./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--video--fbdev--udlfb.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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/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 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:04:26,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:04:26,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:04:26,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:04:26,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:04:26,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:04:26,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:04:26,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:04:26,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:04:26,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:04:26,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:04:26,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:04:26,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:04:26,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:04:26,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:04:26,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:04:26,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:04:26,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:04:26,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:04:26,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:04:26,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:04:26,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:04:26,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:04:26,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:04:26,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:04:26,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:04:26,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:04:26,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:04:26,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:04:26,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:04:26,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:04:26,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:04:26,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:04:26,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:04:26,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:04:26,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:04:26,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:04:26,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:04:26,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:04:26,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:04:26,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:04:26,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:04:26,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:04:26,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:04:26,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:04:26,292 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:04:26,292 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:04:26,293 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:04:26,293 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:04:26,293 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:04:26,301 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:04:26,302 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:04:26,303 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:04:26,303 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:04:26,304 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:04:26,304 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:04:26,304 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:04:26,305 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:04:26,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:04:26,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:04:26,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:04:26,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:04:26,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:04:26,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:04:26,307 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:04:26,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:04:26,308 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:04:26,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:04:26,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:04:26,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:04:26,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:04:26,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:04:26,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:04:26,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:04:26,312 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:04:26,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:04:26,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:04:26,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:04:26,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:04:26,314 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb [2021-11-19 15:04:26,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:04:26,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:04:26,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:04:26,729 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:04:26,730 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:04:26,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2021-11-19 15:04:26,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/data/6b961a8e3/827bfcc3836f46048b4e3e3b8112ee64/FLAG1ded76e56 [2021-11-19 15:04:28,041 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:04:28,042 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2021-11-19 15:04:28,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/data/6b961a8e3/827bfcc3836f46048b4e3e3b8112ee64/FLAG1ded76e56 [2021-11-19 15:04:28,246 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/data/6b961a8e3/827bfcc3836f46048b4e3e3b8112ee64 [2021-11-19 15:04:28,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:04:28,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:04:28,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:04:28,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:04:28,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:04:28,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:28" (1/1) ... [2021-11-19 15:04:28,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec099bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:28, skipping insertion in model container [2021-11-19 15:04:28,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:28" (1/1) ... [2021-11-19 15:04:28,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:04:28,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:04:30,912 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 15:04:30,913 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 15:04:30,930 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 15:04:30,949 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 15:04:30,975 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 15:04:30,984 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 15:04:30,991 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 15:04:30,999 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 15:04:31,007 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 15:04:31,031 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 15:04:31,043 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 15:04:31,045 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 15:04:31,052 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 15:04:31,054 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 15:04:31,062 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 15:04:31,091 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 15:04:31,100 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 15:04:31,122 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 15:04:31,124 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 15:04:31,140 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 15:04:31,222 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 15:04:31,223 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 15:04:31,233 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 15:04:31,234 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 15:04:31,241 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 15:04:31,242 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 15:04:31,249 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 15:04:31,250 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 15:04:31,258 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 15:04:31,261 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 15:04:31,277 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 15:04:31,277 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 15:04:31,287 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 15:04:31,288 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 15:04:31,335 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 15:04:31,342 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 15:04:31,356 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 15:04:31,378 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 15:04:31,395 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 15:04:31,402 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 15:04:31,776 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 15:04:31,778 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 15:04:31,779 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 15:04:31,780 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 15:04:31,781 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 15:04:31,781 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 15:04:31,782 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 15:04:31,783 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 15:04:31,783 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 15:04:31,817 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 15:04:31,819 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 15:04:31,821 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 15:04:31,824 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 15:04:31,826 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 15:04:31,830 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 15:04:31,831 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 15:04:31,831 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 15:04:31,832 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 15:04:32,146 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 15:04:32,154 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 15:04:32,773 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 15:04:32,774 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 15:04:33,603 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2021-11-19 15:04:33,607 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2021-11-19 15:04:33,608 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2021-11-19 15:04:33,609 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2021-11-19 15:04:33,610 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2021-11-19 15:04:33,611 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2021-11-19 15:04:33,611 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2021-11-19 15:04:33,612 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2021-11-19 15:04:33,613 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2021-11-19 15:04:33,613 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2021-11-19 15:04:33,614 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2021-11-19 15:04:33,615 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2021-11-19 15:04:33,615 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2021-11-19 15:04:33,616 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2021-11-19 15:04:33,617 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2021-11-19 15:04:33,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2021-11-19 15:04:33,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2021-11-19 15:04:33,619 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2021-11-19 15:04:33,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2021-11-19 15:04:33,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2021-11-19 15:04:33,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2021-11-19 15:04:33,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2021-11-19 15:04:33,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2021-11-19 15:04:33,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2021-11-19 15:04:33,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2021-11-19 15:04:33,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2021-11-19 15:04:33,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2021-11-19 15:04:33,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2021-11-19 15:04:33,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2021-11-19 15:04:33,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2021-11-19 15:04:33,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2021-11-19 15:04:33,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2021-11-19 15:04:33,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2021-11-19 15:04:33,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2021-11-19 15:04:33,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2021-11-19 15:04:33,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2021-11-19 15:04:33,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2021-11-19 15:04:33,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2021-11-19 15:04:33,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2021-11-19 15:04:33,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2021-11-19 15:04:33,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2021-11-19 15:04:33,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2021-11-19 15:04:33,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2021-11-19 15:04:33,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2021-11-19 15:04:33,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2021-11-19 15:04:33,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2021-11-19 15:04:33,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2021-11-19 15:04:33,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2021-11-19 15:04:33,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2021-11-19 15:04:33,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2021-11-19 15:04:33,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2021-11-19 15:04:33,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2021-11-19 15:04:33,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2021-11-19 15:04:33,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2021-11-19 15:04:33,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2021-11-19 15:04:33,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2021-11-19 15:04:33,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2021-11-19 15:04:33,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2021-11-19 15:04:33,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2021-11-19 15:04:33,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2021-11-19 15:04:33,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2021-11-19 15:04:33,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2021-11-19 15:04:33,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2021-11-19 15:04:33,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2021-11-19 15:04:33,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2021-11-19 15:04:33,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2021-11-19 15:04:33,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2021-11-19 15:04:33,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2021-11-19 15:04:33,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2021-11-19 15:04:33,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2021-11-19 15:04:33,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2021-11-19 15:04:33,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2021-11-19 15:04:33,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2021-11-19 15:04:33,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2021-11-19 15:04:33,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2021-11-19 15:04:33,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2021-11-19 15:04:33,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2021-11-19 15:04:33,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2021-11-19 15:04:33,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2021-11-19 15:04:33,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2021-11-19 15:04:33,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2021-11-19 15:04:33,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2021-11-19 15:04:33,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2021-11-19 15:04:33,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2021-11-19 15:04:33,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2021-11-19 15:04:33,667 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2021-11-19 15:04:33,668 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2021-11-19 15:04:33,669 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2021-11-19 15:04:33,687 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:04:33,727 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 15:04:33,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31710fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:33, skipping insertion in model container [2021-11-19 15:04:33,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:04:33,728 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:04:33,731 INFO L158 Benchmark]: Toolchain (without parser) took 5478.74ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 92.4MB in the beginning and 117.1MB in the end (delta: -24.7MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2021-11-19 15:04:33,731 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:04:33,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5475.50ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 92.4MB in the beginning and 117.1MB in the end (delta: -24.7MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2021-11-19 15:04:33,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5475.50ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 92.4MB in the beginning and 117.1MB in the end (delta: -24.7MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5208]: 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/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 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:04:36,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:04:36,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:04:36,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:04:36,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:04:36,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:04:36,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:04:36,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:04:36,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:04:36,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:04:36,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:04:36,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:04:36,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:04:36,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:04:36,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:04:36,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:04:36,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:04:36,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:04:36,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:04:36,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:04:36,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:04:36,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:04:36,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:04:36,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:04:36,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:04:36,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:04:36,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:04:36,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:04:36,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:04:36,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:04:36,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:04:36,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:04:36,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:04:36,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:04:36,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:04:36,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:04:36,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:04:36,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:04:36,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:04:36,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:04:36,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:04:36,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:04:36,965 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:04:36,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:04:36,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:04:36,967 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:04:36,967 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:04:36,967 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:04:36,968 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:04:36,968 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:04:36,968 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:04:36,968 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:04:36,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:04:36,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:04:36,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:04:36,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:04:36,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:04:36,971 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:04:36,971 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:04:36,971 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:04:36,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:04:36,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:04:36,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:04:36,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:04:36,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:04:36,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:04:36,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:04:36,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:04:36,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:04:36,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:04:36,974 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:04:36,974 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:04:36,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:04:36,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:04:36,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:04:36,975 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb [2021-11-19 15:04:37,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:04:37,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:04:37,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:04:37,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:04:37,549 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:04:37,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2021-11-19 15:04:37,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/data/5b5ab7f99/059ed188d88f4b18b35f630c8a3d16f1/FLAGf76651bf1 [2021-11-19 15:04:39,084 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:04:39,084 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2021-11-19 15:04:39,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/data/5b5ab7f99/059ed188d88f4b18b35f630c8a3d16f1/FLAGf76651bf1 [2021-11-19 15:04:39,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/data/5b5ab7f99/059ed188d88f4b18b35f630c8a3d16f1 [2021-11-19 15:04:39,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:04:39,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:04:39,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:04:39,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:04:39,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:04:39,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:39" (1/1) ... [2021-11-19 15:04:39,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b2e3b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:39, skipping insertion in model container [2021-11-19 15:04:39,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:39" (1/1) ... [2021-11-19 15:04:39,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:04:39,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:04:44,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2021-11-19 15:04:44,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2021-11-19 15:04:44,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2021-11-19 15:04:44,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2021-11-19 15:04:44,668 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2021-11-19 15:04:44,668 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2021-11-19 15:04:44,669 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2021-11-19 15:04:44,670 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2021-11-19 15:04:44,671 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2021-11-19 15:04:44,671 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2021-11-19 15:04:44,672 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2021-11-19 15:04:44,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2021-11-19 15:04:44,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2021-11-19 15:04:44,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2021-11-19 15:04:44,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2021-11-19 15:04:44,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2021-11-19 15:04:44,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2021-11-19 15:04:44,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2021-11-19 15:04:44,678 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2021-11-19 15:04:44,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2021-11-19 15:04:44,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2021-11-19 15:04:44,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2021-11-19 15:04:44,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2021-11-19 15:04:44,685 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2021-11-19 15:04:44,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2021-11-19 15:04:44,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2021-11-19 15:04:44,687 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2021-11-19 15:04:44,688 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2021-11-19 15:04:44,689 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2021-11-19 15:04:44,691 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2021-11-19 15:04:44,692 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2021-11-19 15:04:44,692 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2021-11-19 15:04:44,694 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2021-11-19 15:04:44,694 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2021-11-19 15:04:44,695 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2021-11-19 15:04:44,696 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2021-11-19 15:04:44,696 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2021-11-19 15:04:44,697 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2021-11-19 15:04:44,698 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2021-11-19 15:04:44,699 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2021-11-19 15:04:44,699 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2021-11-19 15:04:44,700 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2021-11-19 15:04:44,700 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2021-11-19 15:04:44,701 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2021-11-19 15:04:44,702 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2021-11-19 15:04:44,702 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2021-11-19 15:04:44,703 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2021-11-19 15:04:44,704 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2021-11-19 15:04:44,705 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2021-11-19 15:04:44,705 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2021-11-19 15:04:44,706 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2021-11-19 15:04:44,707 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2021-11-19 15:04:44,707 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2021-11-19 15:04:44,708 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2021-11-19 15:04:44,708 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2021-11-19 15:04:44,709 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2021-11-19 15:04:44,709 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2021-11-19 15:04:44,710 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2021-11-19 15:04:44,711 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2021-11-19 15:04:44,711 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2021-11-19 15:04:44,712 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_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2021-11-19 15:04:44,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2021-11-19 15:04:44,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2021-11-19 15:04:44,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2021-11-19 15:04:44,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2021-11-19 15:04:44,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2021-11-19 15:04:44,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2021-11-19 15:04:44,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2021-11-19 15:04:44,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2021-11-19 15:04:44,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2021-11-19 15:04:44,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2021-11-19 15:04:44,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2021-11-19 15:04:44,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2021-11-19 15:04:44,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2021-11-19 15:04:44,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2021-11-19 15:04:44,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2021-11-19 15:04:44,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2021-11-19 15:04:44,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2021-11-19 15:04:44,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2021-11-19 15:04:44,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2021-11-19 15:04:44,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2021-11-19 15:04:44,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2021-11-19 15:04:44,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2021-11-19 15:04:44,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2021-11-19 15:04:44,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2021-11-19 15:04:44,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2021-11-19 15:04:44,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2021-11-19 15:04:44,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2021-11-19 15:04:44,767 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:04:44,841 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:04:44,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:04:45,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2021-11-19 15:04:45,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2021-11-19 15:04:45,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2021-11-19 15:04:45,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2021-11-19 15:04:45,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2021-11-19 15:04:45,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2021-11-19 15:04:45,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2021-11-19 15:04:45,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2021-11-19 15:04:45,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2021-11-19 15:04:45,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2021-11-19 15:04:45,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2021-11-19 15:04:45,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2021-11-19 15:04:45,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2021-11-19 15:04:45,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2021-11-19 15:04:45,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2021-11-19 15:04:45,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2021-11-19 15:04:45,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2021-11-19 15:04:45,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2021-11-19 15:04:45,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2021-11-19 15:04:45,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2021-11-19 15:04:45,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2021-11-19 15:04:45,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2021-11-19 15:04:45,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2021-11-19 15:04:45,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2021-11-19 15:04:45,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2021-11-19 15:04:45,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2021-11-19 15:04:45,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2021-11-19 15:04:45,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2021-11-19 15:04:45,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2021-11-19 15:04:45,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2021-11-19 15:04:45,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2021-11-19 15:04:45,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2021-11-19 15:04:45,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2021-11-19 15:04:45,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2021-11-19 15:04:45,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2021-11-19 15:04:45,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2021-11-19 15:04:45,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2021-11-19 15:04:45,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2021-11-19 15:04:45,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2021-11-19 15:04:45,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2021-11-19 15:04:45,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2021-11-19 15:04:45,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2021-11-19 15:04:45,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2021-11-19 15:04:45,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2021-11-19 15:04:45,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2021-11-19 15:04:45,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2021-11-19 15:04:45,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2021-11-19 15:04:45,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2021-11-19 15:04:45,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2021-11-19 15:04:45,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2021-11-19 15:04:45,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2021-11-19 15:04:45,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2021-11-19 15:04:45,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2021-11-19 15:04:45,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2021-11-19 15:04:45,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2021-11-19 15:04:45,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2021-11-19 15:04:45,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2021-11-19 15:04:45,407 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2021-11-19 15:04:45,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2021-11-19 15:04:45,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2021-11-19 15:04:45,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2021-11-19 15:04:45,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2021-11-19 15:04:45,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2021-11-19 15:04:45,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2021-11-19 15:04:45,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2021-11-19 15:04:45,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2021-11-19 15:04:45,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2021-11-19 15:04:45,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2021-11-19 15:04:45,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2021-11-19 15:04:45,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2021-11-19 15:04:45,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2021-11-19 15:04:45,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2021-11-19 15:04:45,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2021-11-19 15:04:45,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2021-11-19 15:04:45,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2021-11-19 15:04:45,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2021-11-19 15:04:45,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2021-11-19 15:04:45,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2021-11-19 15:04:45,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2021-11-19 15:04:45,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2021-11-19 15:04:45,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2021-11-19 15:04:45,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2021-11-19 15:04:45,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2021-11-19 15:04:45,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2021-11-19 15:04:45,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2021-11-19 15:04:45,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2021-11-19 15:04:45,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2021-11-19 15:04:45,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2021-11-19 15:04:45,446 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:04:45,477 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:04:46,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2021-11-19 15:04:46,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2021-11-19 15:04:46,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2021-11-19 15:04:46,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2021-11-19 15:04:46,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2021-11-19 15:04:46,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2021-11-19 15:04:46,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2021-11-19 15:04:46,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2021-11-19 15:04:46,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2021-11-19 15:04:46,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2021-11-19 15:04:46,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2021-11-19 15:04:46,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2021-11-19 15:04:46,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2021-11-19 15:04:46,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2021-11-19 15:04:46,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2021-11-19 15:04:46,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2021-11-19 15:04:46,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2021-11-19 15:04:46,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2021-11-19 15:04:46,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2021-11-19 15:04:46,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2021-11-19 15:04:46,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2021-11-19 15:04:46,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2021-11-19 15:04:46,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2021-11-19 15:04:46,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2021-11-19 15:04:46,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2021-11-19 15:04:46,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2021-11-19 15:04:46,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2021-11-19 15:04:46,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2021-11-19 15:04:46,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2021-11-19 15:04:46,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2021-11-19 15:04:46,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2021-11-19 15:04:46,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2021-11-19 15:04:46,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2021-11-19 15:04:46,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2021-11-19 15:04:46,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2021-11-19 15:04:46,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2021-11-19 15:04:46,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2021-11-19 15:04:46,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2021-11-19 15:04:46,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2021-11-19 15:04:46,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2021-11-19 15:04:46,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2021-11-19 15:04:46,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2021-11-19 15:04:46,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2021-11-19 15:04:46,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2021-11-19 15:04:46,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2021-11-19 15:04:46,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2021-11-19 15:04:46,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2021-11-19 15:04:46,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2021-11-19 15:04:46,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2021-11-19 15:04:46,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2021-11-19 15:04:46,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2021-11-19 15:04:46,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2021-11-19 15:04:46,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2021-11-19 15:04:46,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2021-11-19 15:04:46,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2021-11-19 15:04:46,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2021-11-19 15:04:46,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2021-11-19 15:04:46,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2021-11-19 15:04:46,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2021-11-19 15:04:46,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2021-11-19 15:04:46,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2021-11-19 15:04:46,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2021-11-19 15:04:46,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2021-11-19 15:04:46,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2021-11-19 15:04:46,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2021-11-19 15:04:46,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2021-11-19 15:04:46,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2021-11-19 15:04:46,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2021-11-19 15:04:46,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2021-11-19 15:04:46,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2021-11-19 15:04:46,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2021-11-19 15:04:46,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2021-11-19 15:04:46,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2021-11-19 15:04:46,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2021-11-19 15:04:46,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2021-11-19 15:04:46,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2021-11-19 15:04:46,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2021-11-19 15:04:46,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2021-11-19 15:04:46,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2021-11-19 15:04:46,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2021-11-19 15:04:46,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2021-11-19 15:04:46,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2021-11-19 15:04:46,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2021-11-19 15:04:46,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2021-11-19 15:04:46,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2021-11-19 15:04:46,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2021-11-19 15:04:46,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2021-11-19 15:04:46,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2021-11-19 15:04:46,093 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:04:46,461 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:04:46,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46 WrapperNode [2021-11-19 15:04:46,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:04:46,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:04:46,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:04:46,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:04:46,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (1/1) ... [2021-11-19 15:04:46,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (1/1) ... [2021-11-19 15:04:46,925 INFO L137 Inliner]: procedures = 650, calls = 2105, calls flagged for inlining = 297, calls inlined = 221, statements flattened = 4791 [2021-11-19 15:04:46,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:04:46,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:04:46,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:04:46,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:04:46,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (1/1) ... [2021-11-19 15:04:46,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (1/1) ... [2021-11-19 15:04:46,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (1/1) ... [2021-11-19 15:04:46,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (1/1) ... [2021-11-19 15:04:47,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (1/1) ... [2021-11-19 15:04:47,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (1/1) ... [2021-11-19 15:04:47,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (1/1) ... [2021-11-19 15:04:47,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:04:47,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:04:47,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:04:47,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:04:47,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (1/1) ... [2021-11-19 15:04:47,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:04:47,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:04:47,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:04:47,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:04:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-19 15:04:47,325 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-19 15:04:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2021-11-19 15:04:47,325 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2021-11-19 15:04:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 15:04:47,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 15:04:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 15:04:47,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 15:04:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2021-11-19 15:04:47,326 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2021-11-19 15:04:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_5_23 [2021-11-19 15:04:47,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_5_23 [2021-11-19 15:04:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:04:47,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:04:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 15:04:47,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 15:04:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:04:47,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:04:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2021-11-19 15:04:47,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2021-11-19 15:04:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 15:04:47,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 15:04:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 15:04:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 15:04:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_reset_store [2021-11-19 15:04:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_reset_store [2021-11-19 15:04:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 15:04:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 15:04:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 15:04:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2021-11-19 15:04:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2021-11-19 15:04:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 15:04:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 15:04:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 15:04:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 15:04:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2021-11-19 15:04:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2021-11-19 15:04:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:04:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-11-19 15:04:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-11-19 15:04:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2021-11-19 15:04:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2021-11-19 15:04:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 15:04:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:04:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:04:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:04:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 15:04:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 15:04:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2021-11-19 15:04:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2021-11-19 15:04:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 15:04:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 15:04:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-19 15:04:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-19 15:04:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2021-11-19 15:04:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2021-11-19 15:04:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-19 15:04:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-19 15:04:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 15:04:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 15:04:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 15:04:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 15:04:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-19 15:04:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-19 15:04:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 15:04:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 15:04:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 15:04:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 15:04:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 15:04:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 15:04:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2021-11-19 15:04:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2021-11-19 15:04:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 15:04:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 15:04:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 15:04:47,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 15:04:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2021-11-19 15:04:47,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2021-11-19 15:04:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 15:04:47,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 15:04:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 15:04:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 15:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-19 15:04:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-19 15:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-19 15:04:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-19 15:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 15:04:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 15:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-19 15:04:47,392 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-19 15:04:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 15:04:47,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 15:04:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:04:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2021-11-19 15:04:47,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2021-11-19 15:04:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:04:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 15:04:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 15:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:04:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-19 15:04:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-19 15:04:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2021-11-19 15:04:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2021-11-19 15:04:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-19 15:04:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-19 15:04:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-19 15:04:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-19 15:04:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2021-11-19 15:04:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2021-11-19 15:04:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 15:04:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 15:04:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 15:04:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 15:04:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 15:04:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 15:04:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-19 15:04:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-19 15:04:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2021-11-19 15:04:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2021-11-19 15:04:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:04:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-11-19 15:04:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-11-19 15:04:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:04:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:04:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:04:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-19 15:04:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-19 15:04:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2021-11-19 15:04:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2021-11-19 15:04:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:04:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:04:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:04:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:04:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:04:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 15:04:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 15:04:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:04:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:04:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2021-11-19 15:04:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2021-11-19 15:04:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2021-11-19 15:04:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2021-11-19 15:04:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2021-11-19 15:04:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2021-11-19 15:04:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2021-11-19 15:04:47,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2021-11-19 15:04:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 15:04:47,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 15:04:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2021-11-19 15:04:47,399 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2021-11-19 15:04:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-19 15:04:47,399 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-19 15:04:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 15:04:47,399 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 15:04:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 15:04:47,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 15:04:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2021-11-19 15:04:47,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2021-11-19 15:04:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2021-11-19 15:04:47,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2021-11-19 15:04:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer_103 [2021-11-19 15:04:47,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer_103 [2021-11-19 15:04:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2021-11-19 15:04:47,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2021-11-19 15:04:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 15:04:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 15:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-19 15:04:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-19 15:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2021-11-19 15:04:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2021-11-19 15:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 15:04:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 15:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 15:04:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 15:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 15:04:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 15:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2021-11-19 15:04:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2021-11-19 15:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-11-19 15:04:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-11-19 15:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-11-19 15:04:47,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-11-19 15:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 15:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-19 15:04:47,403 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-19 15:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 15:04:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 15:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 15:04:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 15:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-19 15:04:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-19 15:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 15:04:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 15:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 15:04:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 15:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 15:04:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 15:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-19 15:04:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-19 15:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 15:04:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 15:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 15:04:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 15:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 15:04:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 15:04:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-19 15:04:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-19 15:04:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 15:04:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 15:04:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-19 15:04:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-19 15:04:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:04:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:04:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 15:04:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 15:04:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 15:04:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 15:04:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 15:04:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 15:04:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2021-11-19 15:04:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2021-11-19 15:04:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2021-11-19 15:04:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2021-11-19 15:04:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2021-11-19 15:04:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2021-11-19 15:04:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 15:04:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 15:04:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:04:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure edid_show [2021-11-19 15:04:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_show [2021-11-19 15:04:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:04:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:04:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:04:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 15:04:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 15:04:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 15:04:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 15:04:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2021-11-19 15:04:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2021-11-19 15:04:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 15:04:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 15:04:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 15:04:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 15:04:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-19 15:04:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-19 15:04:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_2 [2021-11-19 15:04:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_2 [2021-11-19 15:04:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer [2021-11-19 15:04:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer [2021-11-19 15:04:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2021-11-19 15:04:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2021-11-19 15:04:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-19 15:04:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure edid_store [2021-11-19 15:04:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_store [2021-11-19 15:04:48,493 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:04:48,502 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:04:49,014 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 15:05:37,176 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:05:37,204 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:05:37,204 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 15:05:37,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:05:37 BoogieIcfgContainer [2021-11-19 15:05:37,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:05:37,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:05:37,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:05:37,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:05:37,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:04:39" (1/3) ... [2021-11-19 15:05:37,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242725ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:05:37, skipping insertion in model container [2021-11-19 15:05:37,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:46" (2/3) ... [2021-11-19 15:05:37,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242725ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:05:37, skipping insertion in model container [2021-11-19 15:05:37,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:05:37" (3/3) ... [2021-11-19 15:05:37,221 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2021-11-19 15:05:37,228 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:05:37,228 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-11-19 15:05:37,371 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:05:37,385 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 15:05:37,385 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-11-19 15:05:37,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 1732 states, 1156 states have (on average 1.2655709342560553) internal successors, (1463), 1233 states have internal predecessors, (1463), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) [2021-11-19 15:05:37,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-19 15:05:37,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:37,496 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:37,498 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:05:37,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:37,505 INFO L85 PathProgramCache]: Analyzing trace with hash 804741773, now seen corresponding path program 1 times [2021-11-19 15:05:37,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:37,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934149086] [2021-11-19 15:05:37,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:37,527 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:37,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:37,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:37,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:05:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:39,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:05:39,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:40,661 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:05:40,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:41,568 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:05:41,569 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:41,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934149086] [2021-11-19 15:05:41,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934149086] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:41,571 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:41,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:05:41,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306888711] [2021-11-19 15:05:41,574 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:41,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:05:41,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:41,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:05:41,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:05:41,636 INFO L87 Difference]: Start difference. First operand has 1732 states, 1156 states have (on average 1.2655709342560553) internal successors, (1463), 1233 states have internal predecessors, (1463), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 15:05:42,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:42,150 INFO L93 Difference]: Finished difference Result 3414 states and 4675 transitions. [2021-11-19 15:05:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:05:42,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 71 [2021-11-19 15:05:42,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:42,196 INFO L225 Difference]: With dead ends: 3414 [2021-11-19 15:05:42,196 INFO L226 Difference]: Without dead ends: 1711 [2021-11-19 15:05:42,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:05:42,229 INFO L933 BasicCegarLoop]: 2266 mSDtfsCounter, 2214 mSDsluCounter, 4528 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 6794 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:42,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2216 Valid, 6794 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:05:42,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2021-11-19 15:05:42,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1711. [2021-11-19 15:05:42,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1146 states have (on average 1.2286212914485166) internal successors, (1408), 1215 states have internal predecessors, (1408), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-11-19 15:05:42,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2244 transitions. [2021-11-19 15:05:42,531 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2244 transitions. Word has length 71 [2021-11-19 15:05:42,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:42,533 INFO L470 AbstractCegarLoop]: Abstraction has 1711 states and 2244 transitions. [2021-11-19 15:05:42,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 15:05:42,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2244 transitions. [2021-11-19 15:05:42,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-19 15:05:42,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:42,549 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:42,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:42,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:42,775 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:05:42,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:42,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1676217783, now seen corresponding path program 1 times [2021-11-19 15:05:42,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:42,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311747809] [2021-11-19 15:05:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:42,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:42,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:42,780 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:42,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:05:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:44,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:05:44,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:05:45,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:46,616 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:05:46,617 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:46,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311747809] [2021-11-19 15:05:46,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311747809] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:46,617 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:46,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:05:46,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712887427] [2021-11-19 15:05:46,618 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:46,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:05:46,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:46,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:05:46,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:05:46,622 INFO L87 Difference]: Start difference. First operand 1711 states and 2244 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 15:05:46,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:46,857 INFO L93 Difference]: Finished difference Result 1711 states and 2244 transitions. [2021-11-19 15:05:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:05:46,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 77 [2021-11-19 15:05:46,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:46,878 INFO L225 Difference]: With dead ends: 1711 [2021-11-19 15:05:46,878 INFO L226 Difference]: Without dead ends: 1709 [2021-11-19 15:05:46,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:05:46,882 INFO L933 BasicCegarLoop]: 2240 mSDtfsCounter, 2182 mSDsluCounter, 4476 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 6716 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 15:05:46,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2184 Valid, 6716 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:05:46,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2021-11-19 15:05:47,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1709. [2021-11-19 15:05:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1145 states have (on average 1.227947598253275) internal successors, (1406), 1213 states have internal predecessors, (1406), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-11-19 15:05:47,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2242 transitions. [2021-11-19 15:05:47,026 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2242 transitions. Word has length 77 [2021-11-19 15:05:47,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:47,028 INFO L470 AbstractCegarLoop]: Abstraction has 1709 states and 2242 transitions. [2021-11-19 15:05:47,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 15:05:47,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2242 transitions. [2021-11-19 15:05:47,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-19 15:05:47,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:47,031 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:47,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:47,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:47,245 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:05:47,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:47,246 INFO L85 PathProgramCache]: Analyzing trace with hash -820059774, now seen corresponding path program 1 times [2021-11-19 15:05:47,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:47,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552473027] [2021-11-19 15:05:47,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:47,248 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:47,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:47,250 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:47,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:05:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:48,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:05:48,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:05:49,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:05:50,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:50,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552473027] [2021-11-19 15:05:50,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552473027] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:50,656 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:50,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:05:50,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865725608] [2021-11-19 15:05:50,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:50,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:05:50,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:50,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:05:50,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:05:50,659 INFO L87 Difference]: Start difference. First operand 1709 states and 2242 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 15:05:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:50,877 INFO L93 Difference]: Finished difference Result 1709 states and 2242 transitions. [2021-11-19 15:05:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:05:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 83 [2021-11-19 15:05:50,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:50,895 INFO L225 Difference]: With dead ends: 1709 [2021-11-19 15:05:50,895 INFO L226 Difference]: Without dead ends: 1707 [2021-11-19 15:05:50,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:05:50,898 INFO L933 BasicCegarLoop]: 2238 mSDtfsCounter, 2177 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2179 SdHoareTripleChecker+Valid, 4474 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 15:05:50,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2179 Valid, 4474 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:05:50,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-11-19 15:05:51,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2021-11-19 15:05:51,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1144 states have (on average 1.2272727272727273) internal successors, (1404), 1211 states have internal predecessors, (1404), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-11-19 15:05:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2240 transitions. [2021-11-19 15:05:51,043 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2240 transitions. Word has length 83 [2021-11-19 15:05:51,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:51,044 INFO L470 AbstractCegarLoop]: Abstraction has 1707 states and 2240 transitions. [2021-11-19 15:05:51,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 15:05:51,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2240 transitions. [2021-11-19 15:05:51,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-19 15:05:51,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:51,047 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:51,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:51,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:51,271 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:05:51,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:51,272 INFO L85 PathProgramCache]: Analyzing trace with hash 540988092, now seen corresponding path program 1 times [2021-11-19 15:05:51,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:51,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336682665] [2021-11-19 15:05:51,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:51,274 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:51,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:51,276 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:51,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:05:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:52,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:05:52,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:53,601 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:05:53,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:05:54,240 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:54,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336682665] [2021-11-19 15:05:54,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336682665] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:54,241 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:54,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:05:54,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180767222] [2021-11-19 15:05:54,241 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:54,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:05:54,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:54,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:05:54,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:05:54,243 INFO L87 Difference]: Start difference. First operand 1707 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 15:05:54,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:54,459 INFO L93 Difference]: Finished difference Result 1707 states and 2240 transitions. [2021-11-19 15:05:54,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:05:54,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 89 [2021-11-19 15:05:54,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:54,477 INFO L225 Difference]: With dead ends: 1707 [2021-11-19 15:05:54,478 INFO L226 Difference]: Without dead ends: 1705 [2021-11-19 15:05:54,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:05:54,480 INFO L933 BasicCegarLoop]: 2236 mSDtfsCounter, 2166 mSDsluCounter, 4468 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2168 SdHoareTripleChecker+Valid, 6704 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 15:05:54,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2168 Valid, 6704 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:05:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2021-11-19 15:05:54,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1705. [2021-11-19 15:05:54,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1143 states have (on average 1.226596675415573) internal successors, (1402), 1209 states have internal predecessors, (1402), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-11-19 15:05:54,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2238 transitions. [2021-11-19 15:05:54,616 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2238 transitions. Word has length 89 [2021-11-19 15:05:54,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:54,616 INFO L470 AbstractCegarLoop]: Abstraction has 1705 states and 2238 transitions. [2021-11-19 15:05:54,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 15:05:54,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2238 transitions. [2021-11-19 15:05:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-19 15:05:54,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:54,619 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:54,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:54,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:54,843 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:05:54,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:54,843 INFO L85 PathProgramCache]: Analyzing trace with hash 116386593, now seen corresponding path program 1 times [2021-11-19 15:05:54,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:54,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363199306] [2021-11-19 15:05:54,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:54,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:54,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:54,846 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:54,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:05:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:56,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:05:56,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:05:57,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:05:58,141 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:58,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363199306] [2021-11-19 15:05:58,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363199306] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:58,143 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:58,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:05:58,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271323339] [2021-11-19 15:05:58,144 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:58,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:05:58,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:58,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:05:58,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:05:58,146 INFO L87 Difference]: Start difference. First operand 1705 states and 2238 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 15:05:58,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:58,390 INFO L93 Difference]: Finished difference Result 1705 states and 2238 transitions. [2021-11-19 15:05:58,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:05:58,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 95 [2021-11-19 15:05:58,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:58,408 INFO L225 Difference]: With dead ends: 1705 [2021-11-19 15:05:58,408 INFO L226 Difference]: Without dead ends: 1703 [2021-11-19 15:05:58,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:05:58,411 INFO L933 BasicCegarLoop]: 2234 mSDtfsCounter, 2158 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 6698 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 15:05:58,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2160 Valid, 6698 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:05:58,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-11-19 15:05:58,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1703. [2021-11-19 15:05:58,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1142 states have (on average 1.2259194395796849) internal successors, (1400), 1207 states have internal predecessors, (1400), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-11-19 15:05:58,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2236 transitions. [2021-11-19 15:05:58,557 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2236 transitions. Word has length 95 [2021-11-19 15:05:58,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:58,558 INFO L470 AbstractCegarLoop]: Abstraction has 1703 states and 2236 transitions. [2021-11-19 15:05:58,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 15:05:58,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2236 transitions. [2021-11-19 15:05:58,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-19 15:05:58,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:58,561 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:58,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:58,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:58,787 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:05:58,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:58,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1703073589, now seen corresponding path program 1 times [2021-11-19 15:05:58,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:58,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904119476] [2021-11-19 15:05:58,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:58,789 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:58,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:58,790 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:58,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:05:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:59,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:05:59,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:06:01,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:02,307 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:06:02,307 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:02,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904119476] [2021-11-19 15:06:02,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904119476] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:02,308 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:02,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:06:02,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202607258] [2021-11-19 15:06:02,308 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:02,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:06:02,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:02,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:06:02,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:06:02,310 INFO L87 Difference]: Start difference. First operand 1703 states and 2236 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 15:06:02,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:02,579 INFO L93 Difference]: Finished difference Result 1703 states and 2236 transitions. [2021-11-19 15:06:02,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:06:02,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2021-11-19 15:06:02,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:02,596 INFO L225 Difference]: With dead ends: 1703 [2021-11-19 15:06:02,596 INFO L226 Difference]: Without dead ends: 1701 [2021-11-19 15:06:02,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:06:02,600 INFO L933 BasicCegarLoop]: 2232 mSDtfsCounter, 2150 mSDsluCounter, 4460 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 6692 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 15:06:02,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2152 Valid, 6692 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:02,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2021-11-19 15:06:02,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1701. [2021-11-19 15:06:02,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1141 states have (on average 1.2252410166520595) internal successors, (1398), 1205 states have internal predecessors, (1398), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-11-19 15:06:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2234 transitions. [2021-11-19 15:06:02,842 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2234 transitions. Word has length 101 [2021-11-19 15:06:02,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:02,843 INFO L470 AbstractCegarLoop]: Abstraction has 1701 states and 2234 transitions. [2021-11-19 15:06:02,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 15:06:02,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2234 transitions. [2021-11-19 15:06:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-19 15:06:02,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:02,847 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:02,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:03,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:03,075 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:06:03,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:03,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1496204581, now seen corresponding path program 1 times [2021-11-19 15:06:03,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:03,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826748859] [2021-11-19 15:06:03,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:03,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:03,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:03,078 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:03,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 15:06:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:04,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:06:04,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:05,518 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:06:05,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:06,201 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:06:06,201 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:06,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826748859] [2021-11-19 15:06:06,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826748859] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:06,201 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:06,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:06:06,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046261516] [2021-11-19 15:06:06,202 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:06,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:06:06,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:06,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:06:06,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:06:06,204 INFO L87 Difference]: Start difference. First operand 1701 states and 2234 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 15:06:06,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:06,405 INFO L93 Difference]: Finished difference Result 1701 states and 2234 transitions. [2021-11-19 15:06:06,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:06:06,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 107 [2021-11-19 15:06:06,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:06,419 INFO L225 Difference]: With dead ends: 1701 [2021-11-19 15:06:06,419 INFO L226 Difference]: Without dead ends: 1699 [2021-11-19 15:06:06,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 209 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 15:06:06,422 INFO L933 BasicCegarLoop]: 2230 mSDtfsCounter, 2145 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2147 SdHoareTripleChecker+Valid, 4458 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 15:06:06,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2147 Valid, 4458 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:06,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2021-11-19 15:06:06,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2021-11-19 15:06:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1140 states have (on average 1.224561403508772) internal successors, (1396), 1203 states have internal predecessors, (1396), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-11-19 15:06:06,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2232 transitions. [2021-11-19 15:06:06,566 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2232 transitions. Word has length 107 [2021-11-19 15:06:06,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:06,567 INFO L470 AbstractCegarLoop]: Abstraction has 1699 states and 2232 transitions. [2021-11-19 15:06:06,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 15:06:06,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2232 transitions. [2021-11-19 15:06:06,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-19 15:06:06,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:06,573 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:06,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:06,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:06,795 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:06:06,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:06,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1022398919, now seen corresponding path program 1 times [2021-11-19 15:06:06,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:06,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54925066] [2021-11-19 15:06:06,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:06,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:06,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:06,798 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:06,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 15:06:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:07,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:06:07,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:09,818 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:06:09,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:10,673 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:06:10,673 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:10,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54925066] [2021-11-19 15:06:10,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54925066] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:10,673 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:10,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:06:10,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411028121] [2021-11-19 15:06:10,674 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:10,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:06:10,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:10,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:06:10,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:06:10,675 INFO L87 Difference]: Start difference. First operand 1699 states and 2232 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 15:06:10,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:10,995 INFO L93 Difference]: Finished difference Result 1699 states and 2232 transitions. [2021-11-19 15:06:10,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:06:10,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 113 [2021-11-19 15:06:10,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:11,013 INFO L225 Difference]: With dead ends: 1699 [2021-11-19 15:06:11,013 INFO L226 Difference]: Without dead ends: 1697 [2021-11-19 15:06:11,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:06:11,016 INFO L933 BasicCegarLoop]: 2228 mSDtfsCounter, 2138 mSDsluCounter, 4444 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 6672 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 15:06:11,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2140 Valid, 6672 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:11,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2021-11-19 15:06:11,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1697. [2021-11-19 15:06:11,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1139 states have (on average 1.2238805970149254) internal successors, (1394), 1201 states have internal predecessors, (1394), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-11-19 15:06:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2230 transitions. [2021-11-19 15:06:11,213 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2230 transitions. Word has length 113 [2021-11-19 15:06:11,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:11,214 INFO L470 AbstractCegarLoop]: Abstraction has 1697 states and 2230 transitions. [2021-11-19 15:06:11,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 15:06:11,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2230 transitions. [2021-11-19 15:06:11,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-19 15:06:11,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:11,220 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:11,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:11,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:11,437 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:06:11,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:11,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1022287868, now seen corresponding path program 1 times [2021-11-19 15:06:11,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:11,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94167274] [2021-11-19 15:06:11,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:11,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:11,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:11,440 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:11,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 15:06:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:12,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:06:12,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:06:14,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:15,421 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:06:15,421 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:15,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94167274] [2021-11-19 15:06:15,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94167274] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:15,422 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:15,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:06:15,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651320539] [2021-11-19 15:06:15,423 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:15,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:06:15,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:15,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:06:15,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:06:15,425 INFO L87 Difference]: Start difference. First operand 1697 states and 2230 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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 15:06:15,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:15,704 INFO L93 Difference]: Finished difference Result 1697 states and 2230 transitions. [2021-11-19 15:06:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:06:15,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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 115 [2021-11-19 15:06:15,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:15,722 INFO L225 Difference]: With dead ends: 1697 [2021-11-19 15:06:15,723 INFO L226 Difference]: Without dead ends: 1695 [2021-11-19 15:06:15,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:06:15,728 INFO L933 BasicCegarLoop]: 2226 mSDtfsCounter, 2130 mSDsluCounter, 4448 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 6674 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 15:06:15,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2132 Valid, 6674 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2021-11-19 15:06:15,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2021-11-19 15:06:15,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1138 states have (on average 1.2231985940246046) internal successors, (1392), 1199 states have internal predecessors, (1392), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-11-19 15:06:15,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2228 transitions. [2021-11-19 15:06:15,965 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2228 transitions. Word has length 115 [2021-11-19 15:06:15,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:15,966 INFO L470 AbstractCegarLoop]: Abstraction has 1695 states and 2228 transitions. [2021-11-19 15:06:15,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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 15:06:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2228 transitions. [2021-11-19 15:06:15,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-19 15:06:15,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:15,970 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:16,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:16,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:16,195 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:06:16,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:16,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2059575562, now seen corresponding path program 1 times [2021-11-19 15:06:16,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:16,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048096904] [2021-11-19 15:06:16,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:16,196 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:16,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:16,197 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:16,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 15:06:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:17,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:06:17,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:06:19,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:20,287 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:06:20,287 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:20,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048096904] [2021-11-19 15:06:20,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048096904] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:20,288 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:20,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:06:20,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382333975] [2021-11-19 15:06:20,289 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:20,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:06:20,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:20,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:06:20,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:06:20,292 INFO L87 Difference]: Start difference. First operand 1695 states and 2228 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 15:06:20,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:20,573 INFO L93 Difference]: Finished difference Result 1695 states and 2228 transitions. [2021-11-19 15:06:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:06:20,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 121 [2021-11-19 15:06:20,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:20,589 INFO L225 Difference]: With dead ends: 1695 [2021-11-19 15:06:20,589 INFO L226 Difference]: Without dead ends: 1693 [2021-11-19 15:06:20,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:06:20,592 INFO L933 BasicCegarLoop]: 2224 mSDtfsCounter, 2122 mSDsluCounter, 4444 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2124 SdHoareTripleChecker+Valid, 6668 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 15:06:20,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2124 Valid, 6668 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:20,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2021-11-19 15:06:20,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1693. [2021-11-19 15:06:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1137 states have (on average 1.2225153913808267) internal successors, (1390), 1197 states have internal predecessors, (1390), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-11-19 15:06:20,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2226 transitions. [2021-11-19 15:06:20,771 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2226 transitions. Word has length 121 [2021-11-19 15:06:20,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:20,774 INFO L470 AbstractCegarLoop]: Abstraction has 1693 states and 2226 transitions. [2021-11-19 15:06:20,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 15:06:20,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2226 transitions. [2021-11-19 15:06:20,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-19 15:06:20,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:20,778 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:20,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:21,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:21,003 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:06:21,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2127659301, now seen corresponding path program 1 times [2021-11-19 15:06:21,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:21,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043196471] [2021-11-19 15:06:21,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:21,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:21,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:21,007 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:21,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 15:06:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:22,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 15:06:22,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-19 15:06:23,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:25,113 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2021-11-19 15:06:25,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:25,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043196471] [2021-11-19 15:06:25,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043196471] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:25,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:06:25,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-19 15:06:25,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503714025] [2021-11-19 15:06:25,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:25,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:06:25,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:25,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:06:25,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:06:25,117 INFO L87 Difference]: Start difference. First operand 1693 states and 2226 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 15:06:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:27,185 INFO L93 Difference]: Finished difference Result 3626 states and 4823 transitions. [2021-11-19 15:06:27,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:06:27,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 168 [2021-11-19 15:06:27,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:27,205 INFO L225 Difference]: With dead ends: 3626 [2021-11-19 15:06:27,205 INFO L226 Difference]: Without dead ends: 1948 [2021-11-19 15:06:27,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-19 15:06:27,216 INFO L933 BasicCegarLoop]: 2321 mSDtfsCounter, 312 mSDsluCounter, 9000 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 11321 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:27,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 11321 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-19 15:06:27,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2021-11-19 15:06:27,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1697. [2021-11-19 15:06:27,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1140 states have (on average 1.2219298245614034) internal successors, (1393), 1200 states have internal predecessors, (1393), 420 states have call successors, (420), 115 states have call predecessors, (420), 114 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2021-11-19 15:06:27,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2231 transitions. [2021-11-19 15:06:27,388 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2231 transitions. Word has length 168 [2021-11-19 15:06:27,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:27,389 INFO L470 AbstractCegarLoop]: Abstraction has 1697 states and 2231 transitions. [2021-11-19 15:06:27,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 15:06:27,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2231 transitions. [2021-11-19 15:06:27,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-19 15:06:27,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:27,393 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:27,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:27,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:27,608 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:06:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:27,609 INFO L85 PathProgramCache]: Analyzing trace with hash 762116317, now seen corresponding path program 1 times [2021-11-19 15:06:27,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:27,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990347113] [2021-11-19 15:06:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:27,610 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:27,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:27,611 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:27,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 15:06:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:28,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 15:06:28,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-19 15:06:30,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-19 15:06:31,731 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:31,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990347113] [2021-11-19 15:06:31,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990347113] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:31,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [796788746] [2021-11-19 15:06:31,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:31,731 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:06:31,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:06:31,733 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:06:31,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-19 15:06:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:32,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:06:32,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-19 15:06:36,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-19 15:06:37,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [796788746] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:37,974 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 15:06:37,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [8, 8] total 14 [2021-11-19 15:06:37,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271547477] [2021-11-19 15:06:37,975 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:37,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:06:37,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:37,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:06:37,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:06:37,977 INFO L87 Difference]: Start difference. First operand 1697 states and 2231 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 15:06:40,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:42,120 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 15:06:59,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:59,254 INFO L93 Difference]: Finished difference Result 3350 states and 4455 transitions. [2021-11-19 15:06:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:06:59,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 168 [2021-11-19 15:06:59,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:59,275 INFO L225 Difference]: With dead ends: 3350 [2021-11-19 15:06:59,275 INFO L226 Difference]: Without dead ends: 1697 [2021-11-19 15:06:59,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-19 15:06:59,286 INFO L933 BasicCegarLoop]: 2222 mSDtfsCounter, 2140 mSDsluCounter, 7208 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 9430 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:59,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2145 Valid, 9430 Invalid, 1692 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1687 Invalid, 2 Unknown, 0 Unchecked, 20.5s Time] [2021-11-19 15:06:59,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2021-11-19 15:06:59,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1697. [2021-11-19 15:06:59,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1140 states have (on average 1.2210526315789474) internal successors, (1392), 1200 states have internal predecessors, (1392), 420 states have call successors, (420), 115 states have call predecessors, (420), 114 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2021-11-19 15:06:59,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2230 transitions. [2021-11-19 15:06:59,482 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2230 transitions. Word has length 168 [2021-11-19 15:06:59,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:59,485 INFO L470 AbstractCegarLoop]: Abstraction has 1697 states and 2230 transitions. [2021-11-19 15:06:59,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 15:06:59,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2230 transitions. [2021-11-19 15:06:59,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-19 15:06:59,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:59,490 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:59,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:59,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-19 15:06:59,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:59,905 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:06:59,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:59,906 INFO L85 PathProgramCache]: Analyzing trace with hash 762175899, now seen corresponding path program 1 times [2021-11-19 15:06:59,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:59,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073429898] [2021-11-19 15:06:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:59,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:59,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:59,908 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:59,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 15:07:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:01,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 15:07:01,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-19 15:07:02,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-19 15:07:04,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:04,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073429898] [2021-11-19 15:07:04,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073429898] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:07:04,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [379266742] [2021-11-19 15:07:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:04,270 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:07:04,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:07:04,275 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:07:04,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-19 15:07:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:06,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 15:07:06,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:08,297 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2021-11-19 15:07:08,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-11-19 15:07:09,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [379266742] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:07:09,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:07:09,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 6] total 13 [2021-11-19 15:07:09,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405337169] [2021-11-19 15:07:09,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:09,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:07:09,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:09,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:07:09,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-19 15:07:09,454 INFO L87 Difference]: Start difference. First operand 1697 states and 2230 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-19 15:07:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:10,013 INFO L93 Difference]: Finished difference Result 3616 states and 4805 transitions. [2021-11-19 15:07:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:07:10,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 168 [2021-11-19 15:07:10,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:10,032 INFO L225 Difference]: With dead ends: 3616 [2021-11-19 15:07:10,032 INFO L226 Difference]: Without dead ends: 1944 [2021-11-19 15:07:10,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:07:10,043 INFO L933 BasicCegarLoop]: 2602 mSDtfsCounter, 311 mSDsluCounter, 9918 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 12520 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:10,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 12520 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:07:10,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2021-11-19 15:07:10,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1697. [2021-11-19 15:07:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1140 states have (on average 1.2201754385964911) internal successors, (1391), 1199 states have internal predecessors, (1391), 420 states have call successors, (420), 115 states have call predecessors, (420), 114 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2021-11-19 15:07:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2229 transitions. [2021-11-19 15:07:10,222 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2229 transitions. Word has length 168 [2021-11-19 15:07:10,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:10,223 INFO L470 AbstractCegarLoop]: Abstraction has 1697 states and 2229 transitions. [2021-11-19 15:07:10,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-19 15:07:10,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2229 transitions. [2021-11-19 15:07:10,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-19 15:07:10,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:10,226 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:10,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:10,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:10,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 15:07:10,643 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:07:10,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:10,643 INFO L85 PathProgramCache]: Analyzing trace with hash -694467888, now seen corresponding path program 1 times [2021-11-19 15:07:10,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:07:10,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905671425] [2021-11-19 15:07:10,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:10,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:07:10,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:07:10,645 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:07:10,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 15:07:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:11,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:07:11,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:07:13,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:14,336 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:07:14,336 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:14,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905671425] [2021-11-19 15:07:14,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905671425] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:07:14,337 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:07:14,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:07:14,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434654524] [2021-11-19 15:07:14,338 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:14,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:07:14,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:14,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:07:14,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:07:14,340 INFO L87 Difference]: Start difference. First operand 1697 states and 2229 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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 15:07:14,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:14,678 INFO L93 Difference]: Finished difference Result 1697 states and 2229 transitions. [2021-11-19 15:07:14,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:07:14,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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 127 [2021-11-19 15:07:14,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:14,695 INFO L225 Difference]: With dead ends: 1697 [2021-11-19 15:07:14,695 INFO L226 Difference]: Without dead ends: 1695 [2021-11-19 15:07:14,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:07:14,698 INFO L933 BasicCegarLoop]: 2220 mSDtfsCounter, 2115 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 4438 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 15:07:14,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2117 Valid, 4438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:07:14,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2021-11-19 15:07:14,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2021-11-19 15:07:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1139 states have (on average 1.2194907813871818) internal successors, (1389), 1197 states have internal predecessors, (1389), 420 states have call successors, (420), 115 states have call predecessors, (420), 114 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2021-11-19 15:07:14,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2227 transitions. [2021-11-19 15:07:14,913 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2227 transitions. Word has length 127 [2021-11-19 15:07:14,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:14,914 INFO L470 AbstractCegarLoop]: Abstraction has 1695 states and 2227 transitions. [2021-11-19 15:07:14,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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 15:07:14,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2227 transitions. [2021-11-19 15:07:14,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-19 15:07:14,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:14,920 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:14,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:15,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:07:15,136 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:07:15,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:15,137 INFO L85 PathProgramCache]: Analyzing trace with hash 570155326, now seen corresponding path program 1 times [2021-11-19 15:07:15,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:07:15,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969539137] [2021-11-19 15:07:15,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:15,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:07:15,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:07:15,140 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:07:15,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 15:07:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:16,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 15:07:16,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 229 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-11-19 15:07:18,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:21,188 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-19 15:07:21,189 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:21,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969539137] [2021-11-19 15:07:21,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969539137] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:07:21,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1393130334] [2021-11-19 15:07:21,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:21,189 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:07:21,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:07:21,190 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:07:21,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-19 15:07:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:23,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 15:07:23,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:24,900 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-19 15:07:24,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 7 proven. 21 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-11-19 15:07:26,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1393130334] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:07:26,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:07:26,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 8, 6] total 14 [2021-11-19 15:07:26,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164576718] [2021-11-19 15:07:26,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:26,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:07:26,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:26,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:07:26,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:07:26,243 INFO L87 Difference]: Start difference. First operand 1695 states and 2227 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 15:07:26,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:26,858 INFO L93 Difference]: Finished difference Result 3607 states and 4792 transitions. [2021-11-19 15:07:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:07:26,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 172 [2021-11-19 15:07:26,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:26,893 INFO L225 Difference]: With dead ends: 3607 [2021-11-19 15:07:26,900 INFO L226 Difference]: Without dead ends: 1942 [2021-11-19 15:07:26,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 671 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-19 15:07:26,914 INFO L933 BasicCegarLoop]: 2599 mSDtfsCounter, 307 mSDsluCounter, 9912 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 12511 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:26,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 12511 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:07:26,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2021-11-19 15:07:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1695. [2021-11-19 15:07:27,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1139 states have (on average 1.218612818261633) internal successors, (1388), 1196 states have internal predecessors, (1388), 420 states have call successors, (420), 115 states have call predecessors, (420), 114 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2021-11-19 15:07:27,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2226 transitions. [2021-11-19 15:07:27,235 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2226 transitions. Word has length 172 [2021-11-19 15:07:27,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:27,235 INFO L470 AbstractCegarLoop]: Abstraction has 1695 states and 2226 transitions. [2021-11-19 15:07:27,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 15:07:27,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2226 transitions. [2021-11-19 15:07:27,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-19 15:07:27,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:27,240 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:27,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:27,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:27,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:07:27,661 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:07:27,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:27,662 INFO L85 PathProgramCache]: Analyzing trace with hash -304653120, now seen corresponding path program 1 times [2021-11-19 15:07:27,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:07:27,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958141886] [2021-11-19 15:07:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:27,664 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:07:27,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:07:27,665 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:07:27,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 15:07:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:28,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 15:07:28,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:32,783 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-19 15:07:32,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:39,105 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-19 15:07:39,105 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:39,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958141886] [2021-11-19 15:07:39,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958141886] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:07:39,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:07:39,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [18] total 33 [2021-11-19 15:07:39,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358235320] [2021-11-19 15:07:39,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:39,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 15:07:39,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:39,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 15:07:39,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=977, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 15:07:39,109 INFO L87 Difference]: Start difference. First operand 1695 states and 2226 transitions. Second operand has 18 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 7 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2021-11-19 15:07:46,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:46,861 INFO L93 Difference]: Finished difference Result 2716 states and 3524 transitions. [2021-11-19 15:07:46,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 15:07:46,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 7 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 164 [2021-11-19 15:07:46,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:46,870 INFO L225 Difference]: With dead ends: 2716 [2021-11-19 15:07:46,871 INFO L226 Difference]: Without dead ends: 1735 [2021-11-19 15:07:46,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=289, Invalid=1691, Unknown=0, NotChecked=0, Total=1980 [2021-11-19 15:07:46,877 INFO L933 BasicCegarLoop]: 2210 mSDtfsCounter, 88 mSDsluCounter, 35108 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 37318 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:46,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 37318 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-19 15:07:46,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2021-11-19 15:07:47,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1711. [2021-11-19 15:07:47,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1150 states have (on average 1.2165217391304348) internal successors, (1399), 1207 states have internal predecessors, (1399), 425 states have call successors, (425), 115 states have call predecessors, (425), 114 states have return successors, (423), 409 states have call predecessors, (423), 423 states have call successors, (423) [2021-11-19 15:07:47,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2247 transitions. [2021-11-19 15:07:47,086 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2247 transitions. Word has length 164 [2021-11-19 15:07:47,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:47,087 INFO L470 AbstractCegarLoop]: Abstraction has 1711 states and 2247 transitions. [2021-11-19 15:07:47,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 7 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2021-11-19 15:07:47,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2247 transitions. [2021-11-19 15:07:47,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-19 15:07:47,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:47,092 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:47,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:47,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:07:47,319 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:07:47,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:47,319 INFO L85 PathProgramCache]: Analyzing trace with hash 81209282, now seen corresponding path program 1 times [2021-11-19 15:07:47,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:07:47,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747283174] [2021-11-19 15:07:47,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:47,321 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:07:47,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:07:47,322 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:07:47,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 15:07:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:48,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:07:48,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:49,910 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-11-19 15:07:49,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:50,889 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-19 15:07:50,889 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:50,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747283174] [2021-11-19 15:07:50,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747283174] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:07:50,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:07:50,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-19 15:07:50,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685083513] [2021-11-19 15:07:50,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:50,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:07:50,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:50,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:07:50,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:07:50,891 INFO L87 Difference]: Start difference. First operand 1711 states and 2247 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-19 15:07:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:52,712 INFO L93 Difference]: Finished difference Result 2763 states and 3593 transitions. [2021-11-19 15:07:52,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:07:52,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 164 [2021-11-19 15:07:52,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:52,721 INFO L225 Difference]: With dead ends: 2763 [2021-11-19 15:07:52,722 INFO L226 Difference]: Without dead ends: 1733 [2021-11-19 15:07:52,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:07:52,727 INFO L933 BasicCegarLoop]: 2263 mSDtfsCounter, 628 mSDsluCounter, 8035 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 10298 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:52,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [628 Valid, 10298 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 15:07:52,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2021-11-19 15:07:52,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1709. [2021-11-19 15:07:52,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1149 states have (on average 1.2158398607484768) internal successors, (1397), 1206 states have internal predecessors, (1397), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:07:52,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2243 transitions. [2021-11-19 15:07:52,945 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2243 transitions. Word has length 164 [2021-11-19 15:07:52,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:52,945 INFO L470 AbstractCegarLoop]: Abstraction has 1709 states and 2243 transitions. [2021-11-19 15:07:52,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-19 15:07:52,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2243 transitions. [2021-11-19 15:07:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-19 15:07:52,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:52,949 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-19 15:07:52,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:53,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:07:53,163 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:07:53,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:53,163 INFO L85 PathProgramCache]: Analyzing trace with hash 93036411, now seen corresponding path program 1 times [2021-11-19 15:07:53,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:07:53,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824102689] [2021-11-19 15:07:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:53,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:07:53,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:07:53,166 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:07:53,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 15:07:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:54,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:07:54,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-19 15:07:55,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:55,600 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-19 15:07:55,601 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:55,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824102689] [2021-11-19 15:07:55,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824102689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:07:55,601 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:07:55,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 15:07:55,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099791957] [2021-11-19 15:07:55,602 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:55,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:07:55,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:55,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:07:55,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:07:55,604 INFO L87 Difference]: Start difference. First operand 1709 states and 2243 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-19 15:07:55,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:55,895 INFO L93 Difference]: Finished difference Result 1709 states and 2243 transitions. [2021-11-19 15:07:55,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:07:55,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 176 [2021-11-19 15:07:55,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:55,902 INFO L225 Difference]: With dead ends: 1709 [2021-11-19 15:07:55,902 INFO L226 Difference]: Without dead ends: 1707 [2021-11-19 15:07:55,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:07:55,904 INFO L933 BasicCegarLoop]: 2217 mSDtfsCounter, 11 mSDsluCounter, 6643 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8860 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:55,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 8860 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:07:55,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-11-19 15:07:56,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2021-11-19 15:07:56,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1148 states have (on average 1.2151567944250872) internal successors, (1395), 1204 states have internal predecessors, (1395), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:07:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2241 transitions. [2021-11-19 15:07:56,143 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2241 transitions. Word has length 176 [2021-11-19 15:07:56,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:56,146 INFO L470 AbstractCegarLoop]: Abstraction has 1707 states and 2241 transitions. [2021-11-19 15:07:56,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-19 15:07:56,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2241 transitions. [2021-11-19 15:07:56,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-19 15:07:56,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:56,149 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:56,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:56,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:07:56,363 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:07:56,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:56,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1593419609, now seen corresponding path program 1 times [2021-11-19 15:07:56,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:07:56,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479219906] [2021-11-19 15:07:56,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:56,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:07:56,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:07:56,367 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:07:56,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 15:07:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:57,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:07:57,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:07:59,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:00,685 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:00,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479219906] [2021-11-19 15:08:00,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479219906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:00,686 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:00,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:08:00,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673903321] [2021-11-19 15:08:00,686 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:00,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:08:00,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:00,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:08:00,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:08:00,688 INFO L87 Difference]: Start difference. First operand 1707 states and 2241 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 15:08:00,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:00,942 INFO L93 Difference]: Finished difference Result 1707 states and 2241 transitions. [2021-11-19 15:08:00,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:08:00,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 133 [2021-11-19 15:08:00,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:00,951 INFO L225 Difference]: With dead ends: 1707 [2021-11-19 15:08:00,951 INFO L226 Difference]: Without dead ends: 1705 [2021-11-19 15:08:00,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:08:00,953 INFO L933 BasicCegarLoop]: 2215 mSDtfsCounter, 2101 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 6641 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 15:08:00,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2103 Valid, 6641 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:08:00,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2021-11-19 15:08:01,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1705. [2021-11-19 15:08:01,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1147 states have (on average 1.2144725370531821) internal successors, (1393), 1202 states have internal predecessors, (1393), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:08:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2239 transitions. [2021-11-19 15:08:01,161 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2239 transitions. Word has length 133 [2021-11-19 15:08:01,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:01,162 INFO L470 AbstractCegarLoop]: Abstraction has 1705 states and 2239 transitions. [2021-11-19 15:08:01,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 15:08:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2239 transitions. [2021-11-19 15:08:01,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-19 15:08:01,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:01,165 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:08:01,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:01,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:01,389 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:01,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1388072590, now seen corresponding path program 1 times [2021-11-19 15:08:01,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:01,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117573017] [2021-11-19 15:08:01,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:01,391 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:01,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:01,392 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:01,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 15:08:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:02,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:08:02,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:04,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:05,405 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:05,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117573017] [2021-11-19 15:08:05,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117573017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:05,405 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:05,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:08:05,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702499423] [2021-11-19 15:08:05,405 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:05,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:08:05,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:05,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:08:05,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:08:05,407 INFO L87 Difference]: Start difference. First operand 1705 states and 2239 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 15:08:05,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:05,645 INFO L93 Difference]: Finished difference Result 1705 states and 2239 transitions. [2021-11-19 15:08:05,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:08:05,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 139 [2021-11-19 15:08:05,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:05,651 INFO L225 Difference]: With dead ends: 1705 [2021-11-19 15:08:05,651 INFO L226 Difference]: Without dead ends: 1703 [2021-11-19 15:08:05,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:08:05,653 INFO L933 BasicCegarLoop]: 2213 mSDtfsCounter, 2096 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 4424 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 15:08:05,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2098 Valid, 4424 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:08:05,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-11-19 15:08:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1703. [2021-11-19 15:08:05,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1146 states have (on average 1.2137870855148343) internal successors, (1391), 1200 states have internal predecessors, (1391), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:08:05,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2237 transitions. [2021-11-19 15:08:05,833 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2237 transitions. Word has length 139 [2021-11-19 15:08:05,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:05,834 INFO L470 AbstractCegarLoop]: Abstraction has 1703 states and 2237 transitions. [2021-11-19 15:08:05,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 15:08:05,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2237 transitions. [2021-11-19 15:08:05,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-19 15:08:05,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:05,836 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-19 15:08:05,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:06,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:06,059 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:06,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:06,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1236112233, now seen corresponding path program 1 times [2021-11-19 15:08:06,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:06,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740219260] [2021-11-19 15:08:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:06,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:06,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:06,062 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:06,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 15:08:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:07,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:08:07,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-19 15:08:10,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-19 15:08:11,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:11,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740219260] [2021-11-19 15:08:11,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740219260] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:11,638 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:11,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 15:08:11,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060187175] [2021-11-19 15:08:11,639 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:11,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:08:11,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:08:11,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:08:11,644 INFO L87 Difference]: Start difference. First operand 1703 states and 2237 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-19 15:08:13,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:13,457 INFO L93 Difference]: Finished difference Result 3344 states and 4448 transitions. [2021-11-19 15:08:13,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:08:13,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 183 [2021-11-19 15:08:13,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:13,464 INFO L225 Difference]: With dead ends: 3344 [2021-11-19 15:08:13,464 INFO L226 Difference]: Without dead ends: 1699 [2021-11-19 15:08:13,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:08:13,473 INFO L933 BasicCegarLoop]: 2208 mSDtfsCounter, 3463 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 818 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3463 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 818 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:08:13,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3463 Valid, 2208 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [818 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-19 15:08:13,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2021-11-19 15:08:13,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2021-11-19 15:08:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1143 states have (on average 1.2125984251968505) internal successors, (1386), 1196 states have internal predecessors, (1386), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:08:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2232 transitions. [2021-11-19 15:08:13,670 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2232 transitions. Word has length 183 [2021-11-19 15:08:13,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:13,671 INFO L470 AbstractCegarLoop]: Abstraction has 1699 states and 2232 transitions. [2021-11-19 15:08:13,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-19 15:08:13,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2232 transitions. [2021-11-19 15:08:13,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-19 15:08:13,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:13,674 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:08:13,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:13,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:13,899 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:13,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:13,899 INFO L85 PathProgramCache]: Analyzing trace with hash 747551330, now seen corresponding path program 1 times [2021-11-19 15:08:13,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:13,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105486551] [2021-11-19 15:08:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:13,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:13,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:13,901 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:13,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 15:08:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:14,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:08:14,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:17,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:17,880 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:17,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105486551] [2021-11-19 15:08:17,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105486551] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:17,880 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:17,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:08:17,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248162055] [2021-11-19 15:08:17,881 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:17,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:08:17,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:17,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:08:17,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:08:17,883 INFO L87 Difference]: Start difference. First operand 1699 states and 2232 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 15:08:18,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:18,123 INFO L93 Difference]: Finished difference Result 1699 states and 2232 transitions. [2021-11-19 15:08:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:08:18,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 145 [2021-11-19 15:08:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:18,132 INFO L225 Difference]: With dead ends: 1699 [2021-11-19 15:08:18,133 INFO L226 Difference]: Without dead ends: 1697 [2021-11-19 15:08:18,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:08:18,135 INFO L933 BasicCegarLoop]: 2206 mSDtfsCounter, 2080 mSDsluCounter, 4408 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2082 SdHoareTripleChecker+Valid, 6614 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 15:08:18,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2082 Valid, 6614 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:08:18,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2021-11-19 15:08:18,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1697. [2021-11-19 15:08:18,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1142 states have (on average 1.2119089316987741) internal successors, (1384), 1194 states have internal predecessors, (1384), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:08:18,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2230 transitions. [2021-11-19 15:08:18,385 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2230 transitions. Word has length 145 [2021-11-19 15:08:18,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:18,385 INFO L470 AbstractCegarLoop]: Abstraction has 1697 states and 2230 transitions. [2021-11-19 15:08:18,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 15:08:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2230 transitions. [2021-11-19 15:08:18,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-19 15:08:18,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:18,388 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:08:18,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:18,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:18,611 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:18,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:18,611 INFO L85 PathProgramCache]: Analyzing trace with hash 918827982, now seen corresponding path program 1 times [2021-11-19 15:08:18,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:18,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700187628] [2021-11-19 15:08:18,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:18,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:18,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:18,613 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:18,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 15:08:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:19,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:08:19,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:21,725 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:21,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:23,381 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:23,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700187628] [2021-11-19 15:08:23,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700187628] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:23,382 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:23,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 15:08:23,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245716172] [2021-11-19 15:08:23,382 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:23,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:08:23,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:23,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:08:23,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:08:23,384 INFO L87 Difference]: Start difference. First operand 1697 states and 2230 transitions. Second operand has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-19 15:08:25,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:25,259 INFO L93 Difference]: Finished difference Result 1697 states and 2230 transitions. [2021-11-19 15:08:25,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:08:25,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 151 [2021-11-19 15:08:25,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:25,265 INFO L225 Difference]: With dead ends: 1697 [2021-11-19 15:08:25,265 INFO L226 Difference]: Without dead ends: 1695 [2021-11-19 15:08:25,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:08:25,266 INFO L933 BasicCegarLoop]: 2204 mSDtfsCounter, 3423 mSDsluCounter, 2202 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3425 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 813 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:08:25,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3425 Valid, 4406 Invalid, 815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [813 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-19 15:08:25,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2021-11-19 15:08:25,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2021-11-19 15:08:25,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1141 states have (on average 1.2112182296231375) internal successors, (1382), 1192 states have internal predecessors, (1382), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:08:25,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2228 transitions. [2021-11-19 15:08:25,518 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2228 transitions. Word has length 151 [2021-11-19 15:08:25,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:25,519 INFO L470 AbstractCegarLoop]: Abstraction has 1695 states and 2228 transitions. [2021-11-19 15:08:25,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-19 15:08:25,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2228 transitions. [2021-11-19 15:08:25,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-19 15:08:25,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:25,528 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:08:25,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:25,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:25,745 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:25,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:25,746 INFO L85 PathProgramCache]: Analyzing trace with hash -2039593308, now seen corresponding path program 1 times [2021-11-19 15:08:25,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:25,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021663745] [2021-11-19 15:08:25,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:25,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:25,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:25,749 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:25,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 15:08:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:27,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:08:27,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:29,195 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:29,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:30,102 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:30,103 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:30,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021663745] [2021-11-19 15:08:30,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021663745] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:30,103 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:30,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:08:30,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836709217] [2021-11-19 15:08:30,104 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:30,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:08:30,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:30,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:08:30,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:08:30,106 INFO L87 Difference]: Start difference. First operand 1695 states and 2228 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 15:08:30,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:30,445 INFO L93 Difference]: Finished difference Result 1695 states and 2228 transitions. [2021-11-19 15:08:30,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:08:30,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 157 [2021-11-19 15:08:30,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:30,451 INFO L225 Difference]: With dead ends: 1695 [2021-11-19 15:08:30,451 INFO L226 Difference]: Without dead ends: 1693 [2021-11-19 15:08:30,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:08:30,453 INFO L933 BasicCegarLoop]: 2202 mSDtfsCounter, 2064 mSDsluCounter, 4400 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 6602 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 15:08:30,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2066 Valid, 6602 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:08:30,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2021-11-19 15:08:30,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1693. [2021-11-19 15:08:30,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1140 states have (on average 1.2105263157894737) internal successors, (1380), 1190 states have internal predecessors, (1380), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:08:30,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2226 transitions. [2021-11-19 15:08:30,719 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2226 transitions. Word has length 157 [2021-11-19 15:08:30,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:30,720 INFO L470 AbstractCegarLoop]: Abstraction has 1693 states and 2226 transitions. [2021-11-19 15:08:30,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 15:08:30,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2226 transitions. [2021-11-19 15:08:30,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-19 15:08:30,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:30,723 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:08:30,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:30,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:30,947 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:30,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:30,947 INFO L85 PathProgramCache]: Analyzing trace with hash 521793853, now seen corresponding path program 1 times [2021-11-19 15:08:30,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:30,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296483189] [2021-11-19 15:08:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:30,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:30,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:30,951 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:30,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 15:08:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:32,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:08:32,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:34,264 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:34,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:35,189 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:35,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296483189] [2021-11-19 15:08:35,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296483189] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:35,189 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:35,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:08:35,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331487577] [2021-11-19 15:08:35,189 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:35,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:08:35,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:35,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:08:35,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:08:35,192 INFO L87 Difference]: Start difference. First operand 1693 states and 2226 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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 15:08:35,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:35,428 INFO L93 Difference]: Finished difference Result 1693 states and 2226 transitions. [2021-11-19 15:08:35,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:08:35,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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 163 [2021-11-19 15:08:35,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:35,435 INFO L225 Difference]: With dead ends: 1693 [2021-11-19 15:08:35,435 INFO L226 Difference]: Without dead ends: 1691 [2021-11-19 15:08:35,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:08:35,437 INFO L933 BasicCegarLoop]: 2200 mSDtfsCounter, 2059 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 4398 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 15:08:35,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2061 Valid, 4398 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:08:35,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2021-11-19 15:08:35,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1691. [2021-11-19 15:08:35,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1139 states have (on average 1.2098331870061458) internal successors, (1378), 1188 states have internal predecessors, (1378), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:08:35,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2224 transitions. [2021-11-19 15:08:35,688 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2224 transitions. Word has length 163 [2021-11-19 15:08:35,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:35,689 INFO L470 AbstractCegarLoop]: Abstraction has 1691 states and 2224 transitions. [2021-11-19 15:08:35,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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 15:08:35,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2224 transitions. [2021-11-19 15:08:35,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-19 15:08:35,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:35,692 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:35,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:35,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:35,915 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:35,915 INFO L85 PathProgramCache]: Analyzing trace with hash -983218419, now seen corresponding path program 1 times [2021-11-19 15:08:35,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:35,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844168652] [2021-11-19 15:08:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:35,916 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:35,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:35,917 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:35,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 15:08:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:36,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:08:36,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:39,471 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:39,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:40,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:40,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844168652] [2021-11-19 15:08:40,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844168652] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:40,610 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:40,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:08:40,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249141501] [2021-11-19 15:08:40,611 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:40,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:08:40,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:40,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:08:40,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:08:40,613 INFO L87 Difference]: Start difference. First operand 1691 states and 2224 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 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 15:08:40,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:40,888 INFO L93 Difference]: Finished difference Result 1691 states and 2224 transitions. [2021-11-19 15:08:40,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:08:40,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 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 169 [2021-11-19 15:08:40,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:40,895 INFO L225 Difference]: With dead ends: 1691 [2021-11-19 15:08:40,896 INFO L226 Difference]: Without dead ends: 1689 [2021-11-19 15:08:40,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:08:40,897 INFO L933 BasicCegarLoop]: 2198 mSDtfsCounter, 2048 mSDsluCounter, 4392 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 6590 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 15:08:40,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2050 Valid, 6590 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:08:40,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2021-11-19 15:08:41,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1689. [2021-11-19 15:08:41,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1138 states have (on average 1.2091388400702987) internal successors, (1376), 1186 states have internal predecessors, (1376), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:08:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2222 transitions. [2021-11-19 15:08:41,175 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2222 transitions. Word has length 169 [2021-11-19 15:08:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:41,176 INFO L470 AbstractCegarLoop]: Abstraction has 1689 states and 2222 transitions. [2021-11-19 15:08:41,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 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 15:08:41,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2222 transitions. [2021-11-19 15:08:41,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-19 15:08:41,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:41,180 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:08:41,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:41,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:41,395 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:41,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:41,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1786064717, now seen corresponding path program 1 times [2021-11-19 15:08:41,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:41,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937675868] [2021-11-19 15:08:41,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:41,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:41,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:41,399 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:41,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 15:08:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:43,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:08:43,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-19 15:08:44,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:45,600 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2021-11-19 15:08:45,600 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:45,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937675868] [2021-11-19 15:08:45,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937675868] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:45,600 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:45,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:08:45,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478273501] [2021-11-19 15:08:45,601 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:45,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:08:45,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:45,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:08:45,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:08:45,602 INFO L87 Difference]: Start difference. First operand 1689 states and 2222 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-19 15:08:47,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:47,926 INFO L93 Difference]: Finished difference Result 3203 states and 4190 transitions. [2021-11-19 15:08:47,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:08:47,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 214 [2021-11-19 15:08:47,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:47,940 INFO L225 Difference]: With dead ends: 3203 [2021-11-19 15:08:47,941 INFO L226 Difference]: Without dead ends: 1685 [2021-11-19 15:08:47,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:08:47,949 INFO L933 BasicCegarLoop]: 2194 mSDtfsCounter, 3475 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3475 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 834 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:08:47,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3475 Valid, 2194 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [834 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 15:08:47,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2021-11-19 15:08:48,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1685. [2021-11-19 15:08:48,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1135 states have (on average 1.2079295154185021) internal successors, (1371), 1182 states have internal predecessors, (1371), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2021-11-19 15:08:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2217 transitions. [2021-11-19 15:08:48,254 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2217 transitions. Word has length 214 [2021-11-19 15:08:48,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:48,255 INFO L470 AbstractCegarLoop]: Abstraction has 1685 states and 2217 transitions. [2021-11-19 15:08:48,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-19 15:08:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2217 transitions. [2021-11-19 15:08:48,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-19 15:08:48,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:48,258 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:48,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:48,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:48,475 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:48,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:48,475 INFO L85 PathProgramCache]: Analyzing trace with hash 764453388, now seen corresponding path program 1 times [2021-11-19 15:08:48,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:48,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32249830] [2021-11-19 15:08:48,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:48,477 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:48,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:48,479 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:48,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 15:08:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:49,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:08:49,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:51,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:08:53,077 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:53,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32249830] [2021-11-19 15:08:53,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32249830] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:53,078 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:53,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:08:53,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137021341] [2021-11-19 15:08:53,078 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:53,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:08:53,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:53,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:08:53,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:08:53,080 INFO L87 Difference]: Start difference. First operand 1685 states and 2217 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 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 15:08:53,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:53,709 INFO L93 Difference]: Finished difference Result 3269 states and 4311 transitions. [2021-11-19 15:08:53,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:08:53,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 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 175 [2021-11-19 15:08:53,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:53,731 INFO L225 Difference]: With dead ends: 3269 [2021-11-19 15:08:53,731 INFO L226 Difference]: Without dead ends: 3267 [2021-11-19 15:08:53,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:08:53,734 INFO L933 BasicCegarLoop]: 2604 mSDtfsCounter, 2038 mSDsluCounter, 4693 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 7297 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:08:53,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2040 Valid, 7297 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:08:53,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2021-11-19 15:08:54,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 3232. [2021-11-19 15:08:54,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 2177 states have (on average 1.2085438677078548) internal successors, (2631), 2260 states have internal predecessors, (2631), 817 states have call successors, (817), 227 states have call predecessors, (817), 226 states have return successors, (834), 785 states have call predecessors, (834), 815 states have call successors, (834) [2021-11-19 15:08:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 4282 transitions. [2021-11-19 15:08:54,413 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 4282 transitions. Word has length 175 [2021-11-19 15:08:54,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:54,414 INFO L470 AbstractCegarLoop]: Abstraction has 3232 states and 4282 transitions. [2021-11-19 15:08:54,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 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 15:08:54,414 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 4282 transitions. [2021-11-19 15:08:54,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-19 15:08:54,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:54,417 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:08:54,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:54,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:54,618 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:54,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:54,618 INFO L85 PathProgramCache]: Analyzing trace with hash 625531932, now seen corresponding path program 1 times [2021-11-19 15:08:54,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:54,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265851639] [2021-11-19 15:08:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:54,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:54,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:54,621 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:54,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 15:08:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:08:56,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:08:56,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:08:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-19 15:08:57,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:58,314 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-19 15:08:58,314 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:08:58,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265851639] [2021-11-19 15:08:58,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265851639] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:08:58,315 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:08:58,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:08:58,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417954617] [2021-11-19 15:08:58,315 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:08:58,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:08:58,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:08:58,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:08:58,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:08:58,317 INFO L87 Difference]: Start difference. First operand 3232 states and 4282 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-19 15:08:58,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:08:58,852 INFO L93 Difference]: Finished difference Result 6222 states and 8197 transitions. [2021-11-19 15:08:58,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:08:58,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 220 [2021-11-19 15:08:58,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:08:58,869 INFO L225 Difference]: With dead ends: 6222 [2021-11-19 15:08:58,869 INFO L226 Difference]: Without dead ends: 3237 [2021-11-19 15:08:58,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:08:58,884 INFO L933 BasicCegarLoop]: 2204 mSDtfsCounter, 2150 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2150 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:08:58,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2150 Valid, 2248 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:08:58,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2021-11-19 15:08:59,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 3236. [2021-11-19 15:08:59,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3236 states, 2179 states have (on average 1.2065167508031207) internal successors, (2629), 2261 states have internal predecessors, (2629), 817 states have call successors, (817), 230 states have call predecessors, (817), 229 states have return successors, (834), 785 states have call predecessors, (834), 815 states have call successors, (834) [2021-11-19 15:08:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3236 states to 3236 states and 4280 transitions. [2021-11-19 15:08:59,334 INFO L78 Accepts]: Start accepts. Automaton has 3236 states and 4280 transitions. Word has length 220 [2021-11-19 15:08:59,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:08:59,336 INFO L470 AbstractCegarLoop]: Abstraction has 3236 states and 4280 transitions. [2021-11-19 15:08:59,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-19 15:08:59,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3236 states and 4280 transitions. [2021-11-19 15:08:59,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-19 15:08:59,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:08:59,339 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:59,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-19 15:08:59,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:08:59,542 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:08:59,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:08:59,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1666059614, now seen corresponding path program 1 times [2021-11-19 15:08:59,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:08:59,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62475501] [2021-11-19 15:08:59,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:08:59,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:08:59,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:08:59,545 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:08:59,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 15:09:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:09:00,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:09:00,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:09:03,236 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:09:03,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:09:04,265 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:09:04,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:09:04,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62475501] [2021-11-19 15:09:04,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62475501] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:09:04,266 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:09:04,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:09:04,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967153379] [2021-11-19 15:09:04,267 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:09:04,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:09:04,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:09:04,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:09:04,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:09:04,268 INFO L87 Difference]: Start difference. First operand 3236 states and 4280 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 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 15:09:04,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:09:04,727 INFO L93 Difference]: Finished difference Result 3236 states and 4280 transitions. [2021-11-19 15:09:04,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:09:04,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 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 181 [2021-11-19 15:09:04,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:09:04,738 INFO L225 Difference]: With dead ends: 3236 [2021-11-19 15:09:04,738 INFO L226 Difference]: Without dead ends: 3234 [2021-11-19 15:09:04,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:09:04,740 INFO L933 BasicCegarLoop]: 2186 mSDtfsCounter, 2024 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2026 SdHoareTripleChecker+Valid, 6554 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 15:09:04,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2026 Valid, 6554 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:09:04,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2021-11-19 15:09:05,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 3234. [2021-11-19 15:09:05,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 2178 states have (on average 1.2061524334251608) internal successors, (2627), 2259 states have internal predecessors, (2627), 817 states have call successors, (817), 230 states have call predecessors, (817), 229 states have return successors, (834), 785 states have call predecessors, (834), 815 states have call successors, (834) [2021-11-19 15:09:05,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 4278 transitions. [2021-11-19 15:09:05,499 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 4278 transitions. Word has length 181 [2021-11-19 15:09:05,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:09:05,500 INFO L470 AbstractCegarLoop]: Abstraction has 3234 states and 4278 transitions. [2021-11-19 15:09:05,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 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 15:09:05,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 4278 transitions. [2021-11-19 15:09:05,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-19 15:09:05,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:09:05,504 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:05,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-19 15:09:05,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:09:05,723 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:09:05,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:09:05,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1758806490, now seen corresponding path program 1 times [2021-11-19 15:09:05,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:09:05,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770634628] [2021-11-19 15:09:05,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:09:05,726 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:09:05,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:09:05,727 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:09:05,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 15:09:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:09:06,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:09:06,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:09:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:09:09,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:09:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 15:09:10,774 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:09:10,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770634628] [2021-11-19 15:09:10,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770634628] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:09:10,775 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:09:10,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 15:09:10,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955716556] [2021-11-19 15:09:10,775 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:09:10,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:09:10,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:09:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:09:10,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:09:10,777 INFO L87 Difference]: Start difference. First operand 3234 states and 4278 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-19 15:09:11,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:09:11,779 INFO L93 Difference]: Finished difference Result 6357 states and 8468 transitions. [2021-11-19 15:09:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:09:11,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 187 [2021-11-19 15:09:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:09:11,803 INFO L225 Difference]: With dead ends: 6357 [2021-11-19 15:09:11,803 INFO L226 Difference]: Without dead ends: 6147 [2021-11-19 15:09:11,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:09:11,808 INFO L933 BasicCegarLoop]: 2588 mSDtfsCounter, 2013 mSDsluCounter, 4672 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 7260 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:09:11,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2013 Valid, 7260 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:09:11,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6147 states. [2021-11-19 15:09:13,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6147 to 6125. [2021-11-19 15:09:13,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6125 states, 4131 states have (on average 1.2115710481723554) internal successors, (5005), 4280 states have internal predecessors, (5005), 1555 states have call successors, (1555), 431 states have call predecessors, (1555), 429 states have return successors, (1650), 1493 states have call predecessors, (1650), 1551 states have call successors, (1650) [2021-11-19 15:09:13,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6125 states to 6125 states and 8210 transitions. [2021-11-19 15:09:13,120 INFO L78 Accepts]: Start accepts. Automaton has 6125 states and 8210 transitions. Word has length 187 [2021-11-19 15:09:13,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:09:13,120 INFO L470 AbstractCegarLoop]: Abstraction has 6125 states and 8210 transitions. [2021-11-19 15:09:13,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-19 15:09:13,121 INFO L276 IsEmpty]: Start isEmpty. Operand 6125 states and 8210 transitions. [2021-11-19 15:09:13,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-11-19 15:09:13,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:09:13,124 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:09:13,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-19 15:09:13,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:09:13,326 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:09:13,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:09:13,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1352637752, now seen corresponding path program 1 times [2021-11-19 15:09:13,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:09:13,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128772348] [2021-11-19 15:09:13,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:09:13,329 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:09:13,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:09:13,330 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:09:13,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-19 15:09:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:09:15,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:09:15,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:09:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-19 15:09:16,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:09:20,732 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-19 15:09:20,732 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:09:20,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128772348] [2021-11-19 15:09:20,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128772348] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:09:20,733 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:09:20,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-19 15:09:20,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374072640] [2021-11-19 15:09:20,733 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:09:20,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 15:09:20,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:09:20,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 15:09:20,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-19 15:09:20,735 INFO L87 Difference]: Start difference. First operand 6125 states and 8210 transitions. Second operand has 18 states, 18 states have (on average 5.666666666666667) internal successors, (102), 14 states have internal predecessors, (102), 4 states have call successors, (36), 2 states have call predecessors, (36), 6 states have return successors, (32), 8 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-19 15:09:24,499 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 15:09:25,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:09:28,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:09:28,413 INFO L93 Difference]: Finished difference Result 14344 states and 19596 transitions. [2021-11-19 15:09:28,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 15:09:28,414 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.666666666666667) internal successors, (102), 14 states have internal predecessors, (102), 4 states have call successors, (36), 2 states have call predecessors, (36), 6 states have return successors, (32), 8 states have call predecessors, (32), 4 states have call successors, (32) Word has length 239 [2021-11-19 15:09:28,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:09:28,453 INFO L225 Difference]: With dead ends: 14344 [2021-11-19 15:09:28,454 INFO L226 Difference]: Without dead ends: 8259 [2021-11-19 15:09:28,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2021-11-19 15:09:28,486 INFO L933 BasicCegarLoop]: 2434 mSDtfsCounter, 402 mSDsluCounter, 28675 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 31109 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:09:28,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [661 Valid, 31109 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 240 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2021-11-19 15:09:28,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8259 states. [2021-11-19 15:09:29,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8259 to 6137. [2021-11-19 15:09:29,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6137 states, 4140 states have (on average 1.211111111111111) internal successors, (5014), 4289 states have internal predecessors, (5014), 1556 states have call successors, (1556), 431 states have call predecessors, (1556), 431 states have return successors, (1657), 1496 states have call predecessors, (1657), 1552 states have call successors, (1657) [2021-11-19 15:09:29,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 8227 transitions. [2021-11-19 15:09:29,712 INFO L78 Accepts]: Start accepts. Automaton has 6137 states and 8227 transitions. Word has length 239 [2021-11-19 15:09:29,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:09:29,713 INFO L470 AbstractCegarLoop]: Abstraction has 6137 states and 8227 transitions. [2021-11-19 15:09:29,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.666666666666667) internal successors, (102), 14 states have internal predecessors, (102), 4 states have call successors, (36), 2 states have call predecessors, (36), 6 states have return successors, (32), 8 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-19 15:09:29,714 INFO L276 IsEmpty]: Start isEmpty. Operand 6137 states and 8227 transitions. [2021-11-19 15:09:29,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-19 15:09:29,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:09:29,717 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:29,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2021-11-19 15:09:29,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:09:29,931 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:09:29,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:09:29,931 INFO L85 PathProgramCache]: Analyzing trace with hash -233704877, now seen corresponding path program 1 times [2021-11-19 15:09:29,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:09:29,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908826476] [2021-11-19 15:09:29,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:09:29,933 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:09:29,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:09:29,934 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:09:29,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 15:09:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:09:31,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 15:09:31,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:09:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-19 15:09:34,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:09:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-19 15:09:38,538 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:09:38,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908826476] [2021-11-19 15:09:38,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908826476] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:09:38,538 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:09:38,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 27 [2021-11-19 15:09:38,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467324770] [2021-11-19 15:09:38,539 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:09:38,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-19 15:09:38,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:09:38,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-19 15:09:38,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-11-19 15:09:38,542 INFO L87 Difference]: Start difference. First operand 6137 states and 8227 transitions. Second operand has 27 states, 25 states have (on average 5.28) internal successors, (132), 25 states have internal predecessors, (132), 12 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) [2021-11-19 15:09:49,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:09:49,105 INFO L93 Difference]: Finished difference Result 13806 states and 18767 transitions. [2021-11-19 15:09:49,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 15:09:49,105 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 5.28) internal successors, (132), 25 states have internal predecessors, (132), 12 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) Word has length 280 [2021-11-19 15:09:49,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:09:49,144 INFO L225 Difference]: With dead ends: 13806 [2021-11-19 15:09:49,144 INFO L226 Difference]: Without dead ends: 8089 [2021-11-19 15:09:49,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=194, Invalid=1138, Unknown=0, NotChecked=0, Total=1332 [2021-11-19 15:09:49,171 INFO L933 BasicCegarLoop]: 2382 mSDtfsCounter, 3261 mSDsluCounter, 36661 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 2230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3424 SdHoareTripleChecker+Valid, 39043 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2230 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-19 15:09:49,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3424 Valid, 39043 Invalid, 2972 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2230 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-11-19 15:09:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2021-11-19 15:09:50,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 6201. [2021-11-19 15:09:50,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6201 states, 4184 states have (on average 1.2088910133843211) internal successors, (5058), 4333 states have internal predecessors, (5058), 1576 states have call successors, (1576), 431 states have call predecessors, (1576), 431 states have return successors, (1677), 1516 states have call predecessors, (1677), 1572 states have call successors, (1677) [2021-11-19 15:09:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6201 states to 6201 states and 8311 transitions. [2021-11-19 15:09:50,649 INFO L78 Accepts]: Start accepts. Automaton has 6201 states and 8311 transitions. Word has length 280 [2021-11-19 15:09:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:09:50,650 INFO L470 AbstractCegarLoop]: Abstraction has 6201 states and 8311 transitions. [2021-11-19 15:09:50,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 5.28) internal successors, (132), 25 states have internal predecessors, (132), 12 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) [2021-11-19 15:09:50,651 INFO L276 IsEmpty]: Start isEmpty. Operand 6201 states and 8311 transitions. [2021-11-19 15:09:50,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2021-11-19 15:09:50,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:09:50,654 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:09:50,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-19 15:09:50,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:09:50,855 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:09:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:09:50,855 INFO L85 PathProgramCache]: Analyzing trace with hash 32811465, now seen corresponding path program 1 times [2021-11-19 15:09:50,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:09:50,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032487891] [2021-11-19 15:09:50,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:09:50,857 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:09:50,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:09:50,858 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:09:50,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-19 15:09:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:09:53,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-19 15:09:53,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:09:56,036 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 55 proven. 3 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-11-19 15:09:56,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 55 proven. 3 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-11-19 15:10:00,608 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:10:00,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032487891] [2021-11-19 15:10:00,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032487891] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:10:00,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [464603964] [2021-11-19 15:10:00,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:00,609 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:10:00,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:10:00,611 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:10:00,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2021-11-19 15:10:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:02,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:10:02,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:03,385 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2021-11-19 15:10:03,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:04,216 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2021-11-19 15:10:04,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [464603964] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:10:04,217 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 15:10:04,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [13, 13] total 17 [2021-11-19 15:10:04,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538893972] [2021-11-19 15:10:04,217 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:10:04,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:10:04,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:10:04,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:10:04,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:10:04,219 INFO L87 Difference]: Start difference. First operand 6201 states and 8311 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, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2021-11-19 15:10:05,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:10:05,600 INFO L93 Difference]: Finished difference Result 11914 states and 16044 transitions. [2021-11-19 15:10:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:10:05,601 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, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 340 [2021-11-19 15:10:05,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:10:05,624 INFO L225 Difference]: With dead ends: 11914 [2021-11-19 15:10:05,624 INFO L226 Difference]: Without dead ends: 6229 [2021-11-19 15:10:05,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1358 GetRequests, 1341 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-11-19 15:10:05,647 INFO L933 BasicCegarLoop]: 2180 mSDtfsCounter, 10 mSDsluCounter, 6537 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8717 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:10:05,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 8717 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:10:05,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6229 states. [2021-11-19 15:10:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6229 to 6219. [2021-11-19 15:10:07,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6219 states, 4199 states have (on average 1.2081447963800904) internal successors, (5073), 4351 states have internal predecessors, (5073), 1576 states have call successors, (1576), 431 states have call predecessors, (1576), 434 states have return successors, (1680), 1516 states have call predecessors, (1680), 1572 states have call successors, (1680) [2021-11-19 15:10:07,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6219 states to 6219 states and 8329 transitions. [2021-11-19 15:10:07,040 INFO L78 Accepts]: Start accepts. Automaton has 6219 states and 8329 transitions. Word has length 340 [2021-11-19 15:10:07,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:10:07,041 INFO L470 AbstractCegarLoop]: Abstraction has 6219 states and 8329 transitions. [2021-11-19 15:10:07,041 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, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2021-11-19 15:10:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6219 states and 8329 transitions. [2021-11-19 15:10:07,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-11-19 15:10:07,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:10:07,046 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 15:10:07,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2021-11-19 15:10:07,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-19 15:10:07,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:10:07,468 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:10:07,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:10:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1503579416, now seen corresponding path program 1 times [2021-11-19 15:10:07,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:10:07,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986826090] [2021-11-19 15:10:07,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:07,470 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:10:07,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:10:07,472 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:10:07,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-19 15:10:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:09,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 15:10:09,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:10,610 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-11-19 15:10:10,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-11-19 15:10:12,123 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:10:12,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986826090] [2021-11-19 15:10:12,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986826090] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:10:12,124 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:10:12,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 15:10:12,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112078608] [2021-11-19 15:10:12,124 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:10:12,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 15:10:12,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:10:12,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 15:10:12,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:10:12,126 INFO L87 Difference]: Start difference. First operand 6219 states and 8329 transitions. Second operand has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 6 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-19 15:10:13,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:10:13,836 INFO L93 Difference]: Finished difference Result 10630 states and 14044 transitions. [2021-11-19 15:10:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:10:13,838 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 6 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 319 [2021-11-19 15:10:13,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:10:13,859 INFO L225 Difference]: With dead ends: 10630 [2021-11-19 15:10:13,859 INFO L226 Difference]: Without dead ends: 4927 [2021-11-19 15:10:13,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:10:13,884 INFO L933 BasicCegarLoop]: 1717 mSDtfsCounter, 37 mSDsluCounter, 13649 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 15366 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:10:13,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 15366 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 15:10:13,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2021-11-19 15:10:14,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4921. [2021-11-19 15:10:14,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4921 states, 3260 states have (on average 1.1822085889570553) internal successors, (3854), 3377 states have internal predecessors, (3854), 1276 states have call successors, (1276), 375 states have call predecessors, (1276), 375 states have return successors, (1286), 1240 states have call predecessors, (1286), 1272 states have call successors, (1286) [2021-11-19 15:10:14,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4921 states to 4921 states and 6416 transitions. [2021-11-19 15:10:15,001 INFO L78 Accepts]: Start accepts. Automaton has 4921 states and 6416 transitions. Word has length 319 [2021-11-19 15:10:15,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:10:15,001 INFO L470 AbstractCegarLoop]: Abstraction has 4921 states and 6416 transitions. [2021-11-19 15:10:15,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 6 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-19 15:10:15,001 INFO L276 IsEmpty]: Start isEmpty. Operand 4921 states and 6416 transitions. [2021-11-19 15:10:15,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2021-11-19 15:10:15,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:10:15,008 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:10:15,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-19 15:10:15,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:10:15,221 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:10:15,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:10:15,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1348423461, now seen corresponding path program 1 times [2021-11-19 15:10:15,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:10:15,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751110371] [2021-11-19 15:10:15,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:15,224 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:10:15,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:10:15,224 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:10:15,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 15:10:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:17,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 1677 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 15:10:17,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:23,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2021-11-19 15:10:23,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2021-11-19 15:10:25,743 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:10:25,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751110371] [2021-11-19 15:10:25,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751110371] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:10:25,743 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:10:25,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 15:10:25,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161159653] [2021-11-19 15:10:25,744 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:10:25,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:10:25,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:10:25,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:10:25,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:10:25,746 INFO L87 Difference]: Start difference. First operand 4921 states and 6416 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (97), 4 states have call predecessors, (97), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2021-11-19 15:10:27,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:10:27,288 INFO L93 Difference]: Finished difference Result 8494 states and 11032 transitions. [2021-11-19 15:10:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:10:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (97), 4 states have call predecessors, (97), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) Word has length 399 [2021-11-19 15:10:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:10:27,321 INFO L225 Difference]: With dead ends: 8494 [2021-11-19 15:10:27,321 INFO L226 Difference]: Without dead ends: 8492 [2021-11-19 15:10:27,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 791 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:10:27,326 INFO L933 BasicCegarLoop]: 2138 mSDtfsCounter, 1522 mSDsluCounter, 7612 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 9750 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:10:27,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1523 Valid, 9750 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:10:27,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8492 states. [2021-11-19 15:10:28,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8492 to 8441. [2021-11-19 15:10:28,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8441 states, 5627 states have (on average 1.1855340323440555) internal successors, (6671), 5830 states have internal predecessors, (6671), 2129 states have call successors, (2129), 679 states have call predecessors, (2129), 675 states have return successors, (2179), 2050 states have call predecessors, (2179), 2125 states have call successors, (2179) [2021-11-19 15:10:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8441 states to 8441 states and 10979 transitions. [2021-11-19 15:10:29,000 INFO L78 Accepts]: Start accepts. Automaton has 8441 states and 10979 transitions. Word has length 399 [2021-11-19 15:10:29,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:10:29,001 INFO L470 AbstractCegarLoop]: Abstraction has 8441 states and 10979 transitions. [2021-11-19 15:10:29,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (97), 4 states have call predecessors, (97), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2021-11-19 15:10:29,001 INFO L276 IsEmpty]: Start isEmpty. Operand 8441 states and 10979 transitions. [2021-11-19 15:10:29,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-11-19 15:10:29,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:10:29,010 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:10:29,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-19 15:10:29,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:10:29,235 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:10:29,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:10:29,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1757670721, now seen corresponding path program 1 times [2021-11-19 15:10:29,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:10:29,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956119762] [2021-11-19 15:10:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:29,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:10:29,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:10:29,239 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:10:29,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-19 15:10:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:31,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 1990 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-19 15:10:31,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 219 proven. 3 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2021-11-19 15:10:34,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:39,455 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 55 proven. 9 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-19 15:10:39,455 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:10:39,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956119762] [2021-11-19 15:10:39,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956119762] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:10:39,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1261455257] [2021-11-19 15:10:39,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:39,456 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:10:39,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:10:39,457 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:10:39,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2021-11-19 15:10:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:41,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 1990 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:10:41,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2021-11-19 15:10:46,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:10:48,577 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked. [2021-11-19 15:10:48,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1261455257] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:10:48,578 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 15:10:48,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [13, 13] total 15 [2021-11-19 15:10:48,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603827496] [2021-11-19 15:10:48,579 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:10:48,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:10:48,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:10:48,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:10:48,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2021-11-19 15:10:48,581 INFO L87 Difference]: Start difference. First operand 8441 states and 10979 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 3 states have call successors, (108), 3 states have call predecessors, (108), 3 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) [2021-11-19 15:10:49,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:10:49,794 INFO L93 Difference]: Finished difference Result 16802 states and 21843 transitions. [2021-11-19 15:10:49,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:10:49,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 3 states have call successors, (108), 3 states have call predecessors, (108), 3 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) Word has length 440 [2021-11-19 15:10:49,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:10:49,829 INFO L225 Difference]: With dead ends: 16802 [2021-11-19 15:10:49,829 INFO L226 Difference]: Without dead ends: 8441 [2021-11-19 15:10:49,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1756 GetRequests, 1743 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2021-11-19 15:10:49,857 INFO L933 BasicCegarLoop]: 1727 mSDtfsCounter, 1578 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 1727 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 15:10:49,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1578 Valid, 1727 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:10:49,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8441 states. [2021-11-19 15:10:51,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8441 to 8441. [2021-11-19 15:10:51,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8441 states, 5627 states have (on average 1.1853563177536877) internal successors, (6670), 5830 states have internal predecessors, (6670), 2129 states have call successors, (2129), 679 states have call predecessors, (2129), 675 states have return successors, (2179), 2050 states have call predecessors, (2179), 2125 states have call successors, (2179) [2021-11-19 15:10:51,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8441 states to 8441 states and 10978 transitions. [2021-11-19 15:10:51,329 INFO L78 Accepts]: Start accepts. Automaton has 8441 states and 10978 transitions. Word has length 440 [2021-11-19 15:10:51,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:10:51,330 INFO L470 AbstractCegarLoop]: Abstraction has 8441 states and 10978 transitions. [2021-11-19 15:10:51,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 3 states have call successors, (108), 3 states have call predecessors, (108), 3 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) [2021-11-19 15:10:51,331 INFO L276 IsEmpty]: Start isEmpty. Operand 8441 states and 10978 transitions. [2021-11-19 15:10:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-11-19 15:10:51,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:10:51,339 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:10:51,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-19 15:10:51,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2021-11-19 15:10:51,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 15:10:51,755 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:10:51,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:10:51,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1468851331, now seen corresponding path program 1 times [2021-11-19 15:10:51,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:10:51,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618259297] [2021-11-19 15:10:51,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:10:51,758 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:10:51,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:10:51,762 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:10:51,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-19 15:10:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:10:54,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1987 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-19 15:10:54,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:10:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 219 proven. 3 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2021-11-19 15:10:57,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:11:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 55 proven. 9 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-19 15:11:02,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:11:02,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618259297] [2021-11-19 15:11:02,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618259297] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:11:02,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [211576584] [2021-11-19 15:11:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:11:02,648 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:11:02,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:11:02,649 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:11:02,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2021-11-19 15:11:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:11:04,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1987 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:11:04,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:11:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2021-11-19 15:11:06,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:11:08,304 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked. [2021-11-19 15:11:08,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [211576584] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:11:08,304 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 15:11:08,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [13, 13] total 16 [2021-11-19 15:11:08,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668326297] [2021-11-19 15:11:08,305 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:11:08,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:11:08,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:11:08,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:11:08,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2021-11-19 15:11:08,307 INFO L87 Difference]: Start difference. First operand 8441 states and 10978 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-19 15:11:10,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:11:10,561 INFO L93 Difference]: Finished difference Result 17533 states and 22938 transitions. [2021-11-19 15:11:10,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:11:10,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 440 [2021-11-19 15:11:10,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:11:10,593 INFO L225 Difference]: With dead ends: 17533 [2021-11-19 15:11:10,594 INFO L226 Difference]: Without dead ends: 9171 [2021-11-19 15:11:10,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1757 GetRequests, 1742 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:11:10,620 INFO L933 BasicCegarLoop]: 2104 mSDtfsCounter, 432 mSDsluCounter, 3825 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 5929 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:11:10,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 5929 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 15:11:10,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9171 states. [2021-11-19 15:11:12,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9171 to 8443. [2021-11-19 15:11:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8443 states, 5629 states have (on average 1.18529046011725) internal successors, (6672), 5832 states have internal predecessors, (6672), 2129 states have call successors, (2129), 679 states have call predecessors, (2129), 675 states have return successors, (2179), 2050 states have call predecessors, (2179), 2125 states have call successors, (2179) [2021-11-19 15:11:12,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8443 states to 8443 states and 10980 transitions. [2021-11-19 15:11:12,761 INFO L78 Accepts]: Start accepts. Automaton has 8443 states and 10980 transitions. Word has length 440 [2021-11-19 15:11:12,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:11:12,762 INFO L470 AbstractCegarLoop]: Abstraction has 8443 states and 10980 transitions. [2021-11-19 15:11:12,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-19 15:11:12,762 INFO L276 IsEmpty]: Start isEmpty. Operand 8443 states and 10980 transitions. [2021-11-19 15:11:12,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2021-11-19 15:11:12,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:11:12,771 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:11:12,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2021-11-19 15:11:13,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-19 15:11:13,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:11:13,189 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:11:13,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:11:13,190 INFO L85 PathProgramCache]: Analyzing trace with hash 439672958, now seen corresponding path program 1 times [2021-11-19 15:11:13,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:11:13,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45155441] [2021-11-19 15:11:13,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:11:13,192 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:11:13,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:11:13,193 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:11:13,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-19 15:11:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:11:15,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 1989 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:11:15,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:11:19,126 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2021-11-19 15:11:19,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:11:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-19 15:11:25,065 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:11:25,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45155441] [2021-11-19 15:11:25,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45155441] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:11:25,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:11:25,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-19 15:11:25,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922004669] [2021-11-19 15:11:25,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:11:25,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 15:11:25,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:11:25,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 15:11:25,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-19 15:11:25,070 INFO L87 Difference]: Start difference. First operand 8443 states and 10980 transitions. Second operand has 18 states, 18 states have (on average 12.0) internal successors, (216), 14 states have internal predecessors, (216), 4 states have call successors, (82), 2 states have call predecessors, (82), 6 states have return successors, (79), 8 states have call predecessors, (79), 4 states have call successors, (79) [2021-11-19 15:11:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:11:29,554 INFO L93 Difference]: Finished difference Result 17605 states and 23028 transitions. [2021-11-19 15:11:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 15:11:29,555 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.0) internal successors, (216), 14 states have internal predecessors, (216), 4 states have call successors, (82), 2 states have call predecessors, (82), 6 states have return successors, (79), 8 states have call predecessors, (79), 4 states have call successors, (79) Word has length 432 [2021-11-19 15:11:29,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:11:29,591 INFO L225 Difference]: With dead ends: 17605 [2021-11-19 15:11:29,591 INFO L226 Difference]: Without dead ends: 9214 [2021-11-19 15:11:29,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 865 GetRequests, 846 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-11-19 15:11:29,612 INFO L933 BasicCegarLoop]: 2226 mSDtfsCounter, 365 mSDsluCounter, 24236 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 26462 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-19 15:11:29,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 26462 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-19 15:11:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9214 states. [2021-11-19 15:11:31,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9214 to 8445. [2021-11-19 15:11:31,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8445 states, 5631 states have (on average 1.1852246492630083) internal successors, (6674), 5833 states have internal predecessors, (6674), 2129 states have call successors, (2129), 679 states have call predecessors, (2129), 675 states have return successors, (2179), 2051 states have call predecessors, (2179), 2125 states have call successors, (2179) [2021-11-19 15:11:31,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8445 states to 8445 states and 10982 transitions. [2021-11-19 15:11:31,126 INFO L78 Accepts]: Start accepts. Automaton has 8445 states and 10982 transitions. Word has length 432 [2021-11-19 15:11:31,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:11:31,127 INFO L470 AbstractCegarLoop]: Abstraction has 8445 states and 10982 transitions. [2021-11-19 15:11:31,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.0) internal successors, (216), 14 states have internal predecessors, (216), 4 states have call successors, (82), 2 states have call predecessors, (82), 6 states have return successors, (79), 8 states have call predecessors, (79), 4 states have call successors, (79) [2021-11-19 15:11:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 8445 states and 10982 transitions. [2021-11-19 15:11:31,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2021-11-19 15:11:31,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:11:31,136 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:11:31,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-11-19 15:11:31,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:11:31,363 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:11:31,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:11:31,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1382463505, now seen corresponding path program 1 times [2021-11-19 15:11:31,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:11:31,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267044786] [2021-11-19 15:11:31,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:11:31,367 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:11:31,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:11:31,368 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:11:31,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-19 15:11:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:11:34,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 2033 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:11:34,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:11:36,131 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2021-11-19 15:11:36,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:11:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked. [2021-11-19 15:11:37,520 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:11:37,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267044786] [2021-11-19 15:11:37,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267044786] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:11:37,520 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:11:37,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:11:37,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198307926] [2021-11-19 15:11:37,521 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:11:37,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:11:37,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:11:37,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:11:37,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:11:37,524 INFO L87 Difference]: Start difference. First operand 8445 states and 10982 transitions. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 4 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) [2021-11-19 15:11:39,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:11:41,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:11:41,554 INFO L93 Difference]: Finished difference Result 16704 states and 21695 transitions. [2021-11-19 15:11:41,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:11:41,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 4 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) Word has length 453 [2021-11-19 15:11:41,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:11:41,583 INFO L225 Difference]: With dead ends: 16704 [2021-11-19 15:11:41,583 INFO L226 Difference]: Without dead ends: 8569 [2021-11-19 15:11:41,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:11:41,602 INFO L933 BasicCegarLoop]: 1745 mSDtfsCounter, 87 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:11:41,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 3444 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 15:11:41,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8569 states. [2021-11-19 15:11:43,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8569 to 8543. [2021-11-19 15:11:43,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8543 states, 5689 states have (on average 1.1850940411320092) internal successors, (6742), 5890 states have internal predecessors, (6742), 2169 states have call successors, (2169), 679 states have call predecessors, (2169), 675 states have return successors, (2220), 2091 states have call predecessors, (2220), 2165 states have call successors, (2220) [2021-11-19 15:11:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8543 states to 8543 states and 11131 transitions. [2021-11-19 15:11:43,193 INFO L78 Accepts]: Start accepts. Automaton has 8543 states and 11131 transitions. Word has length 453 [2021-11-19 15:11:43,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:11:43,194 INFO L470 AbstractCegarLoop]: Abstraction has 8543 states and 11131 transitions. [2021-11-19 15:11:43,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 4 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) [2021-11-19 15:11:43,194 INFO L276 IsEmpty]: Start isEmpty. Operand 8543 states and 11131 transitions. [2021-11-19 15:11:43,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-11-19 15:11:43,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:11:43,204 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:11:43,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2021-11-19 15:11:43,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:11:43,431 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:11:43,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:11:43,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1769171564, now seen corresponding path program 1 times [2021-11-19 15:11:43,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:11:43,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131403928] [2021-11-19 15:11:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:11:43,435 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:11:43,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:11:43,436 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:11:43,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-19 15:11:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:11:45,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 15:11:45,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:11:47,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1417 trivial. 0 not checked. [2021-11-19 15:11:47,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:11:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1417 trivial. 0 not checked. [2021-11-19 15:11:50,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:11:50,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131403928] [2021-11-19 15:11:50,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131403928] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:11:50,571 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:11:50,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-19 15:11:50,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038028470] [2021-11-19 15:11:50,571 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:11:50,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 15:11:50,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:11:50,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 15:11:50,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-19 15:11:50,573 INFO L87 Difference]: Start difference. First operand 8543 states and 11131 transitions. Second operand has 15 states, 15 states have (on average 9.533333333333333) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-19 15:11:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:11:53,818 INFO L93 Difference]: Finished difference Result 15896 states and 20745 transitions. [2021-11-19 15:11:53,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 15:11:53,826 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.533333333333333) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 3 states have call successors, (54) Word has length 446 [2021-11-19 15:11:53,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:11:53,852 INFO L225 Difference]: With dead ends: 15896 [2021-11-19 15:11:53,852 INFO L226 Difference]: Without dead ends: 8783 [2021-11-19 15:11:53,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 893 GetRequests, 877 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-11-19 15:11:53,870 INFO L933 BasicCegarLoop]: 1724 mSDtfsCounter, 26 mSDsluCounter, 18947 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 20671 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:11:53,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 20671 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 15:11:53,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8783 states. [2021-11-19 15:11:55,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8783 to 8639. [2021-11-19 15:11:55,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8639 states, 5761 states have (on average 1.1827807672279118) internal successors, (6814), 5962 states have internal predecessors, (6814), 2177 states have call successors, (2177), 679 states have call predecessors, (2177), 691 states have return successors, (2287), 2115 states have call predecessors, (2287), 2173 states have call successors, (2287) [2021-11-19 15:11:55,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8639 states to 8639 states and 11278 transitions. [2021-11-19 15:11:55,352 INFO L78 Accepts]: Start accepts. Automaton has 8639 states and 11278 transitions. Word has length 446 [2021-11-19 15:11:55,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:11:55,352 INFO L470 AbstractCegarLoop]: Abstraction has 8639 states and 11278 transitions. [2021-11-19 15:11:55,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.533333333333333) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-19 15:11:55,353 INFO L276 IsEmpty]: Start isEmpty. Operand 8639 states and 11278 transitions. [2021-11-19 15:11:55,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-11-19 15:11:55,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:11:55,358 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:11:55,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-19 15:11:55,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:11:55,559 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:11:55,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:11:55,559 INFO L85 PathProgramCache]: Analyzing trace with hash 959824938, now seen corresponding path program 1 times [2021-11-19 15:11:55,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:11:55,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100496797] [2021-11-19 15:11:55,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:11:55,561 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:11:55,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:11:55,562 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:11:55,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-19 15:11:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:11:57,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 15:11:57,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:11:59,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2021-11-19 15:11:59,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-11-19 15:11:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2021-11-19 15:11:59,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:12:01,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1417 trivial. 0 not checked. [2021-11-19 15:12:01,094 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:12:01,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100496797] [2021-11-19 15:12:01,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100496797] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:12:01,095 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:12:01,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-11-19 15:12:01,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574033113] [2021-11-19 15:12:01,095 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:12:01,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:12:01,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:12:01,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:12:01,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:12:01,096 INFO L87 Difference]: Start difference. First operand 8639 states and 11278 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 4 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-19 15:12:03,186 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:12:05,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:12:07,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:12:10,266 WARN L515 Checker$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 15:12:12,352 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:12:14,595 WARN L515 Checker$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 15:12:17,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:12:19,622 WARN L515 Checker$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 15:12:21,794 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:12:23,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:12:25,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:12:26,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:12:30,815 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 15:12:31,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:12:31,950 INFO L93 Difference]: Finished difference Result 16384 states and 21177 transitions. [2021-11-19 15:12:31,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:12:31,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 4 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 446 [2021-11-19 15:12:31,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:12:31,978 INFO L225 Difference]: With dead ends: 16384 [2021-11-19 15:12:31,979 INFO L226 Difference]: Without dead ends: 9175 [2021-11-19 15:12:31,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 891 GetRequests, 884 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-19 15:12:31,994 INFO L933 BasicCegarLoop]: 1772 mSDtfsCounter, 28 mSDsluCounter, 6579 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 8351 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 199 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:12:31,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 8351 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 9 Unknown, 199 Unchecked, 29.3s Time] [2021-11-19 15:12:32,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9175 states. [2021-11-19 15:12:33,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9175 to 9143. [2021-11-19 15:12:33,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9143 states, 6089 states have (on average 1.174905567416653) internal successors, (7154), 6290 states have internal predecessors, (7154), 2265 states have call successors, (2265), 759 states have call predecessors, (2265), 779 states have return successors, (2356), 2211 states have call predecessors, (2356), 2261 states have call successors, (2356) [2021-11-19 15:12:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9143 states to 9143 states and 11775 transitions. [2021-11-19 15:12:33,472 INFO L78 Accepts]: Start accepts. Automaton has 9143 states and 11775 transitions. Word has length 446 [2021-11-19 15:12:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:12:33,473 INFO L470 AbstractCegarLoop]: Abstraction has 9143 states and 11775 transitions. [2021-11-19 15:12:33,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 4 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-19 15:12:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 9143 states and 11775 transitions. [2021-11-19 15:12:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2021-11-19 15:12:33,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:12:33,480 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 9, 9, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:12:33,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-11-19 15:12:33,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:12:33,696 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:12:33,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:12:33,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1577847461, now seen corresponding path program 1 times [2021-11-19 15:12:33,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:12:33,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40493721] [2021-11-19 15:12:33,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:12:33,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:12:33,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:12:33,701 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:12:33,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-19 15:12:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:12:36,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 1972 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:12:36,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:12:39,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2021-11-19 15:12:39,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:12:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1105 trivial. 0 not checked. [2021-11-19 15:12:44,696 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:12:44,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40493721] [2021-11-19 15:12:44,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40493721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:12:44,697 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:12:44,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-19 15:12:44,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260015034] [2021-11-19 15:12:44,697 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:12:44,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 15:12:44,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:12:44,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 15:12:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-19 15:12:44,699 INFO L87 Difference]: Start difference. First operand 9143 states and 11775 transitions. Second operand has 18 states, 18 states have (on average 10.166666666666666) internal successors, (183), 14 states have internal predecessors, (183), 4 states have call successors, (72), 2 states have call predecessors, (72), 6 states have return successors, (74), 8 states have call predecessors, (74), 4 states have call successors, (74) [2021-11-19 15:12:47,839 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 15:12:50,325 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 15:12:54,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:12:54,638 INFO L93 Difference]: Finished difference Result 22291 states and 29640 transitions. [2021-11-19 15:12:54,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 15:12:54,639 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.166666666666666) internal successors, (183), 14 states have internal predecessors, (183), 4 states have call successors, (72), 2 states have call predecessors, (72), 6 states have return successors, (74), 8 states have call predecessors, (74), 4 states have call successors, (74) Word has length 493 [2021-11-19 15:12:54,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:12:54,672 INFO L225 Difference]: With dead ends: 22291 [2021-11-19 15:12:54,672 INFO L226 Difference]: Without dead ends: 13240 [2021-11-19 15:12:54,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 968 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-11-19 15:12:54,692 INFO L933 BasicCegarLoop]: 2607 mSDtfsCounter, 456 mSDsluCounter, 30816 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 138 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 33423 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:12:54,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 33423 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 229 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-11-19 15:12:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13240 states. [2021-11-19 15:12:56,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13240 to 9178. [2021-11-19 15:12:56,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9178 states, 6115 states have (on average 1.1741618969746526) internal successors, (7180), 6315 states have internal predecessors, (7180), 2268 states have call successors, (2268), 759 states have call predecessors, (2268), 785 states have return successors, (2368), 2221 states have call predecessors, (2368), 2264 states have call successors, (2368) [2021-11-19 15:12:56,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9178 states to 9178 states and 11816 transitions. [2021-11-19 15:12:56,204 INFO L78 Accepts]: Start accepts. Automaton has 9178 states and 11816 transitions. Word has length 493 [2021-11-19 15:12:56,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:12:56,204 INFO L470 AbstractCegarLoop]: Abstraction has 9178 states and 11816 transitions. [2021-11-19 15:12:56,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.166666666666666) internal successors, (183), 14 states have internal predecessors, (183), 4 states have call successors, (72), 2 states have call predecessors, (72), 6 states have return successors, (74), 8 states have call predecessors, (74), 4 states have call successors, (74) [2021-11-19 15:12:56,205 INFO L276 IsEmpty]: Start isEmpty. Operand 9178 states and 11816 transitions. [2021-11-19 15:12:56,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2021-11-19 15:12:56,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:12:56,212 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:12:56,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-19 15:12:56,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:12:56,415 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:12:56,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:12:56,415 INFO L85 PathProgramCache]: Analyzing trace with hash 475450466, now seen corresponding path program 1 times [2021-11-19 15:12:56,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:12:56,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133006884] [2021-11-19 15:12:56,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:12:56,417 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:12:56,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:12:56,417 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:12:56,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-19 15:12:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:12:59,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 15:12:59,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:13:01,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2021-11-19 15:13:01,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:13:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2021-11-19 15:13:03,573 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:13:03,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133006884] [2021-11-19 15:13:03,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133006884] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:13:03,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:13:03,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2021-11-19 15:13:03,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563628598] [2021-11-19 15:13:03,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:13:03,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 15:13:03,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:13:03,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 15:13:03,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-19 15:13:03,576 INFO L87 Difference]: Start difference. First operand 9178 states and 11816 transitions. Second operand has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 8 states have internal predecessors, (159), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-19 15:13:06,129 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 15:13:09,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:13:09,271 INFO L93 Difference]: Finished difference Result 20336 states and 26676 transitions. [2021-11-19 15:13:09,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 15:13:09,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 8 states have internal predecessors, (159), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) Word has length 514 [2021-11-19 15:13:09,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:13:09,298 INFO L225 Difference]: With dead ends: 20336 [2021-11-19 15:13:09,298 INFO L226 Difference]: Without dead ends: 11269 [2021-11-19 15:13:09,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1030 GetRequests, 1012 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2021-11-19 15:13:09,315 INFO L933 BasicCegarLoop]: 2216 mSDtfsCounter, 1057 mSDsluCounter, 13752 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 15968 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 15:13:09,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1057 Valid, 15968 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 15:13:09,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11269 states. [2021-11-19 15:13:10,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11269 to 9230. [2021-11-19 15:13:10,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9230 states, 6147 states have (on average 1.1732552464616886) internal successors, (7212), 6347 states have internal predecessors, (7212), 2284 states have call successors, (2284), 759 states have call predecessors, (2284), 789 states have return successors, (2411), 2241 states have call predecessors, (2411), 2280 states have call successors, (2411) [2021-11-19 15:13:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9230 states to 9230 states and 11907 transitions. [2021-11-19 15:13:10,893 INFO L78 Accepts]: Start accepts. Automaton has 9230 states and 11907 transitions. Word has length 514 [2021-11-19 15:13:10,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:13:10,893 INFO L470 AbstractCegarLoop]: Abstraction has 9230 states and 11907 transitions. [2021-11-19 15:13:10,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 8 states have internal predecessors, (159), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-19 15:13:10,894 INFO L276 IsEmpty]: Start isEmpty. Operand 9230 states and 11907 transitions. [2021-11-19 15:13:10,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2021-11-19 15:13:10,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:13:10,898 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:13:10,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-11-19 15:13:11,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:13:11,099 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:13:11,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:13:11,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1198714977, now seen corresponding path program 1 times [2021-11-19 15:13:11,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:13:11,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746180306] [2021-11-19 15:13:11,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:13:11,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:13:11,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:13:11,102 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:13:11,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-19 15:13:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:13:13,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 2177 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-19 15:13:13,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:13:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1164 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2021-11-19 15:13:18,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:13:29,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1164 backedges. 83 proven. 6 refuted. 0 times theorem prover too weak. 1075 trivial. 0 not checked. [2021-11-19 15:13:29,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:13:29,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746180306] [2021-11-19 15:13:29,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746180306] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:13:29,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:13:29,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [16] total 31 [2021-11-19 15:13:29,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979735887] [2021-11-19 15:13:29,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:13:29,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 15:13:29,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:13:29,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 15:13:29,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2021-11-19 15:13:29,030 INFO L87 Difference]: Start difference. First operand 9230 states and 11907 transitions. Second operand has 18 states, 16 states have (on average 11.8125) internal successors, (189), 14 states have internal predecessors, (189), 6 states have call successors, (65), 2 states have call predecessors, (65), 6 states have return successors, (60), 9 states have call predecessors, (60), 6 states have call successors, (60) [2021-11-19 15:13:36,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:13:39,560 WARN L515 Checker$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 15:13:41,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:13:41,320 INFO L93 Difference]: Finished difference Result 18010 states and 23129 transitions. [2021-11-19 15:13:41,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 15:13:41,321 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 11.8125) internal successors, (189), 14 states have internal predecessors, (189), 6 states have call successors, (65), 2 states have call predecessors, (65), 6 states have return successors, (60), 9 states have call predecessors, (60), 6 states have call successors, (60) Word has length 520 [2021-11-19 15:13:41,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:13:41,342 INFO L225 Difference]: With dead ends: 18010 [2021-11-19 15:13:41,342 INFO L226 Difference]: Without dead ends: 9258 [2021-11-19 15:13:41,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 1009 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=180, Invalid=1380, Unknown=0, NotChecked=0, Total=1560 [2021-11-19 15:13:41,359 INFO L933 BasicCegarLoop]: 1706 mSDtfsCounter, 24 mSDsluCounter, 23804 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 25510 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:13:41,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 25510 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 548 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-19 15:13:41,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9258 states. [2021-11-19 15:13:42,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9258 to 9230. [2021-11-19 15:13:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9230 states, 6147 states have (on average 1.172441841548723) internal successors, (7207), 6347 states have internal predecessors, (7207), 2284 states have call successors, (2284), 759 states have call predecessors, (2284), 789 states have return successors, (2411), 2241 states have call predecessors, (2411), 2280 states have call successors, (2411) [2021-11-19 15:13:42,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9230 states to 9230 states and 11902 transitions. [2021-11-19 15:13:42,769 INFO L78 Accepts]: Start accepts. Automaton has 9230 states and 11902 transitions. Word has length 520 [2021-11-19 15:13:42,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:13:42,769 INFO L470 AbstractCegarLoop]: Abstraction has 9230 states and 11902 transitions. [2021-11-19 15:13:42,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 11.8125) internal successors, (189), 14 states have internal predecessors, (189), 6 states have call successors, (65), 2 states have call predecessors, (65), 6 states have return successors, (60), 9 states have call predecessors, (60), 6 states have call successors, (60) [2021-11-19 15:13:42,770 INFO L276 IsEmpty]: Start isEmpty. Operand 9230 states and 11902 transitions. [2021-11-19 15:13:42,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2021-11-19 15:13:42,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:13:42,775 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:13:42,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-19 15:13:42,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:13:42,976 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:13:42,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:13:42,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1208168548, now seen corresponding path program 1 times [2021-11-19 15:13:42,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:13:42,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840631270] [2021-11-19 15:13:42,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:13:42,978 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:13:42,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:13:42,979 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:13:42,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-11-19 15:13:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:13:45,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:13:45,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:13:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2021-11-19 15:13:47,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:13:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2021-11-19 15:13:48,664 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:13:48,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840631270] [2021-11-19 15:13:48,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840631270] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:13:48,664 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:13:48,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 15:13:48,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463870638] [2021-11-19 15:13:48,664 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:13:48,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:13:48,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:13:48,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:13:48,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:13:48,666 INFO L87 Difference]: Start difference. First operand 9230 states and 11902 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 3 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2021-11-19 15:13:50,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:13:54,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:13:54,780 INFO L93 Difference]: Finished difference Result 21451 states and 28419 transitions. [2021-11-19 15:13:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:13:54,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 3 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 499 [2021-11-19 15:13:54,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:13:54,813 INFO L225 Difference]: With dead ends: 21451 [2021-11-19 15:13:54,813 INFO L226 Difference]: Without dead ends: 12811 [2021-11-19 15:13:54,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:13:54,828 INFO L933 BasicCegarLoop]: 2214 mSDtfsCounter, 720 mSDsluCounter, 5977 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 373 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 8191 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:13:54,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [863 Valid, 8191 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 20 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-19 15:13:54,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12811 states. [2021-11-19 15:13:56,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12811 to 9285. [2021-11-19 15:13:56,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9285 states, 6184 states have (on average 1.1714100905562743) internal successors, (7244), 6384 states have internal predecessors, (7244), 2302 states have call successors, (2302), 759 states have call predecessors, (2302), 789 states have return successors, (2431), 2261 states have call predecessors, (2431), 2298 states have call successors, (2431) [2021-11-19 15:13:56,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9285 states to 9285 states and 11977 transitions. [2021-11-19 15:13:56,372 INFO L78 Accepts]: Start accepts. Automaton has 9285 states and 11977 transitions. Word has length 499 [2021-11-19 15:13:56,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:13:56,373 INFO L470 AbstractCegarLoop]: Abstraction has 9285 states and 11977 transitions. [2021-11-19 15:13:56,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 3 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2021-11-19 15:13:56,373 INFO L276 IsEmpty]: Start isEmpty. Operand 9285 states and 11977 transitions. [2021-11-19 15:13:56,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2021-11-19 15:13:56,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:13:56,379 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:13:56,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-11-19 15:13:56,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:13:56,587 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:13:56,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:13:56,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1666991892, now seen corresponding path program 1 times [2021-11-19 15:13:56,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:13:56,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163879271] [2021-11-19 15:13:56,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:13:56,589 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:13:56,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:13:56,590 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:13:56,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-19 15:13:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:13:59,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 2048 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:13:59,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:14:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 1102 trivial. 0 not checked. [2021-11-19 15:14:02,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:14:07,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 57 proven. 8 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2021-11-19 15:14:07,167 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:14:07,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163879271] [2021-11-19 15:14:07,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163879271] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:14:07,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:14:07,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2021-11-19 15:14:07,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108066363] [2021-11-19 15:14:07,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:14:07,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 15:14:07,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:14:07,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 15:14:07,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-19 15:14:07,169 INFO L87 Difference]: Start difference. First operand 9285 states and 11977 transitions. Second operand has 12 states, 10 states have (on average 16.6) internal successors, (166), 9 states have internal predecessors, (166), 4 states have call successors, (58), 2 states have call predecessors, (58), 5 states have return successors, (57), 6 states have call predecessors, (57), 4 states have call successors, (57) [2021-11-19 15:14:12,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:14:12,309 INFO L93 Difference]: Finished difference Result 16944 states and 22050 transitions. [2021-11-19 15:14:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 15:14:12,310 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 16.6) internal successors, (166), 9 states have internal predecessors, (166), 4 states have call successors, (58), 2 states have call predecessors, (58), 5 states have return successors, (57), 6 states have call predecessors, (57), 4 states have call successors, (57) Word has length 530 [2021-11-19 15:14:12,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:14:12,329 INFO L225 Difference]: With dead ends: 16944 [2021-11-19 15:14:12,329 INFO L226 Difference]: Without dead ends: 7823 [2021-11-19 15:14:12,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 1041 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-11-19 15:14:12,347 INFO L933 BasicCegarLoop]: 2096 mSDtfsCounter, 243 mSDsluCounter, 16380 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 18476 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:14:12,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 18476 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 15:14:12,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7823 states. [2021-11-19 15:14:13,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7823 to 6726. [2021-11-19 15:14:13,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6726 states, 4485 states have (on average 1.1714604236343367) internal successors, (5254), 4634 states have internal predecessors, (5254), 1651 states have call successors, (1651), 557 states have call predecessors, (1651), 580 states have return successors, (1739), 1620 states have call predecessors, (1739), 1649 states have call successors, (1739) [2021-11-19 15:14:13,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6726 states to 6726 states and 8644 transitions. [2021-11-19 15:14:13,439 INFO L78 Accepts]: Start accepts. Automaton has 6726 states and 8644 transitions. Word has length 530 [2021-11-19 15:14:13,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:14:13,439 INFO L470 AbstractCegarLoop]: Abstraction has 6726 states and 8644 transitions. [2021-11-19 15:14:13,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 16.6) internal successors, (166), 9 states have internal predecessors, (166), 4 states have call successors, (58), 2 states have call predecessors, (58), 5 states have return successors, (57), 6 states have call predecessors, (57), 4 states have call successors, (57) [2021-11-19 15:14:13,440 INFO L276 IsEmpty]: Start isEmpty. Operand 6726 states and 8644 transitions. [2021-11-19 15:14:13,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2021-11-19 15:14:13,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:14:13,445 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:14:13,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Ended with exit code 0 [2021-11-19 15:14:13,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:14:13,646 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:14:13,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:14:13,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2041699182, now seen corresponding path program 1 times [2021-11-19 15:14:13,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:14:13,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700845687] [2021-11-19 15:14:13,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:14:13,648 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:14:13,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:14:13,649 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:14:13,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-11-19 15:14:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:14:16,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 2049 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:14:16,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:14:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 337 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2021-11-19 15:14:23,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:14:26,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-19 15:14:26,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:14:26,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700845687] [2021-11-19 15:14:26,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700845687] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:14:26,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:14:26,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2021-11-19 15:14:26,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118366794] [2021-11-19 15:14:26,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:14:26,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:14:26,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:14:26,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:14:26,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 15:14:26,465 INFO L87 Difference]: Start difference. First operand 6726 states and 8644 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 15:14:28,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:14:42,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:14:42,799 INFO L93 Difference]: Finished difference Result 15762 states and 20125 transitions. [2021-11-19 15:14:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:14:42,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 530 [2021-11-19 15:14:42,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:14:42,836 INFO L225 Difference]: With dead ends: 15762 [2021-11-19 15:14:42,836 INFO L226 Difference]: Without dead ends: 15760 [2021-11-19 15:14:42,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1060 GetRequests, 1052 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:14:42,843 INFO L933 BasicCegarLoop]: 3535 mSDtfsCounter, 3118 mSDsluCounter, 6219 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3118 SdHoareTripleChecker+Valid, 9754 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:14:42,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3118 Valid, 9754 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1301 Invalid, 1 Unknown, 0 Unchecked, 13.1s Time] [2021-11-19 15:14:42,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15760 states. [2021-11-19 15:14:45,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15760 to 14506. [2021-11-19 15:14:45,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14506 states, 9689 states have (on average 1.1817525028382703) internal successors, (11450), 10028 states have internal predecessors, (11450), 3571 states have call successors, (3571), 1181 states have call predecessors, (3571), 1236 states have return successors, (3772), 3488 states have call predecessors, (3772), 3569 states have call successors, (3772) [2021-11-19 15:14:45,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14506 states to 14506 states and 18793 transitions. [2021-11-19 15:14:45,302 INFO L78 Accepts]: Start accepts. Automaton has 14506 states and 18793 transitions. Word has length 530 [2021-11-19 15:14:45,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:14:45,303 INFO L470 AbstractCegarLoop]: Abstraction has 14506 states and 18793 transitions. [2021-11-19 15:14:45,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 15:14:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 14506 states and 18793 transitions. [2021-11-19 15:14:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-19 15:14:45,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:14:45,311 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:14:45,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-11-19 15:14:45,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:14:45,531 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:14:45,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:14:45,531 INFO L85 PathProgramCache]: Analyzing trace with hash -558104637, now seen corresponding path program 1 times [2021-11-19 15:14:45,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:14:45,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332449528] [2021-11-19 15:14:45,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:14:45,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:14:45,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:14:45,535 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:14:45,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-19 15:14:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:14:47,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:14:47,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:14:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2021-11-19 15:14:48,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:14:50,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1417 trivial. 0 not checked. [2021-11-19 15:14:50,231 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:14:50,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332449528] [2021-11-19 15:14:50,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332449528] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:14:50,231 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:14:50,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 15:14:50,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507249953] [2021-11-19 15:14:50,232 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:14:50,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 15:14:50,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:14:50,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 15:14:50,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 15:14:50,233 INFO L87 Difference]: Start difference. First operand 14506 states and 18793 transitions. Second operand has 8 states, 8 states have (on average 22.5) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (65), 4 states have call predecessors, (65), 3 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-19 15:14:52,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:14:55,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:14:55,584 INFO L93 Difference]: Finished difference Result 14572 states and 18859 transitions. [2021-11-19 15:14:55,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:14:55,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (65), 4 states have call predecessors, (65), 3 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 457 [2021-11-19 15:14:55,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:14:55,617 INFO L225 Difference]: With dead ends: 14572 [2021-11-19 15:14:55,617 INFO L226 Difference]: Without dead ends: 14570 [2021-11-19 15:14:55,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 906 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:14:55,623 INFO L933 BasicCegarLoop]: 2509 mSDtfsCounter, 1894 mSDsluCounter, 9251 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 447 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 11760 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:14:55,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1895 Valid, 11760 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-19 15:14:55,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14570 states. [2021-11-19 15:14:57,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14570 to 14541. [2021-11-19 15:14:57,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14541 states, 9710 states have (on average 1.1813594232749742) internal successors, (11471), 10056 states have internal predecessors, (11471), 3578 states have call successors, (3578), 1188 states have call predecessors, (3578), 1243 states have return successors, (3779), 3488 states have call predecessors, (3779), 3576 states have call successors, (3779) [2021-11-19 15:14:58,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14541 states to 14541 states and 18828 transitions. [2021-11-19 15:14:58,014 INFO L78 Accepts]: Start accepts. Automaton has 14541 states and 18828 transitions. Word has length 457 [2021-11-19 15:14:58,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:14:58,015 INFO L470 AbstractCegarLoop]: Abstraction has 14541 states and 18828 transitions. [2021-11-19 15:14:58,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (65), 4 states have call predecessors, (65), 3 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-19 15:14:58,015 INFO L276 IsEmpty]: Start isEmpty. Operand 14541 states and 18828 transitions. [2021-11-19 15:14:58,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2021-11-19 15:14:58,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:14:58,021 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:14:58,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-19 15:14:58,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:14:58,222 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:14:58,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:14:58,222 INFO L85 PathProgramCache]: Analyzing trace with hash 824874075, now seen corresponding path program 1 times [2021-11-19 15:14:58,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:14:58,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473748984] [2021-11-19 15:14:58,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:14:58,225 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:14:58,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:14:58,226 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:14:58,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-11-19 15:15:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:15:00,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1841 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:15:00,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:15:01,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1417 trivial. 0 not checked. [2021-11-19 15:15:01,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:15:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1417 trivial. 0 not checked. [2021-11-19 15:15:02,747 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:15:02,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473748984] [2021-11-19 15:15:02,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473748984] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:15:02,748 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:15:02,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 15:15:02,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497401924] [2021-11-19 15:15:02,748 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:15:02,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:15:02,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:15:02,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:15:02,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:15:02,749 INFO L87 Difference]: Start difference. First operand 14541 states and 18828 transitions. Second operand has 10 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 2 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-19 15:15:05,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:15:05,587 INFO L93 Difference]: Finished difference Result 27592 states and 35998 transitions. [2021-11-19 15:15:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:15:05,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 2 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) Word has length 468 [2021-11-19 15:15:05,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:15:05,627 INFO L225 Difference]: With dead ends: 27592 [2021-11-19 15:15:05,627 INFO L226 Difference]: Without dead ends: 14919 [2021-11-19 15:15:05,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 936 GetRequests, 926 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:15:05,654 INFO L933 BasicCegarLoop]: 1736 mSDtfsCounter, 26 mSDsluCounter, 6948 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 8684 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:15:05,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 8684 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:15:05,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14919 states. [2021-11-19 15:15:08,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 14744. [2021-11-19 15:15:08,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14744 states, 9871 states have (on average 1.1826562658291966) internal successors, (11674), 10238 states have internal predecessors, (11674), 3606 states have call successors, (3606), 1188 states have call predecessors, (3606), 1257 states have return successors, (3835), 3523 states have call predecessors, (3835), 3604 states have call successors, (3835) [2021-11-19 15:15:08,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14744 states to 14744 states and 19115 transitions. [2021-11-19 15:15:08,248 INFO L78 Accepts]: Start accepts. Automaton has 14744 states and 19115 transitions. Word has length 468 [2021-11-19 15:15:08,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:15:08,249 INFO L470 AbstractCegarLoop]: Abstraction has 14744 states and 19115 transitions. [2021-11-19 15:15:08,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 2 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-19 15:15:08,250 INFO L276 IsEmpty]: Start isEmpty. Operand 14744 states and 19115 transitions. [2021-11-19 15:15:08,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2021-11-19 15:15:08,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:15:08,259 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:08,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-11-19 15:15:08,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:15:08,475 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:15:08,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:15:08,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1092082802, now seen corresponding path program 1 times [2021-11-19 15:15:08,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:15:08,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732674620] [2021-11-19 15:15:08,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:15:08,477 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:15:08,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:15:08,477 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:15:08,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-11-19 15:15:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:15:10,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1837 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:15:10,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:15:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1621 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2021-11-19 15:15:11,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:15:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1621 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2021-11-19 15:15:12,728 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:15:12,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732674620] [2021-11-19 15:15:12,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732674620] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:15:12,728 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:15:12,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 15:15:12,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644141598] [2021-11-19 15:15:12,729 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:15:12,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:15:12,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:15:12,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:15:12,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:15:12,731 INFO L87 Difference]: Start difference. First operand 14744 states and 19115 transitions. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (57), 2 states have call predecessors, (57), 1 states have call successors, (57) [2021-11-19 15:15:15,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:15:15,684 INFO L93 Difference]: Finished difference Result 27704 states and 36054 transitions. [2021-11-19 15:15:15,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:15:15,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (57), 2 states have call predecessors, (57), 1 states have call successors, (57) Word has length 484 [2021-11-19 15:15:15,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:15:15,785 INFO L225 Difference]: With dead ends: 27704 [2021-11-19 15:15:15,785 INFO L226 Difference]: Without dead ends: 14828 [2021-11-19 15:15:15,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 962 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:15:15,831 INFO L933 BasicCegarLoop]: 1725 mSDtfsCounter, 4 mSDsluCounter, 6892 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8617 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:15:15,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 8617 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:15:15,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14828 states. [2021-11-19 15:15:18,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14828 to 14800. [2021-11-19 15:15:18,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14800 states, 9913 states have (on average 1.184706950469081) internal successors, (11744), 10294 states have internal predecessors, (11744), 3606 states have call successors, (3606), 1188 states have call predecessors, (3606), 1271 states have return successors, (3849), 3523 states have call predecessors, (3849), 3604 states have call successors, (3849) [2021-11-19 15:15:18,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14800 states to 14800 states and 19199 transitions. [2021-11-19 15:15:18,537 INFO L78 Accepts]: Start accepts. Automaton has 14800 states and 19199 transitions. Word has length 484 [2021-11-19 15:15:18,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:15:18,538 INFO L470 AbstractCegarLoop]: Abstraction has 14800 states and 19199 transitions. [2021-11-19 15:15:18,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (57), 2 states have call predecessors, (57), 1 states have call successors, (57) [2021-11-19 15:15:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 14800 states and 19199 transitions. [2021-11-19 15:15:18,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2021-11-19 15:15:18,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:15:18,549 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:18,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2021-11-19 15:15:18,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:15:18,775 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:15:18,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:15:18,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1210666994, now seen corresponding path program 1 times [2021-11-19 15:15:18,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:15:18,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223736039] [2021-11-19 15:15:18,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:15:18,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:15:18,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:15:18,777 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:15:18,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-11-19 15:15:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:15:20,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:15:20,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:15:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2021-11-19 15:15:21,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:15:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2021-11-19 15:15:23,499 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:15:23,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223736039] [2021-11-19 15:15:23,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223736039] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:15:23,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1674738145] [2021-11-19 15:15:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:15:23,500 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:15:23,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:15:23,505 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:15:23,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2021-11-19 15:15:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:15:24,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:15:24,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:15:25,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-19 15:15:25,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:15:27,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-19 15:15:27,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1674738145] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:15:27,458 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 15:15:27,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [6, 6] total 14 [2021-11-19 15:15:27,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607734698] [2021-11-19 15:15:27,459 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:15:27,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:15:27,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:15:27,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:15:27,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:15:27,461 INFO L87 Difference]: Start difference. First operand 14800 states and 19199 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 4 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-19 15:15:31,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:15:31,483 INFO L93 Difference]: Finished difference Result 30791 states and 40826 transitions. [2021-11-19 15:15:31,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:15:31,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 4 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 486 [2021-11-19 15:15:31,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:15:31,549 INFO L225 Difference]: With dead ends: 30791 [2021-11-19 15:15:31,549 INFO L226 Difference]: Without dead ends: 17859 [2021-11-19 15:15:31,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1941 GetRequests, 1928 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-11-19 15:15:31,586 INFO L933 BasicCegarLoop]: 1785 mSDtfsCounter, 430 mSDsluCounter, 5300 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 7085 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:15:31,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 7085 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 15:15:31,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17859 states. [2021-11-19 15:15:34,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17859 to 15108. [2021-11-19 15:15:34,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15108 states, 10151 states have (on average 1.1872721899320264) internal successors, (12052), 10546 states have internal predecessors, (12052), 3676 states have call successors, (3676), 1188 states have call predecessors, (3676), 1271 states have return successors, (3926), 3593 states have call predecessors, (3926), 3674 states have call successors, (3926) [2021-11-19 15:15:34,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15108 states to 15108 states and 19654 transitions. [2021-11-19 15:15:34,615 INFO L78 Accepts]: Start accepts. Automaton has 15108 states and 19654 transitions. Word has length 486 [2021-11-19 15:15:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:15:34,616 INFO L470 AbstractCegarLoop]: Abstraction has 15108 states and 19654 transitions. [2021-11-19 15:15:34,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 4 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-19 15:15:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 15108 states and 19654 transitions. [2021-11-19 15:15:34,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2021-11-19 15:15:34,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:15:34,625 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:15:34,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2021-11-19 15:15:34,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-11-19 15:15:35,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:15:35,026 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 15:15:35,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:15:35,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1145123909, now seen corresponding path program 1 times [2021-11-19 15:15:35,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:15:35,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441786133] [2021-11-19 15:15:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:15:35,028 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:15:35,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:15:35,029 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:15:35,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-11-19 15:15:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:15:37,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:15:37,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:15:38,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 89 proven. 3 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2021-11-19 15:15:38,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:15:40,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1710 trivial. 0 not checked. [2021-11-19 15:15:40,519 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:15:40,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441786133] [2021-11-19 15:15:40,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441786133] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:15:40,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [268606707] [2021-11-19 15:15:40,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:15:40,520 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:15:40,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:15:40,526 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:15:40,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275b43c9-8ef3-4f1f-906c-ccc6a323b78e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2021-11-19 15:15:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:15:41,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:15:41,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:15:43,165 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-19 15:15:43,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 20 [2021-11-19 15:15:45,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1713 trivial. 0 not checked. [2021-11-19 15:15:45,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:15:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1713 trivial. 0 not checked. [2021-11-19 15:15:49,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [268606707] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:15:49,466 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 15:15:49,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 15 [2021-11-19 15:15:49,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936453131] [2021-11-19 15:15:49,467 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:15:49,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:15:49,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:15:49,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:15:49,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=162, Unknown=2, NotChecked=0, Total=210 [2021-11-19 15:15:49,468 INFO L87 Difference]: Start difference. First operand 15108 states and 19654 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2021-11-19 15:15:51,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:15:53,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:15:56,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:15:58,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:00,979 WARN L515 Checker$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 15:16:02,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:05,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:07,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:09,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:11,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:16,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:18,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:20,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:21,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:23,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:25,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:16:29,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []