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:09,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:36:09,454 INFO L87 Difference]: Start difference. First operand 3816 states and 5402 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 13:36:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:09,693 INFO L93 Difference]: Finished difference Result 3816 states and 5402 transitions. [2021-11-19 13:36:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:09,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 100 [2021-11-19 13:36:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:09,713 INFO L225 Difference]: With dead ends: 3816 [2021-11-19 13:36:09,713 INFO L226 Difference]: Without dead ends: 3814 [2021-11-19 13:36:09,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:09,717 INFO L933 BasicCegarLoop]: 2808 mSDtfsCounter, 2725 mSDsluCounter, 5612 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 8420 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:09,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2727 Valid, 8420 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:09,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3814 states. [2021-11-19 13:36:10,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3814 to 3814. [2021-11-19 13:36:10,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3814 states, 2605 states have (on average 1.2767754318618043) internal successors, (3326), 2698 states have internal predecessors, (3326), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:36:10,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 5400 transitions. [2021-11-19 13:36:10,045 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 5400 transitions. Word has length 100 [2021-11-19 13:36:10,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:10,046 INFO L470 AbstractCegarLoop]: Abstraction has 3814 states and 5400 transitions. [2021-11-19 13:36:10,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 13:36:10,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 5400 transitions. [2021-11-19 13:36:10,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-19 13:36:10,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:10,050 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:10,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:10,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:10,271 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:36:10,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:10,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1373787249, now seen corresponding path program 1 times [2021-11-19 13:36:10,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:10,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359866888] [2021-11-19 13:36:10,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:10,273 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:10,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:10,274 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:10,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:36:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:11,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:11,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:11,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:11,822 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:11,822 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:11,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359866888] [2021-11-19 13:36:11,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359866888] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:11,823 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:11,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:36:11,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465565259] [2021-11-19 13:36:11,823 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:11,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:11,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:11,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:11,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:36:11,826 INFO L87 Difference]: Start difference. First operand 3814 states and 5400 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:36:12,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:12,111 INFO L93 Difference]: Finished difference Result 3814 states and 5400 transitions. [2021-11-19 13:36:12,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:12,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 106 [2021-11-19 13:36:12,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:12,132 INFO L225 Difference]: With dead ends: 3814 [2021-11-19 13:36:12,133 INFO L226 Difference]: Without dead ends: 3812 [2021-11-19 13:36:12,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:12,136 INFO L933 BasicCegarLoop]: 2806 mSDtfsCounter, 2721 mSDsluCounter, 5600 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 8406 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:12,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2723 Valid, 8406 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:12,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3812 states. [2021-11-19 13:36:12,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3812 to 3812. [2021-11-19 13:36:12,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3812 states, 2604 states have (on average 1.2764976958525345) internal successors, (3324), 2696 states have internal predecessors, (3324), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:36:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3812 states to 3812 states and 5398 transitions. [2021-11-19 13:36:12,459 INFO L78 Accepts]: Start accepts. Automaton has 3812 states and 5398 transitions. Word has length 106 [2021-11-19 13:36:12,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:12,460 INFO L470 AbstractCegarLoop]: Abstraction has 3812 states and 5398 transitions. [2021-11-19 13:36:12,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:36:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3812 states and 5398 transitions. [2021-11-19 13:36:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 13:36:12,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:12,462 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:12,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:12,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:12,679 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:36:12,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:12,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1654722964, now seen corresponding path program 1 times [2021-11-19 13:36:12,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:12,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140213752] [2021-11-19 13:36:12,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:12,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:12,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:12,683 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:12,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 13:36:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:13,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:13,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:13,962 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:13,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:14,293 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:14,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140213752] [2021-11-19 13:36:14,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140213752] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:14,294 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:14,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:36:14,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725616224] [2021-11-19 13:36:14,294 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:14,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:14,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:14,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:14,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:36:14,296 INFO L87 Difference]: Start difference. First operand 3812 states and 5398 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:36:14,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:14,553 INFO L93 Difference]: Finished difference Result 3812 states and 5398 transitions. [2021-11-19 13:36:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:14,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 108 [2021-11-19 13:36:14,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:14,575 INFO L225 Difference]: With dead ends: 3812 [2021-11-19 13:36:14,576 INFO L226 Difference]: Without dead ends: 3810 [2021-11-19 13:36:14,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:14,580 INFO L933 BasicCegarLoop]: 2804 mSDtfsCounter, 2716 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 5606 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:14,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2718 Valid, 5606 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:14,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2021-11-19 13:36:14,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3810. [2021-11-19 13:36:14,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3810 states, 2603 states have (on average 1.276219746446408) internal successors, (3322), 2694 states have internal predecessors, (3322), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:36:14,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3810 states to 3810 states and 5396 transitions. [2021-11-19 13:36:14,953 INFO L78 Accepts]: Start accepts. Automaton has 3810 states and 5396 transitions. Word has length 108 [2021-11-19 13:36:14,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:14,957 INFO L470 AbstractCegarLoop]: Abstraction has 3810 states and 5396 transitions. [2021-11-19 13:36:14,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:36:14,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3810 states and 5396 transitions. [2021-11-19 13:36:14,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 13:36:14,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:14,960 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:14,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:15,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:15,183 INFO L402 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 26 more)] === [2021-11-19 13:36:15,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:15,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1914047915, now seen corresponding path program 1 times [2021-11-19 13:36:15,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:15,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373741441] [2021-11-19 13:36:15,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:15,185 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:15,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:15,186 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:15,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 13:36:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:15,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1487 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:15,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:16,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:16,776 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:16,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373741441] [2021-11-19 13:36:16,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373741441] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:16,777 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:16,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:36:16,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626876885] [2021-11-19 13:36:16,777 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:16,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:16,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:16,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:16,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:36:16,778 INFO L87 Difference]: Start difference. First operand 3810 states and 5396 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:36:17,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:17,021 INFO L93 Difference]: Finished difference Result 3810 states and 5396 transitions. [2021-11-19 13:36:17,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:17,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 114 [2021-11-19 13:36:17,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:17,040 INFO L225 Difference]: With dead ends: 3810 [2021-11-19 13:36:17,040 INFO L226 Difference]: Without dead ends: 3808 [2021-11-19 13:36:17,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:17,043 INFO L933 BasicCegarLoop]: 2802 mSDtfsCounter, 2708 mSDsluCounter, 2800 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2710 SdHoareTripleChecker+Valid, 5602 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:17,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2710 Valid, 5602 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:17,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2021-11-19 13:36:17,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3808. [2021-11-19 13:36:17,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3808 states, 2602 states have (on average 1.2759415833973866) internal successors, (3320), 2692 states have internal predecessors, (3320), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:36:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 5394 transitions. [2021-11-19 13:36:17,428 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 5394 transitions. Word has length 114 [2021-11-19 13:36:17,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:17,429 INFO L470 AbstractCegarLoop]: Abstraction has 3808 states and 5394 transitions. [2021-11-19 13:36:17,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:36:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 5394 transitions. [2021-11-19 13:36:17,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 13:36:17,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:17,432 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:17,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:17,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:17,656 INFO L402 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 26 more)] === [2021-11-19 13:36:17,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:17,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1044721861, now seen corresponding path program 1 times [2021-11-19 13:36:17,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:17,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980090971] [2021-11-19 13:36:17,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:17,658 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:17,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:17,659 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:17,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 13:36:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:18,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:18,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:18,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:19,186 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:19,186 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:19,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980090971] [2021-11-19 13:36:19,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980090971] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:19,187 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:19,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:36:19,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500192456] [2021-11-19 13:36:19,187 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:19,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:19,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:19,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:19,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:36:19,188 INFO L87 Difference]: Start difference. First operand 3808 states and 5394 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:36:19,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:19,451 INFO L93 Difference]: Finished difference Result 3808 states and 5394 transitions. [2021-11-19 13:36:19,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:19,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 120 [2021-11-19 13:36:19,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:19,468 INFO L225 Difference]: With dead ends: 3808 [2021-11-19 13:36:19,469 INFO L226 Difference]: Without dead ends: 3806 [2021-11-19 13:36:19,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:19,472 INFO L933 BasicCegarLoop]: 2800 mSDtfsCounter, 2697 mSDsluCounter, 5596 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2699 SdHoareTripleChecker+Valid, 8396 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:19,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2699 Valid, 8396 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:19,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2021-11-19 13:36:19,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3806. [2021-11-19 13:36:19,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 2601 states have (on average 1.2756632064590543) internal successors, (3318), 2690 states have internal predecessors, (3318), 1024 states have call successors, (1024), 166 states have call predecessors, (1024), 165 states have return successors, (1050), 1001 states have call predecessors, (1050), 1022 states have call successors, (1050) [2021-11-19 13:36:19,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 5392 transitions. [2021-11-19 13:36:19,819 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 5392 transitions. Word has length 120 [2021-11-19 13:36:19,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:19,819 INFO L470 AbstractCegarLoop]: Abstraction has 3806 states and 5392 transitions. [2021-11-19 13:36:19,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:36:19,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 5392 transitions. [2021-11-19 13:36:19,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-19 13:36:19,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:19,823 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:19,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:20,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:20,046 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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 26 more)] === [2021-11-19 13:36:20,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:20,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1391321386, now seen corresponding path program 1 times [2021-11-19 13:36:20,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:20,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885324126] [2021-11-19 13:36:20,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:20,048 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:20,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:20,049 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:20,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 13:36:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:20,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 13:36:20,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:21,738 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 149 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-19 13:36:21,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-19 13:36:22,447 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:22,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885324126] [2021-11-19 13:36:22,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885324126] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:36:22,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1128601900] [2021-11-19 13:36:22,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:22,448 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:36:22,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:36:22,449 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:36:22,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-19 13:36:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:26,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:36:26,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:27,308 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-11-19 13:36:27,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:27,856 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-11-19 13:36:27,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1128601900] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:27,856 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:36:27,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [17, 17] total 25 [2021-11-19 13:36:27,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527985524] [2021-11-19 13:36:27,857 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:27,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:36:27,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:27,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:36:27,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2021-11-19 13:36:27,858 INFO L87 Difference]: Start difference. First operand 3806 states and 5392 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 13:36:28,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:28,309 INFO L93 Difference]: Finished difference Result 3884 states and 5454 transitions. [2021-11-19 13:36:28,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:36:28,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 167 [2021-11-19 13:36:28,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:28,322 INFO L225 Difference]: With dead ends: 3884 [2021-11-19 13:36:28,323 INFO L226 Difference]: Without dead ends: 3882 [2021-11-19 13:36:28,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 641 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2021-11-19 13:36:28,325 INFO L933 BasicCegarLoop]: 2802 mSDtfsCounter, 1414 mSDsluCounter, 6937 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 9739 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:28,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1415 Valid, 9739 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:28,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2021-11-19 13:36:28,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3882. [2021-11-19 13:36:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 2650 states have (on average 1.269811320754717) internal successors, (3365), 2738 states have internal predecessors, (3365), 1030 states have call successors, (1030), 188 states have call predecessors, (1030), 187 states have return successors, (1056), 1007 states have call predecessors, (1056), 1028 states have call successors, (1056) [2021-11-19 13:36:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 5451 transitions. [2021-11-19 13:36:28,691 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 5451 transitions. Word has length 167 [2021-11-19 13:36:28,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:28,692 INFO L470 AbstractCegarLoop]: Abstraction has 3882 states and 5451 transitions. [2021-11-19 13:36:28,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 13:36:28,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 5451 transitions. [2021-11-19 13:36:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 13:36:28,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:28,695 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:28,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:28,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:29,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:36:29,111 INFO L402 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 26 more)] === [2021-11-19 13:36:29,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:29,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1282369092, now seen corresponding path program 1 times [2021-11-19 13:36:29,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:29,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724424959] [2021-11-19 13:36:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:29,114 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:29,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:29,115 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:29,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 13:36:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:30,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:30,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:30,584 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:30,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:30,897 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:30,897 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:30,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724424959] [2021-11-19 13:36:30,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724424959] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:30,897 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:30,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:36:30,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431695360] [2021-11-19 13:36:30,898 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:30,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:30,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:30,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:30,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:36:30,900 INFO L87 Difference]: Start difference. First operand 3882 states and 5451 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 13:36:31,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:31,341 INFO L93 Difference]: Finished difference Result 3882 states and 5451 transitions. [2021-11-19 13:36:31,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:31,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 126 [2021-11-19 13:36:31,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:31,356 INFO L225 Difference]: With dead ends: 3882 [2021-11-19 13:36:31,356 INFO L226 Difference]: Without dead ends: 3880 [2021-11-19 13:36:31,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:31,360 INFO L933 BasicCegarLoop]: 2796 mSDtfsCounter, 2690 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2692 SdHoareTripleChecker+Valid, 5590 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:31,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2692 Valid, 5590 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:31,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3880 states. [2021-11-19 13:36:31,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3880 to 3880. [2021-11-19 13:36:31,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3880 states, 2649 states have (on average 1.2695356738391845) internal successors, (3363), 2736 states have internal predecessors, (3363), 1030 states have call successors, (1030), 188 states have call predecessors, (1030), 187 states have return successors, (1056), 1007 states have call predecessors, (1056), 1028 states have call successors, (1056) [2021-11-19 13:36:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 5449 transitions. [2021-11-19 13:36:31,753 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 5449 transitions. Word has length 126 [2021-11-19 13:36:31,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:31,753 INFO L470 AbstractCegarLoop]: Abstraction has 3880 states and 5449 transitions. [2021-11-19 13:36:31,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 13:36:31,754 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 5449 transitions. [2021-11-19 13:36:31,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-19 13:36:31,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:31,757 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:31,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:31,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:31,979 INFO L402 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 26 more)] === [2021-11-19 13:36:31,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:31,979 INFO L85 PathProgramCache]: Analyzing trace with hash 428855133, now seen corresponding path program 1 times [2021-11-19 13:36:31,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:31,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620760075] [2021-11-19 13:36:31,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:31,981 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:31,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:31,983 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:32,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 13:36:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:32,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1514 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:32,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:33,427 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:33,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:33,756 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:33,756 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:33,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620760075] [2021-11-19 13:36:33,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620760075] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:33,756 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:33,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:36:33,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613158588] [2021-11-19 13:36:33,757 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:33,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:33,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:33,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:33,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:36:33,758 INFO L87 Difference]: Start difference. First operand 3880 states and 5449 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 13:36:34,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:34,121 INFO L93 Difference]: Finished difference Result 3880 states and 5449 transitions. [2021-11-19 13:36:34,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:34,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 132 [2021-11-19 13:36:34,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:34,139 INFO L225 Difference]: With dead ends: 3880 [2021-11-19 13:36:34,140 INFO L226 Difference]: Without dead ends: 3878 [2021-11-19 13:36:34,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:34,144 INFO L933 BasicCegarLoop]: 2794 mSDtfsCounter, 2679 mSDsluCounter, 5584 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2681 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:34,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2681 Valid, 8378 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:34,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3878 states. [2021-11-19 13:36:34,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3878 to 3878. [2021-11-19 13:36:34,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 2648 states have (on average 1.269259818731118) internal successors, (3361), 2734 states have internal predecessors, (3361), 1030 states have call successors, (1030), 188 states have call predecessors, (1030), 187 states have return successors, (1056), 1007 states have call predecessors, (1056), 1028 states have call successors, (1056) [2021-11-19 13:36:34,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 5447 transitions. [2021-11-19 13:36:34,593 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 5447 transitions. Word has length 132 [2021-11-19 13:36:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:34,597 INFO L470 AbstractCegarLoop]: Abstraction has 3878 states and 5447 transitions. [2021-11-19 13:36:34,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 13:36:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 5447 transitions. [2021-11-19 13:36:34,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-19 13:36:34,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:34,602 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:34,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:34,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:34,823 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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 26 more)] === [2021-11-19 13:36:34,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:34,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1563318757, now seen corresponding path program 1 times [2021-11-19 13:36:34,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:34,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476907534] [2021-11-19 13:36:34,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:34,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:34,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:34,828 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:34,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 13:36:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:35,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:35,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:36,259 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:36,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:36,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:36,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476907534] [2021-11-19 13:36:36,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476907534] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:36,594 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:36,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:36:36,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077862874] [2021-11-19 13:36:36,595 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:36,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:36:36,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:36,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:36:36,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:36:36,597 INFO L87 Difference]: Start difference. First operand 3878 states and 5447 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 13:36:36,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:36,921 INFO L93 Difference]: Finished difference Result 3878 states and 5447 transitions. [2021-11-19 13:36:36,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:36,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 138 [2021-11-19 13:36:36,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:36,936 INFO L225 Difference]: With dead ends: 3878 [2021-11-19 13:36:36,936 INFO L226 Difference]: Without dead ends: 3876 [2021-11-19 13:36:36,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:36,940 INFO L933 BasicCegarLoop]: 2792 mSDtfsCounter, 2674 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:36,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2676 Valid, 5582 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:36,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3876 states. [2021-11-19 13:36:37,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3876 to 3876. [2021-11-19 13:36:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3876 states, 2647 states have (on average 1.26898375519456) internal successors, (3359), 2732 states have internal predecessors, (3359), 1030 states have call successors, (1030), 188 states have call predecessors, (1030), 187 states have return successors, (1056), 1007 states have call predecessors, (1056), 1028 states have call successors, (1056) [2021-11-19 13:36:37,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3876 states to 3876 states and 5445 transitions. [2021-11-19 13:36:37,393 INFO L78 Accepts]: Start accepts. Automaton has 3876 states and 5445 transitions. Word has length 138 [2021-11-19 13:36:37,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:37,394 INFO L470 AbstractCegarLoop]: Abstraction has 3876 states and 5445 transitions. [2021-11-19 13:36:37,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 13:36:37,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3876 states and 5445 transitions. [2021-11-19 13:36:37,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-19 13:36:37,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:37,397 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 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] [2021-11-19 13:36:37,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:37,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:37,619 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:36:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1714207644, now seen corresponding path program 1 times [2021-11-19 13:36:37,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:37,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550213565] [2021-11-19 13:36:37,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:37,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:37,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:37,622 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:37,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 13:36:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:38,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1685 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:36:38,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:39,142 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 90 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-19 13:36:39,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-19 13:36:39,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:39,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550213565] [2021-11-19 13:36:39,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550213565] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:36:39,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [747549443] [2021-11-19 13:36:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:39,921 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:36:39,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:36:39,922 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:36:39,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-19 13:36:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:43,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1685 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:36:43,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-19 13:36:44,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:44,826 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-11-19 13:36:44,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [747549443] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:36:44,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:36:44,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 6] total 13 [2021-11-19 13:36:44,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215602583] [2021-11-19 13:36:44,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:44,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:36:44,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:44,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:36:44,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:36:44,828 INFO L87 Difference]: Start difference. First operand 3876 states and 5445 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-19 13:36:45,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:45,498 INFO L93 Difference]: Finished difference Result 8259 states and 11675 transitions. [2021-11-19 13:36:45,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:36:45,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 157 [2021-11-19 13:36:45,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:45,518 INFO L225 Difference]: With dead ends: 8259 [2021-11-19 13:36:45,518 INFO L226 Difference]: Without dead ends: 4400 [2021-11-19 13:36:45,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:36:45,544 INFO L933 BasicCegarLoop]: 3312 mSDtfsCounter, 656 mSDsluCounter, 12615 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 15927 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:45,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [866 Valid, 15927 Invalid, 12 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:45,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4400 states. [2021-11-19 13:36:46,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4400 to 3876. [2021-11-19 13:36:46,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3876 states, 2647 states have (on average 1.2686059690215339) internal successors, (3358), 2731 states have internal predecessors, (3358), 1030 states have call successors, (1030), 188 states have call predecessors, (1030), 187 states have return successors, (1056), 1007 states have call predecessors, (1056), 1028 states have call successors, (1056) [2021-11-19 13:36:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3876 states to 3876 states and 5444 transitions. [2021-11-19 13:36:46,060 INFO L78 Accepts]: Start accepts. Automaton has 3876 states and 5444 transitions. Word has length 157 [2021-11-19 13:36:46,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:46,061 INFO L470 AbstractCegarLoop]: Abstraction has 3876 states and 5444 transitions. [2021-11-19 13:36:46,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-19 13:36:46,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3876 states and 5444 transitions. [2021-11-19 13:36:46,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-19 13:36:46,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:46,064 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:46,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:46,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:46,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:46,485 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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 26 more)] === [2021-11-19 13:36:46,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash -947295284, now seen corresponding path program 1 times [2021-11-19 13:36:46,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:46,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645580283] [2021-11-19 13:36:46,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:46,488 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:46,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:46,488 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:46,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 13:36:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:47,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 1532 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:36:47,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:47,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:36:48,599 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:48,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645580283] [2021-11-19 13:36:48,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645580283] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:48,599 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:48,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 13:36:48,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443447183] [2021-11-19 13:36:48,600 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:48,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:36:48,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:48,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:36:48,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:36:48,601 INFO L87 Difference]: Start difference. First operand 3876 states and 5444 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 13:36:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:49,199 INFO L93 Difference]: Finished difference Result 3876 states and 5444 transitions. [2021-11-19 13:36:49,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:36:49,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 144 [2021-11-19 13:36:49,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:49,217 INFO L225 Difference]: With dead ends: 3876 [2021-11-19 13:36:49,217 INFO L226 Difference]: Without dead ends: 3874 [2021-11-19 13:36:49,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:36:49,222 INFO L933 BasicCegarLoop]: 2789 mSDtfsCounter, 2731 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 5576 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:49,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2733 Valid, 5576 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:36:49,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3874 states. [2021-11-19 13:36:49,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3874 to 3874. [2021-11-19 13:36:49,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 2646 states have (on average 1.2683295540438397) internal successors, (3356), 2729 states have internal predecessors, (3356), 1030 states have call successors, (1030), 188 states have call predecessors, (1030), 187 states have return successors, (1056), 1007 states have call predecessors, (1056), 1028 states have call successors, (1056) [2021-11-19 13:36:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 5442 transitions. [2021-11-19 13:36:49,732 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 5442 transitions. Word has length 144 [2021-11-19 13:36:49,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:49,733 INFO L470 AbstractCegarLoop]: Abstraction has 3874 states and 5442 transitions. [2021-11-19 13:36:49,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 13:36:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 5442 transitions. [2021-11-19 13:36:49,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-19 13:36:49,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:49,736 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 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] [2021-11-19 13:36:49,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:49,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:49,959 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:36:49,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:49,959 INFO L85 PathProgramCache]: Analyzing trace with hash 464537895, now seen corresponding path program 1 times [2021-11-19 13:36:49,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:49,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334642496] [2021-11-19 13:36:49,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:49,961 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:49,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:49,962 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:49,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 13:36:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:50,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 13:36:50,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-19 13:36:51,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-19 13:36:53,063 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:36:53,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334642496] [2021-11-19 13:36:53,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334642496] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:36:53,064 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:36:53,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 27 [2021-11-19 13:36:53,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975251245] [2021-11-19 13:36:53,064 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:36:53,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-19 13:36:53,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:36:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-19 13:36:53,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-11-19 13:36:53,066 INFO L87 Difference]: Start difference. First operand 3874 states and 5442 transitions. Second operand has 27 states, 25 states have (on average 3.96) internal successors, (99), 23 states have internal predecessors, (99), 10 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (32), 12 states have call predecessors, (32), 10 states have call successors, (32) [2021-11-19 13:36:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:58,380 INFO L93 Difference]: Finished difference Result 9359 states and 13350 transitions. [2021-11-19 13:36:58,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 13:36:58,381 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.96) internal successors, (99), 23 states have internal predecessors, (99), 10 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (32), 12 states have call predecessors, (32), 10 states have call successors, (32) Word has length 161 [2021-11-19 13:36:58,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:58,402 INFO L225 Difference]: With dead ends: 9359 [2021-11-19 13:36:58,402 INFO L226 Difference]: Without dead ends: 5502 [2021-11-19 13:36:58,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=193, Invalid=1289, Unknown=0, NotChecked=0, Total=1482 [2021-11-19 13:36:58,427 INFO L933 BasicCegarLoop]: 4121 mSDtfsCounter, 4465 mSDsluCounter, 68219 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 1614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4638 SdHoareTripleChecker+Valid, 72340 SdHoareTripleChecker+Invalid, 2956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1614 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:58,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4638 Valid, 72340 Invalid, 2956 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1614 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-19 13:36:58,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2021-11-19 13:36:59,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 3908. [2021-11-19 13:36:59,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3908 states, 2670 states have (on average 1.2659176029962547) internal successors, (3380), 2753 states have internal predecessors, (3380), 1038 states have call successors, (1038), 188 states have call predecessors, (1038), 189 states have return successors, (1068), 1017 states have call predecessors, (1068), 1036 states have call successors, (1068) [2021-11-19 13:36:59,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 5486 transitions. [2021-11-19 13:36:59,043 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 5486 transitions. Word has length 161 [2021-11-19 13:36:59,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:59,044 INFO L470 AbstractCegarLoop]: Abstraction has 3908 states and 5486 transitions. [2021-11-19 13:36:59,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.96) internal successors, (99), 23 states have internal predecessors, (99), 10 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (32), 12 states have call predecessors, (32), 10 states have call successors, (32) [2021-11-19 13:36:59,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 5486 transitions. [2021-11-19 13:36:59,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-19 13:36:59,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:59,047 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 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] [2021-11-19 13:36:59,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:59,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:36:59,263 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:36:59,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:59,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1390329451, now seen corresponding path program 1 times [2021-11-19 13:36:59,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:36:59,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071052602] [2021-11-19 13:36:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:59,266 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:36:59,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:36:59,268 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:36:59,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 13:37:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:00,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 13:37:00,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:01,117 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-19 13:37:01,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-19 13:37:02,573 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:37:02,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071052602] [2021-11-19 13:37:02,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071052602] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:02,573 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:02,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 16] imperfect sequences [] total 29 [2021-11-19 13:37:02,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334388152] [2021-11-19 13:37:02,574 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:02,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-19 13:37:02,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:37:02,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-19 13:37:02,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-11-19 13:37:02,576 INFO L87 Difference]: Start difference. First operand 3908 states and 5486 transitions. Second operand has 29 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 25 states have internal predecessors, (102), 10 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (32), 12 states have call predecessors, (32), 10 states have call successors, (32) [2021-11-19 13:37:12,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:12,999 INFO L93 Difference]: Finished difference Result 10609 states and 15235 transitions. [2021-11-19 13:37:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-19 13:37:13,000 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 25 states have internal predecessors, (102), 10 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (32), 12 states have call predecessors, (32), 10 states have call successors, (32) Word has length 163 [2021-11-19 13:37:13,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:13,025 INFO L225 Difference]: With dead ends: 10609 [2021-11-19 13:37:13,025 INFO L226 Difference]: Without dead ends: 6716 [2021-11-19 13:37:13,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=432, Invalid=2990, Unknown=0, NotChecked=0, Total=3422 [2021-11-19 13:37:13,040 INFO L933 BasicCegarLoop]: 4572 mSDtfsCounter, 7965 mSDsluCounter, 79203 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 3118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8150 SdHoareTripleChecker+Valid, 83775 SdHoareTripleChecker+Invalid, 5761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3118 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:13,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8150 Valid, 83775 Invalid, 5761 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3118 Valid, 2643 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-11-19 13:37:13,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6716 states. [2021-11-19 13:37:13,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6716 to 3910. [2021-11-19 13:37:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 2671 states have (on average 1.2658180456757768) internal successors, (3381), 2755 states have internal predecessors, (3381), 1038 states have call successors, (1038), 188 states have call predecessors, (1038), 190 states have return successors, (1072), 1017 states have call predecessors, (1072), 1036 states have call successors, (1072) [2021-11-19 13:37:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5491 transitions. [2021-11-19 13:37:13,712 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5491 transitions. Word has length 163 [2021-11-19 13:37:13,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:13,713 INFO L470 AbstractCegarLoop]: Abstraction has 3910 states and 5491 transitions. [2021-11-19 13:37:13,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 25 states have internal predecessors, (102), 10 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (32), 12 states have call predecessors, (32), 10 states have call successors, (32) [2021-11-19 13:37:13,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5491 transitions. [2021-11-19 13:37:13,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-19 13:37:13,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:13,716 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:13,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:13,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:37:13,931 INFO L402 AbstractCegarLoop]: === Iteration 22 === 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 26 more)] === [2021-11-19 13:37:13,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:13,931 INFO L85 PathProgramCache]: Analyzing trace with hash -989029678, now seen corresponding path program 1 times [2021-11-19 13:37:13,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:37:13,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140968727] [2021-11-19 13:37:13,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:13,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:37:13,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:37:13,935 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:37:13,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 13:37:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:14,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:37:14,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:37:15,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:37:15,668 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:37:15,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140968727] [2021-11-19 13:37:15,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140968727] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:15,668 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:15,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:37:15,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240482218] [2021-11-19 13:37:15,669 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:15,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:37:15,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:37:15,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:37:15,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:37:15,670 INFO L87 Difference]: Start difference. First operand 3910 states and 5491 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 13:37:16,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:16,053 INFO L93 Difference]: Finished difference Result 3910 states and 5491 transitions. [2021-11-19 13:37:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:37:16,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 150 [2021-11-19 13:37:16,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:16,066 INFO L225 Difference]: With dead ends: 3910 [2021-11-19 13:37:16,066 INFO L226 Difference]: Without dead ends: 3908 [2021-11-19 13:37:16,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:16,069 INFO L933 BasicCegarLoop]: 2787 mSDtfsCounter, 2654 mSDsluCounter, 5570 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2656 SdHoareTripleChecker+Valid, 8357 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:16,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2656 Valid, 8357 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:16,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2021-11-19 13:37:16,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3908. [2021-11-19 13:37:16,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3908 states, 2670 states have (on average 1.2655430711610487) internal successors, (3379), 2753 states have internal predecessors, (3379), 1038 states have call successors, (1038), 188 states have call predecessors, (1038), 190 states have return successors, (1072), 1017 states have call predecessors, (1072), 1036 states have call successors, (1072) [2021-11-19 13:37:16,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 5489 transitions. [2021-11-19 13:37:16,494 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 5489 transitions. Word has length 150 [2021-11-19 13:37:16,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:16,494 INFO L470 AbstractCegarLoop]: Abstraction has 3908 states and 5489 transitions. [2021-11-19 13:37:16,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 13:37:16,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 5489 transitions. [2021-11-19 13:37:16,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 13:37:16,497 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:16,497 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:16,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:16,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:37:16,698 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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 26 more)] === [2021-11-19 13:37:16,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:16,698 INFO L85 PathProgramCache]: Analyzing trace with hash -2094797859, now seen corresponding path program 1 times [2021-11-19 13:37:16,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:37:16,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759639034] [2021-11-19 13:37:16,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:16,701 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:37:16,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:37:16,702 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:37:16,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 13:37:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:17,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1550 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:37:17,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:18,272 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:37:18,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:18,633 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:37:18,634 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:37:18,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759639034] [2021-11-19 13:37:18,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759639034] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:18,634 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:18,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:37:18,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219950989] [2021-11-19 13:37:18,634 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:18,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:37:18,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:37:18,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:37:18,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:37:18,636 INFO L87 Difference]: Start difference. First operand 3908 states and 5489 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 13:37:19,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:19,004 INFO L93 Difference]: Finished difference Result 3908 states and 5489 transitions. [2021-11-19 13:37:19,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:37:19,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 156 [2021-11-19 13:37:19,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:19,015 INFO L225 Difference]: With dead ends: 3908 [2021-11-19 13:37:19,016 INFO L226 Difference]: Without dead ends: 3906 [2021-11-19 13:37:19,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:19,020 INFO L933 BasicCegarLoop]: 2785 mSDtfsCounter, 2646 mSDsluCounter, 5566 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2648 SdHoareTripleChecker+Valid, 8351 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:19,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2648 Valid, 8351 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2021-11-19 13:37:19,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 3906. [2021-11-19 13:37:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3906 states, 2669 states have (on average 1.2652678905957286) internal successors, (3377), 2751 states have internal predecessors, (3377), 1038 states have call successors, (1038), 188 states have call predecessors, (1038), 190 states have return successors, (1072), 1017 states have call predecessors, (1072), 1036 states have call successors, (1072) [2021-11-19 13:37:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3906 states to 3906 states and 5487 transitions. [2021-11-19 13:37:19,499 INFO L78 Accepts]: Start accepts. Automaton has 3906 states and 5487 transitions. Word has length 156 [2021-11-19 13:37:19,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:19,500 INFO L470 AbstractCegarLoop]: Abstraction has 3906 states and 5487 transitions. [2021-11-19 13:37:19,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 13:37:19,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3906 states and 5487 transitions. [2021-11-19 13:37:19,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-19 13:37:19,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:19,508 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:19,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:19,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:37:19,715 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:37:19,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:19,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1272159321, now seen corresponding path program 1 times [2021-11-19 13:37:19,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:37:19,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907124041] [2021-11-19 13:37:19,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:19,717 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:37:19,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:37:19,718 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:37:19,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 13:37:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:20,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:37:20,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 104 proven. 5 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-19 13:37:21,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-19 13:37:22,308 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:37:22,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907124041] [2021-11-19 13:37:22,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907124041] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:37:22,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2063165738] [2021-11-19 13:37:22,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:22,309 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:37:22,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:37:22,309 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:37:22,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2021-11-19 13:37:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:23,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:37:23,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:23,790 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 104 proven. 5 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-19 13:37:23,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-19 13:37:24,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2063165738] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:37:24,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833992214] [2021-11-19 13:37:24,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:24,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:24,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:24,463 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:24,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-19 13:37:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:25,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:37:25,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 99 proven. 10 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-19 13:37:25,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:26,622 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-19 13:37:26,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833992214] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:37:26,622 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:37:26,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 16 [2021-11-19 13:37:26,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525983597] [2021-11-19 13:37:26,622 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:37:26,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 13:37:26,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:37:26,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 13:37:26,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:37:26,624 INFO L87 Difference]: Start difference. First operand 3906 states and 5487 transitions. Second operand has 16 states, 16 states have (on average 6.5625) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (37), 2 states have call predecessors, (37), 6 states have return successors, (40), 12 states have call predecessors, (40), 6 states have call successors, (40) [2021-11-19 13:37:27,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:27,451 INFO L93 Difference]: Finished difference Result 7849 states and 11123 transitions. [2021-11-19 13:37:27,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:37:27,457 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.5625) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (37), 2 states have call predecessors, (37), 6 states have return successors, (40), 12 states have call predecessors, (40), 6 states have call successors, (40) Word has length 204 [2021-11-19 13:37:27,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:27,478 INFO L225 Difference]: With dead ends: 7849 [2021-11-19 13:37:27,479 INFO L226 Difference]: Without dead ends: 3962 [2021-11-19 13:37:27,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1220 GetRequests, 1204 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:37:27,492 INFO L933 BasicCegarLoop]: 2794 mSDtfsCounter, 18 mSDsluCounter, 25119 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 27913 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:27,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 27913 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:37:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2021-11-19 13:37:28,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 3929. [2021-11-19 13:37:28,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3929 states, 2684 states have (on average 1.2637853949329358) internal successors, (3392), 2766 states have internal predecessors, (3392), 1042 states have call successors, (1042), 188 states have call predecessors, (1042), 194 states have return successors, (1098), 1025 states have call predecessors, (1098), 1040 states have call successors, (1098) [2021-11-19 13:37:28,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3929 states to 3929 states and 5532 transitions. [2021-11-19 13:37:28,154 INFO L78 Accepts]: Start accepts. Automaton has 3929 states and 5532 transitions. Word has length 204 [2021-11-19 13:37:28,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:28,155 INFO L470 AbstractCegarLoop]: Abstraction has 3929 states and 5532 transitions. [2021-11-19 13:37:28,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.5625) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (37), 2 states have call predecessors, (37), 6 states have return successors, (40), 12 states have call predecessors, (40), 6 states have call successors, (40) [2021-11-19 13:37:28,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3929 states and 5532 transitions. [2021-11-19 13:37:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-19 13:37:28,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:28,157 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:28,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:28,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:28,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:28,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:28,758 INFO L402 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 26 more)] === [2021-11-19 13:37:28,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:28,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2073878894, now seen corresponding path program 1 times [2021-11-19 13:37:28,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:37:28,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676728865] [2021-11-19 13:37:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:28,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:37:28,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:37:28,761 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:37:28,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 13:37:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:29,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1559 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:37:29,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:37:30,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:30,553 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:37:30,554 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:37:30,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676728865] [2021-11-19 13:37:30,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676728865] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:30,554 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:30,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:37:30,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753737646] [2021-11-19 13:37:30,554 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:30,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:37:30,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:37:30,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:37:30,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:37:30,556 INFO L87 Difference]: Start difference. First operand 3929 states and 5532 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 13:37:30,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:30,978 INFO L93 Difference]: Finished difference Result 3929 states and 5532 transitions. [2021-11-19 13:37:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:37:30,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 162 [2021-11-19 13:37:30,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:30,992 INFO L225 Difference]: With dead ends: 3929 [2021-11-19 13:37:30,992 INFO L226 Difference]: Without dead ends: 3927 [2021-11-19 13:37:30,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:30,995 INFO L933 BasicCegarLoop]: 2783 mSDtfsCounter, 2641 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2643 SdHoareTripleChecker+Valid, 5564 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:30,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2643 Valid, 5564 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3927 states. [2021-11-19 13:37:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3927 to 3927. [2021-11-19 13:37:31,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3927 states, 2683 states have (on average 1.2635109951546777) internal successors, (3390), 2764 states have internal predecessors, (3390), 1042 states have call successors, (1042), 188 states have call predecessors, (1042), 194 states have return successors, (1098), 1025 states have call predecessors, (1098), 1040 states have call successors, (1098) [2021-11-19 13:37:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 5530 transitions. [2021-11-19 13:37:31,470 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 5530 transitions. Word has length 162 [2021-11-19 13:37:31,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:31,470 INFO L470 AbstractCegarLoop]: Abstraction has 3927 states and 5530 transitions. [2021-11-19 13:37:31,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 13:37:31,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 5530 transitions. [2021-11-19 13:37:31,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-19 13:37:31,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:31,473 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:31,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:31,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:37:31,673 INFO L402 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 26 more)] === [2021-11-19 13:37:31,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash -848132808, now seen corresponding path program 1 times [2021-11-19 13:37:31,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:37:31,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680467214] [2021-11-19 13:37:31,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:31,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:37:31,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:37:31,677 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:37:31,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 13:37:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:32,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:37:32,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:37:33,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:37:33,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:37:33,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680467214] [2021-11-19 13:37:33,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1680467214] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:33,571 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:33,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:37:33,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548124739] [2021-11-19 13:37:33,571 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:33,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:37:33,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:37:33,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:37:33,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:37:33,574 INFO L87 Difference]: Start difference. First operand 3927 states and 5530 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 13:37:34,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:34,062 INFO L93 Difference]: Finished difference Result 3927 states and 5530 transitions. [2021-11-19 13:37:34,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:37:34,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 168 [2021-11-19 13:37:34,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:34,074 INFO L225 Difference]: With dead ends: 3927 [2021-11-19 13:37:34,074 INFO L226 Difference]: Without dead ends: 3925 [2021-11-19 13:37:34,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:34,077 INFO L933 BasicCegarLoop]: 2781 mSDtfsCounter, 2633 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2635 SdHoareTripleChecker+Valid, 5560 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:34,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2635 Valid, 5560 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:34,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3925 states. [2021-11-19 13:37:34,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3925 to 3925. [2021-11-19 13:37:34,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3925 states, 2682 states have (on average 1.2632363907531692) internal successors, (3388), 2762 states have internal predecessors, (3388), 1042 states have call successors, (1042), 188 states have call predecessors, (1042), 194 states have return successors, (1098), 1025 states have call predecessors, (1098), 1040 states have call successors, (1098) [2021-11-19 13:37:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3925 states to 3925 states and 5528 transitions. [2021-11-19 13:37:34,645 INFO L78 Accepts]: Start accepts. Automaton has 3925 states and 5528 transitions. Word has length 168 [2021-11-19 13:37:34,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:34,645 INFO L470 AbstractCegarLoop]: Abstraction has 3925 states and 5528 transitions. [2021-11-19 13:37:34,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 13:37:34,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3925 states and 5528 transitions. [2021-11-19 13:37:34,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-19 13:37:34,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:34,648 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:34,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:34,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:37:34,848 INFO L402 AbstractCegarLoop]: === Iteration 27 === 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 26 more)] === [2021-11-19 13:37:34,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:34,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1428515546, now seen corresponding path program 1 times [2021-11-19 13:37:34,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:37:34,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522227680] [2021-11-19 13:37:34,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:34,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:37:34,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:37:34,851 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:37:34,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 13:37:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:35,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1577 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:37:35,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:37:36,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:36,719 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:37:36,719 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:37:36,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522227680] [2021-11-19 13:37:36,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522227680] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:36,719 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:36,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:37:36,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886944805] [2021-11-19 13:37:36,720 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:36,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:37:36,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:37:36,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:37:36,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:37:36,721 INFO L87 Difference]: Start difference. First operand 3925 states and 5528 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 13:37:37,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:37,214 INFO L93 Difference]: Finished difference Result 3925 states and 5528 transitions. [2021-11-19 13:37:37,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:37:37,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 174 [2021-11-19 13:37:37,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:37,231 INFO L225 Difference]: With dead ends: 3925 [2021-11-19 13:37:37,231 INFO L226 Difference]: Without dead ends: 3923 [2021-11-19 13:37:37,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:37,233 INFO L933 BasicCegarLoop]: 2779 mSDtfsCounter, 2625 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2627 SdHoareTripleChecker+Valid, 5556 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:37,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2627 Valid, 5556 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:37,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2021-11-19 13:37:37,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 3923. [2021-11-19 13:37:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3923 states, 2681 states have (on average 1.2629615814994406) internal successors, (3386), 2760 states have internal predecessors, (3386), 1042 states have call successors, (1042), 188 states have call predecessors, (1042), 194 states have return successors, (1098), 1025 states have call predecessors, (1098), 1040 states have call successors, (1098) [2021-11-19 13:37:37,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 5526 transitions. [2021-11-19 13:37:37,737 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 5526 transitions. Word has length 174 [2021-11-19 13:37:37,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:37,738 INFO L470 AbstractCegarLoop]: Abstraction has 3923 states and 5526 transitions. [2021-11-19 13:37:37,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 13:37:37,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 5526 transitions. [2021-11-19 13:37:37,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-19 13:37:37,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:37,741 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:37,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:37,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:37:37,941 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:37:37,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:37,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1196032297, now seen corresponding path program 1 times [2021-11-19 13:37:37,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:37:37,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263431305] [2021-11-19 13:37:37,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:37,944 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:37:37,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:37:37,944 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:37:37,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 13:37:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:39,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:37:39,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-19 13:37:39,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-19 13:37:40,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:37:40,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263431305] [2021-11-19 13:37:40,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263431305] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:40,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:37:40,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-19 13:37:40,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921473178] [2021-11-19 13:37:40,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:40,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:37:40,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:37:40,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:37:40,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:37:40,472 INFO L87 Difference]: Start difference. First operand 3923 states and 5526 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:37:40,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:40,970 INFO L93 Difference]: Finished difference Result 7844 states and 11125 transitions. [2021-11-19 13:37:40,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:37:40,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 236 [2021-11-19 13:37:40,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:40,985 INFO L225 Difference]: With dead ends: 7844 [2021-11-19 13:37:40,985 INFO L226 Difference]: Without dead ends: 3940 [2021-11-19 13:37:40,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:37:40,996 INFO L933 BasicCegarLoop]: 2784 mSDtfsCounter, 3 mSDsluCounter, 13914 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16698 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:40,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 16698 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:37:41,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3940 states. [2021-11-19 13:37:41,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3940 to 3923. [2021-11-19 13:37:41,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3923 states, 2681 states have (on average 1.2629615814994406) internal successors, (3386), 2760 states have internal predecessors, (3386), 1042 states have call successors, (1042), 188 states have call predecessors, (1042), 194 states have return successors, (1098), 1025 states have call predecessors, (1098), 1040 states have call successors, (1098) [2021-11-19 13:37:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 5526 transitions. [2021-11-19 13:37:41,483 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 5526 transitions. Word has length 236 [2021-11-19 13:37:41,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:41,483 INFO L470 AbstractCegarLoop]: Abstraction has 3923 states and 5526 transitions. [2021-11-19 13:37:41,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:37:41,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 5526 transitions. [2021-11-19 13:37:41,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-19 13:37:41,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:41,486 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:41,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:41,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:37:41,687 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:37:41,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:41,687 INFO L85 PathProgramCache]: Analyzing trace with hash 785508719, now seen corresponding path program 2 times [2021-11-19 13:37:41,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:37:41,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519922166] [2021-11-19 13:37:41,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:37:41,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:37:41,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:37:41,690 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:37:41,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-19 13:37:57,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:37:57,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:37:57,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:37:57,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:57,773 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2021-11-19 13:37:57,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-19 13:37:58,775 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:37:58,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519922166] [2021-11-19 13:37:58,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519922166] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:58,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:37:58,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-19 13:37:58,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559917822] [2021-11-19 13:37:58,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:58,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:37:58,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:37:58,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:37:58,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:37:58,778 INFO L87 Difference]: Start difference. First operand 3923 states and 5526 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:37:59,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:59,262 INFO L93 Difference]: Finished difference Result 7843 states and 11125 transitions. [2021-11-19 13:37:59,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:37:59,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 252 [2021-11-19 13:37:59,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:59,282 INFO L225 Difference]: With dead ends: 7843 [2021-11-19 13:37:59,282 INFO L226 Difference]: Without dead ends: 3939 [2021-11-19 13:37:59,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:37:59,298 INFO L933 BasicCegarLoop]: 2782 mSDtfsCounter, 3 mSDsluCounter, 13904 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16686 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:59,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 16686 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:59,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states. [2021-11-19 13:37:59,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 3933. [2021-11-19 13:37:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3933 states, 2689 states have (on average 1.2621792487913723) internal successors, (3394), 2766 states have internal predecessors, (3394), 1042 states have call successors, (1042), 188 states have call predecessors, (1042), 196 states have return successors, (1102), 1029 states have call predecessors, (1102), 1040 states have call successors, (1102) [2021-11-19 13:37:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 5538 transitions. [2021-11-19 13:37:59,850 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 5538 transitions. Word has length 252 [2021-11-19 13:37:59,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:59,851 INFO L470 AbstractCegarLoop]: Abstraction has 3933 states and 5538 transitions. [2021-11-19 13:37:59,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:37:59,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 5538 transitions. [2021-11-19 13:37:59,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-19 13:37:59,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:59,855 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:59,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:00,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:38:00,071 INFO L402 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 26 more)] === [2021-11-19 13:38:00,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:00,071 INFO L85 PathProgramCache]: Analyzing trace with hash -341467259, now seen corresponding path program 1 times [2021-11-19 13:38:00,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:38:00,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428433568] [2021-11-19 13:38:00,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:00,074 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:38:00,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:38:00,075 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:38:00,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 13:38:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:00,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1586 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:38:00,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:01,596 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:38:01,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:01,998 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:38:01,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:38:01,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428433568] [2021-11-19 13:38:01,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428433568] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:38:01,998 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:38:01,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:38:01,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082976221] [2021-11-19 13:38:01,999 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:38:01,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:38:01,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:38:01,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:38:01,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:38:02,000 INFO L87 Difference]: Start difference. First operand 3933 states and 5538 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 13:38:02,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:02,453 INFO L93 Difference]: Finished difference Result 3933 states and 5538 transitions. [2021-11-19 13:38:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:38:02,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 180 [2021-11-19 13:38:02,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:02,463 INFO L225 Difference]: With dead ends: 3933 [2021-11-19 13:38:02,463 INFO L226 Difference]: Without dead ends: 3704 [2021-11-19 13:38:02,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:38:02,467 INFO L933 BasicCegarLoop]: 2778 mSDtfsCounter, 2613 mSDsluCounter, 5556 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2613 SdHoareTripleChecker+Valid, 8334 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:02,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2613 Valid, 8334 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:38:02,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2021-11-19 13:38:02,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3704. [2021-11-19 13:38:02,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 2551 states have (on average 1.2724421795374363) internal successors, (3246), 2621 states have internal predecessors, (3246), 973 states have call successors, (973), 167 states have call predecessors, (973), 175 states have return successors, (1033), 964 states have call predecessors, (1033), 971 states have call successors, (1033) [2021-11-19 13:38:02,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 5252 transitions. [2021-11-19 13:38:02,949 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 5252 transitions. Word has length 180 [2021-11-19 13:38:02,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:02,949 INFO L470 AbstractCegarLoop]: Abstraction has 3704 states and 5252 transitions. [2021-11-19 13:38:02,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 13:38:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 5252 transitions. [2021-11-19 13:38:02,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-11-19 13:38:02,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:02,953 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2021-11-19 13:38:02,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:03,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:38:03,167 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:38:03,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:03,167 INFO L85 PathProgramCache]: Analyzing trace with hash 445734511, now seen corresponding path program 3 times [2021-11-19 13:38:03,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:38:03,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467315617] [2021-11-19 13:38:03,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:38:03,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:38:03,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:38:03,170 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:38:03,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-19 13:38:28,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-19 13:38:28,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:38:28,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 1405 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-19 13:38:28,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:30,108 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2021-11-19 13:38:30,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:33,623 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2021-11-19 13:38:33,623 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:38:33,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467315617] [2021-11-19 13:38:33,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467315617] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:38:33,623 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:38:33,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 12] imperfect sequences [] total 24 [2021-11-19 13:38:33,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669079955] [2021-11-19 13:38:33,624 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:38:33,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-19 13:38:33,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:38:33,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-19 13:38:33,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-11-19 13:38:33,625 INFO L87 Difference]: Start difference. First operand 3704 states and 5252 transitions. Second operand has 24 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (35), 10 states have call predecessors, (35), 6 states have call successors, (35) [2021-11-19 13:38:36,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:36,312 INFO L93 Difference]: Finished difference Result 5713 states and 8142 transitions. [2021-11-19 13:38:36,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 13:38:36,313 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (35), 10 states have call predecessors, (35), 6 states have call successors, (35) Word has length 284 [2021-11-19 13:38:36,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:36,331 INFO L225 Difference]: With dead ends: 5713 [2021-11-19 13:38:36,331 INFO L226 Difference]: Without dead ends: 3806 [2021-11-19 13:38:36,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2021-11-19 13:38:36,341 INFO L933 BasicCegarLoop]: 2668 mSDtfsCounter, 100 mSDsluCounter, 39783 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 42451 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:36,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 42451 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-19 13:38:36,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2021-11-19 13:38:36,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3708. [2021-11-19 13:38:36,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3708 states, 2555 states have (on average 1.2720156555772995) internal successors, (3250), 2623 states have internal predecessors, (3250), 973 states have call successors, (973), 167 states have call predecessors, (973), 175 states have return successors, (1033), 966 states have call predecessors, (1033), 971 states have call successors, (1033) [2021-11-19 13:38:36,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3708 states to 3708 states and 5256 transitions. [2021-11-19 13:38:36,977 INFO L78 Accepts]: Start accepts. Automaton has 3708 states and 5256 transitions. Word has length 284 [2021-11-19 13:38:36,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:36,977 INFO L470 AbstractCegarLoop]: Abstraction has 3708 states and 5256 transitions. [2021-11-19 13:38:36,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (33), 2 states have call predecessors, (33), 7 states have return successors, (35), 10 states have call predecessors, (35), 6 states have call successors, (35) [2021-11-19 13:38:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3708 states and 5256 transitions. [2021-11-19 13:38:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-19 13:38:36,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:36,981 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-11-19 13:38:37,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2021-11-19 13:38:37,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:38:37,195 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:38:37,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:37,195 INFO L85 PathProgramCache]: Analyzing trace with hash -256506873, now seen corresponding path program 4 times [2021-11-19 13:38:37,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:38:37,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301963341] [2021-11-19 13:38:37,197 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:38:37,197 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:38:37,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:38:37,198 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:38:37,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-19 13:38:38,327 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:38:38,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:38:38,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 1956 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:38:38,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-11-19 13:38:39,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:40,496 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2021-11-19 13:38:40,496 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:38:40,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301963341] [2021-11-19 13:38:40,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301963341] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:38:40,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:38:40,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2021-11-19 13:38:40,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566007521] [2021-11-19 13:38:40,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:38:40,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:38:40,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:38:40,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:38:40,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:38:40,498 INFO L87 Difference]: Start difference. First operand 3708 states and 5256 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:38:41,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:41,139 INFO L93 Difference]: Finished difference Result 7423 states and 10601 transitions. [2021-11-19 13:38:41,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:38:41,141 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 268 [2021-11-19 13:38:41,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:41,154 INFO L225 Difference]: With dead ends: 7423 [2021-11-19 13:38:41,154 INFO L226 Difference]: Without dead ends: 3734 [2021-11-19 13:38:41,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:38:41,166 INFO L933 BasicCegarLoop]: 2625 mSDtfsCounter, 10 mSDsluCounter, 18362 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 20987 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:41,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 20987 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:38:41,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2021-11-19 13:38:41,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3725. [2021-11-19 13:38:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3725 states, 2569 states have (on average 1.270533281432464) internal successors, (3264), 2635 states have internal predecessors, (3264), 974 states have call successors, (974), 167 states have call predecessors, (974), 177 states have return successors, (1038), 971 states have call predecessors, (1038), 972 states have call successors, (1038) [2021-11-19 13:38:41,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3725 states to 3725 states and 5276 transitions. [2021-11-19 13:38:41,626 INFO L78 Accepts]: Start accepts. Automaton has 3725 states and 5276 transitions. Word has length 268 [2021-11-19 13:38:41,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:41,627 INFO L470 AbstractCegarLoop]: Abstraction has 3725 states and 5276 transitions. [2021-11-19 13:38:41,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:38:41,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3725 states and 5276 transitions. [2021-11-19 13:38:41,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-11-19 13:38:41,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:41,629 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2021-11-19 13:38:41,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:41,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:38:41,851 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:38:41,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash 793583263, now seen corresponding path program 5 times [2021-11-19 13:38:41,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:38:41,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370664921] [2021-11-19 13:38:41,853 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-19 13:38:41,853 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:38:41,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:38:41,854 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:38:41,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-19 13:38:43,181 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-11-19 13:38:43,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:38:43,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 13:38:43,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:43,922 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2021-11-19 13:38:43,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2021-11-19 13:38:44,658 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:38:44,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370664921] [2021-11-19 13:38:44,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370664921] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:38:44,658 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:38:44,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 13:38:44,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692231681] [2021-11-19 13:38:44,658 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:38:44,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:38:44,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:38:44,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:38:44,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:38:44,660 INFO L87 Difference]: Start difference. First operand 3725 states and 5276 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-19 13:38:45,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:45,248 INFO L93 Difference]: Finished difference Result 7186 states and 10180 transitions. [2021-11-19 13:38:45,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:38:45,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 284 [2021-11-19 13:38:45,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:45,261 INFO L225 Difference]: With dead ends: 7186 [2021-11-19 13:38:45,261 INFO L226 Difference]: Without dead ends: 3480 [2021-11-19 13:38:45,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:38:45,275 INFO L933 BasicCegarLoop]: 2627 mSDtfsCounter, 7 mSDsluCounter, 10498 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13125 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:45,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 13125 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:38:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2021-11-19 13:38:45,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3463. [2021-11-19 13:38:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 2373 states have (on average 1.270543615676359) internal successors, (3015), 2435 states have internal predecessors, (3015), 916 states have call successors, (916), 160 states have call predecessors, (916), 169 states have return successors, (948), 914 states have call predecessors, (948), 914 states have call successors, (948) [2021-11-19 13:38:45,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 4879 transitions. [2021-11-19 13:38:45,692 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 4879 transitions. Word has length 284 [2021-11-19 13:38:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:45,692 INFO L470 AbstractCegarLoop]: Abstraction has 3463 states and 4879 transitions. [2021-11-19 13:38:45,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-19 13:38:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 4879 transitions. [2021-11-19 13:38:45,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-11-19 13:38:45,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:45,696 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2021-11-19 13:38:45,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:45,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:38:45,924 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:38:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:45,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1303056353, now seen corresponding path program 1 times [2021-11-19 13:38:45,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:38:45,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970738807] [2021-11-19 13:38:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:45,927 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:38:45,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:38:45,928 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:38:45,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 13:38:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:47,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 1989 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:38:47,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 9 proven. 239 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2021-11-19 13:38:48,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2021-11-19 13:38:49,376 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:38:49,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970738807] [2021-11-19 13:38:49,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970738807] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:38:49,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:38:49,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-19 13:38:49,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947389085] [2021-11-19 13:38:49,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:38:49,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:38:49,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:38:49,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:38:49,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:38:49,379 INFO L87 Difference]: Start difference. First operand 3463 states and 4879 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-19 13:38:51,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:38:53,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:38:58,986 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:39:04,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:39:20,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:39:27,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:39:28,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:39:35,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:39:37,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:39:46,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:39:56,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:39:58,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:40:00,575 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:40:07,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:40:16,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:40:18,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:40:20,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:40:32,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:32,920 INFO L93 Difference]: Finished difference Result 7049 states and 10008 transitions. [2021-11-19 13:40:32,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:40:32,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 284 [2021-11-19 13:40:32,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:32,942 INFO L225 Difference]: With dead ends: 7049 [2021-11-19 13:40:32,942 INFO L226 Difference]: Without dead ends: 7047 [2021-11-19 13:40:32,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:40:32,946 INFO L933 BasicCegarLoop]: 4667 mSDtfsCounter, 7191 mSDsluCounter, 7211 mSDsCounter, 0 mSdLazyCounter, 8586 mSolverCounterSat, 2799 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7648 SdHoareTripleChecker+Valid, 11878 SdHoareTripleChecker+Invalid, 11398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2799 IncrementalHoareTripleChecker+Valid, 8586 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:32,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7648 Valid, 11878 Invalid, 11398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2799 Valid, 8586 Invalid, 13 Unknown, 0 Unchecked, 101.8s Time] [2021-11-19 13:40:32,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7047 states. [2021-11-19 13:40:33,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7047 to 6955. [2021-11-19 13:40:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 4757 states have (on average 1.2713895312171537) internal successors, (6048), 4887 states have internal predecessors, (6048), 1851 states have call successors, (1851), 320 states have call predecessors, (1851), 342 states have return successors, (1971), 1842 states have call predecessors, (1971), 1849 states have call successors, (1971) [2021-11-19 13:40:33,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 9870 transitions. [2021-11-19 13:40:33,839 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 9870 transitions. Word has length 284 [2021-11-19 13:40:33,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:33,840 INFO L470 AbstractCegarLoop]: Abstraction has 6955 states and 9870 transitions. [2021-11-19 13:40:33,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-19 13:40:33,840 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 9870 transitions. [2021-11-19 13:40:33,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-19 13:40:33,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:33,844 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:40:33,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2021-11-19 13:40:34,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:40:34,059 INFO L402 AbstractCegarLoop]: === Iteration 35 === 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 26 more)] === [2021-11-19 13:40:34,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:34,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1840048367, now seen corresponding path program 1 times [2021-11-19 13:40:34,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:34,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104123233] [2021-11-19 13:40:34,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:34,062 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:34,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:34,074 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:34,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-19 13:40:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:35,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 2086 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 13:40:35,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 165 proven. 3 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-19 13:40:36,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-19 13:40:38,020 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:38,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104123233] [2021-11-19 13:40:38,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104123233] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:40:38,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1255070031] [2021-11-19 13:40:38,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:38,021 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:40:38,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:40:38,023 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:40:38,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2021-11-19 13:40:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:43,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2086 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:40:43,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2021-11-19 13:40:44,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:45,777 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2021-11-19 13:40:45,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1255070031] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:40:45,778 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:40:45,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [17, 17] total 25 [2021-11-19 13:40:45,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942258988] [2021-11-19 13:40:45,779 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:40:45,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:40:45,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:40:45,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:40:45,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2021-11-19 13:40:45,780 INFO L87 Difference]: Start difference. First operand 6955 states and 9870 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 13:40:47,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:40:49,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:49,056 INFO L93 Difference]: Finished difference Result 6955 states and 9870 transitions. [2021-11-19 13:40:49,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:40:49,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 317 [2021-11-19 13:40:49,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:49,093 INFO L225 Difference]: With dead ends: 6955 [2021-11-19 13:40:49,093 INFO L226 Difference]: Without dead ends: 6953 [2021-11-19 13:40:49,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1266 GetRequests, 1241 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2021-11-19 13:40:49,100 INFO L933 BasicCegarLoop]: 2649 mSDtfsCounter, 1268 mSDsluCounter, 9259 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 11908 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:49,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1269 Valid, 11908 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 13:40:49,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6953 states. [2021-11-19 13:40:50,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6953 to 6953. [2021-11-19 13:40:50,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6953 states, 4756 states have (on average 1.2706055508830951) internal successors, (6043), 4885 states have internal predecessors, (6043), 1851 states have call successors, (1851), 320 states have call predecessors, (1851), 342 states have return successors, (1971), 1842 states have call predecessors, (1971), 1849 states have call successors, (1971) [2021-11-19 13:40:50,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6953 states to 6953 states and 9865 transitions. [2021-11-19 13:40:50,075 INFO L78 Accepts]: Start accepts. Automaton has 6953 states and 9865 transitions. Word has length 317 [2021-11-19 13:40:50,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:50,075 INFO L470 AbstractCegarLoop]: Abstraction has 6953 states and 9865 transitions. [2021-11-19 13:40:50,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 13:40:50,076 INFO L276 IsEmpty]: Start isEmpty. Operand 6953 states and 9865 transitions. [2021-11-19 13:40:50,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-19 13:40:50,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:50,079 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:40:50,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:50,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:50,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:40:50,479 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:40:50,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:50,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1916710551, now seen corresponding path program 1 times [2021-11-19 13:40:50,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:50,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462370502] [2021-11-19 13:40:50,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:50,482 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:50,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:50,483 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:50,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-19 13:40:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:51,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:40:51,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-19 13:40:52,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:53,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-11-19 13:40:53,792 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:53,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462370502] [2021-11-19 13:40:53,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462370502] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:40:53,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:40:53,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-19 13:40:53,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359141894] [2021-11-19 13:40:53,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:40:53,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:40:53,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:40:53,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:40:53,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:40:53,794 INFO L87 Difference]: Start difference. First operand 6953 states and 9865 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 4 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-19 13:40:54,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:54,780 INFO L93 Difference]: Finished difference Result 12385 states and 17639 transitions. [2021-11-19 13:40:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:40:54,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 4 states have call predecessors, (35), 2 states have call successors, (35) Word has length 330 [2021-11-19 13:40:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:54,810 INFO L225 Difference]: With dead ends: 12385 [2021-11-19 13:40:54,811 INFO L226 Difference]: Without dead ends: 6971 [2021-11-19 13:40:54,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:40:54,827 INFO L933 BasicCegarLoop]: 2629 mSDtfsCounter, 7 mSDsluCounter, 13135 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15764 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:54,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 15764 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:40:54,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2021-11-19 13:40:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 6956. [2021-11-19 13:40:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 4758 states have (on average 1.2700714585960489) internal successors, (6043), 4887 states have internal predecessors, (6043), 1852 states have call successors, (1852), 320 states have call predecessors, (1852), 342 states have return successors, (1972), 1843 states have call predecessors, (1972), 1850 states have call successors, (1972) [2021-11-19 13:40:55,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 9867 transitions. [2021-11-19 13:40:55,830 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 9867 transitions. Word has length 330 [2021-11-19 13:40:55,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:55,831 INFO L470 AbstractCegarLoop]: Abstraction has 6956 states and 9867 transitions. [2021-11-19 13:40:55,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 4 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-19 13:40:55,831 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 9867 transitions. [2021-11-19 13:40:55,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-19 13:40:55,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:55,835 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:40:55,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:56,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:40:56,059 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:40:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:56,059 INFO L85 PathProgramCache]: Analyzing trace with hash 2133335807, now seen corresponding path program 1 times [2021-11-19 13:40:56,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:56,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138291055] [2021-11-19 13:40:56,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:56,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:56,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:56,062 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:56,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-19 13:40:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:57,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 13:40:57,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1245 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2021-11-19 13:40:58,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:00,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1245 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2021-11-19 13:41:00,361 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:00,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138291055] [2021-11-19 13:41:00,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138291055] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:00,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1230506907] [2021-11-19 13:41:00,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:00,362 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:41:00,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:41:00,363 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:41:00,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2021-11-19 13:41:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:01,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:41:01,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:02,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1245 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2021-11-19 13:41:02,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1245 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2021-11-19 13:41:03,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1230506907] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:03,379 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:41:03,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [12, 12] total 13 [2021-11-19 13:41:03,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372669192] [2021-11-19 13:41:03,380 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:03,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:41:03,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:03,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:41:03,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:41:03,382 INFO L87 Difference]: Start difference. First operand 6956 states and 9867 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 13:41:04,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:04,512 INFO L93 Difference]: Finished difference Result 8903 states and 12674 transitions. [2021-11-19 13:41:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:41:04,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 346 [2021-11-19 13:41:04,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:04,548 INFO L225 Difference]: With dead ends: 8903 [2021-11-19 13:41:04,548 INFO L226 Difference]: Without dead ends: 6970 [2021-11-19 13:41:04,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1381 GetRequests, 1369 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:41:04,560 INFO L933 BasicCegarLoop]: 2640 mSDtfsCounter, 40 mSDsluCounter, 10501 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 13141 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:04,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 13141 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:41:04,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6970 states. [2021-11-19 13:41:05,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6970 to 6961. [2021-11-19 13:41:05,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6961 states, 4762 states have (on average 1.2698446031079378) internal successors, (6047), 4890 states have internal predecessors, (6047), 1853 states have call successors, (1853), 320 states have call predecessors, (1853), 342 states have return successors, (1973), 1845 states have call predecessors, (1973), 1851 states have call successors, (1973) [2021-11-19 13:41:05,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6961 states to 6961 states and 9873 transitions. [2021-11-19 13:41:05,448 INFO L78 Accepts]: Start accepts. Automaton has 6961 states and 9873 transitions. Word has length 346 [2021-11-19 13:41:05,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:05,449 INFO L470 AbstractCegarLoop]: Abstraction has 6961 states and 9873 transitions. [2021-11-19 13:41:05,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 13:41:05,449 INFO L276 IsEmpty]: Start isEmpty. Operand 6961 states and 9873 transitions. [2021-11-19 13:41:05,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-19 13:41:05,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:05,452 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 10, 10, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:05,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:05,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:05,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:05,853 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 13:41:05,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:05,853 INFO L85 PathProgramCache]: Analyzing trace with hash -264773779, now seen corresponding path program 1 times [2021-11-19 13:41:05,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:05,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964578565] [2021-11-19 13:41:05,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:05,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:05,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:05,859 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:05,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-19 13:41:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:07,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 2162 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 13:41:07,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:08,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 51 proven. 668 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-11-19 13:41:08,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:10,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1307 trivial. 0 not checked. [2021-11-19 13:41:10,597 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:10,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964578565] [2021-11-19 13:41:10,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964578565] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:10,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1891371772] [2021-11-19 13:41:10,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:10,597 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:41:10,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:41:10,599 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:41:10,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2021-11-19 13:41:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:16,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 2162 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 13:41:16,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 51 proven. 668 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-11-19 13:41:17,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1307 trivial. 0 not checked. [2021-11-19 13:41:18,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1891371772] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:18,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155465019] [2021-11-19 13:41:18,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:18,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:18,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:41:18,980 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:41:19,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a5ce22-4b39-4ef3-95e8-a63aeb0154f1/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-11-19 13:41:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:20,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 2162 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 13:41:20,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 51 proven. 707 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2021-11-19 13:41:21,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1307 trivial. 0 not checked. [2021-11-19 13:41:22,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155465019] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:22,927 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:41:22,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8, 10, 10, 10] total 18 [2021-11-19 13:41:22,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230047904] [2021-11-19 13:41:22,928 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:41:22,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 13:41:22,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:22,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 13:41:22,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:41:22,931 INFO L87 Difference]: Start difference. First operand 6961 states and 9873 transitions. Second operand has 18 states, 18 states have (on average 10.666666666666666) internal successors, (192), 18 states have internal predecessors, (192), 10 states have call successors, (69), 9 states have call predecessors, (69), 8 states have return successors, (66), 10 states have call predecessors, (66), 10 states have call successors, (66) [2021-11-19 13:41:25,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:27,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:39,180 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:41,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:43,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:45,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:47,062 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:11,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:13,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:15,218 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:17,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:19,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:28,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:31,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:16,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:22,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:24,662 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:26,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:28,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:29,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:18,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:20,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:21,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:23,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:25,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:38,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:39,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:41,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:42,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:44,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:47,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:49,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:51,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:45:23,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:45:25,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:45:27,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:45:29,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:45:31,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:45:33,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:05,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:07,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:08,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:21,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:23,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:25,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:37,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:40,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:49,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:51,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:53,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:54,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:57,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:59,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:01,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:03,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:05,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:07,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:13,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:20,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:21,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:23,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:25,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:35,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:44,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:46,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:48,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []