./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1df63cbd0336246e03c8a08fdd7cd62b20ae4ea405c1b7aaed1bb78f9f0fa189 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:39:34,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:39:34,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:39:34,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:39:34,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:39:34,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:39:34,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:39:34,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:39:34,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:39:34,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:39:34,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:39:34,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:39:34,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:39:34,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:39:34,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:39:34,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:39:34,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:39:34,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:39:34,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:39:34,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:39:34,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:39:34,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:39:34,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:39:34,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:39:34,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:39:34,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:39:34,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:39:34,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:39:34,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:39:34,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:39:34,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:39:34,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:39:34,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:39:34,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:39:34,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:39:34,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:39:34,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:39:34,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:39:34,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:39:34,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:39:34,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:39:34,156 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:39:34,210 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:39:34,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:39:34,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:39:34,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:39:34,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:39:34,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:39:34,213 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:39:34,213 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:39:34,213 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:39:34,213 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:39:34,215 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:39:34,215 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:39:34,215 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:39:34,215 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:39:34,216 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:39:34,216 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:39:34,216 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:39:34,216 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:39:34,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:39:34,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:39:34,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:39:34,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:39:34,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:39:34,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:39:34,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:39:34,225 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:39:34,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:39:34,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:39:34,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:39:34,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:39:34,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:39:34,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:39:34,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:39:34,230 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:39:34,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:39:34,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:39:34,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:39:34,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:39:34,231 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df63cbd0336246e03c8a08fdd7cd62b20ae4ea405c1b7aaed1bb78f9f0fa189 [2021-11-25 18:39:34,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:39:34,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:39:34,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:39:34,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:39:34,571 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:39:34,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i [2021-11-25 18:39:34,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/data/8387f221c/63345c86f89f4617954108ad92498658/FLAGb2120a71f [2021-11-25 18:39:35,603 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:39:35,604 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i [2021-11-25 18:39:35,653 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/data/8387f221c/63345c86f89f4617954108ad92498658/FLAGb2120a71f [2021-11-25 18:39:36,053 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/data/8387f221c/63345c86f89f4617954108ad92498658 [2021-11-25 18:39:36,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:39:36,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:39:36,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:39:36,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:39:36,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:39:36,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:39:36" (1/1) ... [2021-11-25 18:39:36,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb12f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:36, skipping insertion in model container [2021-11-25 18:39:36,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:39:36" (1/1) ... [2021-11-25 18:39:36,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:39:36,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:39:38,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259112,259125] [2021-11-25 18:39:38,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259257,259270] [2021-11-25 18:39:38,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259403,259416] [2021-11-25 18:39:38,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259568,259581] [2021-11-25 18:39:38,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259726,259739] [2021-11-25 18:39:38,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259884,259897] [2021-11-25 18:39:38,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260042,260055] [2021-11-25 18:39:38,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260202,260215] [2021-11-25 18:39:38,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260361,260374] [2021-11-25 18:39:38,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260500,260513] [2021-11-25 18:39:38,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260642,260655] [2021-11-25 18:39:38,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260791,260804] [2021-11-25 18:39:38,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260930,260943] [2021-11-25 18:39:38,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261085,261098] [2021-11-25 18:39:38,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261245,261258] [2021-11-25 18:39:38,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261396,261409] [2021-11-25 18:39:38,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261547,261560] [2021-11-25 18:39:38,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261699,261712] [2021-11-25 18:39:38,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261848,261861] [2021-11-25 18:39:38,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261996,262009] [2021-11-25 18:39:38,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262153,262166] [2021-11-25 18:39:38,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262302,262315] [2021-11-25 18:39:38,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262458,262471] [2021-11-25 18:39:38,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262611,262624] [2021-11-25 18:39:38,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262757,262770] [2021-11-25 18:39:38,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262900,262913] [2021-11-25 18:39:38,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263052,263065] [2021-11-25 18:39:38,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263198,263211] [2021-11-25 18:39:38,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263343,263356] [2021-11-25 18:39:38,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263497,263510] [2021-11-25 18:39:38,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263648,263661] [2021-11-25 18:39:38,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263803,263816] [2021-11-25 18:39:38,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263955,263968] [2021-11-25 18:39:38,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264110,264123] [2021-11-25 18:39:38,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264274,264287] [2021-11-25 18:39:38,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264430,264443] [2021-11-25 18:39:38,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264594,264607] [2021-11-25 18:39:38,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264736,264749] [2021-11-25 18:39:38,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264894,264907] [2021-11-25 18:39:38,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265061,265074] [2021-11-25 18:39:38,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265220,265233] [2021-11-25 18:39:38,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265379,265392] [2021-11-25 18:39:38,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265528,265541] [2021-11-25 18:39:38,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265675,265688] [2021-11-25 18:39:38,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265814,265827] [2021-11-25 18:39:38,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265977,265990] [2021-11-25 18:39:38,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266143,266156] [2021-11-25 18:39:38,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266307,266320] [2021-11-25 18:39:38,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266472,266485] [2021-11-25 18:39:38,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266637,266650] [2021-11-25 18:39:38,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266803,266816] [2021-11-25 18:39:38,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266968,266981] [2021-11-25 18:39:38,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267135,267148] [2021-11-25 18:39:38,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267295,267308] [2021-11-25 18:39:38,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267457,267470] [2021-11-25 18:39:38,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267616,267629] [2021-11-25 18:39:38,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267762,267775] [2021-11-25 18:39:38,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267905,267918] [2021-11-25 18:39:38,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268049,268062] [2021-11-25 18:39:38,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268192,268205] [2021-11-25 18:39:38,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268336,268349] [2021-11-25 18:39:38,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268477,268490] [2021-11-25 18:39:38,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268615,268628] [2021-11-25 18:39:38,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268773,268786] [2021-11-25 18:39:38,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268932,268945] [2021-11-25 18:39:38,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269088,269101] [2021-11-25 18:39:38,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269237,269250] [2021-11-25 18:39:38,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269389,269402] [2021-11-25 18:39:38,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269540,269553] [2021-11-25 18:39:38,918 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269689,269702] [2021-11-25 18:39:38,918 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269841,269854] [2021-11-25 18:39:38,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269989,270002] [2021-11-25 18:39:38,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270142,270155] [2021-11-25 18:39:38,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270293,270306] [2021-11-25 18:39:38,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270443,270456] [2021-11-25 18:39:38,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270590,270603] [2021-11-25 18:39:38,922 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270741,270754] [2021-11-25 18:39:38,922 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270892,270905] [2021-11-25 18:39:38,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271040,271053] [2021-11-25 18:39:38,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271206,271219] [2021-11-25 18:39:38,924 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271375,271388] [2021-11-25 18:39:38,924 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271542,271555] [2021-11-25 18:39:38,925 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271710,271723] [2021-11-25 18:39:38,925 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271860,271873] [2021-11-25 18:39:38,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272007,272020] [2021-11-25 18:39:38,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272168,272181] [2021-11-25 18:39:38,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272338,272351] [2021-11-25 18:39:38,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272500,272513] [2021-11-25 18:39:38,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:39:38,955 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:39:39,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259112,259125] [2021-11-25 18:39:39,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259257,259270] [2021-11-25 18:39:39,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259403,259416] [2021-11-25 18:39:39,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259568,259581] [2021-11-25 18:39:39,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259726,259739] [2021-11-25 18:39:39,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259884,259897] [2021-11-25 18:39:39,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260042,260055] [2021-11-25 18:39:39,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260202,260215] [2021-11-25 18:39:39,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260361,260374] [2021-11-25 18:39:39,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260500,260513] [2021-11-25 18:39:39,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260642,260655] [2021-11-25 18:39:39,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260791,260804] [2021-11-25 18:39:39,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260930,260943] [2021-11-25 18:39:39,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261085,261098] [2021-11-25 18:39:39,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261245,261258] [2021-11-25 18:39:39,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261396,261409] [2021-11-25 18:39:39,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261547,261560] [2021-11-25 18:39:39,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261699,261712] [2021-11-25 18:39:39,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261848,261861] [2021-11-25 18:39:39,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261996,262009] [2021-11-25 18:39:39,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262153,262166] [2021-11-25 18:39:39,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262302,262315] [2021-11-25 18:39:39,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262458,262471] [2021-11-25 18:39:39,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262611,262624] [2021-11-25 18:39:39,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262757,262770] [2021-11-25 18:39:39,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262900,262913] [2021-11-25 18:39:39,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263052,263065] [2021-11-25 18:39:39,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263198,263211] [2021-11-25 18:39:39,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263343,263356] [2021-11-25 18:39:39,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263497,263510] [2021-11-25 18:39:39,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263648,263661] [2021-11-25 18:39:39,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263803,263816] [2021-11-25 18:39:39,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263955,263968] [2021-11-25 18:39:39,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264110,264123] [2021-11-25 18:39:39,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264274,264287] [2021-11-25 18:39:39,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264430,264443] [2021-11-25 18:39:39,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264594,264607] [2021-11-25 18:39:39,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264736,264749] [2021-11-25 18:39:39,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264894,264907] [2021-11-25 18:39:39,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265061,265074] [2021-11-25 18:39:39,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265220,265233] [2021-11-25 18:39:39,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265379,265392] [2021-11-25 18:39:39,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265528,265541] [2021-11-25 18:39:39,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265675,265688] [2021-11-25 18:39:39,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265814,265827] [2021-11-25 18:39:39,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265977,265990] [2021-11-25 18:39:39,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266143,266156] [2021-11-25 18:39:39,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266307,266320] [2021-11-25 18:39:39,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266472,266485] [2021-11-25 18:39:39,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266637,266650] [2021-11-25 18:39:39,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266803,266816] [2021-11-25 18:39:39,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266968,266981] [2021-11-25 18:39:39,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267135,267148] [2021-11-25 18:39:39,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267295,267308] [2021-11-25 18:39:39,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267457,267470] [2021-11-25 18:39:39,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267616,267629] [2021-11-25 18:39:39,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267762,267775] [2021-11-25 18:39:39,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267905,267918] [2021-11-25 18:39:39,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268049,268062] [2021-11-25 18:39:39,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268192,268205] [2021-11-25 18:39:39,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268336,268349] [2021-11-25 18:39:39,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268477,268490] [2021-11-25 18:39:39,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268615,268628] [2021-11-25 18:39:39,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268773,268786] [2021-11-25 18:39:39,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268932,268945] [2021-11-25 18:39:39,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269088,269101] [2021-11-25 18:39:39,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269237,269250] [2021-11-25 18:39:39,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269389,269402] [2021-11-25 18:39:39,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269540,269553] [2021-11-25 18:39:39,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269689,269702] [2021-11-25 18:39:39,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269841,269854] [2021-11-25 18:39:39,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269989,270002] [2021-11-25 18:39:39,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270142,270155] [2021-11-25 18:39:39,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270293,270306] [2021-11-25 18:39:39,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270443,270456] [2021-11-25 18:39:39,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270590,270603] [2021-11-25 18:39:39,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270741,270754] [2021-11-25 18:39:39,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270892,270905] [2021-11-25 18:39:39,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271040,271053] [2021-11-25 18:39:39,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271206,271219] [2021-11-25 18:39:39,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271375,271388] [2021-11-25 18:39:39,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271542,271555] [2021-11-25 18:39:39,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271710,271723] [2021-11-25 18:39:39,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271860,271873] [2021-11-25 18:39:39,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272007,272020] [2021-11-25 18:39:39,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272168,272181] [2021-11-25 18:39:39,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272338,272351] [2021-11-25 18:39:39,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272500,272513] [2021-11-25 18:39:39,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:39:39,619 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:39:39,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39 WrapperNode [2021-11-25 18:39:39,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:39:39,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:39:39,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:39:39,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:39:39,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (1/1) ... [2021-11-25 18:39:39,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (1/1) ... [2021-11-25 18:39:39,880 INFO L137 Inliner]: procedures = 508, calls = 1237, calls flagged for inlining = 228, calls inlined = 154, statements flattened = 2697 [2021-11-25 18:39:39,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:39:39,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:39:39,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:39:39,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:39:39,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (1/1) ... [2021-11-25 18:39:39,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (1/1) ... [2021-11-25 18:39:39,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (1/1) ... [2021-11-25 18:39:39,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (1/1) ... [2021-11-25 18:39:40,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (1/1) ... [2021-11-25 18:39:40,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (1/1) ... [2021-11-25 18:39:40,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (1/1) ... [2021-11-25 18:39:40,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:39:40,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:39:40,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:39:40,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:39:40,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (1/1) ... [2021-11-25 18:39:40,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:39:40,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:39:40,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:39:40,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:39:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 18:39:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 18:39:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:39:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:39:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:39:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:39:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 18:39:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 18:39:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-25 18:39:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-25 18:39:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usb_yurex [2021-11-25 18:39:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usb_yurex [2021-11-25 18:39:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 18:39:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 18:39:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 18:39:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 18:39:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 18:39:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 18:39:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:39:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:39:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:39:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:39:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 18:39:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 18:39:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:39:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 18:39:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 18:39:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 18:39:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 18:39:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:39:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 18:39:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 18:39:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:39:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:39:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 18:39:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 18:39:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:39:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 18:39:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 18:39:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 18:39:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 18:39:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 18:39:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 18:39:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-25 18:39:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-25 18:39:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 18:39:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 18:39:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 18:39:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 18:39:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-25 18:39:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-25 18:39:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 18:39:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 18:39:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:39:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:39:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:39:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:39:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:39:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 18:39:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:39:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:39:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 18:39:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 18:39:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:39:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:39:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-25 18:39:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-25 18:39:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_io_mutex_of_usb_yurex [2021-11-25 18:39:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_io_mutex_of_usb_yurex [2021-11-25 18:39:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:39:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:39:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 18:39:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 18:39:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:39:40,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:39:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-25 18:39:40,198 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-25 18:39:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-25 18:39:40,198 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-25 18:39:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:39:40,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:39:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 18:39:40,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 18:39:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 18:39:40,198 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 18:39:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 18:39:40,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 18:39:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-25 18:39:40,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-25 18:39:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 18:39:40,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 18:39:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:39:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 18:39:40,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 18:39:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:39:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-25 18:39:40,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-25 18:39:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_101 [2021-11-25 18:39:40,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_101 [2021-11-25 18:39:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:39:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 18:39:40,200 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 18:39:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 18:39:40,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 18:39:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-25 18:39:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-25 18:39:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:39:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:39:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:39:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:39:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-25 18:39:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-25 18:39:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-25 18:39:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-25 18:39:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 18:39:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 18:39:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 18:39:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 18:39:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 18:39:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 18:39:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 18:39:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 18:39:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-25 18:39:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-25 18:39:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 18:39:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 18:39:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_io_mutex_of_usb_yurex [2021-11-25 18:39:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_io_mutex_of_usb_yurex [2021-11-25 18:39:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:39:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:39:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 18:39:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 18:39:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2021-11-25 18:39:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2021-11-25 18:39:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:39:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 18:39:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 18:39:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:39:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:39:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 18:39:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 18:39:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-25 18:39:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-25 18:39:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:39:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:39:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 18:39:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 18:39:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:39:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure yurex_disconnect [2021-11-25 18:39:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure yurex_disconnect [2021-11-25 18:39:40,995 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:39:40,998 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:39:41,572 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:39:44,854 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:39:45,274 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:39:45,274 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 18:39:45,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:39:45 BoogieIcfgContainer [2021-11-25 18:39:45,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:39:45,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:39:45,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:39:45,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:39:45,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:39:36" (1/3) ... [2021-11-25 18:39:45,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55666063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:39:45, skipping insertion in model container [2021-11-25 18:39:45,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:39" (2/3) ... [2021-11-25 18:39:45,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55666063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:39:45, skipping insertion in model container [2021-11-25 18:39:45,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:39:45" (3/3) ... [2021-11-25 18:39:45,289 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i [2021-11-25 18:39:45,295 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:39:45,295 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-11-25 18:39:45,367 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:39:45,375 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:39:45,375 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-11-25 18:39:45,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 751 states, 426 states have (on average 1.3568075117370892) internal successors, (578), 477 states have internal predecessors, (578), 224 states have call successors, (224), 68 states have call predecessors, (224), 67 states have return successors, (219), 216 states have call predecessors, (219), 219 states have call successors, (219) [2021-11-25 18:39:45,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 18:39:45,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:39:45,420 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:39:45,421 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:39:45,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:39:45,426 INFO L85 PathProgramCache]: Analyzing trace with hash 2014753146, now seen corresponding path program 1 times [2021-11-25 18:39:45,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:39:45,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757584804] [2021-11-25 18:39:45,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:39:45,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:39:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:39:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:39:46,082 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:39:46,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757584804] [2021-11-25 18:39:46,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757584804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:39:46,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:39:46,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:39:46,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397661071] [2021-11-25 18:39:46,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:39:46,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:39:46,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:39:46,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:39:46,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:39:46,128 INFO L87 Difference]: Start difference. First operand has 751 states, 426 states have (on average 1.3568075117370892) internal successors, (578), 477 states have internal predecessors, (578), 224 states have call successors, (224), 68 states have call predecessors, (224), 67 states have return successors, (219), 216 states have call predecessors, (219), 219 states have call successors, (219) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 18:39:50,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:39:50,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:39:50,679 INFO L93 Difference]: Finished difference Result 1463 states and 2071 transitions. [2021-11-25 18:39:50,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:39:50,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2021-11-25 18:39:50,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:39:50,706 INFO L225 Difference]: With dead ends: 1463 [2021-11-25 18:39:50,706 INFO L226 Difference]: Without dead ends: 736 [2021-11-25 18:39:50,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:39:50,720 INFO L933 BasicCegarLoop]: 856 mSDtfsCounter, 963 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:39:50,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 1712 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-25 18:39:50,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2021-11-25 18:39:50,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2021-11-25 18:39:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 419 states have (on average 1.269689737470167) internal successors, (532), 465 states have internal predecessors, (532), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:39:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 968 transitions. [2021-11-25 18:39:50,866 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 968 transitions. Word has length 51 [2021-11-25 18:39:50,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:39:50,868 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 968 transitions. [2021-11-25 18:39:50,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 18:39:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 968 transitions. [2021-11-25 18:39:50,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-25 18:39:50,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:39:50,878 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:39:50,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:39:50,878 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:39:50,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:39:50,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1792623882, now seen corresponding path program 1 times [2021-11-25 18:39:50,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:39:50,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513669478] [2021-11-25 18:39:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:39:50,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:39:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:39:51,206 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:39:51,206 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:39:51,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513669478] [2021-11-25 18:39:51,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513669478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:39:51,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:39:51,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:39:51,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523109569] [2021-11-25 18:39:51,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:39:51,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:39:51,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:39:51,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:39:51,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:39:51,211 INFO L87 Difference]: Start difference. First operand 736 states and 968 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 18:39:54,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:39:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:39:55,030 INFO L93 Difference]: Finished difference Result 736 states and 968 transitions. [2021-11-25 18:39:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:39:55,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2021-11-25 18:39:55,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:39:55,037 INFO L225 Difference]: With dead ends: 736 [2021-11-25 18:39:55,038 INFO L226 Difference]: Without dead ends: 734 [2021-11-25 18:39:55,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:39:55,039 INFO L933 BasicCegarLoop]: 838 mSDtfsCounter, 943 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:39:55,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [945 Valid, 1676 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 18:39:55,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2021-11-25 18:39:55,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 734. [2021-11-25 18:39:55,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 418 states have (on average 1.2679425837320575) internal successors, (530), 463 states have internal predecessors, (530), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:39:55,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 966 transitions. [2021-11-25 18:39:55,109 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 966 transitions. Word has length 56 [2021-11-25 18:39:55,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:39:55,110 INFO L470 AbstractCegarLoop]: Abstraction has 734 states and 966 transitions. [2021-11-25 18:39:55,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 18:39:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 966 transitions. [2021-11-25 18:39:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-25 18:39:55,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:39:55,114 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:39:55,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:39:55,114 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:39:55,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:39:55,115 INFO L85 PathProgramCache]: Analyzing trace with hash -123902190, now seen corresponding path program 1 times [2021-11-25 18:39:55,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:39:55,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48620431] [2021-11-25 18:39:55,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:39:55,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:39:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:39:55,314 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:39:55,314 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:39:55,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48620431] [2021-11-25 18:39:55,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48620431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:39:55,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:39:55,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:39:55,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606622883] [2021-11-25 18:39:55,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:39:55,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:39:55,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:39:55,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:39:55,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:39:55,319 INFO L87 Difference]: Start difference. First operand 734 states and 966 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 18:39:58,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:39:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:39:59,434 INFO L93 Difference]: Finished difference Result 734 states and 966 transitions. [2021-11-25 18:39:59,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:39:59,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2021-11-25 18:39:59,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:39:59,444 INFO L225 Difference]: With dead ends: 734 [2021-11-25 18:39:59,445 INFO L226 Difference]: Without dead ends: 732 [2021-11-25 18:39:59,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:39:59,447 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 940 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:39:59,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 1672 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 18:39:59,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-11-25 18:39:59,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2021-11-25 18:39:59,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 417 states have (on average 1.2661870503597121) internal successors, (528), 461 states have internal predecessors, (528), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:39:59,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 964 transitions. [2021-11-25 18:39:59,528 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 964 transitions. Word has length 61 [2021-11-25 18:39:59,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:39:59,530 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 964 transitions. [2021-11-25 18:39:59,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 18:39:59,530 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 964 transitions. [2021-11-25 18:39:59,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 18:39:59,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:39:59,535 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:39:59,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:39:59,536 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:39:59,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:39:59,537 INFO L85 PathProgramCache]: Analyzing trace with hash -509407520, now seen corresponding path program 1 times [2021-11-25 18:39:59,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:39:59,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256707187] [2021-11-25 18:39:59,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:39:59,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:39:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:39:59,766 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:39:59,766 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:39:59,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256707187] [2021-11-25 18:39:59,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256707187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:39:59,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:39:59,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:39:59,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826356304] [2021-11-25 18:39:59,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:39:59,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:39:59,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:39:59,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:39:59,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:39:59,769 INFO L87 Difference]: Start difference. First operand 732 states and 964 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 18:40:03,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:03,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:03,908 INFO L93 Difference]: Finished difference Result 732 states and 964 transitions. [2021-11-25 18:40:03,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:40:03,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2021-11-25 18:40:03,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:03,917 INFO L225 Difference]: With dead ends: 732 [2021-11-25 18:40:03,917 INFO L226 Difference]: Without dead ends: 730 [2021-11-25 18:40:03,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:40:03,919 INFO L933 BasicCegarLoop]: 834 mSDtfsCounter, 937 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:03,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [939 Valid, 1668 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 18:40:03,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2021-11-25 18:40:03,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2021-11-25 18:40:03,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 416 states have (on average 1.2644230769230769) internal successors, (526), 459 states have internal predecessors, (526), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:03,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 962 transitions. [2021-11-25 18:40:03,985 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 962 transitions. Word has length 66 [2021-11-25 18:40:03,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:03,986 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 962 transitions. [2021-11-25 18:40:03,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 18:40:03,987 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 962 transitions. [2021-11-25 18:40:03,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-25 18:40:03,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:03,990 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:40:03,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:40:03,990 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:03,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:03,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1683012069, now seen corresponding path program 1 times [2021-11-25 18:40:03,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:03,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801711003] [2021-11-25 18:40:03,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:03,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:40:04,151 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:04,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801711003] [2021-11-25 18:40:04,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801711003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:04,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:04,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:40:04,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041836946] [2021-11-25 18:40:04,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:04,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:40:04,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:04,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:40:04,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:40:04,154 INFO L87 Difference]: Start difference. First operand 730 states and 962 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 18:40:07,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:08,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:08,027 INFO L93 Difference]: Finished difference Result 730 states and 962 transitions. [2021-11-25 18:40:08,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:40:08,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2021-11-25 18:40:08,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:08,035 INFO L225 Difference]: With dead ends: 730 [2021-11-25 18:40:08,035 INFO L226 Difference]: Without dead ends: 728 [2021-11-25 18:40:08,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:40:08,037 INFO L933 BasicCegarLoop]: 832 mSDtfsCounter, 934 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:08,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [936 Valid, 1664 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 18:40:08,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2021-11-25 18:40:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2021-11-25 18:40:08,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 415 states have (on average 1.2626506024096384) internal successors, (524), 457 states have internal predecessors, (524), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:08,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 960 transitions. [2021-11-25 18:40:08,120 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 960 transitions. Word has length 71 [2021-11-25 18:40:08,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:08,121 INFO L470 AbstractCegarLoop]: Abstraction has 728 states and 960 transitions. [2021-11-25 18:40:08,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 18:40:08,121 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 960 transitions. [2021-11-25 18:40:08,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-25 18:40:08,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:08,123 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:40:08,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:40:08,124 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:08,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:08,125 INFO L85 PathProgramCache]: Analyzing trace with hash 342727598, now seen corresponding path program 1 times [2021-11-25 18:40:08,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:08,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171379493] [2021-11-25 18:40:08,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:08,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:40:08,281 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:08,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171379493] [2021-11-25 18:40:08,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171379493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:08,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:08,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:40:08,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699085440] [2021-11-25 18:40:08,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:08,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:40:08,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:08,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:40:08,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:40:08,284 INFO L87 Difference]: Start difference. First operand 728 states and 960 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 18:40:12,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:14,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:14,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:14,501 INFO L93 Difference]: Finished difference Result 728 states and 960 transitions. [2021-11-25 18:40:14,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:40:14,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2021-11-25 18:40:14,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:14,508 INFO L225 Difference]: With dead ends: 728 [2021-11-25 18:40:14,509 INFO L226 Difference]: Without dead ends: 726 [2021-11-25 18:40:14,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:40:14,511 INFO L933 BasicCegarLoop]: 830 mSDtfsCounter, 931 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:14,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 1660 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-11-25 18:40:14,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-11-25 18:40:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 726. [2021-11-25 18:40:14,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 414 states have (on average 1.2608695652173914) internal successors, (522), 455 states have internal predecessors, (522), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:14,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 958 transitions. [2021-11-25 18:40:14,567 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 958 transitions. Word has length 76 [2021-11-25 18:40:14,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:14,567 INFO L470 AbstractCegarLoop]: Abstraction has 726 states and 958 transitions. [2021-11-25 18:40:14,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 18:40:14,568 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 958 transitions. [2021-11-25 18:40:14,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-25 18:40:14,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:14,570 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:40:14,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:40:14,570 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:14,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:14,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1956016123, now seen corresponding path program 1 times [2021-11-25 18:40:14,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:14,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095888043] [2021-11-25 18:40:14,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:14,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:40:14,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:14,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095888043] [2021-11-25 18:40:14,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095888043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:14,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:14,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:40:14,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356560699] [2021-11-25 18:40:14,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:14,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:40:14,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:14,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:40:14,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:40:14,704 INFO L87 Difference]: Start difference. First operand 726 states and 958 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 18:40:18,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:18,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:18,616 INFO L93 Difference]: Finished difference Result 726 states and 958 transitions. [2021-11-25 18:40:18,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:40:18,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 81 [2021-11-25 18:40:18,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:18,623 INFO L225 Difference]: With dead ends: 726 [2021-11-25 18:40:18,624 INFO L226 Difference]: Without dead ends: 724 [2021-11-25 18:40:18,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:40:18,626 INFO L933 BasicCegarLoop]: 828 mSDtfsCounter, 928 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:18,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 1656 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 18:40:18,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-11-25 18:40:18,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 724. [2021-11-25 18:40:18,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 413 states have (on average 1.2590799031476998) internal successors, (520), 453 states have internal predecessors, (520), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:18,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 956 transitions. [2021-11-25 18:40:18,693 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 956 transitions. Word has length 81 [2021-11-25 18:40:18,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:18,694 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 956 transitions. [2021-11-25 18:40:18,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 18:40:18,694 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 956 transitions. [2021-11-25 18:40:18,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-25 18:40:18,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:18,697 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:40:18,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:40:18,697 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:18,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:18,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1491525175, now seen corresponding path program 1 times [2021-11-25 18:40:18,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:18,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67346850] [2021-11-25 18:40:18,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:18,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:40:18,849 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:18,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67346850] [2021-11-25 18:40:18,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67346850] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:18,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:18,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:40:18,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777916249] [2021-11-25 18:40:18,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:18,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:40:18,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:18,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:40:18,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:40:18,852 INFO L87 Difference]: Start difference. First operand 724 states and 956 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:40:22,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:22,930 INFO L93 Difference]: Finished difference Result 724 states and 956 transitions. [2021-11-25 18:40:22,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:40:22,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2021-11-25 18:40:22,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:22,936 INFO L225 Difference]: With dead ends: 724 [2021-11-25 18:40:22,936 INFO L226 Difference]: Without dead ends: 722 [2021-11-25 18:40:22,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:40:22,938 INFO L933 BasicCegarLoop]: 826 mSDtfsCounter, 929 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:22,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 1648 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 18:40:22,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2021-11-25 18:40:22,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2021-11-25 18:40:22,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 412 states have (on average 1.2572815533980584) internal successors, (518), 451 states have internal predecessors, (518), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:22,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 954 transitions. [2021-11-25 18:40:22,990 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 954 transitions. Word has length 86 [2021-11-25 18:40:22,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:22,990 INFO L470 AbstractCegarLoop]: Abstraction has 722 states and 954 transitions. [2021-11-25 18:40:22,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:40:22,991 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 954 transitions. [2021-11-25 18:40:22,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-25 18:40:22,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:22,992 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:40:22,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:40:22,993 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:22,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:22,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1163527084, now seen corresponding path program 1 times [2021-11-25 18:40:22,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:22,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868091306] [2021-11-25 18:40:22,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:22,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:23,122 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:40:23,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:23,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868091306] [2021-11-25 18:40:23,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868091306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:23,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:23,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:40:23,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90611993] [2021-11-25 18:40:23,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:23,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:40:23,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:23,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:40:23,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:40:23,125 INFO L87 Difference]: Start difference. First operand 722 states and 954 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:40:26,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:26,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:26,884 INFO L93 Difference]: Finished difference Result 722 states and 954 transitions. [2021-11-25 18:40:26,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:40:26,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2021-11-25 18:40:26,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:26,891 INFO L225 Difference]: With dead ends: 722 [2021-11-25 18:40:26,894 INFO L226 Difference]: Without dead ends: 720 [2021-11-25 18:40:26,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:40:26,897 INFO L933 BasicCegarLoop]: 824 mSDtfsCounter, 921 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:26,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [923 Valid, 1648 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 18:40:26,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2021-11-25 18:40:26,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2021-11-25 18:40:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 411 states have (on average 1.2554744525547445) internal successors, (516), 449 states have internal predecessors, (516), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:26,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 952 transitions. [2021-11-25 18:40:26,962 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 952 transitions. Word has length 88 [2021-11-25 18:40:26,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:26,963 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 952 transitions. [2021-11-25 18:40:26,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:40:26,963 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 952 transitions. [2021-11-25 18:40:26,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-25 18:40:26,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:26,965 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:40:26,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:40:26,966 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:26,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:26,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2022890723, now seen corresponding path program 1 times [2021-11-25 18:40:26,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:26,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328812191] [2021-11-25 18:40:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:26,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:27,106 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:40:27,106 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:27,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328812191] [2021-11-25 18:40:27,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328812191] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:27,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:27,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:40:27,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683996503] [2021-11-25 18:40:27,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:27,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:40:27,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:27,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:40:27,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:40:27,109 INFO L87 Difference]: Start difference. First operand 720 states and 952 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 18:40:31,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:33,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:33,368 INFO L93 Difference]: Finished difference Result 720 states and 952 transitions. [2021-11-25 18:40:33,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:40:33,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2021-11-25 18:40:33,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:33,374 INFO L225 Difference]: With dead ends: 720 [2021-11-25 18:40:33,375 INFO L226 Difference]: Without dead ends: 718 [2021-11-25 18:40:33,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:40:33,376 INFO L933 BasicCegarLoop]: 822 mSDtfsCounter, 920 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:33,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 1644 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2021-11-25 18:40:33,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-11-25 18:40:33,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2021-11-25 18:40:33,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 410 states have (on average 1.2536585365853659) internal successors, (514), 447 states have internal predecessors, (514), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 950 transitions. [2021-11-25 18:40:33,432 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 950 transitions. Word has length 93 [2021-11-25 18:40:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:33,433 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 950 transitions. [2021-11-25 18:40:33,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 18:40:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 950 transitions. [2021-11-25 18:40:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-25 18:40:33,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:33,435 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:40:33,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 18:40:33,436 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:33,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:33,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1080032239, now seen corresponding path program 1 times [2021-11-25 18:40:33,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:33,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708352607] [2021-11-25 18:40:33,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:33,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:33,621 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:40:33,622 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:33,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708352607] [2021-11-25 18:40:33,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708352607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:33,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:33,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:40:33,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843919398] [2021-11-25 18:40:33,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:33,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:40:33,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:33,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:40:33,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:40:33,625 INFO L87 Difference]: Start difference. First operand 718 states and 950 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 18:40:38,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:38,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:38,595 INFO L93 Difference]: Finished difference Result 718 states and 950 transitions. [2021-11-25 18:40:38,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:40:38,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2021-11-25 18:40:38,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:38,603 INFO L225 Difference]: With dead ends: 718 [2021-11-25 18:40:38,603 INFO L226 Difference]: Without dead ends: 716 [2021-11-25 18:40:38,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:40:38,604 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 917 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:38,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [919 Valid, 1640 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-25 18:40:38,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-11-25 18:40:38,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-11-25 18:40:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 409 states have (on average 1.2518337408312958) internal successors, (512), 445 states have internal predecessors, (512), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:38,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 948 transitions. [2021-11-25 18:40:38,670 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 948 transitions. Word has length 98 [2021-11-25 18:40:38,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:38,671 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 948 transitions. [2021-11-25 18:40:38,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 18:40:38,671 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 948 transitions. [2021-11-25 18:40:38,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-25 18:40:38,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:38,674 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 18:40:38,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 18:40:38,674 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:38,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:38,675 INFO L85 PathProgramCache]: Analyzing trace with hash 817077590, now seen corresponding path program 1 times [2021-11-25 18:40:38,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:38,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592506328] [2021-11-25 18:40:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:38,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-25 18:40:38,944 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:38,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592506328] [2021-11-25 18:40:38,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592506328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:38,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:38,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:40:38,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67083852] [2021-11-25 18:40:38,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:38,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:40:38,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:38,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:40:38,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:40:38,947 INFO L87 Difference]: Start difference. First operand 716 states and 948 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 18:40:46,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:47,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:49,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:49,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:49,246 INFO L93 Difference]: Finished difference Result 716 states and 948 transitions. [2021-11-25 18:40:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:40:49,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2021-11-25 18:40:49,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:49,253 INFO L225 Difference]: With dead ends: 716 [2021-11-25 18:40:49,253 INFO L226 Difference]: Without dead ends: 714 [2021-11-25 18:40:49,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:40:49,255 INFO L933 BasicCegarLoop]: 819 mSDtfsCounter, 909 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:49,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 2839 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2021-11-25 18:40:49,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-11-25 18:40:49,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 714. [2021-11-25 18:40:49,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 408 states have (on average 1.25) internal successors, (510), 443 states have internal predecessors, (510), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:49,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 946 transitions. [2021-11-25 18:40:49,329 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 946 transitions. Word has length 129 [2021-11-25 18:40:49,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:49,331 INFO L470 AbstractCegarLoop]: Abstraction has 714 states and 946 transitions. [2021-11-25 18:40:49,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 18:40:49,331 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 946 transitions. [2021-11-25 18:40:49,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 18:40:49,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:49,334 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:40:49,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 18:40:49,335 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:49,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:49,335 INFO L85 PathProgramCache]: Analyzing trace with hash -183535052, now seen corresponding path program 1 times [2021-11-25 18:40:49,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:49,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523619632] [2021-11-25 18:40:49,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:49,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:40:49,547 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:49,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523619632] [2021-11-25 18:40:49,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523619632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:49,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:49,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:40:49,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734977999] [2021-11-25 18:40:49,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:49,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:40:49,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:49,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:40:49,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:40:49,550 INFO L87 Difference]: Start difference. First operand 714 states and 946 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 18:40:52,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:52,967 INFO L93 Difference]: Finished difference Result 714 states and 946 transitions. [2021-11-25 18:40:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:40:52,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2021-11-25 18:40:52,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:52,974 INFO L225 Difference]: With dead ends: 714 [2021-11-25 18:40:52,974 INFO L226 Difference]: Without dead ends: 712 [2021-11-25 18:40:52,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:40:52,979 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 912 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:52,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [914 Valid, 1632 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-25 18:40:52,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2021-11-25 18:40:53,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2021-11-25 18:40:53,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 407 states have (on average 1.2481572481572483) internal successors, (508), 441 states have internal predecessors, (508), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:53,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 944 transitions. [2021-11-25 18:40:53,050 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 944 transitions. Word has length 103 [2021-11-25 18:40:53,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:53,050 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 944 transitions. [2021-11-25 18:40:53,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 18:40:53,051 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 944 transitions. [2021-11-25 18:40:53,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-25 18:40:53,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:53,054 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 18:40:53,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 18:40:53,054 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:53,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1419811176, now seen corresponding path program 1 times [2021-11-25 18:40:53,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:53,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510201767] [2021-11-25 18:40:53,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:53,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:53,209 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-25 18:40:53,210 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:53,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510201767] [2021-11-25 18:40:53,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510201767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:53,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:53,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:40:53,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848427585] [2021-11-25 18:40:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:53,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:40:53,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:53,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:40:53,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:40:53,212 INFO L87 Difference]: Start difference. First operand 712 states and 944 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:40:55,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:55,680 INFO L93 Difference]: Finished difference Result 1387 states and 1849 transitions. [2021-11-25 18:40:55,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:40:55,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2021-11-25 18:40:55,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:55,685 INFO L225 Difference]: With dead ends: 1387 [2021-11-25 18:40:55,685 INFO L226 Difference]: Without dead ends: 708 [2021-11-25 18:40:55,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:40:55,689 INFO L933 BasicCegarLoop]: 812 mSDtfsCounter, 906 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:55,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [906 Valid, 812 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 18:40:55,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2021-11-25 18:40:55,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2021-11-25 18:40:55,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 404 states have (on average 1.245049504950495) internal successors, (503), 437 states have internal predecessors, (503), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:55,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 939 transitions. [2021-11-25 18:40:55,757 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 939 transitions. Word has length 135 [2021-11-25 18:40:55,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:55,757 INFO L470 AbstractCegarLoop]: Abstraction has 708 states and 939 transitions. [2021-11-25 18:40:55,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:40:55,758 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 939 transitions. [2021-11-25 18:40:55,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-25 18:40:55,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:55,760 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:40:55,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 18:40:55,761 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:55,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:55,762 INFO L85 PathProgramCache]: Analyzing trace with hash -400273685, now seen corresponding path program 1 times [2021-11-25 18:40:55,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:55,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763283841] [2021-11-25 18:40:55,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:55,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:55,900 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:40:55,900 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:55,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763283841] [2021-11-25 18:40:55,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763283841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:55,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:55,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:40:55,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517789462] [2021-11-25 18:40:55,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:55,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:40:55,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:55,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:40:55,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:40:55,903 INFO L87 Difference]: Start difference. First operand 708 states and 939 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 18:40:58,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:40:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:40:59,622 INFO L93 Difference]: Finished difference Result 708 states and 939 transitions. [2021-11-25 18:40:59,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:40:59,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2021-11-25 18:40:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:40:59,627 INFO L225 Difference]: With dead ends: 708 [2021-11-25 18:40:59,627 INFO L226 Difference]: Without dead ends: 706 [2021-11-25 18:40:59,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:40:59,629 INFO L933 BasicCegarLoop]: 809 mSDtfsCounter, 904 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:40:59,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [906 Valid, 1618 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-25 18:40:59,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-11-25 18:40:59,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2021-11-25 18:40:59,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 403 states have (on average 1.2431761786600497) internal successors, (501), 435 states have internal predecessors, (501), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:40:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 937 transitions. [2021-11-25 18:40:59,704 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 937 transitions. Word has length 108 [2021-11-25 18:40:59,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:40:59,705 INFO L470 AbstractCegarLoop]: Abstraction has 706 states and 937 transitions. [2021-11-25 18:40:59,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 18:40:59,705 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 937 transitions. [2021-11-25 18:40:59,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 18:40:59,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:40:59,708 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:40:59,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 18:40:59,709 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:40:59,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:40:59,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1601212895, now seen corresponding path program 1 times [2021-11-25 18:40:59,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:40:59,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401045370] [2021-11-25 18:40:59,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:40:59,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:40:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:40:59,851 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:40:59,851 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:40:59,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401045370] [2021-11-25 18:40:59,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401045370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:40:59,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:40:59,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:40:59,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702719871] [2021-11-25 18:40:59,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:40:59,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:40:59,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:40:59,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:40:59,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:40:59,854 INFO L87 Difference]: Start difference. First operand 706 states and 937 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 18:41:03,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:04,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:04,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:04,813 INFO L93 Difference]: Finished difference Result 706 states and 937 transitions. [2021-11-25 18:41:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:41:04,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2021-11-25 18:41:04,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:04,818 INFO L225 Difference]: With dead ends: 706 [2021-11-25 18:41:04,818 INFO L226 Difference]: Without dead ends: 704 [2021-11-25 18:41:04,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:04,819 INFO L933 BasicCegarLoop]: 807 mSDtfsCounter, 901 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:04,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 1614 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-11-25 18:41:04,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-11-25 18:41:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2021-11-25 18:41:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 402 states have (on average 1.2412935323383085) internal successors, (499), 433 states have internal predecessors, (499), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:41:04,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 935 transitions. [2021-11-25 18:41:04,886 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 935 transitions. Word has length 113 [2021-11-25 18:41:04,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:04,887 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 935 transitions. [2021-11-25 18:41:04,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 18:41:04,887 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 935 transitions. [2021-11-25 18:41:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-25 18:41:04,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:04,890 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:41:04,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 18:41:04,891 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:04,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1786357902, now seen corresponding path program 1 times [2021-11-25 18:41:04,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:04,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316281111] [2021-11-25 18:41:04,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:04,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:41:05,026 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:05,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316281111] [2021-11-25 18:41:05,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316281111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:05,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:41:05,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:41:05,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848558451] [2021-11-25 18:41:05,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:05,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:41:05,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:05,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:41:05,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:41:05,029 INFO L87 Difference]: Start difference. First operand 704 states and 935 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 18:41:08,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:09,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:09,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:09,815 INFO L93 Difference]: Finished difference Result 704 states and 935 transitions. [2021-11-25 18:41:09,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:41:09,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2021-11-25 18:41:09,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:09,822 INFO L225 Difference]: With dead ends: 704 [2021-11-25 18:41:09,822 INFO L226 Difference]: Without dead ends: 702 [2021-11-25 18:41:09,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:09,824 INFO L933 BasicCegarLoop]: 805 mSDtfsCounter, 898 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:09,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [900 Valid, 1610 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-11-25 18:41:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-11-25 18:41:09,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 702. [2021-11-25 18:41:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 401 states have (on average 1.2394014962593516) internal successors, (497), 431 states have internal predecessors, (497), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-25 18:41:09,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 933 transitions. [2021-11-25 18:41:09,903 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 933 transitions. Word has length 118 [2021-11-25 18:41:09,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:09,903 INFO L470 AbstractCegarLoop]: Abstraction has 702 states and 933 transitions. [2021-11-25 18:41:09,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 18:41:09,904 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 933 transitions. [2021-11-25 18:41:09,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-25 18:41:09,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:09,907 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 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] [2021-11-25 18:41:09,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 18:41:09,907 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:09,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:09,908 INFO L85 PathProgramCache]: Analyzing trace with hash -907111333, now seen corresponding path program 1 times [2021-11-25 18:41:09,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:09,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373386616] [2021-11-25 18:41:09,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:09,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-25 18:41:10,102 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:10,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373386616] [2021-11-25 18:41:10,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373386616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:10,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:41:10,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:41:10,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319686912] [2021-11-25 18:41:10,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:10,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:41:10,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:10,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:41:10,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:10,105 INFO L87 Difference]: Start difference. First operand 702 states and 933 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:41:16,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:16,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:16,452 INFO L93 Difference]: Finished difference Result 1320 states and 1756 transitions. [2021-11-25 18:41:16,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:41:16,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 142 [2021-11-25 18:41:16,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:16,461 INFO L225 Difference]: With dead ends: 1320 [2021-11-25 18:41:16,464 INFO L226 Difference]: Without dead ends: 839 [2021-11-25 18:41:16,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:16,468 INFO L933 BasicCegarLoop]: 892 mSDtfsCounter, 96 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:16,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 3502 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-11-25 18:41:16,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2021-11-25 18:41:16,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 706. [2021-11-25 18:41:16,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 404 states have (on average 1.2376237623762376) internal successors, (500), 434 states have internal predecessors, (500), 219 states have call successors, (219), 67 states have call predecessors, (219), 67 states have return successors, (221), 215 states have call predecessors, (221), 217 states have call successors, (221) [2021-11-25 18:41:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 940 transitions. [2021-11-25 18:41:16,581 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 940 transitions. Word has length 142 [2021-11-25 18:41:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:16,581 INFO L470 AbstractCegarLoop]: Abstraction has 706 states and 940 transitions. [2021-11-25 18:41:16,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:41:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 940 transitions. [2021-11-25 18:41:16,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-25 18:41:16,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:16,585 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:41:16,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 18:41:16,586 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:16,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash -229922128, now seen corresponding path program 1 times [2021-11-25 18:41:16,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:16,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435968031] [2021-11-25 18:41:16,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:16,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:16,773 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:41:16,773 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:16,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435968031] [2021-11-25 18:41:16,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435968031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:16,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:41:16,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:41:16,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167188805] [2021-11-25 18:41:16,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:16,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:41:16,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:16,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:41:16,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:41:16,778 INFO L87 Difference]: Start difference. First operand 706 states and 940 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:41:21,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:21,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:21,476 INFO L93 Difference]: Finished difference Result 706 states and 940 transitions. [2021-11-25 18:41:21,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:41:21,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2021-11-25 18:41:21,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:21,484 INFO L225 Difference]: With dead ends: 706 [2021-11-25 18:41:21,484 INFO L226 Difference]: Without dead ends: 704 [2021-11-25 18:41:21,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:21,486 INFO L933 BasicCegarLoop]: 803 mSDtfsCounter, 895 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:21,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 1606 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-25 18:41:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-11-25 18:41:21,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2021-11-25 18:41:21,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 403 states have (on average 1.2357320099255582) internal successors, (498), 432 states have internal predecessors, (498), 219 states have call successors, (219), 67 states have call predecessors, (219), 67 states have return successors, (221), 215 states have call predecessors, (221), 217 states have call successors, (221) [2021-11-25 18:41:21,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 938 transitions. [2021-11-25 18:41:21,575 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 938 transitions. Word has length 123 [2021-11-25 18:41:21,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:21,576 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 938 transitions. [2021-11-25 18:41:21,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:41:21,577 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 938 transitions. [2021-11-25 18:41:21,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-25 18:41:21,580 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:21,580 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:41:21,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 18:41:21,580 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:21,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:21,581 INFO L85 PathProgramCache]: Analyzing trace with hash 363139191, now seen corresponding path program 1 times [2021-11-25 18:41:21,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:21,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383169992] [2021-11-25 18:41:21,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:21,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:21,717 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:41:21,717 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:21,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383169992] [2021-11-25 18:41:21,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383169992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:21,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:41:21,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:41:21,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135768042] [2021-11-25 18:41:21,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:21,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:41:21,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:21,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:41:21,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:41:21,737 INFO L87 Difference]: Start difference. First operand 704 states and 938 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 18:41:26,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:27,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:27,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:27,892 INFO L93 Difference]: Finished difference Result 704 states and 938 transitions. [2021-11-25 18:41:27,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:41:27,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2021-11-25 18:41:27,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:27,900 INFO L225 Difference]: With dead ends: 704 [2021-11-25 18:41:27,900 INFO L226 Difference]: Without dead ends: 702 [2021-11-25 18:41:27,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:27,902 INFO L933 BasicCegarLoop]: 801 mSDtfsCounter, 892 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:27,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [894 Valid, 1602 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2021-11-25 18:41:27,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-11-25 18:41:27,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 702. [2021-11-25 18:41:27,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 402 states have (on average 1.2338308457711442) internal successors, (496), 430 states have internal predecessors, (496), 219 states have call successors, (219), 67 states have call predecessors, (219), 67 states have return successors, (221), 215 states have call predecessors, (221), 217 states have call successors, (221) [2021-11-25 18:41:27,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 936 transitions. [2021-11-25 18:41:27,996 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 936 transitions. Word has length 128 [2021-11-25 18:41:27,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:27,997 INFO L470 AbstractCegarLoop]: Abstraction has 702 states and 936 transitions. [2021-11-25 18:41:27,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 18:41:27,998 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 936 transitions. [2021-11-25 18:41:28,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-25 18:41:28,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:28,001 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 18:41:28,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 18:41:28,002 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:28,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:28,003 INFO L85 PathProgramCache]: Analyzing trace with hash -5363930, now seen corresponding path program 1 times [2021-11-25 18:41:28,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:28,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371283994] [2021-11-25 18:41:28,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:28,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-25 18:41:28,249 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:28,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371283994] [2021-11-25 18:41:28,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371283994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:28,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:41:28,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:41:28,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156374173] [2021-11-25 18:41:28,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:28,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:41:28,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:28,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:41:28,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:41:28,253 INFO L87 Difference]: Start difference. First operand 702 states and 936 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 18:41:30,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:30,557 INFO L93 Difference]: Finished difference Result 1271 states and 1671 transitions. [2021-11-25 18:41:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:41:30,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 158 [2021-11-25 18:41:30,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:30,564 INFO L225 Difference]: With dead ends: 1271 [2021-11-25 18:41:30,564 INFO L226 Difference]: Without dead ends: 698 [2021-11-25 18:41:30,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:41:30,568 INFO L933 BasicCegarLoop]: 797 mSDtfsCounter, 908 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:30,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 797 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-25 18:41:30,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2021-11-25 18:41:30,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 698. [2021-11-25 18:41:30,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 399 states have (on average 1.2305764411027569) internal successors, (491), 426 states have internal predecessors, (491), 219 states have call successors, (219), 67 states have call predecessors, (219), 67 states have return successors, (221), 215 states have call predecessors, (221), 217 states have call successors, (221) [2021-11-25 18:41:30,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 931 transitions. [2021-11-25 18:41:30,660 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 931 transitions. Word has length 158 [2021-11-25 18:41:30,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:30,661 INFO L470 AbstractCegarLoop]: Abstraction has 698 states and 931 transitions. [2021-11-25 18:41:30,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 18:41:30,661 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 931 transitions. [2021-11-25 18:41:30,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-25 18:41:30,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:30,665 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:41:30,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 18:41:30,665 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:30,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:30,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1105520271, now seen corresponding path program 1 times [2021-11-25 18:41:30,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:30,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848346901] [2021-11-25 18:41:30,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:30,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-25 18:41:30,861 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:30,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848346901] [2021-11-25 18:41:30,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848346901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:30,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:41:30,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:41:30,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909015274] [2021-11-25 18:41:30,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:30,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:41:30,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:30,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:41:30,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:30,865 INFO L87 Difference]: Start difference. First operand 698 states and 931 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 18:41:37,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:38,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:38,539 INFO L93 Difference]: Finished difference Result 743 states and 972 transitions. [2021-11-25 18:41:38,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:41:38,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 155 [2021-11-25 18:41:38,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:38,547 INFO L225 Difference]: With dead ends: 743 [2021-11-25 18:41:38,547 INFO L226 Difference]: Without dead ends: 741 [2021-11-25 18:41:38,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:41:38,549 INFO L933 BasicCegarLoop]: 800 mSDtfsCounter, 770 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:38,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 2522 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-11-25 18:41:38,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2021-11-25 18:41:38,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 737. [2021-11-25 18:41:38,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 421 states have (on average 1.2209026128266034) internal successors, (514), 447 states have internal predecessors, (514), 226 states have call successors, (226), 78 states have call predecessors, (226), 78 states have return successors, (228), 222 states have call predecessors, (228), 224 states have call successors, (228) [2021-11-25 18:41:38,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 968 transitions. [2021-11-25 18:41:38,681 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 968 transitions. Word has length 155 [2021-11-25 18:41:38,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:38,682 INFO L470 AbstractCegarLoop]: Abstraction has 737 states and 968 transitions. [2021-11-25 18:41:38,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 18:41:38,682 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 968 transitions. [2021-11-25 18:41:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-25 18:41:38,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:38,685 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:41:38,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 18:41:38,686 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:38,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1449495814, now seen corresponding path program 1 times [2021-11-25 18:41:38,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:38,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244027509] [2021-11-25 18:41:38,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:38,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:41:38,830 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:38,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244027509] [2021-11-25 18:41:38,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244027509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:38,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:41:38,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:41:38,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865427553] [2021-11-25 18:41:38,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:38,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:41:38,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:38,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:41:38,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:41:38,833 INFO L87 Difference]: Start difference. First operand 737 states and 968 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 18:41:43,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:43,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:43,569 INFO L93 Difference]: Finished difference Result 1351 states and 1748 transitions. [2021-11-25 18:41:43,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:41:43,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2021-11-25 18:41:43,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:43,583 INFO L225 Difference]: With dead ends: 1351 [2021-11-25 18:41:43,583 INFO L226 Difference]: Without dead ends: 1349 [2021-11-25 18:41:43,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:43,585 INFO L933 BasicCegarLoop]: 958 mSDtfsCounter, 870 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:43,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 2557 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-11-25 18:41:43,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2021-11-25 18:41:43,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1311. [2021-11-25 18:41:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 758 states have (on average 1.2216358839050132) internal successors, (926), 797 states have internal predecessors, (926), 393 states have call successors, (393), 147 states have call predecessors, (393), 148 states have return successors, (396), 385 states have call predecessors, (396), 391 states have call successors, (396) [2021-11-25 18:41:43,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1715 transitions. [2021-11-25 18:41:43,789 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1715 transitions. Word has length 133 [2021-11-25 18:41:43,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:43,790 INFO L470 AbstractCegarLoop]: Abstraction has 1311 states and 1715 transitions. [2021-11-25 18:41:43,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 18:41:43,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1715 transitions. [2021-11-25 18:41:43,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-25 18:41:43,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:43,794 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 18:41:43,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 18:41:43,794 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:43,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:43,795 INFO L85 PathProgramCache]: Analyzing trace with hash -764332020, now seen corresponding path program 1 times [2021-11-25 18:41:43,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:43,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580915539] [2021-11-25 18:41:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:43,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:43,966 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-11-25 18:41:43,967 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:43,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580915539] [2021-11-25 18:41:43,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580915539] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:41:43,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009387244] [2021-11-25 18:41:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:43,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:41:43,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:41:43,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:41:43,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:41:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:44,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1978 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 18:41:44,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:41:45,216 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-25 18:41:45,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:41:45,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009387244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:45,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:41:45,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-25 18:41:45,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90355621] [2021-11-25 18:41:45,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:45,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:41:45,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:45,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:41:45,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:41:45,218 INFO L87 Difference]: Start difference. First operand 1311 states and 1715 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 18:41:47,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:47,323 INFO L93 Difference]: Finished difference Result 2497 states and 3230 transitions. [2021-11-25 18:41:47,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:41:47,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 163 [2021-11-25 18:41:47,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:47,335 INFO L225 Difference]: With dead ends: 2497 [2021-11-25 18:41:47,335 INFO L226 Difference]: Without dead ends: 1327 [2021-11-25 18:41:47,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:41:47,403 INFO L933 BasicCegarLoop]: 802 mSDtfsCounter, 830 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:47,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [830 Valid, 852 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-25 18:41:47,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2021-11-25 18:41:47,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1325. [2021-11-25 18:41:47,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 763 states have (on average 1.2149410222804717) internal successors, (927), 802 states have internal predecessors, (927), 397 states have call successors, (397), 153 states have call predecessors, (397), 154 states have return successors, (400), 388 states have call predecessors, (400), 395 states have call successors, (400) [2021-11-25 18:41:47,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1724 transitions. [2021-11-25 18:41:47,564 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1724 transitions. Word has length 163 [2021-11-25 18:41:47,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:47,565 INFO L470 AbstractCegarLoop]: Abstraction has 1325 states and 1724 transitions. [2021-11-25 18:41:47,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 18:41:47,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1724 transitions. [2021-11-25 18:41:47,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-25 18:41:47,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:47,569 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:41:47,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 18:41:47,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:41:47,787 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:47,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:47,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1799718587, now seen corresponding path program 1 times [2021-11-25 18:41:47,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:47,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415922239] [2021-11-25 18:41:47,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:47,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:47,927 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:41:47,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:47,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415922239] [2021-11-25 18:41:47,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415922239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:47,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:41:47,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:41:47,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222001216] [2021-11-25 18:41:47,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:47,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:41:47,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:47,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:41:47,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:41:47,931 INFO L87 Difference]: Start difference. First operand 1325 states and 1724 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 18:41:52,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:52,752 INFO L93 Difference]: Finished difference Result 1940 states and 2516 transitions. [2021-11-25 18:41:52,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:41:52,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2021-11-25 18:41:52,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:52,766 INFO L225 Difference]: With dead ends: 1940 [2021-11-25 18:41:52,766 INFO L226 Difference]: Without dead ends: 1938 [2021-11-25 18:41:52,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:52,767 INFO L933 BasicCegarLoop]: 991 mSDtfsCounter, 810 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:52,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [812 Valid, 2676 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-25 18:41:52,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1938 states. [2021-11-25 18:41:53,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1938 to 1907. [2021-11-25 18:41:53,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1102 states have (on average 1.2141560798548094) internal successors, (1338), 1154 states have internal predecessors, (1338), 568 states have call successors, (568), 225 states have call predecessors, (568), 226 states have return successors, (583), 554 states have call predecessors, (583), 566 states have call successors, (583) [2021-11-25 18:41:53,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 2489 transitions. [2021-11-25 18:41:53,014 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 2489 transitions. Word has length 138 [2021-11-25 18:41:53,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:53,014 INFO L470 AbstractCegarLoop]: Abstraction has 1907 states and 2489 transitions. [2021-11-25 18:41:53,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 18:41:53,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 2489 transitions. [2021-11-25 18:41:53,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-25 18:41:53,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:53,019 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:41:53,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-25 18:41:53,019 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:53,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:53,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1086910368, now seen corresponding path program 1 times [2021-11-25 18:41:53,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:53,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993185137] [2021-11-25 18:41:53,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:53,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:53,156 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:41:53,156 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:53,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993185137] [2021-11-25 18:41:53,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993185137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:53,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:41:53,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:41:53,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812906408] [2021-11-25 18:41:53,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:53,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:41:53,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:53,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:41:53,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:41:53,160 INFO L87 Difference]: Start difference. First operand 1907 states and 2489 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 18:41:57,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:58,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:41:59,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:41:59,044 INFO L93 Difference]: Finished difference Result 1907 states and 2489 transitions. [2021-11-25 18:41:59,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:41:59,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2021-11-25 18:41:59,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:41:59,061 INFO L225 Difference]: With dead ends: 1907 [2021-11-25 18:41:59,061 INFO L226 Difference]: Without dead ends: 1905 [2021-11-25 18:41:59,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:59,063 INFO L933 BasicCegarLoop]: 787 mSDtfsCounter, 875 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:41:59,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 1574 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-25 18:41:59,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2021-11-25 18:41:59,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1905. [2021-11-25 18:41:59,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1101 states have (on average 1.2134423251589463) internal successors, (1336), 1152 states have internal predecessors, (1336), 568 states have call successors, (568), 225 states have call predecessors, (568), 226 states have return successors, (583), 554 states have call predecessors, (583), 566 states have call successors, (583) [2021-11-25 18:41:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2487 transitions. [2021-11-25 18:41:59,334 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2487 transitions. Word has length 143 [2021-11-25 18:41:59,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:41:59,335 INFO L470 AbstractCegarLoop]: Abstraction has 1905 states and 2487 transitions. [2021-11-25 18:41:59,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 18:41:59,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2487 transitions. [2021-11-25 18:41:59,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-25 18:41:59,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:41:59,339 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:41:59,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-25 18:41:59,340 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:41:59,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:41:59,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1992031060, now seen corresponding path program 1 times [2021-11-25 18:41:59,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:41:59,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607049088] [2021-11-25 18:41:59,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:41:59,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:41:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:41:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-25 18:41:59,659 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:41:59,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607049088] [2021-11-25 18:41:59,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607049088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:41:59,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:41:59,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:41:59,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000267208] [2021-11-25 18:41:59,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:41:59,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:41:59,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:41:59,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:41:59,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:41:59,662 INFO L87 Difference]: Start difference. First operand 1905 states and 2487 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-11-25 18:42:04,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:06,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:08,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:42:08,014 INFO L93 Difference]: Finished difference Result 1909 states and 2489 transitions. [2021-11-25 18:42:08,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:42:08,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 165 [2021-11-25 18:42:08,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:42:08,030 INFO L225 Difference]: With dead ends: 1909 [2021-11-25 18:42:08,030 INFO L226 Difference]: Without dead ends: 1907 [2021-11-25 18:42:08,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:42:08,032 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 146 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 3145 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:42:08,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 3145 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-11-25 18:42:08,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2021-11-25 18:42:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1903. [2021-11-25 18:42:08,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1100 states have (on average 1.210909090909091) internal successors, (1332), 1150 states have internal predecessors, (1332), 568 states have call successors, (568), 225 states have call predecessors, (568), 226 states have return successors, (583), 554 states have call predecessors, (583), 566 states have call successors, (583) [2021-11-25 18:42:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2483 transitions. [2021-11-25 18:42:08,273 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2483 transitions. Word has length 165 [2021-11-25 18:42:08,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:42:08,274 INFO L470 AbstractCegarLoop]: Abstraction has 1903 states and 2483 transitions. [2021-11-25 18:42:08,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-11-25 18:42:08,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2483 transitions. [2021-11-25 18:42:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-25 18:42:08,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:42:08,278 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:42:08,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-25 18:42:08,279 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:42:08,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:42:08,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1861813995, now seen corresponding path program 1 times [2021-11-25 18:42:08,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:42:08,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431068543] [2021-11-25 18:42:08,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:42:08,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:42:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:42:08,406 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:42:08,407 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:42:08,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431068543] [2021-11-25 18:42:08,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431068543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:42:08,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:42:08,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:42:08,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913602048] [2021-11-25 18:42:08,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:42:08,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:42:08,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:42:08,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:42:08,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:42:08,409 INFO L87 Difference]: Start difference. First operand 1903 states and 2483 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-25 18:42:13,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:15,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:16,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:42:16,407 INFO L93 Difference]: Finished difference Result 3083 states and 4028 transitions. [2021-11-25 18:42:16,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:42:16,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2021-11-25 18:42:16,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:42:16,433 INFO L225 Difference]: With dead ends: 3083 [2021-11-25 18:42:16,434 INFO L226 Difference]: Without dead ends: 2953 [2021-11-25 18:42:16,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:42:16,440 INFO L933 BasicCegarLoop]: 964 mSDtfsCounter, 774 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:42:16,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [774 Valid, 2641 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2021-11-25 18:42:16,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2021-11-25 18:42:16,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2935. [2021-11-25 18:42:16,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2935 states, 1710 states have (on average 1.2157894736842105) internal successors, (2079), 1782 states have internal predecessors, (2079), 866 states have call successors, (866), 348 states have call predecessors, (866), 350 states have return successors, (914), 847 states have call predecessors, (914), 862 states have call successors, (914) [2021-11-25 18:42:16,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 3859 transitions. [2021-11-25 18:42:16,834 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 3859 transitions. Word has length 148 [2021-11-25 18:42:16,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:42:16,835 INFO L470 AbstractCegarLoop]: Abstraction has 2935 states and 3859 transitions. [2021-11-25 18:42:16,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-25 18:42:16,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 3859 transitions. [2021-11-25 18:42:16,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-25 18:42:16,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:42:16,838 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 18:42:16,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-25 18:42:16,839 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:42:16,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:42:16,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1022316190, now seen corresponding path program 1 times [2021-11-25 18:42:16,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:42:16,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900111642] [2021-11-25 18:42:16,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:42:16,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:42:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:42:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-11-25 18:42:17,017 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:42:17,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900111642] [2021-11-25 18:42:17,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900111642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:42:17,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:42:17,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:42:17,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714198540] [2021-11-25 18:42:17,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:42:17,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:42:17,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:42:17,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:42:17,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:42:17,020 INFO L87 Difference]: Start difference. First operand 2935 states and 3859 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 18:42:21,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:22,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:22,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:42:22,718 INFO L93 Difference]: Finished difference Result 6232 states and 8541 transitions. [2021-11-25 18:42:22,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:42:22,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 178 [2021-11-25 18:42:22,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:42:22,744 INFO L225 Difference]: With dead ends: 6232 [2021-11-25 18:42:22,744 INFO L226 Difference]: Without dead ends: 4027 [2021-11-25 18:42:22,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:42:22,755 INFO L933 BasicCegarLoop]: 1123 mSDtfsCounter, 158 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:42:22,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 2012 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-25 18:42:22,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4027 states. [2021-11-25 18:42:23,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4027 to 2936. [2021-11-25 18:42:23,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 1711 states have (on average 1.2156633547632962) internal successors, (2080), 1783 states have internal predecessors, (2080), 866 states have call successors, (866), 348 states have call predecessors, (866), 350 states have return successors, (914), 847 states have call predecessors, (914), 862 states have call successors, (914) [2021-11-25 18:42:23,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 3860 transitions. [2021-11-25 18:42:23,245 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 3860 transitions. Word has length 178 [2021-11-25 18:42:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:42:23,246 INFO L470 AbstractCegarLoop]: Abstraction has 2936 states and 3860 transitions. [2021-11-25 18:42:23,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 18:42:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 3860 transitions. [2021-11-25 18:42:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-25 18:42:23,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:42:23,249 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 18:42:23,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-25 18:42:23,250 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:42:23,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:42:23,251 INFO L85 PathProgramCache]: Analyzing trace with hash 295557004, now seen corresponding path program 1 times [2021-11-25 18:42:23,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:42:23,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015396510] [2021-11-25 18:42:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:42:23,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:42:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:42:23,615 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-11-25 18:42:23,615 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:42:23,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015396510] [2021-11-25 18:42:23,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015396510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:42:23,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:42:23,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 18:42:23,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118983469] [2021-11-25 18:42:23,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:42:23,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 18:42:23,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:42:23,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 18:42:23,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:42:23,618 INFO L87 Difference]: Start difference. First operand 2936 states and 3860 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 18:42:24,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:31,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:33,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:35,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:37,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:38,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:42:38,599 INFO L93 Difference]: Finished difference Result 6595 states and 8935 transitions. [2021-11-25 18:42:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:42:38,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 182 [2021-11-25 18:42:38,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:42:38,617 INFO L225 Difference]: With dead ends: 6595 [2021-11-25 18:42:38,617 INFO L226 Difference]: Without dead ends: 3735 [2021-11-25 18:42:38,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:42:38,629 INFO L933 BasicCegarLoop]: 1095 mSDtfsCounter, 320 mSDsluCounter, 5754 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 6143 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:42:38,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 6143 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2021-11-25 18:42:38,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2021-11-25 18:42:39,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 2942. [2021-11-25 18:42:39,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 1715 states have (on average 1.2151603498542274) internal successors, (2084), 1787 states have internal predecessors, (2084), 867 states have call successors, (867), 348 states have call predecessors, (867), 351 states have return successors, (916), 849 states have call predecessors, (916), 863 states have call successors, (916) [2021-11-25 18:42:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 3867 transitions. [2021-11-25 18:42:39,084 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 3867 transitions. Word has length 182 [2021-11-25 18:42:39,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:42:39,085 INFO L470 AbstractCegarLoop]: Abstraction has 2942 states and 3867 transitions. [2021-11-25 18:42:39,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 18:42:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 3867 transitions. [2021-11-25 18:42:39,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-25 18:42:39,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:42:39,089 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 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] [2021-11-25 18:42:39,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-25 18:42:39,089 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:42:39,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:42:39,090 INFO L85 PathProgramCache]: Analyzing trace with hash 351811287, now seen corresponding path program 1 times [2021-11-25 18:42:39,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:42:39,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653195439] [2021-11-25 18:42:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:42:39,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:42:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:42:39,511 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-25 18:42:39,512 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:42:39,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653195439] [2021-11-25 18:42:39,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653195439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:42:39,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:42:39,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-25 18:42:39,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704229309] [2021-11-25 18:42:39,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:42:39,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 18:42:39,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:42:39,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 18:42:39,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:42:39,515 INFO L87 Difference]: Start difference. First operand 2942 states and 3867 transitions. Second operand has 10 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-25 18:42:50,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:51,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:53,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:55,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:57,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:42:58,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:42:58,362 INFO L93 Difference]: Finished difference Result 5815 states and 7700 transitions. [2021-11-25 18:42:58,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 18:42:58,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 173 [2021-11-25 18:42:58,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:42:58,381 INFO L225 Difference]: With dead ends: 5815 [2021-11-25 18:42:58,381 INFO L226 Difference]: Without dead ends: 3445 [2021-11-25 18:42:58,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-11-25 18:42:58,390 INFO L933 BasicCegarLoop]: 870 mSDtfsCounter, 63 mSDsluCounter, 7767 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 102 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:42:58,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 7617 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1500 Invalid, 1 Unknown, 0 Unchecked, 18.2s Time] [2021-11-25 18:42:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2021-11-25 18:42:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 2972. [2021-11-25 18:42:58,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 1735 states have (on average 1.2126801152737752) internal successors, (2104), 1807 states have internal predecessors, (2104), 877 states have call successors, (877), 348 states have call predecessors, (877), 351 states have return successors, (926), 859 states have call predecessors, (926), 873 states have call successors, (926) [2021-11-25 18:42:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 3907 transitions. [2021-11-25 18:42:58,954 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 3907 transitions. Word has length 173 [2021-11-25 18:42:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:42:58,955 INFO L470 AbstractCegarLoop]: Abstraction has 2972 states and 3907 transitions. [2021-11-25 18:42:58,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.857142857142858) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-25 18:42:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 3907 transitions. [2021-11-25 18:42:58,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-25 18:42:58,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:42:58,959 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1] [2021-11-25 18:42:58,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-25 18:42:58,959 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 18:42:58,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:42:58,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1568192341, now seen corresponding path program 1 times [2021-11-25 18:42:58,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:42:58,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850092324] [2021-11-25 18:42:58,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:42:58,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:42:59,064 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:42:59,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935148933] [2021-11-25 18:42:59,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:42:59,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:42:59,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:42:59,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:42:59,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16662509-6271-4ccf-b29b-fe6db22445c0/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:43:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:43:01,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-25 18:43:01,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:43:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-11-25 18:43:02,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:43:03,288 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 4 proven. 42 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2021-11-25 18:43:03,288 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:43:03,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850092324] [2021-11-25 18:43:03,288 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:43:03,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935148933] [2021-11-25 18:43:03,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935148933] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:43:03,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [989831940] [2021-11-25 18:43:03,319 INFO L159 IcfgInterpreter]: Started Sifa with 115 locations of interest [2021-11-25 18:43:03,319 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:43:03,326 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:43:03,332 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:43:03,333 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:43:04,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:05,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,153 INFO L244 Elim1Store]: Index analysis took 127 ms [2021-11-25 18:43:05,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2021-11-25 18:43:05,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2021-11-25 18:43:05,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:05,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2021-11-25 18:43:05,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:05,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:05,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:06,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:06,427 INFO L244 Elim1Store]: Index analysis took 128 ms [2021-11-25 18:43:06,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 78 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 107 [2021-11-25 18:43:06,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:06,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:06,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:06,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:06,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:06,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:06,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:07,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:07,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 18:43:07,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:43:07,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 484 treesize of output 425 [2021-11-25 18:47:09,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:47:09,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 18:48:19,123 INFO L388 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 15 treesize of output 1 [2021-11-25 18:48:19,303 INFO L388 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 11 treesize of output 7 [2021-11-25 18:48:19,353 INFO L388 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 11 treesize of output 7 [2021-11-25 18:48:22,528 INFO L388 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 15 treesize of output 1 [2021-11-25 18:48:22,578 INFO L388 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 11 treesize of output 7 [2021-11-25 18:48:22,630 INFO L388 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 11 treesize of output 7 [2021-11-25 18:48:25,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:48:25,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:48:25,895 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:48:25,910 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:48:27,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:48:27,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:48:28,057 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:48:28,061 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:48:29,376 INFO L388 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 19 treesize of output 1 [2021-11-25 18:48:29,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:29,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 791 treesize of output 786 [2021-11-25 18:48:29,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:29,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 789 treesize of output 784 [2021-11-25 18:48:32,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:48:32,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:48:32,662 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:48:32,685 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:48:35,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:48:35,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:48:35,684 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:48:35,700 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:48:50,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,588 INFO L354 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2021-11-25 18:48:50,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 985 treesize of output 991 [2021-11-25 18:48:50,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:50,887 INFO L354 Elim1Store]: treesize reduction 171, result has 8.6 percent of original size [2021-11-25 18:48:50,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 789 treesize of output 787 [2021-11-25 18:49:03,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:03,606 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:04,307 INFO L354 Elim1Store]: treesize reduction 56, result has 44.6 percent of original size [2021-11-25 18:49:04,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1101 treesize of output 1107 [2021-11-25 18:49:04,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:04,483 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:05,206 INFO L354 Elim1Store]: treesize reduction 56, result has 44.6 percent of original size [2021-11-25 18:49:05,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1081 treesize of output 1087 [2021-11-25 18:49:05,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:05,941 INFO L354 Elim1Store]: treesize reduction 197, result has 18.9 percent of original size [2021-11-25 18:49:05,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 16 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 1108 treesize of output 1156 [2021-11-25 18:49:06,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:06,350 INFO L354 Elim1Store]: treesize reduction 193, result has 19.2 percent of original size [2021-11-25 18:49:06,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 16 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 1104 treesize of output 1152 [2021-11-25 18:49:08,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:08,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:08,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:08,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:08,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:08,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:08,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:08,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:08,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:08,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:08,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-11-25 18:49:40,465 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:40,493 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:41,131 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:41,155 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:41,622 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:41,647 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:42,401 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:42,418 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:43,212 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:43,228 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:44,039 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:44,056 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 18:49:44,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 18:49:44,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 18:49:44,908 INFO L388 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 7 treesize of output 6 [2021-11-25 18:49:54,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:54,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:54,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:54,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:54,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:54,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:54,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:54,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2021-11-25 18:49:54,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:54,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 653 treesize of output 641 [2021-11-25 18:49:54,338 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:54,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2021-11-25 18:49:56,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:56,084 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:56,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:56,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:56,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:56,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:56,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:56,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:56,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36