./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:26:47,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:26:47,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:26:47,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:26:47,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:26:47,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:26:47,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:26:47,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:26:47,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:26:47,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:26:47,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:26:47,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:26:47,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:26:47,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:26:47,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:26:47,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:26:47,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:26:47,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:26:47,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:26:47,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:26:47,769 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:26:47,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:26:47,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:26:47,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:26:47,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:26:47,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:26:47,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:26:47,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:26:47,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:26:47,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:26:47,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:26:47,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:26:47,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:26:47,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:26:47,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:26:47,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:26:47,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:26:47,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:26:47,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:26:47,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:26:47,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:26:47,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:26:47,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 15:26:47,823 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:26:47,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:26:47,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:26:47,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:26:47,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:26:47,825 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:26:47,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:26:47,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:26:47,826 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:26:47,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:26:47,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 15:26:47,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:26:47,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:26:47,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:26:47,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:26:47,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:26:47,829 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:26:47,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:26:47,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:26:47,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:26:47,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:26:47,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:26:47,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:26:47,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:26:47,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:26:47,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 15:26:47,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 15:26:47,831 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:26:47,831 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:26:47,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:26:47,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 [2022-07-21 15:26:48,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:26:48,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:26:48,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:26:48,146 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:26:48,147 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:26:48,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-07-21 15:26:48,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8715396b1/6719f9782e324be1ac43b8c335a33896/FLAG866cda75b [2022-07-21 15:26:48,884 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:26:48,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-07-21 15:26:48,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8715396b1/6719f9782e324be1ac43b8c335a33896/FLAG866cda75b [2022-07-21 15:26:49,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8715396b1/6719f9782e324be1ac43b8c335a33896 [2022-07-21 15:26:49,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:26:49,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:26:49,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:26:49,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:26:49,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:26:49,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:26:49" (1/1) ... [2022-07-21 15:26:49,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13b9edd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:26:49, skipping insertion in model container [2022-07-21 15:26:49,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:26:49" (1/1) ... [2022-07-21 15:26:49,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:26:49,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:26:52,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-07-21 15:26:52,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-07-21 15:26:52,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-07-21 15:26:52,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-07-21 15:26:52,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-07-21 15:26:52,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-07-21 15:26:52,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-07-21 15:26:52,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-07-21 15:26:52,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-07-21 15:26:52,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-07-21 15:26:52,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-07-21 15:26:52,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-07-21 15:26:52,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-07-21 15:26:52,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-07-21 15:26:52,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-07-21 15:26:52,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-07-21 15:26:52,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-07-21 15:26:52,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-07-21 15:26:52,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-07-21 15:26:52,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-07-21 15:26:52,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-07-21 15:26:52,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-07-21 15:26:52,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-07-21 15:26:52,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-07-21 15:26:52,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-07-21 15:26:52,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-07-21 15:26:52,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-07-21 15:26:52,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-07-21 15:26:52,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-07-21 15:26:52,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-07-21 15:26:52,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-07-21 15:26:52,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-07-21 15:26:52,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-07-21 15:26:52,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-07-21 15:26:52,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-07-21 15:26:52,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-07-21 15:26:52,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-07-21 15:26:52,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-07-21 15:26:52,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-07-21 15:26:52,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-07-21 15:26:52,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-07-21 15:26:52,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-07-21 15:26:52,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-07-21 15:26:52,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-07-21 15:26:52,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-07-21 15:26:52,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-07-21 15:26:52,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-07-21 15:26:52,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-07-21 15:26:52,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-07-21 15:26:52,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-07-21 15:26:52,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-07-21 15:26:52,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-07-21 15:26:52,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-07-21 15:26:52,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-07-21 15:26:52,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-07-21 15:26:52,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-07-21 15:26:52,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-07-21 15:26:52,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-07-21 15:26:52,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-07-21 15:26:52,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-07-21 15:26:52,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-07-21 15:26:52,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-07-21 15:26:52,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-07-21 15:26:52,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-07-21 15:26:52,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-07-21 15:26:52,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-07-21 15:26:52,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-07-21 15:26:52,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-07-21 15:26:52,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-07-21 15:26:52,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-07-21 15:26:52,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-07-21 15:26:52,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-07-21 15:26:52,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-07-21 15:26:52,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-07-21 15:26:52,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-07-21 15:26:52,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-07-21 15:26:52,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-07-21 15:26:52,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-07-21 15:26:52,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-07-21 15:26:52,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-07-21 15:26:52,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-07-21 15:26:52,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-07-21 15:26:52,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-07-21 15:26:52,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-07-21 15:26:52,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-07-21 15:26:52,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-07-21 15:26:52,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-07-21 15:26:52,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-07-21 15:26:52,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:26:52,320 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:26:52,539 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: minor = info->vdevice & -268435457 [6933] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 15:26:52,549 INFO L158 Benchmark]: Toolchain (without parser) took 3359.25ms. Allocated memory was 56.6MB in the beginning and 111.1MB in the end (delta: 54.5MB). Free memory was 31.5MB in the beginning and 52.7MB in the end (delta: -21.2MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2022-07-21 15:26:52,549 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 46.1MB. Free memory is still 27.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 15:26:52,550 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3355.84ms. Allocated memory was 56.6MB in the beginning and 111.1MB in the end (delta: 54.5MB). Free memory was 31.2MB in the beginning and 52.7MB in the end (delta: -21.5MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2022-07-21 15:26:52,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 46.1MB. Free memory is still 27.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3355.84ms. Allocated memory was 56.6MB in the beginning and 111.1MB in the end (delta: 54.5MB). Free memory was 31.2MB in the beginning and 52.7MB in the end (delta: -21.5MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: minor = info->vdevice & -268435457 [6933] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: minor = info->vdevice & -268435457 [6933]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) 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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:26:54,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:26:54,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:26:54,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:26:54,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:26:54,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:26:54,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:26:54,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:26:54,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:26:54,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:26:54,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:26:54,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:26:54,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:26:54,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:26:54,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:26:54,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:26:54,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:26:54,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:26:54,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:26:54,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:26:54,252 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:26:54,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:26:54,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:26:54,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:26:54,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:26:54,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:26:54,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:26:54,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:26:54,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:26:54,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:26:54,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:26:54,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:26:54,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:26:54,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:26:54,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:26:54,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:26:54,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:26:54,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:26:54,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:26:54,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:26:54,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:26:54,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:26:54,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 15:26:54,301 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:26:54,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:26:54,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:26:54,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:26:54,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:26:54,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:26:54,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:26:54,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:26:54,304 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:26:54,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:26:54,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:26:54,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:26:54,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:26:54,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:26:54,313 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 15:26:54,313 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 15:26:54,313 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 15:26:54,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:26:54,313 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:26:54,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:26:54,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:26:54,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:26:54,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:26:54,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:26:54,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:26:54,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:26:54,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:26:54,315 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 15:26:54,315 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 15:26:54,315 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:26:54,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:26:54,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:26:54,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 15:26:54,316 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 [2022-07-21 15:26:54,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:26:54,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:26:54,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:26:54,623 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:26:54,623 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:26:54,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-07-21 15:26:54,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58fadf9c2/34adf1765b3b4e4bbf0534ecdd03522d/FLAG2e4191126 [2022-07-21 15:26:55,343 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:26:55,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-07-21 15:26:55,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58fadf9c2/34adf1765b3b4e4bbf0534ecdd03522d/FLAG2e4191126 [2022-07-21 15:26:55,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58fadf9c2/34adf1765b3b4e4bbf0534ecdd03522d [2022-07-21 15:26:55,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:26:55,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:26:55,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:26:55,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:26:55,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:26:55,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:26:55" (1/1) ... [2022-07-21 15:26:55,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c5807d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:26:55, skipping insertion in model container [2022-07-21 15:26:55,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:26:55" (1/1) ... [2022-07-21 15:26:55,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:26:55,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:26:58,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-07-21 15:26:58,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-07-21 15:26:58,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-07-21 15:26:58,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-07-21 15:26:58,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-07-21 15:26:58,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-07-21 15:26:58,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-07-21 15:26:58,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-07-21 15:26:58,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-07-21 15:26:58,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-07-21 15:26:58,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-07-21 15:26:58,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-07-21 15:26:58,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-07-21 15:26:58,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-07-21 15:26:58,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-07-21 15:26:58,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-07-21 15:26:58,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-07-21 15:26:58,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-07-21 15:26:58,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-07-21 15:26:58,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-07-21 15:26:58,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-07-21 15:26:58,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-07-21 15:26:58,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-07-21 15:26:58,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-07-21 15:26:58,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-07-21 15:26:58,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-07-21 15:26:58,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-07-21 15:26:58,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-07-21 15:26:58,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-07-21 15:26:58,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-07-21 15:26:58,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-07-21 15:26:58,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-07-21 15:26:58,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-07-21 15:26:58,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-07-21 15:26:58,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-07-21 15:26:58,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-07-21 15:26:58,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-07-21 15:26:58,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-07-21 15:26:58,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-07-21 15:26:58,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-07-21 15:26:58,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-07-21 15:26:58,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-07-21 15:26:59,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-07-21 15:26:59,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-07-21 15:26:59,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-07-21 15:26:59,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-07-21 15:26:59,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-07-21 15:26:59,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-07-21 15:26:59,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-07-21 15:26:59,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-07-21 15:26:59,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-07-21 15:26:59,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-07-21 15:26:59,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-07-21 15:26:59,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-07-21 15:26:59,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-07-21 15:26:59,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-07-21 15:26:59,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-07-21 15:26:59,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-07-21 15:26:59,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-07-21 15:26:59,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-07-21 15:26:59,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-07-21 15:26:59,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-07-21 15:26:59,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-07-21 15:26:59,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-07-21 15:26:59,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-07-21 15:26:59,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-07-21 15:26:59,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-07-21 15:26:59,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-07-21 15:26:59,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-07-21 15:26:59,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-07-21 15:26:59,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-07-21 15:26:59,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-07-21 15:26:59,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-07-21 15:26:59,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-07-21 15:26:59,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-07-21 15:26:59,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-07-21 15:26:59,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-07-21 15:26:59,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-07-21 15:26:59,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-07-21 15:26:59,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-07-21 15:26:59,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-07-21 15:26:59,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-07-21 15:26:59,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-07-21 15:26:59,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-07-21 15:26:59,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-07-21 15:26:59,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-07-21 15:26:59,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-07-21 15:26:59,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-07-21 15:26:59,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:26:59,069 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 15:26:59,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:26:59,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-07-21 15:26:59,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-07-21 15:26:59,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-07-21 15:26:59,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-07-21 15:26:59,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-07-21 15:26:59,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-07-21 15:26:59,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-07-21 15:26:59,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-07-21 15:26:59,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-07-21 15:26:59,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-07-21 15:26:59,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-07-21 15:26:59,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-07-21 15:26:59,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-07-21 15:26:59,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-07-21 15:26:59,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-07-21 15:26:59,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-07-21 15:26:59,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-07-21 15:26:59,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-07-21 15:26:59,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-07-21 15:26:59,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-07-21 15:26:59,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-07-21 15:26:59,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-07-21 15:26:59,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-07-21 15:26:59,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-07-21 15:26:59,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-07-21 15:26:59,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-07-21 15:26:59,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-07-21 15:26:59,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-07-21 15:26:59,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-07-21 15:26:59,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-07-21 15:26:59,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-07-21 15:26:59,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-07-21 15:26:59,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-07-21 15:26:59,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-07-21 15:26:59,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-07-21 15:26:59,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-07-21 15:26:59,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-07-21 15:26:59,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-07-21 15:26:59,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-07-21 15:26:59,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-07-21 15:26:59,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-07-21 15:26:59,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-07-21 15:26:59,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-07-21 15:26:59,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-07-21 15:26:59,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-07-21 15:26:59,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-07-21 15:26:59,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-07-21 15:26:59,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-07-21 15:26:59,394 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-07-21 15:26:59,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-07-21 15:26:59,396 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-07-21 15:26:59,396 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-07-21 15:26:59,396 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-07-21 15:26:59,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-07-21 15:26:59,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-07-21 15:26:59,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-07-21 15:26:59,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-07-21 15:26:59,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-07-21 15:26:59,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-07-21 15:26:59,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-07-21 15:26:59,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-07-21 15:26:59,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-07-21 15:26:59,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-07-21 15:26:59,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-07-21 15:26:59,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-07-21 15:26:59,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-07-21 15:26:59,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-07-21 15:26:59,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-07-21 15:26:59,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-07-21 15:26:59,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-07-21 15:26:59,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-07-21 15:26:59,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-07-21 15:26:59,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-07-21 15:26:59,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-07-21 15:26:59,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-07-21 15:26:59,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-07-21 15:26:59,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-07-21 15:26:59,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-07-21 15:26:59,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-07-21 15:26:59,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-07-21 15:26:59,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-07-21 15:26:59,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-07-21 15:26:59,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-07-21 15:26:59,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-07-21 15:26:59,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-07-21 15:26:59,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-07-21 15:26:59,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-07-21 15:26:59,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-07-21 15:26:59,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:26:59,433 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:26:59,784 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-07-21 15:26:59,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-07-21 15:26:59,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-07-21 15:26:59,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-07-21 15:26:59,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-07-21 15:26:59,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-07-21 15:26:59,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-07-21 15:26:59,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-07-21 15:26:59,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-07-21 15:26:59,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-07-21 15:26:59,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-07-21 15:26:59,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-07-21 15:26:59,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-07-21 15:26:59,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-07-21 15:26:59,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-07-21 15:26:59,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-07-21 15:26:59,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-07-21 15:26:59,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-07-21 15:26:59,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-07-21 15:26:59,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-07-21 15:26:59,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-07-21 15:26:59,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-07-21 15:26:59,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-07-21 15:26:59,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-07-21 15:26:59,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-07-21 15:26:59,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-07-21 15:26:59,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-07-21 15:26:59,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-07-21 15:26:59,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-07-21 15:26:59,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-07-21 15:26:59,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-07-21 15:26:59,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-07-21 15:26:59,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-07-21 15:26:59,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-07-21 15:26:59,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-07-21 15:26:59,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-07-21 15:26:59,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-07-21 15:26:59,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-07-21 15:26:59,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-07-21 15:26:59,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-07-21 15:26:59,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-07-21 15:26:59,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-07-21 15:26:59,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-07-21 15:26:59,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-07-21 15:26:59,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-07-21 15:26:59,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-07-21 15:26:59,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-07-21 15:26:59,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-07-21 15:26:59,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-07-21 15:26:59,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-07-21 15:26:59,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-07-21 15:26:59,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-07-21 15:26:59,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-07-21 15:26:59,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-07-21 15:26:59,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-07-21 15:26:59,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-07-21 15:26:59,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-07-21 15:26:59,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-07-21 15:26:59,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-07-21 15:26:59,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-07-21 15:26:59,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-07-21 15:26:59,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-07-21 15:26:59,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-07-21 15:26:59,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-07-21 15:26:59,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-07-21 15:26:59,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-07-21 15:26:59,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-07-21 15:26:59,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-07-21 15:26:59,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-07-21 15:26:59,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-07-21 15:26:59,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-07-21 15:26:59,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-07-21 15:26:59,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-07-21 15:26:59,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-07-21 15:26:59,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-07-21 15:26:59,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-07-21 15:26:59,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-07-21 15:26:59,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-07-21 15:26:59,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-07-21 15:26:59,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-07-21 15:26:59,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-07-21 15:26:59,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-07-21 15:26:59,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-07-21 15:26:59,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-07-21 15:26:59,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-07-21 15:26:59,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-07-21 15:26:59,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-07-21 15:26:59,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-07-21 15:26:59,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:27:00,034 INFO L208 MainTranslator]: Completed translation [2022-07-21 15:27:00,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00 WrapperNode [2022-07-21 15:27:00,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 15:27:00,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 15:27:00,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 15:27:00,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 15:27:00,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (1/1) ... [2022-07-21 15:27:00,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (1/1) ... [2022-07-21 15:27:00,332 INFO L137 Inliner]: procedures = 689, calls = 2831, calls flagged for inlining = 316, calls inlined = 216, statements flattened = 5685 [2022-07-21 15:27:00,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 15:27:00,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 15:27:00,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 15:27:00,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 15:27:00,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (1/1) ... [2022-07-21 15:27:00,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (1/1) ... [2022-07-21 15:27:00,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (1/1) ... [2022-07-21 15:27:00,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (1/1) ... [2022-07-21 15:27:00,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (1/1) ... [2022-07-21 15:27:00,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (1/1) ... [2022-07-21 15:27:00,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (1/1) ... [2022-07-21 15:27:00,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 15:27:00,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 15:27:00,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 15:27:00,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 15:27:00,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (1/1) ... [2022-07-21 15:27:00,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:27:00,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:27:00,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 15:27:00,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 15:27:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_frontend_closed [2022-07-21 15:27:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_frontend_closed [2022-07-21 15:27:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-21 15:27:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-07-21 15:27:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-07-21 15:27:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 15:27:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 15:27:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 15:27:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 15:27:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-07-21 15:27:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-07-21 15:27:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2022-07-21 15:27:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2022-07-21 15:27:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:27:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:27:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2022-07-21 15:27:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2022-07-21 15:27:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2022-07-21 15:27:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2022-07-21 15:27:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_cancel_free_callback [2022-07-21 15:27:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_cancel_free_callback [2022-07-21 15:27:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-07-21 15:27:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-07-21 15:27:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-07-21 15:27:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-07-21 15:27:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-07-21 15:27:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-07-21 15:27:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure do_blkif_request [2022-07-21 15:27:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure do_blkif_request [2022-07-21 15:27:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-07-21 15:27:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-07-21 15:27:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 15:27:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 15:27:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure talk_to_blkback [2022-07-21 15:27:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure talk_to_blkback [2022-07-21 15:27:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 15:27:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 15:27:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-07-21 15:27:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-07-21 15:27:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure blkfront_setup_indirect [2022-07-21 15:27:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure blkfront_setup_indirect [2022-07-21 15:27:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 15:27:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 15:27:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-07-21 15:27:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-07-21 15:27:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 15:27:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 15:27:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 15:27:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 15:27:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-07-21 15:27:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-07-21 15:27:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_release_gendisk [2022-07-21 15:27:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_release_gendisk [2022-07-21 15:27:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure xlbd_release_minors [2022-07-21 15:27:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure xlbd_release_minors [2022-07-21 15:27:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_flush [2022-07-21 15:27:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_flush [2022-07-21 15:27:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-21 15:27:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-21 15:27:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-07-21 15:27:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-07-21 15:27:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-07-21 15:27:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-07-21 15:27:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-07-21 15:27:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-07-21 15:27:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-07-21 15:27:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-07-21 15:27:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 15:27:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 15:27:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2022-07-21 15:27:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2022-07-21 15:27:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-07-21 15:27:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-07-21 15:27:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-07-21 15:27:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-07-21 15:27:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-07-21 15:27:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-07-21 15:27:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 15:27:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 15:27:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-07-21 15:27:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-07-21 15:27:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 15:27:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 15:27:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 15:27:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 15:27:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-07-21 15:27:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-07-21 15:27:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-07-21 15:27:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-07-21 15:27:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure get_grant [2022-07-21 15:27:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure get_grant [2022-07-21 15:27:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-07-21 15:27:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-07-21 15:27:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-07-21 15:27:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-07-21 15:27:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 15:27:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-07-21 15:27:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-07-21 15:27:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2022-07-21 15:27:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2022-07-21 15:27:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-21 15:27:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-21 15:27:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 15:27:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-07-21 15:27:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-07-21 15:27:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 15:27:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 15:27:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 15:27:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2022-07-21 15:27:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2022-07-21 15:27:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 15:27:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 15:27:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 15:27:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 15:27:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-21 15:27:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-21 15:27:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-07-21 15:27:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-07-21 15:27:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-07-21 15:27:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-07-21 15:27:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-07-21 15:27:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-07-21 15:27:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure blkif_free [2022-07-21 15:27:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure blkif_free [2022-07-21 15:27:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-07-21 15:27:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-07-21 15:27:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2022-07-21 15:27:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2022-07-21 15:27:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 15:27:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 15:27:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 15:27:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-07-21 15:27:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-07-21 15:27:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2022-07-21 15:27:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2022-07-21 15:27:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-07-21 15:27:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-07-21 15:27:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 15:27:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 15:27:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 15:27:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 15:27:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 15:27:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 15:27:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 15:27:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 15:27:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2022-07-21 15:27:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure bdput [2022-07-21 15:27:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:27:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:27:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2022-07-21 15:27:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2022-07-21 15:27:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-07-21 15:27:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-07-21 15:27:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-07-21 15:27:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-07-21 15:27:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2022-07-21 15:27:00,793 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2022-07-21 15:27:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 15:27:00,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 15:27:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-07-21 15:27:00,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-07-21 15:27:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2022-07-21 15:27:00,793 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2022-07-21 15:27:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-07-21 15:27:00,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-07-21 15:27:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 15:27:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 15:27:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 15:27:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-07-21 15:27:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-07-21 15:27:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 15:27:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-07-21 15:27:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-07-21 15:27:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-07-21 15:27:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-07-21 15:27:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 15:27:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 15:27:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 15:27:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-21 15:27:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-21 15:27:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 15:27:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 15:27:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-07-21 15:27:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-07-21 15:27:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 15:27:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 15:27:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-07-21 15:27:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-07-21 15:27:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-07-21 15:27:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-07-21 15:27:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-07-21 15:27:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-07-21 15:27:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 15:27:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 15:27:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 15:27:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 15:27:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2022-07-21 15:27:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2022-07-21 15:27:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-21 15:27:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-21 15:27:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure bio_segments [2022-07-21 15:27:00,797 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_segments [2022-07-21 15:27:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-07-21 15:27:00,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-07-21 15:27:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-07-21 15:27:00,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-07-21 15:27:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-07-21 15:27:00,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-07-21 15:27:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-07-21 15:27:00,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-07-21 15:27:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-07-21 15:27:00,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-07-21 15:27:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-07-21 15:27:00,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-07-21 15:27:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 15:27:00,798 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 15:27:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-07-21 15:27:00,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-07-21 15:27:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-07-21 15:27:00,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-07-21 15:27:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 15:27:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 15:27:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 15:27:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 15:27:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure kick_pending_request_queues [2022-07-21 15:27:00,799 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_pending_request_queues [2022-07-21 15:27:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 15:27:00,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 15:27:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_96 [2022-07-21 15:27:00,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_96 [2022-07-21 15:27:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-07-21 15:27:00,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-07-21 15:27:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-07-21 15:27:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_97 [2022-07-21 15:27:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_97 [2022-07-21 15:27:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure bdget_disk [2022-07-21 15:27:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget_disk [2022-07-21 15:27:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2022-07-21 15:27:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2022-07-21 15:27:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2022-07-21 15:27:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2022-07-21 15:27:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 15:27:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 15:27:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-07-21 15:27:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-07-21 15:27:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure encode_disk_name [2022-07-21 15:27:00,801 INFO L138 BoogieDeclarations]: Found implementation of procedure encode_disk_name [2022-07-21 15:27:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-07-21 15:27:00,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-07-21 15:27:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2022-07-21 15:27:00,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2022-07-21 15:27:01,424 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 15:27:01,427 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 15:27:06,195 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 15:27:48,692 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 15:27:48,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 15:27:48,706 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-21 15:27:48,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:27:48 BoogieIcfgContainer [2022-07-21 15:27:48,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 15:27:48,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 15:27:48,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 15:27:48,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 15:27:48,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:26:55" (1/3) ... [2022-07-21 15:27:48,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5243b9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:27:48, skipping insertion in model container [2022-07-21 15:27:48,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:27:00" (2/3) ... [2022-07-21 15:27:48,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5243b9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:27:48, skipping insertion in model container [2022-07-21 15:27:48,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:27:48" (3/3) ... [2022-07-21 15:27:48,714 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-07-21 15:27:48,722 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 15:27:48,723 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-07-21 15:27:48,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 15:27:48,777 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@42832a4e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@48d72c71 [2022-07-21 15:27:48,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-07-21 15:27:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 1748 states, 1231 states have (on average 1.3249390739236393) internal successors, (1631), 1291 states have internal predecessors, (1631), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) [2022-07-21 15:27:48,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 15:27:48,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:27:48,794 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 15:27:48,794 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:27:48,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:27:48,797 INFO L85 PathProgramCache]: Analyzing trace with hash 978063183, now seen corresponding path program 1 times [2022-07-21 15:27:48,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:27:48,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339013399] [2022-07-21 15:27:48,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:27:48,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:27:48,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:27:48,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:27:48,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 15:27:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:27:49,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:27:49,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:27:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:27:49,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:27:49,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:27:49,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339013399] [2022-07-21 15:27:49,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339013399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:27:49,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:27:49,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:27:49,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587514057] [2022-07-21 15:27:49,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:27:49,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:27:49,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:27:49,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:27:49,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:27:49,894 INFO L87 Difference]: Start difference. First operand has 1748 states, 1231 states have (on average 1.3249390739236393) internal successors, (1631), 1291 states have internal predecessors, (1631), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-21 15:27:50,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:27:50,089 INFO L93 Difference]: Finished difference Result 3440 states and 4793 transitions. [2022-07-21 15:27:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:27:50,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 50 [2022-07-21 15:27:50,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:27:50,108 INFO L225 Difference]: With dead ends: 3440 [2022-07-21 15:27:50,109 INFO L226 Difference]: Without dead ends: 1712 [2022-07-21 15:27:50,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:27:50,122 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2230 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 4534 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 [2022-07-21 15:27:50,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2232 Valid, 4534 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:27:50,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2022-07-21 15:27:50,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1712. [2022-07-21 15:27:50,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 1202 states have (on average 1.2612312811980033) internal successors, (1516), 1258 states have internal predecessors, (1516), 370 states have call successors, (370), 108 states have call predecessors, (370), 107 states have return successors, (368), 366 states have call predecessors, (368), 368 states have call successors, (368) [2022-07-21 15:27:50,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2254 transitions. [2022-07-21 15:27:50,247 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2254 transitions. Word has length 50 [2022-07-21 15:27:50,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:27:50,248 INFO L495 AbstractCegarLoop]: Abstraction has 1712 states and 2254 transitions. [2022-07-21 15:27:50,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-21 15:27:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2254 transitions. [2022-07-21 15:27:50,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 15:27:50,251 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:27:50,251 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 15:27:50,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 15:27:50,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:27:50,467 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:27:50,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:27:50,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1447234358, now seen corresponding path program 1 times [2022-07-21 15:27:50,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:27:50,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300676744] [2022-07-21 15:27:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:27:50,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:27:50,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:27:50,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:27:50,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 15:27:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:27:51,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:27:51,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:27:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:27:51,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:27:51,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:27:51,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300676744] [2022-07-21 15:27:51,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300676744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:27:51,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:27:51,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:27:51,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113949006] [2022-07-21 15:27:51,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:27:51,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:27:51,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:27:51,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:27:51,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:27:51,460 INFO L87 Difference]: Start difference. First operand 1712 states and 2254 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-21 15:27:51,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:27:51,619 INFO L93 Difference]: Finished difference Result 3371 states and 4447 transitions. [2022-07-21 15:27:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:27:51,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2022-07-21 15:27:51,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:27:51,633 INFO L225 Difference]: With dead ends: 3371 [2022-07-21 15:27:51,634 INFO L226 Difference]: Without dead ends: 3369 [2022-07-21 15:27:51,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:27:51,635 INFO L413 NwaCegarLoop]: 2648 mSDtfsCounter, 2177 mSDsluCounter, 4857 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2179 SdHoareTripleChecker+Valid, 7505 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:27:51,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2179 Valid, 7505 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:27:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2022-07-21 15:27:51,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3175. [2022-07-21 15:27:51,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 2256 states have (on average 1.2650709219858156) internal successors, (2854), 2338 states have internal predecessors, (2854), 691 states have call successors, (691), 196 states have call predecessors, (691), 195 states have return successors, (697), 681 states have call predecessors, (697), 689 states have call successors, (697) [2022-07-21 15:27:51,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4242 transitions. [2022-07-21 15:27:51,749 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4242 transitions. Word has length 56 [2022-07-21 15:27:51,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:27:51,750 INFO L495 AbstractCegarLoop]: Abstraction has 3175 states and 4242 transitions. [2022-07-21 15:27:51,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-21 15:27:51,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4242 transitions. [2022-07-21 15:27:51,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-21 15:27:51,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:27:51,752 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 15:27:51,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 15:27:51,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:27:51,966 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:27:51,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:27:51,967 INFO L85 PathProgramCache]: Analyzing trace with hash 129867478, now seen corresponding path program 1 times [2022-07-21 15:27:51,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:27:51,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832319630] [2022-07-21 15:27:51,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:27:51,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:27:51,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:27:51,974 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:27:51,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 15:27:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:27:52,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:27:52,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:27:52,821 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:27:52,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:27:52,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:27:52,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832319630] [2022-07-21 15:27:52,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832319630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:27:52,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:27:52,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:27:52,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044391263] [2022-07-21 15:27:52,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:27:52,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:27:52,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:27:52,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:27:52,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:27:52,822 INFO L87 Difference]: Start difference. First operand 3175 states and 4242 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-21 15:27:52,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:27:52,983 INFO L93 Difference]: Finished difference Result 6309 states and 8436 transitions. [2022-07-21 15:27:52,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:27:52,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 62 [2022-07-21 15:27:52,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:27:53,010 INFO L225 Difference]: With dead ends: 6309 [2022-07-21 15:27:53,010 INFO L226 Difference]: Without dead ends: 6307 [2022-07-21 15:27:53,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:27:53,014 INFO L413 NwaCegarLoop]: 2674 mSDtfsCounter, 2202 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 7543 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:27:53,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2204 Valid, 7543 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:27:53,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2022-07-21 15:27:53,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6124. [2022-07-21 15:27:53,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6124 states, 4377 states have (on average 1.2670779072424034) internal successors, (5546), 4510 states have internal predecessors, (5546), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:27:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6124 states to 6124 states and 8248 transitions. [2022-07-21 15:27:53,176 INFO L78 Accepts]: Start accepts. Automaton has 6124 states and 8248 transitions. Word has length 62 [2022-07-21 15:27:53,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:27:53,176 INFO L495 AbstractCegarLoop]: Abstraction has 6124 states and 8248 transitions. [2022-07-21 15:27:53,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-21 15:27:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 6124 states and 8248 transitions. [2022-07-21 15:27:53,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 15:27:53,178 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:27:53,178 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 15:27:53,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 15:27:53,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:27:53,392 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:27:53,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:27:53,393 INFO L85 PathProgramCache]: Analyzing trace with hash 77930130, now seen corresponding path program 1 times [2022-07-21 15:27:53,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:27:53,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969833907] [2022-07-21 15:27:53,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:27:53,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:27:53,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:27:53,397 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:27:53,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 15:27:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:27:54,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:27:54,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:27:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:27:54,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:27:54,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:27:54,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969833907] [2022-07-21 15:27:54,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969833907] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:27:54,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:27:54,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:27:54,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12309628] [2022-07-21 15:27:54,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:27:54,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:27:54,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:27:54,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:27:54,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:27:54,337 INFO L87 Difference]: Start difference. First operand 6124 states and 8248 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 15:27:54,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:27:54,443 INFO L93 Difference]: Finished difference Result 6124 states and 8248 transitions. [2022-07-21 15:27:54,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:27:54,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 68 [2022-07-21 15:27:54,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:27:54,467 INFO L225 Difference]: With dead ends: 6124 [2022-07-21 15:27:54,467 INFO L226 Difference]: Without dead ends: 6122 [2022-07-21 15:27:54,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:27:54,472 INFO L413 NwaCegarLoop]: 2250 mSDtfsCounter, 2194 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 4498 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 [2022-07-21 15:27:54,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 4498 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:27:54,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2022-07-21 15:27:54,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6122. [2022-07-21 15:27:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 4376 states have (on average 1.2669104204753199) internal successors, (5544), 4508 states have internal predecessors, (5544), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:27:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 8246 transitions. [2022-07-21 15:27:54,634 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 8246 transitions. Word has length 68 [2022-07-21 15:27:54,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:27:54,634 INFO L495 AbstractCegarLoop]: Abstraction has 6122 states and 8246 transitions. [2022-07-21 15:27:54,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 15:27:54,635 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 8246 transitions. [2022-07-21 15:27:54,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 15:27:54,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:27:54,636 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 15:27:54,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 15:27:54,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:27:54,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:27:54,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:27:54,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1629920272, now seen corresponding path program 1 times [2022-07-21 15:27:54,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:27:54,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576444166] [2022-07-21 15:27:54,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:27:54,855 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:27:54,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:27:54,856 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:27:54,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 15:27:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:27:55,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:27:55,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:27:55,738 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:27:55,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:27:55,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:27:55,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576444166] [2022-07-21 15:27:55,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576444166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:27:55,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:27:55,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:27:55,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643212442] [2022-07-21 15:27:55,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:27:55,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:27:55,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:27:55,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:27:55,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:27:55,739 INFO L87 Difference]: Start difference. First operand 6122 states and 8246 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-21 15:27:55,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:27:55,852 INFO L93 Difference]: Finished difference Result 6122 states and 8246 transitions. [2022-07-21 15:27:55,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:27:55,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2022-07-21 15:27:55,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:27:55,878 INFO L225 Difference]: With dead ends: 6122 [2022-07-21 15:27:55,878 INFO L226 Difference]: Without dead ends: 6120 [2022-07-21 15:27:55,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:27:55,883 INFO L413 NwaCegarLoop]: 2248 mSDtfsCounter, 2186 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2188 SdHoareTripleChecker+Valid, 4494 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 [2022-07-21 15:27:55,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2188 Valid, 4494 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:27:55,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6120 states. [2022-07-21 15:27:56,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6120 to 6120. [2022-07-21 15:27:56,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6120 states, 4375 states have (on average 1.2667428571428572) internal successors, (5542), 4506 states have internal predecessors, (5542), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:27:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6120 states to 6120 states and 8244 transitions. [2022-07-21 15:27:56,080 INFO L78 Accepts]: Start accepts. Automaton has 6120 states and 8244 transitions. Word has length 74 [2022-07-21 15:27:56,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:27:56,080 INFO L495 AbstractCegarLoop]: Abstraction has 6120 states and 8244 transitions. [2022-07-21 15:27:56,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-21 15:27:56,081 INFO L276 IsEmpty]: Start isEmpty. Operand 6120 states and 8244 transitions. [2022-07-21 15:27:56,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 15:27:56,082 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:27:56,083 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 15:27:56,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 15:27:56,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:27:56,297 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:27:56,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:27:56,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1067365840, now seen corresponding path program 1 times [2022-07-21 15:27:56,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:27:56,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975974805] [2022-07-21 15:27:56,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:27:56,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:27:56,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:27:56,300 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:27:56,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 15:27:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:27:56,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:27:56,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:27:57,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:27:57,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:27:57,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:27:57,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975974805] [2022-07-21 15:27:57,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975974805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:27:57,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:27:57,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:27:57,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631645384] [2022-07-21 15:27:57,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:27:57,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:27:57,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:27:57,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:27:57,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:27:57,210 INFO L87 Difference]: Start difference. First operand 6120 states and 8244 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-21 15:27:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:27:57,376 INFO L93 Difference]: Finished difference Result 6120 states and 8244 transitions. [2022-07-21 15:27:57,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:27:57,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 80 [2022-07-21 15:27:57,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:27:57,399 INFO L225 Difference]: With dead ends: 6120 [2022-07-21 15:27:57,399 INFO L226 Difference]: Without dead ends: 6118 [2022-07-21 15:27:57,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:27:57,404 INFO L413 NwaCegarLoop]: 2246 mSDtfsCounter, 2178 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 4490 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 [2022-07-21 15:27:57,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2180 Valid, 4490 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:27:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6118 states. [2022-07-21 15:27:57,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6118 to 6118. [2022-07-21 15:27:57,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6118 states, 4374 states have (on average 1.266575217192501) internal successors, (5540), 4504 states have internal predecessors, (5540), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:27:57,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 8242 transitions. [2022-07-21 15:27:57,570 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 8242 transitions. Word has length 80 [2022-07-21 15:27:57,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:27:57,570 INFO L495 AbstractCegarLoop]: Abstraction has 6118 states and 8242 transitions. [2022-07-21 15:27:57,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-21 15:27:57,571 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 8242 transitions. [2022-07-21 15:27:57,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 15:27:57,572 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:27:57,572 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 15:27:57,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 15:27:57,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:27:57,786 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:27:57,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:27:57,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1911493740, now seen corresponding path program 1 times [2022-07-21 15:27:57,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:27:57,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809773571] [2022-07-21 15:27:57,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:27:57,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:27:57,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:27:57,789 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:27:57,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 15:27:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:27:58,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:27:58,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:27:58,712 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:27:58,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:27:58,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:27:58,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809773571] [2022-07-21 15:27:58,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809773571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:27:58,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:27:58,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:27:58,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767944944] [2022-07-21 15:27:58,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:27:58,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:27:58,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:27:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:27:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:27:58,713 INFO L87 Difference]: Start difference. First operand 6118 states and 8242 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-21 15:27:58,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:27:58,825 INFO L93 Difference]: Finished difference Result 6118 states and 8242 transitions. [2022-07-21 15:27:58,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:27:58,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 86 [2022-07-21 15:27:58,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:27:58,844 INFO L225 Difference]: With dead ends: 6118 [2022-07-21 15:27:58,844 INFO L226 Difference]: Without dead ends: 6116 [2022-07-21 15:27:58,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:27:58,848 INFO L413 NwaCegarLoop]: 2244 mSDtfsCounter, 2170 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 4486 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 [2022-07-21 15:27:58,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 4486 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:27:58,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6116 states. [2022-07-21 15:27:58,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6116 to 6116. [2022-07-21 15:27:58,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6116 states, 4373 states have (on average 1.26640750057169) internal successors, (5538), 4502 states have internal predecessors, (5538), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:27:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6116 states to 6116 states and 8240 transitions. [2022-07-21 15:27:59,008 INFO L78 Accepts]: Start accepts. Automaton has 6116 states and 8240 transitions. Word has length 86 [2022-07-21 15:27:59,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:27:59,009 INFO L495 AbstractCegarLoop]: Abstraction has 6116 states and 8240 transitions. [2022-07-21 15:27:59,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-21 15:27:59,009 INFO L276 IsEmpty]: Start isEmpty. Operand 6116 states and 8240 transitions. [2022-07-21 15:27:59,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-21 15:27:59,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:27:59,011 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 15:27:59,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 15:27:59,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:27:59,226 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:27:59,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:27:59,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1715100088, now seen corresponding path program 1 times [2022-07-21 15:27:59,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:27:59,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947117060] [2022-07-21 15:27:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:27:59,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:27:59,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:27:59,230 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:27:59,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 15:27:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:27:59,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:27:59,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:28:00,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:00,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:00,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947117060] [2022-07-21 15:28:00,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947117060] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:00,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:00,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:28:00,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872365393] [2022-07-21 15:28:00,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:00,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:00,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:00,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:00,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:00,190 INFO L87 Difference]: Start difference. First operand 6116 states and 8240 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 15:28:00,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:00,398 INFO L93 Difference]: Finished difference Result 6116 states and 8240 transitions. [2022-07-21 15:28:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:00,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2022-07-21 15:28:00,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:00,416 INFO L225 Difference]: With dead ends: 6116 [2022-07-21 15:28:00,417 INFO L226 Difference]: Without dead ends: 6114 [2022-07-21 15:28:00,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:00,422 INFO L413 NwaCegarLoop]: 2242 mSDtfsCounter, 2166 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2168 SdHoareTripleChecker+Valid, 4478 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 [2022-07-21 15:28:00,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2168 Valid, 4478 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:00,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6114 states. [2022-07-21 15:28:00,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6114 to 6114. [2022-07-21 15:28:00,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6114 states, 4372 states have (on average 1.2662397072278133) internal successors, (5536), 4500 states have internal predecessors, (5536), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:28:00,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6114 states to 6114 states and 8238 transitions. [2022-07-21 15:28:00,595 INFO L78 Accepts]: Start accepts. Automaton has 6114 states and 8238 transitions. Word has length 92 [2022-07-21 15:28:00,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:00,595 INFO L495 AbstractCegarLoop]: Abstraction has 6114 states and 8238 transitions. [2022-07-21 15:28:00,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 15:28:00,596 INFO L276 IsEmpty]: Start isEmpty. Operand 6114 states and 8238 transitions. [2022-07-21 15:28:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 15:28:00,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:00,597 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:00,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:00,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:00,814 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:00,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:00,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1274599851, now seen corresponding path program 1 times [2022-07-21 15:28:00,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:00,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281202945] [2022-07-21 15:28:00,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:00,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:00,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:00,817 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:00,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 15:28:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:01,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-21 15:28:01,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-07-21 15:28:02,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:02,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:02,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281202945] [2022-07-21 15:28:02,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1281202945] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:02,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:02,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 15:28:02,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859822719] [2022-07-21 15:28:02,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:02,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 15:28:02,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:02,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 15:28:02,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 15:28:02,604 INFO L87 Difference]: Start difference. First operand 6114 states and 8238 transitions. Second operand has 12 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-21 15:28:04,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:04,657 INFO L93 Difference]: Finished difference Result 12496 states and 16891 transitions. [2022-07-21 15:28:04,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 15:28:04,658 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 113 [2022-07-21 15:28:04,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:04,683 INFO L225 Difference]: With dead ends: 12496 [2022-07-21 15:28:04,683 INFO L226 Difference]: Without dead ends: 6405 [2022-07-21 15:28:04,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-07-21 15:28:04,707 INFO L413 NwaCegarLoop]: 2488 mSDtfsCounter, 596 mSDsluCounter, 19019 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 21507 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:28:04,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 21507 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 15:28:04,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-07-21 15:28:05,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6114. [2022-07-21 15:28:05,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6114 states, 4372 states have (on average 1.266010978956999) internal successors, (5535), 4499 states have internal predecessors, (5535), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:28:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6114 states to 6114 states and 8237 transitions. [2022-07-21 15:28:05,034 INFO L78 Accepts]: Start accepts. Automaton has 6114 states and 8237 transitions. Word has length 113 [2022-07-21 15:28:05,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:05,035 INFO L495 AbstractCegarLoop]: Abstraction has 6114 states and 8237 transitions. [2022-07-21 15:28:05,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-21 15:28:05,035 INFO L276 IsEmpty]: Start isEmpty. Operand 6114 states and 8237 transitions. [2022-07-21 15:28:05,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 15:28:05,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:05,037 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 15:28:05,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-21 15:28:05,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:05,274 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:05,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:05,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1056393611, now seen corresponding path program 1 times [2022-07-21 15:28:05,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:05,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135004696] [2022-07-21 15:28:05,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:05,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:05,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:05,277 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:05,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 15:28:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:05,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:28:05,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:28:06,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:06,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:06,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135004696] [2022-07-21 15:28:06,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135004696] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:06,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:06,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:28:06,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119384853] [2022-07-21 15:28:06,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:06,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:06,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:06,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:06,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:06,410 INFO L87 Difference]: Start difference. First operand 6114 states and 8237 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 15:28:06,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:06,571 INFO L93 Difference]: Finished difference Result 6114 states and 8237 transitions. [2022-07-21 15:28:06,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:06,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2022-07-21 15:28:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:06,589 INFO L225 Difference]: With dead ends: 6114 [2022-07-21 15:28:06,590 INFO L226 Difference]: Without dead ends: 6112 [2022-07-21 15:28:06,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:06,595 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 2157 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2159 SdHoareTripleChecker+Valid, 4476 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 [2022-07-21 15:28:06,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2159 Valid, 4476 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:06,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2022-07-21 15:28:06,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 6112. [2022-07-21 15:28:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6112 states, 4371 states have (on average 1.2658430565088081) internal successors, (5533), 4497 states have internal predecessors, (5533), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:28:06,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6112 states to 6112 states and 8235 transitions. [2022-07-21 15:28:06,791 INFO L78 Accepts]: Start accepts. Automaton has 6112 states and 8235 transitions. Word has length 94 [2022-07-21 15:28:06,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:06,792 INFO L495 AbstractCegarLoop]: Abstraction has 6112 states and 8235 transitions. [2022-07-21 15:28:06,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 15:28:06,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6112 states and 8235 transitions. [2022-07-21 15:28:06,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 15:28:06,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:06,796 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:06,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:07,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:07,031 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:07,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:07,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1717724750, now seen corresponding path program 1 times [2022-07-21 15:28:07,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:07,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360843601] [2022-07-21 15:28:07,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:07,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:07,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:07,045 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:07,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 15:28:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:07,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 15:28:07,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:08,652 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-07-21 15:28:08,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:08,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:08,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360843601] [2022-07-21 15:28:08,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360843601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:08,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:08,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:28:08,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395857099] [2022-07-21 15:28:08,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:08,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:28:08,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:08,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:28:08,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:28:08,654 INFO L87 Difference]: Start difference. First operand 6112 states and 8235 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-21 15:28:09,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:28:13,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:13,592 INFO L93 Difference]: Finished difference Result 12197 states and 16494 transitions. [2022-07-21 15:28:13,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:28:13,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2022-07-21 15:28:13,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:13,610 INFO L225 Difference]: With dead ends: 12197 [2022-07-21 15:28:13,611 INFO L226 Difference]: Without dead ends: 6112 [2022-07-21 15:28:13,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-21 15:28:13,627 INFO L413 NwaCegarLoop]: 2237 mSDtfsCounter, 2187 mSDsluCounter, 5954 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 8191 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-21 15:28:13,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2192 Valid, 8191 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-21 15:28:13,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2022-07-21 15:28:13,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 6112. [2022-07-21 15:28:13,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6112 states, 4371 states have (on average 1.2649279341111874) internal successors, (5529), 4497 states have internal predecessors, (5529), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:28:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6112 states to 6112 states and 8231 transitions. [2022-07-21 15:28:13,815 INFO L78 Accepts]: Start accepts. Automaton has 6112 states and 8231 transitions. Word has length 117 [2022-07-21 15:28:13,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:13,815 INFO L495 AbstractCegarLoop]: Abstraction has 6112 states and 8231 transitions. [2022-07-21 15:28:13,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-21 15:28:13,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6112 states and 8231 transitions. [2022-07-21 15:28:13,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 15:28:13,816 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:13,816 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:13,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-21 15:28:14,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:14,035 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:14,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1717784332, now seen corresponding path program 1 times [2022-07-21 15:28:14,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:14,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109838017] [2022-07-21 15:28:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:14,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:14,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:14,038 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:14,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 15:28:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:14,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:28:14,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:14,886 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-07-21 15:28:14,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:14,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:14,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109838017] [2022-07-21 15:28:14,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109838017] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:14,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:14,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:28:14,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157429828] [2022-07-21 15:28:14,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:14,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:14,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:14,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:14,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:14,888 INFO L87 Difference]: Start difference. First operand 6112 states and 8231 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-21 15:28:15,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:15,075 INFO L93 Difference]: Finished difference Result 6112 states and 8231 transitions. [2022-07-21 15:28:15,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:15,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2022-07-21 15:28:15,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:15,095 INFO L225 Difference]: With dead ends: 6112 [2022-07-21 15:28:15,095 INFO L226 Difference]: Without dead ends: 6110 [2022-07-21 15:28:15,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:15,099 INFO L413 NwaCegarLoop]: 2236 mSDtfsCounter, 23 mSDsluCounter, 4450 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 6686 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 [2022-07-21 15:28:15,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 6686 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:15,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6110 states. [2022-07-21 15:28:15,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6110 to 6110. [2022-07-21 15:28:15,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6110 states, 4370 states have (on average 1.2640732265446224) internal successors, (5524), 4495 states have internal predecessors, (5524), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:28:15,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6110 states to 6110 states and 8226 transitions. [2022-07-21 15:28:15,400 INFO L78 Accepts]: Start accepts. Automaton has 6110 states and 8226 transitions. Word has length 117 [2022-07-21 15:28:15,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:15,402 INFO L495 AbstractCegarLoop]: Abstraction has 6110 states and 8226 transitions. [2022-07-21 15:28:15,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-21 15:28:15,402 INFO L276 IsEmpty]: Start isEmpty. Operand 6110 states and 8226 transitions. [2022-07-21 15:28:15,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 15:28:15,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:15,404 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:15,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:15,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:15,642 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:15,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:15,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1910334215, now seen corresponding path program 1 times [2022-07-21 15:28:15,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:15,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251136096] [2022-07-21 15:28:15,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:15,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:15,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:15,663 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:15,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 15:28:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:16,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:28:16,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:16,682 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:28:16,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:16,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:16,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251136096] [2022-07-21 15:28:16,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251136096] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:16,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:16,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:28:16,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463395387] [2022-07-21 15:28:16,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:16,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:16,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:16,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:16,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:16,683 INFO L87 Difference]: Start difference. First operand 6110 states and 8226 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-21 15:28:16,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:16,944 INFO L93 Difference]: Finished difference Result 6110 states and 8226 transitions. [2022-07-21 15:28:16,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:16,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 100 [2022-07-21 15:28:16,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:16,962 INFO L225 Difference]: With dead ends: 6110 [2022-07-21 15:28:16,971 INFO L226 Difference]: Without dead ends: 6108 [2022-07-21 15:28:16,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:16,992 INFO L413 NwaCegarLoop]: 2234 mSDtfsCounter, 2146 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2148 SdHoareTripleChecker+Valid, 4466 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 [2022-07-21 15:28:16,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2148 Valid, 4466 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:16,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6108 states. [2022-07-21 15:28:17,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6108 to 6108. [2022-07-21 15:28:17,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 4369 states have (on average 1.2639047837033646) internal successors, (5522), 4493 states have internal predecessors, (5522), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:28:17,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 8224 transitions. [2022-07-21 15:28:17,420 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 8224 transitions. Word has length 100 [2022-07-21 15:28:17,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:17,420 INFO L495 AbstractCegarLoop]: Abstraction has 6108 states and 8224 transitions. [2022-07-21 15:28:17,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-21 15:28:17,421 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 8224 transitions. [2022-07-21 15:28:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-21 15:28:17,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:17,422 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:17,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:17,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:17,623 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:17,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:17,623 INFO L85 PathProgramCache]: Analyzing trace with hash -561025326, now seen corresponding path program 1 times [2022-07-21 15:28:17,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:17,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315133562] [2022-07-21 15:28:17,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:17,624 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:17,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:17,640 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:17,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 15:28:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:18,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:28:18,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-07-21 15:28:19,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:19,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:19,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315133562] [2022-07-21 15:28:19,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315133562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:19,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:19,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 15:28:19,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146672413] [2022-07-21 15:28:19,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:19,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:28:19,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:19,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:28:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:28:19,063 INFO L87 Difference]: Start difference. First operand 6108 states and 8224 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-21 15:28:19,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:19,308 INFO L93 Difference]: Finished difference Result 12179 states and 16459 transitions. [2022-07-21 15:28:19,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:28:19,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2022-07-21 15:28:19,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:19,345 INFO L225 Difference]: With dead ends: 12179 [2022-07-21 15:28:19,346 INFO L226 Difference]: Without dead ends: 6098 [2022-07-21 15:28:19,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:28:19,361 INFO L413 NwaCegarLoop]: 2230 mSDtfsCounter, 2160 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 2230 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 [2022-07-21 15:28:19,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 2230 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:19,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6098 states. [2022-07-21 15:28:19,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6098 to 6098. [2022-07-21 15:28:19,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6098 states, 4360 states have (on average 1.2626146788990826) internal successors, (5505), 4483 states have internal predecessors, (5505), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2022-07-21 15:28:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6098 states to 6098 states and 8207 transitions. [2022-07-21 15:28:19,564 INFO L78 Accepts]: Start accepts. Automaton has 6098 states and 8207 transitions. Word has length 121 [2022-07-21 15:28:19,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:19,564 INFO L495 AbstractCegarLoop]: Abstraction has 6098 states and 8207 transitions. [2022-07-21 15:28:19,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-21 15:28:19,565 INFO L276 IsEmpty]: Start isEmpty. Operand 6098 states and 8207 transitions. [2022-07-21 15:28:19,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 15:28:19,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:19,566 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 15:28:19,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-21 15:28:19,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:19,779 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:19,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:19,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1855653926, now seen corresponding path program 1 times [2022-07-21 15:28:19,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:19,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536887639] [2022-07-21 15:28:19,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:19,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:19,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:19,782 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:19,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 15:28:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:20,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-21 15:28:20,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:20,910 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-07-21 15:28:20,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:20,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:20,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536887639] [2022-07-21 15:28:20,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536887639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:20,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:20,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 15:28:20,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196695146] [2022-07-21 15:28:20,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:20,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 15:28:20,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:20,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 15:28:20,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-07-21 15:28:20,912 INFO L87 Difference]: Start difference. First operand 6098 states and 8207 transitions. Second operand has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-07-21 15:28:22,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:22,945 INFO L93 Difference]: Finished difference Result 6863 states and 9107 transitions. [2022-07-21 15:28:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 15:28:22,946 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 147 [2022-07-21 15:28:22,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:22,972 INFO L225 Difference]: With dead ends: 6863 [2022-07-21 15:28:22,973 INFO L226 Difference]: Without dead ends: 6140 [2022-07-21 15:28:22,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2022-07-21 15:28:22,982 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 44 mSDsluCounter, 26419 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 28640 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:28:22,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 28640 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 15:28:22,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2022-07-21 15:28:23,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 6110. [2022-07-21 15:28:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6110 states, 4368 states have (on average 1.2621336996336996) internal successors, (5513), 4491 states have internal predecessors, (5513), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2022-07-21 15:28:23,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6110 states to 6110 states and 8223 transitions. [2022-07-21 15:28:23,345 INFO L78 Accepts]: Start accepts. Automaton has 6110 states and 8223 transitions. Word has length 147 [2022-07-21 15:28:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:23,346 INFO L495 AbstractCegarLoop]: Abstraction has 6110 states and 8223 transitions. [2022-07-21 15:28:23,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-07-21 15:28:23,346 INFO L276 IsEmpty]: Start isEmpty. Operand 6110 states and 8223 transitions. [2022-07-21 15:28:23,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-21 15:28:23,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:23,347 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:23,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:23,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:23,559 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:23,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:23,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1613407075, now seen corresponding path program 1 times [2022-07-21 15:28:23,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:23,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286971129] [2022-07-21 15:28:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:23,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:23,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:23,566 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:23,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-21 15:28:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:24,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:28:24,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:24,893 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:28:24,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:24,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:24,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286971129] [2022-07-21 15:28:24,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286971129] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:24,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:24,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:28:24,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624461727] [2022-07-21 15:28:24,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:24,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:24,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:24,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:24,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:24,894 INFO L87 Difference]: Start difference. First operand 6110 states and 8223 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-21 15:28:25,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:25,097 INFO L93 Difference]: Finished difference Result 6110 states and 8223 transitions. [2022-07-21 15:28:25,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:25,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2022-07-21 15:28:25,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:25,122 INFO L225 Difference]: With dead ends: 6110 [2022-07-21 15:28:25,122 INFO L226 Difference]: Without dead ends: 6108 [2022-07-21 15:28:25,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:25,129 INFO L413 NwaCegarLoop]: 2227 mSDtfsCounter, 2133 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 4452 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 [2022-07-21 15:28:25,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 4452 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:25,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6108 states. [2022-07-21 15:28:25,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6108 to 6108. [2022-07-21 15:28:25,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 4367 states have (on average 1.2619647355163728) internal successors, (5511), 4489 states have internal predecessors, (5511), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2022-07-21 15:28:25,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 8221 transitions. [2022-07-21 15:28:25,388 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 8221 transitions. Word has length 106 [2022-07-21 15:28:25,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:25,389 INFO L495 AbstractCegarLoop]: Abstraction has 6108 states and 8221 transitions. [2022-07-21 15:28:25,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-21 15:28:25,389 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 8221 transitions. [2022-07-21 15:28:25,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 15:28:25,391 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:25,391 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:25,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:25,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:25,609 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:25,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1782742789, now seen corresponding path program 1 times [2022-07-21 15:28:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:25,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381775181] [2022-07-21 15:28:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:25,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:25,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:25,613 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:25,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-21 15:28:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:26,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:28:26,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:26,691 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:28:26,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:26,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:26,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381775181] [2022-07-21 15:28:26,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381775181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:26,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:26,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:28:26,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98183629] [2022-07-21 15:28:26,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:26,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:26,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:26,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:26,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:26,693 INFO L87 Difference]: Start difference. First operand 6108 states and 8221 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-21 15:28:26,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:26,932 INFO L93 Difference]: Finished difference Result 6108 states and 8221 transitions. [2022-07-21 15:28:26,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:26,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 112 [2022-07-21 15:28:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:26,966 INFO L225 Difference]: With dead ends: 6108 [2022-07-21 15:28:26,972 INFO L226 Difference]: Without dead ends: 6106 [2022-07-21 15:28:26,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:26,975 INFO L413 NwaCegarLoop]: 2225 mSDtfsCounter, 2125 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 4448 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 [2022-07-21 15:28:26,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 4448 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:26,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2022-07-21 15:28:27,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 6106. [2022-07-21 15:28:27,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 4366 states have (on average 1.2617956939990838) internal successors, (5509), 4487 states have internal predecessors, (5509), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2022-07-21 15:28:27,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 8219 transitions. [2022-07-21 15:28:27,283 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 8219 transitions. Word has length 112 [2022-07-21 15:28:27,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:27,283 INFO L495 AbstractCegarLoop]: Abstraction has 6106 states and 8219 transitions. [2022-07-21 15:28:27,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-21 15:28:27,284 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 8219 transitions. [2022-07-21 15:28:27,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 15:28:27,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:27,285 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:27,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:27,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:27,505 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:27,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:27,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1350917253, now seen corresponding path program 1 times [2022-07-21 15:28:27,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:27,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406524796] [2022-07-21 15:28:27,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:27,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:27,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:27,508 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:27,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-21 15:28:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:28,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:28:28,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:28,593 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:28:28,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:28,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:28,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406524796] [2022-07-21 15:28:28,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406524796] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:28,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:28,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:28:28,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384326629] [2022-07-21 15:28:28,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:28,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:28,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:28,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:28,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:28,594 INFO L87 Difference]: Start difference. First operand 6106 states and 8219 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-21 15:28:28,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:28,777 INFO L93 Difference]: Finished difference Result 6106 states and 8219 transitions. [2022-07-21 15:28:28,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:28,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2022-07-21 15:28:28,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:28,791 INFO L225 Difference]: With dead ends: 6106 [2022-07-21 15:28:28,792 INFO L226 Difference]: Without dead ends: 6104 [2022-07-21 15:28:28,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:28,794 INFO L413 NwaCegarLoop]: 2223 mSDtfsCounter, 2117 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 4444 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 [2022-07-21 15:28:28,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2119 Valid, 4444 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6104 states. [2022-07-21 15:28:29,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6104 to 6104. [2022-07-21 15:28:29,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6104 states, 4365 states have (on average 1.2616265750286368) internal successors, (5507), 4485 states have internal predecessors, (5507), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2022-07-21 15:28:29,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6104 states to 6104 states and 8217 transitions. [2022-07-21 15:28:29,091 INFO L78 Accepts]: Start accepts. Automaton has 6104 states and 8217 transitions. Word has length 118 [2022-07-21 15:28:29,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:29,092 INFO L495 AbstractCegarLoop]: Abstraction has 6104 states and 8217 transitions. [2022-07-21 15:28:29,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-21 15:28:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 6104 states and 8217 transitions. [2022-07-21 15:28:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-21 15:28:29,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:29,093 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:29,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:29,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:29,310 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:29,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:29,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2110545786, now seen corresponding path program 1 times [2022-07-21 15:28:29,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:29,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840867596] [2022-07-21 15:28:29,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:29,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:29,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:29,313 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:29,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-21 15:28:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:30,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:28:30,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:28:30,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:30,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:30,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840867596] [2022-07-21 15:28:30,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840867596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:30,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:30,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:28:30,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389185769] [2022-07-21 15:28:30,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:30,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:30,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:30,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:30,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:30,536 INFO L87 Difference]: Start difference. First operand 6104 states and 8217 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-07-21 15:28:30,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:30,763 INFO L93 Difference]: Finished difference Result 6104 states and 8217 transitions. [2022-07-21 15:28:30,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:30,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 124 [2022-07-21 15:28:30,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:30,777 INFO L225 Difference]: With dead ends: 6104 [2022-07-21 15:28:30,778 INFO L226 Difference]: Without dead ends: 6102 [2022-07-21 15:28:30,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:30,780 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 2109 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 4440 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 [2022-07-21 15:28:30,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2111 Valid, 4440 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:30,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6102 states. [2022-07-21 15:28:30,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6102 to 6102. [2022-07-21 15:28:30,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6102 states, 4364 states have (on average 1.2614573785517873) internal successors, (5505), 4483 states have internal predecessors, (5505), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2022-07-21 15:28:31,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6102 states to 6102 states and 8215 transitions. [2022-07-21 15:28:31,009 INFO L78 Accepts]: Start accepts. Automaton has 6102 states and 8215 transitions. Word has length 124 [2022-07-21 15:28:31,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:31,009 INFO L495 AbstractCegarLoop]: Abstraction has 6102 states and 8215 transitions. [2022-07-21 15:28:31,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-07-21 15:28:31,010 INFO L276 IsEmpty]: Start isEmpty. Operand 6102 states and 8215 transitions. [2022-07-21 15:28:31,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-21 15:28:31,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:31,016 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:31,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:31,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:31,229 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:31,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:31,230 INFO L85 PathProgramCache]: Analyzing trace with hash -510995911, now seen corresponding path program 1 times [2022-07-21 15:28:31,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:31,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045845752] [2022-07-21 15:28:31,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:31,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:31,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:31,232 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:31,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-21 15:28:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:31,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 15:28:31,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:32,106 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-07-21 15:28:32,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:32,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:32,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045845752] [2022-07-21 15:28:32,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045845752] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:32,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:32,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 15:28:32,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420214001] [2022-07-21 15:28:32,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:32,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 15:28:32,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:32,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 15:28:32,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 15:28:32,107 INFO L87 Difference]: Start difference. First operand 6102 states and 8215 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:28:33,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:33,499 INFO L93 Difference]: Finished difference Result 7726 states and 10447 transitions. [2022-07-21 15:28:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 15:28:33,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2022-07-21 15:28:33,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:33,520 INFO L225 Difference]: With dead ends: 7726 [2022-07-21 15:28:33,520 INFO L226 Difference]: Without dead ends: 6971 [2022-07-21 15:28:33,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-07-21 15:28:33,526 INFO L413 NwaCegarLoop]: 2380 mSDtfsCounter, 578 mSDsluCounter, 14147 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 16527 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 15:28:33,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 16527 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 15:28:33,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2022-07-21 15:28:33,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 6105. [2022-07-21 15:28:33,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6105 states, 4367 states have (on average 1.2612777650561027) internal successors, (5508), 4486 states have internal predecessors, (5508), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2022-07-21 15:28:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6105 states to 6105 states and 8218 transitions. [2022-07-21 15:28:33,806 INFO L78 Accepts]: Start accepts. Automaton has 6105 states and 8218 transitions. Word has length 168 [2022-07-21 15:28:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:33,807 INFO L495 AbstractCegarLoop]: Abstraction has 6105 states and 8218 transitions. [2022-07-21 15:28:33,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:28:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 6105 states and 8218 transitions. [2022-07-21 15:28:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-21 15:28:33,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:33,809 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:33,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:34,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:34,021 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:34,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:34,022 INFO L85 PathProgramCache]: Analyzing trace with hash -22258546, now seen corresponding path program 1 times [2022-07-21 15:28:34,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:34,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768412328] [2022-07-21 15:28:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:34,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:34,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:34,024 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:34,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-21 15:28:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:34,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-21 15:28:34,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 149 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-07-21 15:28:35,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:28:36,633 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-07-21 15:28:36,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:36,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768412328] [2022-07-21 15:28:36,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768412328] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 15:28:36,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 15:28:36,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 21 [2022-07-21 15:28:36,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993324591] [2022-07-21 15:28:36,634 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 15:28:36,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-21 15:28:36,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:36,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-21 15:28:36,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2022-07-21 15:28:36,635 INFO L87 Difference]: Start difference. First operand 6105 states and 8218 transitions. Second operand has 21 states, 20 states have (on average 3.85) internal successors, (77), 19 states have internal predecessors, (77), 8 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 9 states have call predecessors, (30), 8 states have call successors, (30) [2022-07-21 15:28:42,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:42,010 INFO L93 Difference]: Finished difference Result 7581 states and 10039 transitions. [2022-07-21 15:28:42,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-21 15:28:42,011 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.85) internal successors, (77), 19 states have internal predecessors, (77), 8 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 9 states have call predecessors, (30), 8 states have call successors, (30) Word has length 173 [2022-07-21 15:28:42,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:42,033 INFO L225 Difference]: With dead ends: 7581 [2022-07-21 15:28:42,034 INFO L226 Difference]: Without dead ends: 6254 [2022-07-21 15:28:42,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=375, Invalid=1695, Unknown=0, NotChecked=0, Total=2070 [2022-07-21 15:28:42,043 INFO L413 NwaCegarLoop]: 2281 mSDtfsCounter, 109 mSDsluCounter, 33507 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 35788 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:28:42,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 35788 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-21 15:28:42,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2022-07-21 15:28:42,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 6141. [2022-07-21 15:28:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6141 states, 4391 states have (on average 1.2598496925529492) internal successors, (5532), 4510 states have internal predecessors, (5532), 1356 states have call successors, (1356), 375 states have call predecessors, (1356), 374 states have return successors, (1378), 1335 states have call predecessors, (1378), 1354 states have call successors, (1378) [2022-07-21 15:28:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6141 states to 6141 states and 8266 transitions. [2022-07-21 15:28:42,373 INFO L78 Accepts]: Start accepts. Automaton has 6141 states and 8266 transitions. Word has length 173 [2022-07-21 15:28:42,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:42,374 INFO L495 AbstractCegarLoop]: Abstraction has 6141 states and 8266 transitions. [2022-07-21 15:28:42,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.85) internal successors, (77), 19 states have internal predecessors, (77), 8 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 9 states have call predecessors, (30), 8 states have call successors, (30) [2022-07-21 15:28:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 6141 states and 8266 transitions. [2022-07-21 15:28:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-21 15:28:42,375 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:42,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:42,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:42,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:42,591 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:42,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:42,592 INFO L85 PathProgramCache]: Analyzing trace with hash -918574393, now seen corresponding path program 1 times [2022-07-21 15:28:42,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:42,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554195084] [2022-07-21 15:28:42,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:42,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:42,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:42,594 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:42,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-21 15:28:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:43,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:28:43,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:28:44,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:44,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:44,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554195084] [2022-07-21 15:28:44,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554195084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:44,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:44,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:28:44,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477357343] [2022-07-21 15:28:44,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:44,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:44,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:44,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:44,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:44,026 INFO L87 Difference]: Start difference. First operand 6141 states and 8266 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-21 15:28:44,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:44,276 INFO L93 Difference]: Finished difference Result 6141 states and 8266 transitions. [2022-07-21 15:28:44,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:44,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2022-07-21 15:28:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:44,304 INFO L225 Difference]: With dead ends: 6141 [2022-07-21 15:28:44,304 INFO L226 Difference]: Without dead ends: 6139 [2022-07-21 15:28:44,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:44,310 INFO L413 NwaCegarLoop]: 2219 mSDtfsCounter, 2101 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 4436 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 [2022-07-21 15:28:44,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 4436 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:44,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2022-07-21 15:28:44,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6139. [2022-07-21 15:28:44,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6139 states, 4390 states have (on average 1.2596810933940774) internal successors, (5530), 4508 states have internal predecessors, (5530), 1356 states have call successors, (1356), 375 states have call predecessors, (1356), 374 states have return successors, (1378), 1335 states have call predecessors, (1378), 1354 states have call successors, (1378) [2022-07-21 15:28:44,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6139 states to 6139 states and 8264 transitions. [2022-07-21 15:28:44,636 INFO L78 Accepts]: Start accepts. Automaton has 6139 states and 8264 transitions. Word has length 130 [2022-07-21 15:28:44,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:44,636 INFO L495 AbstractCegarLoop]: Abstraction has 6139 states and 8264 transitions. [2022-07-21 15:28:44,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-21 15:28:44,637 INFO L276 IsEmpty]: Start isEmpty. Operand 6139 states and 8264 transitions. [2022-07-21 15:28:44,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-21 15:28:44,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:44,638 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 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, 1] [2022-07-21 15:28:44,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:44,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:44,852 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:44,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:44,853 INFO L85 PathProgramCache]: Analyzing trace with hash -412285246, now seen corresponding path program 1 times [2022-07-21 15:28:44,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:44,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95021655] [2022-07-21 15:28:44,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:44,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:44,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:44,856 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:44,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-21 15:28:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:46,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 15:28:46,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-07-21 15:28:46,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:46,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:46,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95021655] [2022-07-21 15:28:46,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95021655] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:46,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:46,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:28:46,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111377169] [2022-07-21 15:28:46,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:46,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:28:46,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:46,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:28:46,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:28:46,179 INFO L87 Difference]: Start difference. First operand 6139 states and 8264 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 15:28:47,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:47,688 INFO L93 Difference]: Finished difference Result 14684 states and 20191 transitions. [2022-07-21 15:28:47,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:28:47,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 161 [2022-07-21 15:28:47,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:47,715 INFO L225 Difference]: With dead ends: 14684 [2022-07-21 15:28:47,715 INFO L226 Difference]: Without dead ends: 8575 [2022-07-21 15:28:47,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:28:47,736 INFO L413 NwaCegarLoop]: 3126 mSDtfsCounter, 582 mSDsluCounter, 11673 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 14799 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:28:47,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 14799 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 15:28:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8575 states. [2022-07-21 15:28:48,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8575 to 6139. [2022-07-21 15:28:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6139 states, 4390 states have (on average 1.2587699316628702) internal successors, (5526), 4508 states have internal predecessors, (5526), 1356 states have call successors, (1356), 375 states have call predecessors, (1356), 374 states have return successors, (1378), 1335 states have call predecessors, (1378), 1354 states have call successors, (1378) [2022-07-21 15:28:48,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6139 states to 6139 states and 8260 transitions. [2022-07-21 15:28:48,049 INFO L78 Accepts]: Start accepts. Automaton has 6139 states and 8260 transitions. Word has length 161 [2022-07-21 15:28:48,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:48,050 INFO L495 AbstractCegarLoop]: Abstraction has 6139 states and 8260 transitions. [2022-07-21 15:28:48,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 15:28:48,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6139 states and 8260 transitions. [2022-07-21 15:28:48,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-21 15:28:48,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:48,052 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 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, 1] [2022-07-21 15:28:48,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:48,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:48,265 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:48,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash 288779332, now seen corresponding path program 1 times [2022-07-21 15:28:48,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:48,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302050972] [2022-07-21 15:28:48,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:48,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:48,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:48,268 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:48,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-21 15:28:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:49,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 15:28:49,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-07-21 15:28:50,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:50,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:50,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302050972] [2022-07-21 15:28:50,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302050972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:50,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:50,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:28:50,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572474521] [2022-07-21 15:28:50,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:50,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:28:50,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:50,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:28:50,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:50,118 INFO L87 Difference]: Start difference. First operand 6139 states and 8260 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-07-21 15:28:50,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:50,531 INFO L93 Difference]: Finished difference Result 6507 states and 8634 transitions. [2022-07-21 15:28:50,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:28:50,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 161 [2022-07-21 15:28:50,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:50,554 INFO L225 Difference]: With dead ends: 6507 [2022-07-21 15:28:50,555 INFO L226 Difference]: Without dead ends: 6505 [2022-07-21 15:28:50,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:28:50,560 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 1601 mSDsluCounter, 5090 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 7329 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:28:50,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 7329 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:50,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6505 states. [2022-07-21 15:28:50,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6505 to 6503. [2022-07-21 15:28:50,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 4642 states have (on average 1.2542007755277897) internal successors, (5822), 4760 states have internal predecessors, (5822), 1392 states have call successors, (1392), 451 states have call predecessors, (1392), 450 states have return successors, (1414), 1371 states have call predecessors, (1414), 1390 states have call successors, (1414) [2022-07-21 15:28:50,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 8628 transitions. [2022-07-21 15:28:50,907 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 8628 transitions. Word has length 161 [2022-07-21 15:28:50,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:50,908 INFO L495 AbstractCegarLoop]: Abstraction has 6503 states and 8628 transitions. [2022-07-21 15:28:50,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-07-21 15:28:50,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 8628 transitions. [2022-07-21 15:28:50,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-21 15:28:50,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:50,910 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:50,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:51,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:51,127 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:51,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:51,128 INFO L85 PathProgramCache]: Analyzing trace with hash 986839772, now seen corresponding path program 1 times [2022-07-21 15:28:51,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:51,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791208460] [2022-07-21 15:28:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:51,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:51,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:51,133 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:51,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-07-21 15:28:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:51,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:28:51,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:52,632 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:28:52,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:52,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:52,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791208460] [2022-07-21 15:28:52,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791208460] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:52,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:52,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:28:52,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198637431] [2022-07-21 15:28:52,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:52,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:52,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:52,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:52,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:52,634 INFO L87 Difference]: Start difference. First operand 6503 states and 8628 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-21 15:28:52,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:52,990 INFO L93 Difference]: Finished difference Result 6503 states and 8628 transitions. [2022-07-21 15:28:52,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:52,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 136 [2022-07-21 15:28:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:53,008 INFO L225 Difference]: With dead ends: 6503 [2022-07-21 15:28:53,009 INFO L226 Difference]: Without dead ends: 6501 [2022-07-21 15:28:53,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:53,012 INFO L413 NwaCegarLoop]: 2216 mSDtfsCounter, 2092 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 4430 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 [2022-07-21 15:28:53,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2094 Valid, 4430 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:53,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6501 states. [2022-07-21 15:28:53,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6501 to 6501. [2022-07-21 15:28:53,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6501 states, 4641 states have (on average 1.2540400775694893) internal successors, (5820), 4758 states have internal predecessors, (5820), 1392 states have call successors, (1392), 451 states have call predecessors, (1392), 450 states have return successors, (1414), 1371 states have call predecessors, (1414), 1390 states have call successors, (1414) [2022-07-21 15:28:53,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6501 states to 6501 states and 8626 transitions. [2022-07-21 15:28:53,406 INFO L78 Accepts]: Start accepts. Automaton has 6501 states and 8626 transitions. Word has length 136 [2022-07-21 15:28:53,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:53,407 INFO L495 AbstractCegarLoop]: Abstraction has 6501 states and 8626 transitions. [2022-07-21 15:28:53,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-21 15:28:53,407 INFO L276 IsEmpty]: Start isEmpty. Operand 6501 states and 8626 transitions. [2022-07-21 15:28:53,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 15:28:53,409 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:53,409 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:53,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:53,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:53,626 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:53,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:53,626 INFO L85 PathProgramCache]: Analyzing trace with hash -965099567, now seen corresponding path program 1 times [2022-07-21 15:28:53,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:53,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046011813] [2022-07-21 15:28:53,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:53,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:53,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:53,629 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:53,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-07-21 15:28:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:54,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:28:54,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:28:55,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:55,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:55,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046011813] [2022-07-21 15:28:55,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046011813] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:55,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:55,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:28:55,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276680960] [2022-07-21 15:28:55,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:55,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:28:55,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:55,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:28:55,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:28:55,175 INFO L87 Difference]: Start difference. First operand 6501 states and 8626 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-21 15:28:55,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:55,470 INFO L93 Difference]: Finished difference Result 6501 states and 8626 transitions. [2022-07-21 15:28:55,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:28:55,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 142 [2022-07-21 15:28:55,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:55,491 INFO L225 Difference]: With dead ends: 6501 [2022-07-21 15:28:55,491 INFO L226 Difference]: Without dead ends: 6499 [2022-07-21 15:28:55,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:28:55,496 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 2084 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2086 SdHoareTripleChecker+Valid, 4426 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 [2022-07-21 15:28:55,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2086 Valid, 4426 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:28:55,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2022-07-21 15:28:55,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 6499. [2022-07-21 15:28:55,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6499 states, 4640 states have (on average 1.2538793103448276) internal successors, (5818), 4756 states have internal predecessors, (5818), 1392 states have call successors, (1392), 451 states have call predecessors, (1392), 450 states have return successors, (1414), 1371 states have call predecessors, (1414), 1390 states have call successors, (1414) [2022-07-21 15:28:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6499 states to 6499 states and 8624 transitions. [2022-07-21 15:28:55,914 INFO L78 Accepts]: Start accepts. Automaton has 6499 states and 8624 transitions. Word has length 142 [2022-07-21 15:28:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:55,915 INFO L495 AbstractCegarLoop]: Abstraction has 6499 states and 8624 transitions. [2022-07-21 15:28:55,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-21 15:28:55,915 INFO L276 IsEmpty]: Start isEmpty. Operand 6499 states and 8624 transitions. [2022-07-21 15:28:55,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-21 15:28:55,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:55,918 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:55,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:56,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:56,132 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:56,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:56,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1206055100, now seen corresponding path program 1 times [2022-07-21 15:28:56,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:56,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743723013] [2022-07-21 15:28:56,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:56,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:56,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:56,135 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:56,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-07-21 15:28:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:28:57,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 15:28:57,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:28:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-07-21 15:28:57,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:28:57,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:28:57,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743723013] [2022-07-21 15:28:57,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743723013] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:28:57,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:28:57,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:28:57,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844665314] [2022-07-21 15:28:57,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:28:57,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:28:57,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:28:57,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:28:57,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:28:57,265 INFO L87 Difference]: Start difference. First operand 6499 states and 8624 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 15:28:58,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:28:58,731 INFO L93 Difference]: Finished difference Result 13544 states and 18085 transitions. [2022-07-21 15:28:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:28:58,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2022-07-21 15:28:58,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:28:58,759 INFO L225 Difference]: With dead ends: 13544 [2022-07-21 15:28:58,760 INFO L226 Difference]: Without dead ends: 7075 [2022-07-21 15:28:58,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:28:58,777 INFO L413 NwaCegarLoop]: 2619 mSDtfsCounter, 581 mSDsluCounter, 9653 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 12272 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:28:58,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 12272 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 15:28:58,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7075 states. [2022-07-21 15:28:59,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7075 to 6499. [2022-07-21 15:28:59,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6499 states, 4640 states have (on average 1.2530172413793104) internal successors, (5814), 4756 states have internal predecessors, (5814), 1392 states have call successors, (1392), 451 states have call predecessors, (1392), 450 states have return successors, (1414), 1371 states have call predecessors, (1414), 1390 states have call successors, (1414) [2022-07-21 15:28:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6499 states to 6499 states and 8620 transitions. [2022-07-21 15:28:59,140 INFO L78 Accepts]: Start accepts. Automaton has 6499 states and 8620 transitions. Word has length 168 [2022-07-21 15:28:59,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:28:59,141 INFO L495 AbstractCegarLoop]: Abstraction has 6499 states and 8620 transitions. [2022-07-21 15:28:59,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 15:28:59,141 INFO L276 IsEmpty]: Start isEmpty. Operand 6499 states and 8620 transitions. [2022-07-21 15:28:59,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-21 15:28:59,143 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:28:59,143 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:28:59,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-07-21 15:28:59,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:28:59,371 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:28:59,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:28:59,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1500564294, now seen corresponding path program 1 times [2022-07-21 15:28:59,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:28:59,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853664394] [2022-07-21 15:28:59,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:28:59,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:28:59,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:28:59,375 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:28:59,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-07-21 15:29:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:00,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 15:29:00,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:01,560 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-07-21 15:29:01,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:01,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:01,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853664394] [2022-07-21 15:29:01,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853664394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:01,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:01,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:29:01,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577146047] [2022-07-21 15:29:01,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:01,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:29:01,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:01,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:29:01,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:01,562 INFO L87 Difference]: Start difference. First operand 6499 states and 8620 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-07-21 15:29:01,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:01,969 INFO L93 Difference]: Finished difference Result 6992 states and 9127 transitions. [2022-07-21 15:29:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:29:01,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 168 [2022-07-21 15:29:01,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:01,993 INFO L225 Difference]: With dead ends: 6992 [2022-07-21 15:29:01,993 INFO L226 Difference]: Without dead ends: 6990 [2022-07-21 15:29:01,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:29:01,999 INFO L413 NwaCegarLoop]: 2247 mSDtfsCounter, 2068 mSDsluCounter, 4692 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 6939 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:01,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 6939 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:29:02,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6990 states. [2022-07-21 15:29:02,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6990 to 6900. [2022-07-21 15:29:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6900 states, 4897 states have (on average 1.244435368593016) internal successors, (6094), 5016 states have internal predecessors, (6094), 1460 states have call successors, (1460), 527 states have call predecessors, (1460), 526 states have return successors, (1482), 1436 states have call predecessors, (1482), 1458 states have call successors, (1482) [2022-07-21 15:29:02,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6900 states to 6900 states and 9036 transitions. [2022-07-21 15:29:02,383 INFO L78 Accepts]: Start accepts. Automaton has 6900 states and 9036 transitions. Word has length 168 [2022-07-21 15:29:02,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:02,383 INFO L495 AbstractCegarLoop]: Abstraction has 6900 states and 9036 transitions. [2022-07-21 15:29:02,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-07-21 15:29:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 6900 states and 9036 transitions. [2022-07-21 15:29:02,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 15:29:02,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:02,385 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:02,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2022-07-21 15:29:02,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:02,607 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:02,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:02,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1796441848, now seen corresponding path program 1 times [2022-07-21 15:29:02,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:02,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228206230] [2022-07-21 15:29:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:02,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:02,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:02,610 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:02,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-07-21 15:29:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:03,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:29:03,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:04,216 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:29:04,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:04,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:04,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228206230] [2022-07-21 15:29:04,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228206230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:04,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:04,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:29:04,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754208913] [2022-07-21 15:29:04,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:04,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:29:04,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:04,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:29:04,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:29:04,218 INFO L87 Difference]: Start difference. First operand 6900 states and 9036 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-21 15:29:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:04,613 INFO L93 Difference]: Finished difference Result 6900 states and 9036 transitions. [2022-07-21 15:29:04,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:29:04,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 148 [2022-07-21 15:29:04,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:04,633 INFO L225 Difference]: With dead ends: 6900 [2022-07-21 15:29:04,633 INFO L226 Difference]: Without dead ends: 6898 [2022-07-21 15:29:04,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:04,637 INFO L413 NwaCegarLoop]: 2211 mSDtfsCounter, 2075 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2077 SdHoareTripleChecker+Valid, 4420 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 [2022-07-21 15:29:04,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2077 Valid, 4420 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:29:04,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6898 states. [2022-07-21 15:29:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6898 to 6898. [2022-07-21 15:29:04,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6898 states, 4896 states have (on average 1.244281045751634) internal successors, (6092), 5014 states have internal predecessors, (6092), 1460 states have call successors, (1460), 527 states have call predecessors, (1460), 526 states have return successors, (1482), 1436 states have call predecessors, (1482), 1458 states have call successors, (1482) [2022-07-21 15:29:05,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6898 states to 6898 states and 9034 transitions. [2022-07-21 15:29:05,016 INFO L78 Accepts]: Start accepts. Automaton has 6898 states and 9034 transitions. Word has length 148 [2022-07-21 15:29:05,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:05,016 INFO L495 AbstractCegarLoop]: Abstraction has 6898 states and 9034 transitions. [2022-07-21 15:29:05,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-21 15:29:05,017 INFO L276 IsEmpty]: Start isEmpty. Operand 6898 states and 9034 transitions. [2022-07-21 15:29:05,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-21 15:29:05,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:05,019 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:05,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:05,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:05,236 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:05,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:05,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1238573022, now seen corresponding path program 1 times [2022-07-21 15:29:05,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:05,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770581338] [2022-07-21 15:29:05,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:05,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:05,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:05,239 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:05,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-07-21 15:29:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:05,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:29:05,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:06,786 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:29:06,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:06,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:06,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770581338] [2022-07-21 15:29:06,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770581338] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:06,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:06,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:29:06,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864033659] [2022-07-21 15:29:06,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:06,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:29:06,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:06,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:29:06,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:29:06,788 INFO L87 Difference]: Start difference. First operand 6898 states and 9034 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-07-21 15:29:07,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:07,145 INFO L93 Difference]: Finished difference Result 6898 states and 9034 transitions. [2022-07-21 15:29:07,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:29:07,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 154 [2022-07-21 15:29:07,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:07,167 INFO L225 Difference]: With dead ends: 6898 [2022-07-21 15:29:07,168 INFO L226 Difference]: Without dead ends: 6896 [2022-07-21 15:29:07,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:07,173 INFO L413 NwaCegarLoop]: 2209 mSDtfsCounter, 2067 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 4416 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 [2022-07-21 15:29:07,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 4416 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:29:07,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6896 states. [2022-07-21 15:29:07,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6896 to 6896. [2022-07-21 15:29:07,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6896 states, 4895 states have (on average 1.2441266598569969) internal successors, (6090), 5012 states have internal predecessors, (6090), 1460 states have call successors, (1460), 527 states have call predecessors, (1460), 526 states have return successors, (1482), 1436 states have call predecessors, (1482), 1458 states have call successors, (1482) [2022-07-21 15:29:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 9032 transitions. [2022-07-21 15:29:07,610 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 9032 transitions. Word has length 154 [2022-07-21 15:29:07,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:07,611 INFO L495 AbstractCegarLoop]: Abstraction has 6896 states and 9032 transitions. [2022-07-21 15:29:07,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-07-21 15:29:07,611 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 9032 transitions. [2022-07-21 15:29:07,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-21 15:29:07,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:07,613 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:07,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:07,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:07,831 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash 986633813, now seen corresponding path program 1 times [2022-07-21 15:29:07,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:07,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515593763] [2022-07-21 15:29:07,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:07,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:07,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:07,834 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:07,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-07-21 15:29:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:09,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 15:29:09,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-07-21 15:29:09,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:09,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:09,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515593763] [2022-07-21 15:29:09,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515593763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:09,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:09,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:29:09,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024132932] [2022-07-21 15:29:09,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:09,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:29:09,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:09,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:29:09,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:09,151 INFO L87 Difference]: Start difference. First operand 6896 states and 9032 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-21 15:29:10,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:10,326 INFO L93 Difference]: Finished difference Result 6908 states and 9038 transitions. [2022-07-21 15:29:10,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:29:10,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 180 [2022-07-21 15:29:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:10,345 INFO L225 Difference]: With dead ends: 6908 [2022-07-21 15:29:10,345 INFO L226 Difference]: Without dead ends: 6906 [2022-07-21 15:29:10,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:29:10,349 INFO L413 NwaCegarLoop]: 2355 mSDtfsCounter, 197 mSDsluCounter, 6870 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 9225 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:10,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 9225 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 15:29:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6906 states. [2022-07-21 15:29:10,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6906 to 6896. [2022-07-21 15:29:10,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6896 states, 4895 states have (on average 1.2433094994892748) internal successors, (6086), 5012 states have internal predecessors, (6086), 1460 states have call successors, (1460), 527 states have call predecessors, (1460), 526 states have return successors, (1482), 1436 states have call predecessors, (1482), 1458 states have call successors, (1482) [2022-07-21 15:29:10,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 9028 transitions. [2022-07-21 15:29:10,762 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 9028 transitions. Word has length 180 [2022-07-21 15:29:10,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:10,762 INFO L495 AbstractCegarLoop]: Abstraction has 6896 states and 9028 transitions. [2022-07-21 15:29:10,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-21 15:29:10,762 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 9028 transitions. [2022-07-21 15:29:10,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-21 15:29:10,775 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:10,775 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:10,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-07-21 15:29:10,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:10,995 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:10,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:10,996 INFO L85 PathProgramCache]: Analyzing trace with hash 883056991, now seen corresponding path program 1 times [2022-07-21 15:29:10,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:10,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049510075] [2022-07-21 15:29:10,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:10,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:10,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:10,998 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:11,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-07-21 15:29:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:11,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:29:11,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:12,635 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:29:12,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:12,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:12,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049510075] [2022-07-21 15:29:12,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049510075] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:12,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:12,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:29:12,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682694713] [2022-07-21 15:29:12,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:12,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:29:12,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:12,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:29:12,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:29:12,637 INFO L87 Difference]: Start difference. First operand 6896 states and 9028 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-21 15:29:13,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:13,006 INFO L93 Difference]: Finished difference Result 6896 states and 9028 transitions. [2022-07-21 15:29:13,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:29:13,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 160 [2022-07-21 15:29:13,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:13,026 INFO L225 Difference]: With dead ends: 6896 [2022-07-21 15:29:13,026 INFO L226 Difference]: Without dead ends: 6894 [2022-07-21 15:29:13,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:13,030 INFO L413 NwaCegarLoop]: 2207 mSDtfsCounter, 2059 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 4412 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 [2022-07-21 15:29:13,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2061 Valid, 4412 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:29:13,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6894 states. [2022-07-21 15:29:13,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6894 to 6894. [2022-07-21 15:29:13,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6894 states, 4894 states have (on average 1.2431548835308541) internal successors, (6084), 5010 states have internal predecessors, (6084), 1460 states have call successors, (1460), 527 states have call predecessors, (1460), 526 states have return successors, (1482), 1436 states have call predecessors, (1482), 1458 states have call successors, (1482) [2022-07-21 15:29:13,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6894 states to 6894 states and 9026 transitions. [2022-07-21 15:29:13,470 INFO L78 Accepts]: Start accepts. Automaton has 6894 states and 9026 transitions. Word has length 160 [2022-07-21 15:29:13,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:13,471 INFO L495 AbstractCegarLoop]: Abstraction has 6894 states and 9026 transitions. [2022-07-21 15:29:13,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-21 15:29:13,471 INFO L276 IsEmpty]: Start isEmpty. Operand 6894 states and 9026 transitions. [2022-07-21 15:29:13,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-21 15:29:13,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:13,473 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:13,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:13,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:13,690 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:13,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:13,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1353205139, now seen corresponding path program 1 times [2022-07-21 15:29:13,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:13,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071877589] [2022-07-21 15:29:13,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:13,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:13,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:13,692 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:13,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-07-21 15:29:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:14,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:29:14,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:29:15,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:15,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:15,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071877589] [2022-07-21 15:29:15,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071877589] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:15,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:15,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:29:15,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057177510] [2022-07-21 15:29:15,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:15,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:29:15,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:15,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:29:15,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:29:15,130 INFO L87 Difference]: Start difference. First operand 6894 states and 9026 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 15:29:15,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:15,484 INFO L93 Difference]: Finished difference Result 6894 states and 9026 transitions. [2022-07-21 15:29:15,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:29:15,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 166 [2022-07-21 15:29:15,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:15,503 INFO L225 Difference]: With dead ends: 6894 [2022-07-21 15:29:15,504 INFO L226 Difference]: Without dead ends: 6708 [2022-07-21 15:29:15,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:15,509 INFO L413 NwaCegarLoop]: 2206 mSDtfsCounter, 2050 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 4412 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 [2022-07-21 15:29:15,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2050 Valid, 4412 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:29:15,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6708 states. [2022-07-21 15:29:15,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6708 to 6708. [2022-07-21 15:29:15,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6708 states, 4783 states have (on average 1.2467070876019235) internal successors, (5963), 4895 states have internal predecessors, (5963), 1408 states have call successors, (1408), 506 states have call predecessors, (1408), 504 states have return successors, (1428), 1386 states have call predecessors, (1428), 1404 states have call successors, (1428) [2022-07-21 15:29:15,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6708 states to 6708 states and 8799 transitions. [2022-07-21 15:29:15,891 INFO L78 Accepts]: Start accepts. Automaton has 6708 states and 8799 transitions. Word has length 166 [2022-07-21 15:29:15,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:15,891 INFO L495 AbstractCegarLoop]: Abstraction has 6708 states and 8799 transitions. [2022-07-21 15:29:15,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 15:29:15,891 INFO L276 IsEmpty]: Start isEmpty. Operand 6708 states and 8799 transitions. [2022-07-21 15:29:15,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-21 15:29:15,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:15,893 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:15,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:16,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:16,107 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:16,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:16,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1055015745, now seen corresponding path program 1 times [2022-07-21 15:29:16,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:16,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138134165] [2022-07-21 15:29:16,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:16,109 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:16,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:16,110 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:16,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-07-21 15:29:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:17,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 15:29:17,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:17,544 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-07-21 15:29:17,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:17,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:17,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138134165] [2022-07-21 15:29:17,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138134165] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:17,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:17,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:29:17,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500068813] [2022-07-21 15:29:17,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:17,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:29:17,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:17,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:29:17,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:29:17,546 INFO L87 Difference]: Start difference. First operand 6708 states and 8799 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 15:29:18,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:18,153 INFO L93 Difference]: Finished difference Result 15724 states and 21069 transitions. [2022-07-21 15:29:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:29:18,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 194 [2022-07-21 15:29:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:18,186 INFO L225 Difference]: With dead ends: 15724 [2022-07-21 15:29:18,186 INFO L226 Difference]: Without dead ends: 9041 [2022-07-21 15:29:18,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:29:18,206 INFO L413 NwaCegarLoop]: 2934 mSDtfsCounter, 569 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 5134 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:18,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 5134 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:29:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9041 states. [2022-07-21 15:29:18,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9041 to 6724. [2022-07-21 15:29:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6724 states, 4795 states have (on average 1.246089676746611) internal successors, (5975), 4907 states have internal predecessors, (5975), 1412 states have call successors, (1412), 506 states have call predecessors, (1412), 504 states have return successors, (1432), 1390 states have call predecessors, (1432), 1408 states have call successors, (1432) [2022-07-21 15:29:18,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6724 states to 6724 states and 8819 transitions. [2022-07-21 15:29:18,720 INFO L78 Accepts]: Start accepts. Automaton has 6724 states and 8819 transitions. Word has length 194 [2022-07-21 15:29:18,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:18,720 INFO L495 AbstractCegarLoop]: Abstraction has 6724 states and 8819 transitions. [2022-07-21 15:29:18,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 15:29:18,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6724 states and 8819 transitions. [2022-07-21 15:29:18,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-07-21 15:29:18,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:18,723 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 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] [2022-07-21 15:29:18,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-07-21 15:29:18,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:18,939 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:18,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:18,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1114106794, now seen corresponding path program 1 times [2022-07-21 15:29:18,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:18,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193483868] [2022-07-21 15:29:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:18,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:18,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:18,943 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:18,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-07-21 15:29:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:19,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 15:29:19,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2022-07-21 15:29:20,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:20,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:20,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193483868] [2022-07-21 15:29:20,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193483868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:20,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:20,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:29:20,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654404033] [2022-07-21 15:29:20,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:20,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:29:20,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:20,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:29:20,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:20,905 INFO L87 Difference]: Start difference. First operand 6724 states and 8819 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-21 15:29:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:21,337 INFO L93 Difference]: Finished difference Result 7303 states and 9394 transitions. [2022-07-21 15:29:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:29:21,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 252 [2022-07-21 15:29:21,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:21,358 INFO L225 Difference]: With dead ends: 7303 [2022-07-21 15:29:21,358 INFO L226 Difference]: Without dead ends: 7301 [2022-07-21 15:29:21,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:29:21,362 INFO L413 NwaCegarLoop]: 2090 mSDtfsCounter, 1887 mSDsluCounter, 4408 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 6498 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:21,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1888 Valid, 6498 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:29:21,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2022-07-21 15:29:21,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 7092. [2022-07-21 15:29:21,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7092 states, 5039 states have (on average 1.2379440365151815) internal successors, (6238), 5152 states have internal predecessors, (6238), 1460 states have call successors, (1460), 582 states have call predecessors, (1460), 580 states have return successors, (1480), 1437 states have call predecessors, (1480), 1456 states have call successors, (1480) [2022-07-21 15:29:21,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7092 states to 7092 states and 9178 transitions. [2022-07-21 15:29:21,822 INFO L78 Accepts]: Start accepts. Automaton has 7092 states and 9178 transitions. Word has length 252 [2022-07-21 15:29:21,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:21,822 INFO L495 AbstractCegarLoop]: Abstraction has 7092 states and 9178 transitions. [2022-07-21 15:29:21,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-21 15:29:21,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7092 states and 9178 transitions. [2022-07-21 15:29:21,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-21 15:29:21,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:21,841 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:21,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:22,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:22,042 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:22,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:22,043 INFO L85 PathProgramCache]: Analyzing trace with hash -448820364, now seen corresponding path program 1 times [2022-07-21 15:29:22,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:22,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870395923] [2022-07-21 15:29:22,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:22,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:22,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:22,045 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:22,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-07-21 15:29:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:23,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1498 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 15:29:23,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2022-07-21 15:29:23,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:23,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:23,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870395923] [2022-07-21 15:29:23,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870395923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:23,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:23,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:29:23,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675251145] [2022-07-21 15:29:23,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:23,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:29:23,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:23,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:29:23,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:29:23,202 INFO L87 Difference]: Start difference. First operand 7092 states and 9178 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-21 15:29:23,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:23,769 INFO L93 Difference]: Finished difference Result 14795 states and 19303 transitions. [2022-07-21 15:29:23,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:29:23,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 212 [2022-07-21 15:29:23,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:23,791 INFO L225 Difference]: With dead ends: 14795 [2022-07-21 15:29:23,792 INFO L226 Difference]: Without dead ends: 7728 [2022-07-21 15:29:23,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:23,807 INFO L413 NwaCegarLoop]: 2195 mSDtfsCounter, 166 mSDsluCounter, 4208 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:23,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 6403 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:29:23,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7728 states. [2022-07-21 15:29:24,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7728 to 7416. [2022-07-21 15:29:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7416 states, 5259 states have (on average 1.2401597261836852) internal successors, (6522), 5372 states have internal predecessors, (6522), 1560 states have call successors, (1560), 586 states have call predecessors, (1560), 584 states have return successors, (1580), 1537 states have call predecessors, (1580), 1556 states have call successors, (1580) [2022-07-21 15:29:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7416 states to 7416 states and 9662 transitions. [2022-07-21 15:29:24,318 INFO L78 Accepts]: Start accepts. Automaton has 7416 states and 9662 transitions. Word has length 212 [2022-07-21 15:29:24,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:24,318 INFO L495 AbstractCegarLoop]: Abstraction has 7416 states and 9662 transitions. [2022-07-21 15:29:24,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-21 15:29:24,319 INFO L276 IsEmpty]: Start isEmpty. Operand 7416 states and 9662 transitions. [2022-07-21 15:29:24,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-21 15:29:24,321 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:24,321 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:24,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:24,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:24,536 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:24,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:24,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1292825866, now seen corresponding path program 1 times [2022-07-21 15:29:24,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:24,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55310814] [2022-07-21 15:29:24,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:24,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:24,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:24,539 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:24,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-07-21 15:29:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:25,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 1498 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:29:25,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:25,824 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-07-21 15:29:25,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:25,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:25,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55310814] [2022-07-21 15:29:25,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55310814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:25,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:25,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:29:25,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114405051] [2022-07-21 15:29:25,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:25,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:29:25,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:25,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:29:25,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:29:25,826 INFO L87 Difference]: Start difference. First operand 7416 states and 9662 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-21 15:29:26,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:26,618 INFO L93 Difference]: Finished difference Result 15047 states and 19683 transitions. [2022-07-21 15:29:26,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:29:26,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 212 [2022-07-21 15:29:26,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:26,647 INFO L225 Difference]: With dead ends: 15047 [2022-07-21 15:29:26,647 INFO L226 Difference]: Without dead ends: 7656 [2022-07-21 15:29:26,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:29:26,668 INFO L413 NwaCegarLoop]: 2059 mSDtfsCounter, 26 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 4106 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:26,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 4106 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:29:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7656 states. [2022-07-21 15:29:27,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7656 to 7424. [2022-07-21 15:29:27,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7424 states, 5267 states have (on average 1.2397949496867287) internal successors, (6530), 5380 states have internal predecessors, (6530), 1560 states have call successors, (1560), 586 states have call predecessors, (1560), 584 states have return successors, (1580), 1537 states have call predecessors, (1580), 1556 states have call successors, (1580) [2022-07-21 15:29:27,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7424 states to 7424 states and 9670 transitions. [2022-07-21 15:29:27,201 INFO L78 Accepts]: Start accepts. Automaton has 7424 states and 9670 transitions. Word has length 212 [2022-07-21 15:29:27,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:27,201 INFO L495 AbstractCegarLoop]: Abstraction has 7424 states and 9670 transitions. [2022-07-21 15:29:27,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-21 15:29:27,202 INFO L276 IsEmpty]: Start isEmpty. Operand 7424 states and 9670 transitions. [2022-07-21 15:29:27,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-21 15:29:27,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:27,204 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:27,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:27,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:27,429 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1794722598, now seen corresponding path program 1 times [2022-07-21 15:29:27,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:27,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225873507] [2022-07-21 15:29:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:27,431 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:27,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:27,432 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:27,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-07-21 15:29:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:28,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 15:29:28,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:28,904 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-07-21 15:29:28,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:28,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:28,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225873507] [2022-07-21 15:29:28,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225873507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:28,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:28,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:29:28,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778770586] [2022-07-21 15:29:28,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:28,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:29:28,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:28,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:29:28,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:29:28,905 INFO L87 Difference]: Start difference. First operand 7424 states and 9670 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 15:29:29,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:29,906 INFO L93 Difference]: Finished difference Result 17216 states and 22955 transitions. [2022-07-21 15:29:29,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:29:29,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 2 states have call successors, (26) Word has length 210 [2022-07-21 15:29:29,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:29,936 INFO L225 Difference]: With dead ends: 17216 [2022-07-21 15:29:29,937 INFO L226 Difference]: Without dead ends: 9817 [2022-07-21 15:29:29,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 15:29:29,953 INFO L413 NwaCegarLoop]: 2933 mSDtfsCounter, 572 mSDsluCounter, 13902 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 16835 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:29,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 16835 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:29:29,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2022-07-21 15:29:30,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 7448. [2022-07-21 15:29:30,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7448 states, 5283 states have (on average 1.239068710959682) internal successors, (6546), 5396 states have internal predecessors, (6546), 1560 states have call successors, (1560), 586 states have call predecessors, (1560), 592 states have return successors, (1592), 1545 states have call predecessors, (1592), 1556 states have call successors, (1592) [2022-07-21 15:29:30,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7448 states to 7448 states and 9698 transitions. [2022-07-21 15:29:30,560 INFO L78 Accepts]: Start accepts. Automaton has 7448 states and 9698 transitions. Word has length 210 [2022-07-21 15:29:30,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:30,561 INFO L495 AbstractCegarLoop]: Abstraction has 7448 states and 9698 transitions. [2022-07-21 15:29:30,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 15:29:30,561 INFO L276 IsEmpty]: Start isEmpty. Operand 7448 states and 9698 transitions. [2022-07-21 15:29:30,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-07-21 15:29:30,564 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:30,564 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 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] [2022-07-21 15:29:30,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2022-07-21 15:29:30,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:30,780 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:30,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1788680456, now seen corresponding path program 1 times [2022-07-21 15:29:30,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:30,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501635365] [2022-07-21 15:29:30,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:30,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:30,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:30,784 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:30,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-07-21 15:29:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:31,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 15:29:31,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2022-07-21 15:29:31,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:31,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:31,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501635365] [2022-07-21 15:29:31,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501635365] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:31,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:31,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:29:31,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664292910] [2022-07-21 15:29:31,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:31,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:29:31,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:31,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:29:31,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:31,786 INFO L87 Difference]: Start difference. First operand 7448 states and 9698 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-07-21 15:29:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:32,943 INFO L93 Difference]: Finished difference Result 7460 states and 9704 transitions. [2022-07-21 15:29:32,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:29:32,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 265 [2022-07-21 15:29:32,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:32,959 INFO L225 Difference]: With dead ends: 7460 [2022-07-21 15:29:32,959 INFO L226 Difference]: Without dead ends: 7458 [2022-07-21 15:29:32,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:29:32,962 INFO L413 NwaCegarLoop]: 2230 mSDtfsCounter, 235 mSDsluCounter, 6448 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 8678 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:32,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 8678 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 15:29:32,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7458 states. [2022-07-21 15:29:33,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7458 to 7448. [2022-07-21 15:29:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7448 states, 5283 states have (on average 1.2383115653984478) internal successors, (6542), 5396 states have internal predecessors, (6542), 1560 states have call successors, (1560), 586 states have call predecessors, (1560), 592 states have return successors, (1592), 1545 states have call predecessors, (1592), 1556 states have call successors, (1592) [2022-07-21 15:29:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7448 states to 7448 states and 9694 transitions. [2022-07-21 15:29:33,437 INFO L78 Accepts]: Start accepts. Automaton has 7448 states and 9694 transitions. Word has length 265 [2022-07-21 15:29:33,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:33,437 INFO L495 AbstractCegarLoop]: Abstraction has 7448 states and 9694 transitions. [2022-07-21 15:29:33,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-07-21 15:29:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7448 states and 9694 transitions. [2022-07-21 15:29:33,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-07-21 15:29:33,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:33,440 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:33,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2022-07-21 15:29:33,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:33,663 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:33,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:33,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1498542678, now seen corresponding path program 1 times [2022-07-21 15:29:33,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:33,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444530332] [2022-07-21 15:29:33,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:33,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:33,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:33,665 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:33,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-07-21 15:29:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:34,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1513 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 15:29:34,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:35,577 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-07-21 15:29:35,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:29:36,059 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-07-21 15:29:36,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:36,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444530332] [2022-07-21 15:29:36,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444530332] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:29:36,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:29:36,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:29:36,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463308804] [2022-07-21 15:29:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:36,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:29:36,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:36,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:29:36,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:29:36,060 INFO L87 Difference]: Start difference. First operand 7448 states and 9694 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-21 15:29:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:36,582 INFO L93 Difference]: Finished difference Result 7728 states and 9945 transitions. [2022-07-21 15:29:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:29:36,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 226 [2022-07-21 15:29:36,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:36,601 INFO L225 Difference]: With dead ends: 7728 [2022-07-21 15:29:36,602 INFO L226 Difference]: Without dead ends: 7726 [2022-07-21 15:29:36,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:29:36,606 INFO L413 NwaCegarLoop]: 2166 mSDtfsCounter, 1956 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 6656 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:36,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1959 Valid, 6656 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:29:36,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7726 states. [2022-07-21 15:29:37,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7726 to 7519. [2022-07-21 15:29:37,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7519 states, 5339 states have (on average 1.235811949803334) internal successors, (6598), 5449 states have internal predecessors, (6598), 1550 states have call successors, (1550), 612 states have call predecessors, (1550), 618 states have return successors, (1582), 1537 states have call predecessors, (1582), 1546 states have call successors, (1582) [2022-07-21 15:29:37,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7519 states to 7519 states and 9730 transitions. [2022-07-21 15:29:37,111 INFO L78 Accepts]: Start accepts. Automaton has 7519 states and 9730 transitions. Word has length 226 [2022-07-21 15:29:37,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:37,111 INFO L495 AbstractCegarLoop]: Abstraction has 7519 states and 9730 transitions. [2022-07-21 15:29:37,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-21 15:29:37,112 INFO L276 IsEmpty]: Start isEmpty. Operand 7519 states and 9730 transitions. [2022-07-21 15:29:37,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-21 15:29:37,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:37,114 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:37,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2022-07-21 15:29:37,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:37,329 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:37,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:37,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1919857412, now seen corresponding path program 1 times [2022-07-21 15:29:37,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:37,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022693119] [2022-07-21 15:29:37,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:37,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:37,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:37,332 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:37,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-07-21 15:29:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:38,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 15:29:38,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-07-21 15:29:38,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:29:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-07-21 15:29:38,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:38,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022693119] [2022-07-21 15:29:38,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022693119] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 15:29:38,764 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 15:29:38,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-21 15:29:38,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036507913] [2022-07-21 15:29:38,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 15:29:38,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:29:38,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:38,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:29:38,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:29:38,765 INFO L87 Difference]: Start difference. First operand 7519 states and 9730 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2022-07-21 15:29:39,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:39,895 INFO L93 Difference]: Finished difference Result 15733 states and 20555 transitions. [2022-07-21 15:29:39,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:29:39,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 231 [2022-07-21 15:29:39,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:39,919 INFO L225 Difference]: With dead ends: 15733 [2022-07-21 15:29:39,919 INFO L226 Difference]: Without dead ends: 8239 [2022-07-21 15:29:39,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:29:39,936 INFO L413 NwaCegarLoop]: 2099 mSDtfsCounter, 190 mSDsluCounter, 4105 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 6204 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:39,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 6204 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 15:29:39,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8239 states. [2022-07-21 15:29:40,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8239 to 8239. [2022-07-21 15:29:40,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8239 states, 5843 states have (on average 1.240116378572651) internal successors, (7246), 5953 states have internal predecessors, (7246), 1766 states have call successors, (1766), 612 states have call predecessors, (1766), 618 states have return successors, (1798), 1753 states have call predecessors, (1798), 1762 states have call successors, (1798) [2022-07-21 15:29:40,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8239 states to 8239 states and 10810 transitions. [2022-07-21 15:29:40,516 INFO L78 Accepts]: Start accepts. Automaton has 8239 states and 10810 transitions. Word has length 231 [2022-07-21 15:29:40,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:40,517 INFO L495 AbstractCegarLoop]: Abstraction has 8239 states and 10810 transitions. [2022-07-21 15:29:40,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2022-07-21 15:29:40,517 INFO L276 IsEmpty]: Start isEmpty. Operand 8239 states and 10810 transitions. [2022-07-21 15:29:40,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-21 15:29:40,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:40,520 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:40,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:40,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:40,724 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:40,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:40,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1181782151, now seen corresponding path program 1 times [2022-07-21 15:29:40,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:40,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931962597] [2022-07-21 15:29:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:40,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:40,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:40,728 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:40,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-07-21 15:29:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:42,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 2075 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 15:29:42,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:42,909 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-21 15:29:42,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:42,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:42,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931962597] [2022-07-21 15:29:42,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931962597] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:42,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:42,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:29:42,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056940609] [2022-07-21 15:29:42,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:42,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:29:42,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:42,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:29:42,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:29:42,911 INFO L87 Difference]: Start difference. First operand 8239 states and 10810 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 15:29:46,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:46,754 INFO L93 Difference]: Finished difference Result 17716 states and 23501 transitions. [2022-07-21 15:29:46,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:29:46,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 227 [2022-07-21 15:29:46,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:46,777 INFO L225 Difference]: With dead ends: 17716 [2022-07-21 15:29:46,777 INFO L226 Difference]: Without dead ends: 9502 [2022-07-21 15:29:46,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:29:46,791 INFO L413 NwaCegarLoop]: 2464 mSDtfsCounter, 482 mSDsluCounter, 9194 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 11658 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:46,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 11658 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 15:29:46,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9502 states. [2022-07-21 15:29:47,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9502 to 8239. [2022-07-21 15:29:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8239 states, 5843 states have (on average 1.2394317987335273) internal successors, (7242), 5953 states have internal predecessors, (7242), 1766 states have call successors, (1766), 612 states have call predecessors, (1766), 618 states have return successors, (1798), 1753 states have call predecessors, (1798), 1762 states have call successors, (1798) [2022-07-21 15:29:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8239 states to 8239 states and 10806 transitions. [2022-07-21 15:29:47,340 INFO L78 Accepts]: Start accepts. Automaton has 8239 states and 10806 transitions. Word has length 227 [2022-07-21 15:29:47,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:47,340 INFO L495 AbstractCegarLoop]: Abstraction has 8239 states and 10806 transitions. [2022-07-21 15:29:47,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 15:29:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand 8239 states and 10806 transitions. [2022-07-21 15:29:47,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-21 15:29:47,344 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:47,344 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:47,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:47,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:47,563 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:47,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:47,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1742481929, now seen corresponding path program 1 times [2022-07-21 15:29:47,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:47,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904891865] [2022-07-21 15:29:47,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:47,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:47,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:47,566 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:47,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-07-21 15:29:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:49,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 2075 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 15:29:49,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:49,710 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-07-21 15:29:49,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:49,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:49,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904891865] [2022-07-21 15:29:49,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904891865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:49,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:49,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:29:49,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814005894] [2022-07-21 15:29:49,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:49,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:29:49,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:49,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:29:49,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:29:49,712 INFO L87 Difference]: Start difference. First operand 8239 states and 10806 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 15:29:50,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:50,703 INFO L93 Difference]: Finished difference Result 17073 states and 22543 transitions. [2022-07-21 15:29:50,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:29:50,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 227 [2022-07-21 15:29:50,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:50,726 INFO L225 Difference]: With dead ends: 17073 [2022-07-21 15:29:50,726 INFO L226 Difference]: Without dead ends: 8859 [2022-07-21 15:29:50,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:50,746 INFO L413 NwaCegarLoop]: 2226 mSDtfsCounter, 168 mSDsluCounter, 4234 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 6460 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:50,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 6460 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:29:50,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8859 states. [2022-07-21 15:29:51,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8859 to 8247. [2022-07-21 15:29:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8247 states, 5851 states have (on average 1.2391044265937448) internal successors, (7250), 5961 states have internal predecessors, (7250), 1766 states have call successors, (1766), 612 states have call predecessors, (1766), 618 states have return successors, (1798), 1753 states have call predecessors, (1798), 1762 states have call successors, (1798) [2022-07-21 15:29:51,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8247 states to 8247 states and 10814 transitions. [2022-07-21 15:29:51,304 INFO L78 Accepts]: Start accepts. Automaton has 8247 states and 10814 transitions. Word has length 227 [2022-07-21 15:29:51,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:51,304 INFO L495 AbstractCegarLoop]: Abstraction has 8247 states and 10814 transitions. [2022-07-21 15:29:51,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 15:29:51,304 INFO L276 IsEmpty]: Start isEmpty. Operand 8247 states and 10814 transitions. [2022-07-21 15:29:51,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-21 15:29:51,307 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:51,307 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:51,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:51,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:51,534 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:51,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1441479133, now seen corresponding path program 1 times [2022-07-21 15:29:51,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:51,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382675986] [2022-07-21 15:29:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:51,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:51,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:51,537 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:51,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-07-21 15:29:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:53,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 2079 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:29:53,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:53,796 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-07-21 15:29:53,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:53,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:53,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382675986] [2022-07-21 15:29:53,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382675986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:53,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:53,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:29:53,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287922232] [2022-07-21 15:29:53,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:53,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:29:53,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:53,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:29:53,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:29:53,799 INFO L87 Difference]: Start difference. First operand 8247 states and 10814 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 15:29:54,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:54,718 INFO L93 Difference]: Finished difference Result 16597 states and 21799 transitions. [2022-07-21 15:29:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:29:54,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 229 [2022-07-21 15:29:54,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:54,751 INFO L225 Difference]: With dead ends: 16597 [2022-07-21 15:29:54,751 INFO L226 Difference]: Without dead ends: 8375 [2022-07-21 15:29:54,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:29:54,767 INFO L413 NwaCegarLoop]: 2052 mSDtfsCounter, 26 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 4088 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:54,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 4088 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:29:54,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8375 states. [2022-07-21 15:29:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8375 to 8255. [2022-07-21 15:29:55,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8255 states, 5859 states have (on average 1.2387779484553678) internal successors, (7258), 5969 states have internal predecessors, (7258), 1766 states have call successors, (1766), 612 states have call predecessors, (1766), 618 states have return successors, (1798), 1753 states have call predecessors, (1798), 1762 states have call successors, (1798) [2022-07-21 15:29:55,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8255 states to 8255 states and 10822 transitions. [2022-07-21 15:29:55,315 INFO L78 Accepts]: Start accepts. Automaton has 8255 states and 10822 transitions. Word has length 229 [2022-07-21 15:29:55,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:55,316 INFO L495 AbstractCegarLoop]: Abstraction has 8255 states and 10822 transitions. [2022-07-21 15:29:55,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 15:29:55,316 INFO L276 IsEmpty]: Start isEmpty. Operand 8255 states and 10822 transitions. [2022-07-21 15:29:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-21 15:29:55,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:55,319 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:55,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:55,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:55,521 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:55,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:55,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1468713123, now seen corresponding path program 1 times [2022-07-21 15:29:55,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:55,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275177128] [2022-07-21 15:29:55,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:55,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:55,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:55,523 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:55,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-07-21 15:29:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:29:56,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 15:29:56,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:29:56,912 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-07-21 15:29:56,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:29:56,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:29:56,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275177128] [2022-07-21 15:29:56,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275177128] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:29:56,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:29:56,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:29:56,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830953418] [2022-07-21 15:29:56,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:29:56,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:29:56,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:29:56,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:29:56,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:29:56,913 INFO L87 Difference]: Start difference. First operand 8255 states and 10822 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 15:29:58,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:29:58,110 INFO L93 Difference]: Finished difference Result 8265 states and 10827 transitions. [2022-07-21 15:29:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:29:58,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 244 [2022-07-21 15:29:58,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:29:58,129 INFO L225 Difference]: With dead ends: 8265 [2022-07-21 15:29:58,130 INFO L226 Difference]: Without dead ends: 8263 [2022-07-21 15:29:58,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:29:58,134 INFO L413 NwaCegarLoop]: 2096 mSDtfsCounter, 157 mSDsluCounter, 6207 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 8303 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:29:58,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 8303 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 15:29:58,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8263 states. [2022-07-21 15:29:58,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8263 to 8253. [2022-07-21 15:29:58,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 5858 states have (on average 1.2381358825537727) internal successors, (7253), 5967 states have internal predecessors, (7253), 1766 states have call successors, (1766), 612 states have call predecessors, (1766), 618 states have return successors, (1798), 1753 states have call predecessors, (1798), 1762 states have call successors, (1798) [2022-07-21 15:29:58,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 10817 transitions. [2022-07-21 15:29:58,669 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 10817 transitions. Word has length 244 [2022-07-21 15:29:58,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:29:58,670 INFO L495 AbstractCegarLoop]: Abstraction has 8253 states and 10817 transitions. [2022-07-21 15:29:58,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 15:29:58,670 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 10817 transitions. [2022-07-21 15:29:58,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-21 15:29:58,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:29:58,674 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:29:58,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-07-21 15:29:58,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:29:58,879 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:29:58,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:29:58,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1595697635, now seen corresponding path program 1 times [2022-07-21 15:29:58,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:29:58,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744810709] [2022-07-21 15:29:58,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:29:58,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:29:58,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:29:58,882 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:29:58,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-07-21 15:30:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:30:01,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 2149 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 15:30:01,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:30:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-07-21 15:30:01,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:30:01,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:30:01,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744810709] [2022-07-21 15:30:01,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744810709] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:30:01,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:30:01,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:30:01,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002444576] [2022-07-21 15:30:01,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:30:01,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:30:01,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:30:01,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:30:01,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:30:01,201 INFO L87 Difference]: Start difference. First operand 8253 states and 10817 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-21 15:30:01,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:30:01,875 INFO L93 Difference]: Finished difference Result 16885 states and 22221 transitions. [2022-07-21 15:30:01,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:30:01,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 251 [2022-07-21 15:30:01,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:30:01,898 INFO L225 Difference]: With dead ends: 16885 [2022-07-21 15:30:01,898 INFO L226 Difference]: Without dead ends: 8657 [2022-07-21 15:30:01,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:30:01,917 INFO L413 NwaCegarLoop]: 2115 mSDtfsCounter, 174 mSDsluCounter, 4114 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 6229 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:30:01,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 6229 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:30:01,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8657 states. [2022-07-21 15:30:02,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8657 to 8261. [2022-07-21 15:30:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8261 states, 5866 states have (on average 1.2378111148994204) internal successors, (7261), 5975 states have internal predecessors, (7261), 1766 states have call successors, (1766), 612 states have call predecessors, (1766), 618 states have return successors, (1798), 1753 states have call predecessors, (1798), 1762 states have call successors, (1798) [2022-07-21 15:30:02,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8261 states to 8261 states and 10825 transitions. [2022-07-21 15:30:02,458 INFO L78 Accepts]: Start accepts. Automaton has 8261 states and 10825 transitions. Word has length 251 [2022-07-21 15:30:02,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:30:02,458 INFO L495 AbstractCegarLoop]: Abstraction has 8261 states and 10825 transitions. [2022-07-21 15:30:02,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-21 15:30:02,458 INFO L276 IsEmpty]: Start isEmpty. Operand 8261 states and 10825 transitions. [2022-07-21 15:30:02,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-21 15:30:02,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:30:02,462 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:30:02,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2022-07-21 15:30:02,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:30:02,684 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:30:02,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:30:02,684 INFO L85 PathProgramCache]: Analyzing trace with hash -395595606, now seen corresponding path program 1 times [2022-07-21 15:30:02,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:30:02,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711905008] [2022-07-21 15:30:02,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:30:02,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:30:02,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:30:02,687 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:30:02,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-07-21 15:30:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:30:04,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1608 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 15:30:04,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:30:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2022-07-21 15:30:04,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:30:04,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:30:04,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711905008] [2022-07-21 15:30:04,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711905008] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:30:04,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:30:04,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:30:04,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409029758] [2022-07-21 15:30:04,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:30:04,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:30:04,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:30:04,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:30:04,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:30:04,187 INFO L87 Difference]: Start difference. First operand 8261 states and 10825 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-21 15:30:05,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:30:05,360 INFO L93 Difference]: Finished difference Result 8263 states and 10826 transitions. [2022-07-21 15:30:05,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:30:05,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 270 [2022-07-21 15:30:05,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:30:05,384 INFO L225 Difference]: With dead ends: 8263 [2022-07-21 15:30:05,384 INFO L226 Difference]: Without dead ends: 8261 [2022-07-21 15:30:05,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:30:05,390 INFO L413 NwaCegarLoop]: 2131 mSDtfsCounter, 597 mSDsluCounter, 5790 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 7921 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:30:05,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 7921 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 15:30:05,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8261 states. [2022-07-21 15:30:05,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8261 to 8261. [2022-07-21 15:30:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8261 states, 5866 states have (on average 1.2364473235594955) internal successors, (7253), 5975 states have internal predecessors, (7253), 1766 states have call successors, (1766), 612 states have call predecessors, (1766), 618 states have return successors, (1798), 1753 states have call predecessors, (1798), 1762 states have call successors, (1798) [2022-07-21 15:30:05,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8261 states to 8261 states and 10817 transitions. [2022-07-21 15:30:05,940 INFO L78 Accepts]: Start accepts. Automaton has 8261 states and 10817 transitions. Word has length 270 [2022-07-21 15:30:05,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:30:05,940 INFO L495 AbstractCegarLoop]: Abstraction has 8261 states and 10817 transitions. [2022-07-21 15:30:05,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-21 15:30:05,984 INFO L276 IsEmpty]: Start isEmpty. Operand 8261 states and 10817 transitions. [2022-07-21 15:30:05,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-07-21 15:30:05,988 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:30:05,988 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 15:30:06,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-07-21 15:30:06,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:30:06,196 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:30:06,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:30:06,197 INFO L85 PathProgramCache]: Analyzing trace with hash -644228600, now seen corresponding path program 1 times [2022-07-21 15:30:06,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:30:06,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510544486] [2022-07-21 15:30:06,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:30:06,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:30:06,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:30:06,199 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:30:06,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-07-21 15:30:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:30:08,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 15:30:08,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:30:08,569 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-07-21 15:30:08,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:30:08,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:30:08,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510544486] [2022-07-21 15:30:08,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510544486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:30:08,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:30:08,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:30:08,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057884290] [2022-07-21 15:30:08,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:30:08,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:30:08,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:30:08,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:30:08,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:30:08,570 INFO L87 Difference]: Start difference. First operand 8261 states and 10817 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-21 15:30:09,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:30:09,175 INFO L93 Difference]: Finished difference Result 16513 states and 21637 transitions. [2022-07-21 15:30:09,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:30:09,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 323 [2022-07-21 15:30:09,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:30:09,201 INFO L225 Difference]: With dead ends: 16513 [2022-07-21 15:30:09,202 INFO L226 Difference]: Without dead ends: 8277 [2022-07-21 15:30:09,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:30:09,223 INFO L413 NwaCegarLoop]: 2054 mSDtfsCounter, 2 mSDsluCounter, 4102 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6156 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:30:09,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6156 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:30:09,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2022-07-21 15:30:09,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 8273. [2022-07-21 15:30:09,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8273 states, 5878 states have (on average 1.2359646138142226) internal successors, (7265), 5987 states have internal predecessors, (7265), 1766 states have call successors, (1766), 612 states have call predecessors, (1766), 618 states have return successors, (1798), 1753 states have call predecessors, (1798), 1762 states have call successors, (1798) [2022-07-21 15:30:09,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8273 states to 8273 states and 10829 transitions. [2022-07-21 15:30:09,861 INFO L78 Accepts]: Start accepts. Automaton has 8273 states and 10829 transitions. Word has length 323 [2022-07-21 15:30:09,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:30:09,862 INFO L495 AbstractCegarLoop]: Abstraction has 8273 states and 10829 transitions. [2022-07-21 15:30:09,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-21 15:30:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 8273 states and 10829 transitions. [2022-07-21 15:30:09,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-07-21 15:30:09,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:30:09,866 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 15:30:09,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-07-21 15:30:10,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:30:10,086 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:30:10,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:30:10,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1932703408, now seen corresponding path program 1 times [2022-07-21 15:30:10,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:30:10,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1331499563] [2022-07-21 15:30:10,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:30:10,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:30:10,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:30:10,089 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:30:10,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-07-21 15:30:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:30:12,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 2324 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-21 15:30:12,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:30:12,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-07-21 15:30:12,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-07-21 15:30:13,353 INFO L390 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 71 treesize of output 41 [2022-07-21 15:30:13,359 INFO L390 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 47 treesize of output 17 [2022-07-21 15:30:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-21 15:30:13,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:30:13,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:30:13,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1331499563] [2022-07-21 15:30:13,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1331499563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:30:13,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:30:13,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 15:30:13,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166228678] [2022-07-21 15:30:13,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:30:13,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 15:30:13,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:30:13,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 15:30:13,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-21 15:30:13,483 INFO L87 Difference]: Start difference. First operand 8273 states and 10829 transitions. Second operand has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 10 states have internal predecessors, (166), 3 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 15:30:17,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:22,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:24,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:34,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:36,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:38,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:40,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:42,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:46,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:48,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:50,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:52,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:54,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:30:54,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:30:54,949 INFO L93 Difference]: Finished difference Result 16617 states and 21777 transitions. [2022-07-21 15:30:54,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 15:30:54,965 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 10 states have internal predecessors, (166), 3 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 3 states have call successors, (34) Word has length 325 [2022-07-21 15:30:54,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:30:54,990 INFO L225 Difference]: With dead ends: 16617 [2022-07-21 15:30:54,990 INFO L226 Difference]: Without dead ends: 8369 [2022-07-21 15:30:55,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-07-21 15:30:55,007 INFO L413 NwaCegarLoop]: 2049 mSDtfsCounter, 16 mSDsluCounter, 22268 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 6 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 24317 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:30:55,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 24317 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 398 Invalid, 10 Unknown, 0 Unchecked, 40.3s Time] [2022-07-21 15:30:55,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8369 states. [2022-07-21 15:30:55,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8369 to 8341. [2022-07-21 15:30:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8341 states, 5926 states have (on average 1.2354033074586568) internal successors, (7321), 6035 states have internal predecessors, (7321), 1774 states have call successors, (1774), 612 states have call predecessors, (1774), 630 states have return successors, (1846), 1773 states have call predecessors, (1846), 1770 states have call successors, (1846) [2022-07-21 15:30:55,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8341 states to 8341 states and 10941 transitions. [2022-07-21 15:30:55,625 INFO L78 Accepts]: Start accepts. Automaton has 8341 states and 10941 transitions. Word has length 325 [2022-07-21 15:30:55,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:30:55,626 INFO L495 AbstractCegarLoop]: Abstraction has 8341 states and 10941 transitions. [2022-07-21 15:30:55,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 10 states have internal predecessors, (166), 3 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 15:30:55,626 INFO L276 IsEmpty]: Start isEmpty. Operand 8341 states and 10941 transitions. [2022-07-21 15:30:55,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-21 15:30:55,630 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:30:55,630 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 15:30:55,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2022-07-21 15:30:55,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:30:55,835 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-07-21 15:30:55,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:30:55,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1437516013, now seen corresponding path program 1 times [2022-07-21 15:30:55,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:30:55,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841006707] [2022-07-21 15:30:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:30:55,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:30:55,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:30:55,839 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:30:55,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-07-21 15:30:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:30:58,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 2371 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 15:30:58,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:30:58,633 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-07-21 15:30:58,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:30:58,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:30:58,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841006707] [2022-07-21 15:30:58,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841006707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:30:58,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:30:58,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:30:58,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702062321] [2022-07-21 15:30:58,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:30:58,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:30:58,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:30:58,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:30:58,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:30:58,634 INFO L87 Difference]: Start difference. First operand 8341 states and 10941 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-21 15:30:59,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:31:02,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:31:04,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []