./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI --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 e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:06:04,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:06:04,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:06:04,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:06:04,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:06:04,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:06:04,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:06:04,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:06:04,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:06:04,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:06:04,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:06:04,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:06:04,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:06:04,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:06:04,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:06:04,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:06:04,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:06:04,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:06:04,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:06:04,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:06:04,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:06:04,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:06:04,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:06:04,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:06:04,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:06:04,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:06:04,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:06:04,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:06:04,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:06:04,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:06:04,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:06:04,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:06:04,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:06:04,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:06:04,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:06:04,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:06:04,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:06:04,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:06:04,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:06:04,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:06:04,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:06:04,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:06:04,697 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:06:04,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:06:04,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:06:04,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:06:04,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:06:04,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:06:04,699 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:06:04,700 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:06:04,700 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:06:04,700 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:06:04,701 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:06:04,701 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:06:04,702 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:06:04,702 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:06:04,702 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:06:04,702 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:06:04,703 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:06:04,703 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:06:04,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:06:04,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:06:04,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:06:04,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:06:04,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:06:04,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:06:04,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:06:04,705 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:06:04,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:06:04,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:06:04,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:06:04,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:06:04,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:06:04,707 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:06:04,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:06:04,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:06:04,707 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:06:04,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:06:04,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:06:04,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:06:04,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2022-11-03 04:06:05,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:06:05,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:06:05,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:06:05,036 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:06:05,037 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:06:05,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-03 04:06:05,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/data/c527bc481/9882cbf3d50f4bf4906153997ae28618/FLAG73e776311 [2022-11-03 04:06:05,947 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:06:05,947 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-03 04:06:05,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/data/c527bc481/9882cbf3d50f4bf4906153997ae28618/FLAG73e776311 [2022-11-03 04:06:06,498 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/data/c527bc481/9882cbf3d50f4bf4906153997ae28618 [2022-11-03 04:06:06,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:06:06,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:06:06,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:06:06,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:06:06,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:06:06,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:06" (1/1) ... [2022-11-03 04:06:06,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ea616d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:06, skipping insertion in model container [2022-11-03 04:06:06,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:06" (1/1) ... [2022-11-03 04:06:06,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:06:06,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:06:07,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-11-03 04:06:08,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:06:08,203 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:06:08,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-11-03 04:06:08,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:06:08,501 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:06:08,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08 WrapperNode [2022-11-03 04:06:08,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:06:08,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:06:08,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:06:08,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:06:08,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:08,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:08,779 INFO L138 Inliner]: procedures = 203, calls = 1279, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 3493 [2022-11-03 04:06:08,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:06:08,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:06:08,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:06:08,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:06:08,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:08,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:08,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:08,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:08,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:08,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:09,013 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:09,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:09,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:06:09,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:06:09,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:06:09,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:06:09,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (1/1) ... [2022-11-03 04:06:09,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:06:09,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:06:09,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:06:09,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:06:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-11-03 04:06:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-11-03 04:06:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-03 04:06:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-03 04:06:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 04:06:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 04:06:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 04:06:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 04:06:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-11-03 04:06:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-11-03 04:06:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-11-03 04:06:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-11-03 04:06:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-11-03 04:06:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-11-03 04:06:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 04:06:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 04:06:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 04:06:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 04:06:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-11-03 04:06:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-11-03 04:06:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-11-03 04:06:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-11-03 04:06:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 04:06:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 04:06:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-11-03 04:06:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-11-03 04:06:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 04:06:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 04:06:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 04:06:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 04:06:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-11-03 04:06:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-11-03 04:06:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:06:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:06:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 04:06:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 04:06:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-03 04:06:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-03 04:06:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-11-03 04:06:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-11-03 04:06:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:06:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 04:06:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 04:06:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:06:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-11-03 04:06:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-11-03 04:06:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-11-03 04:06:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-11-03 04:06:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 04:06:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 04:06:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 04:06:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 04:06:09,152 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-03 04:06:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-03 04:06:09,152 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 04:06:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 04:06:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:06:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:06:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-11-03 04:06:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-11-03 04:06:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 04:06:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 04:06:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 04:06:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 04:06:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-03 04:06:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-03 04:06:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 04:06:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 04:06:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 04:06:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 04:06:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-11-03 04:06:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-11-03 04:06:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 04:06:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 04:06:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 04:06:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 04:06:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 04:06:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 04:06:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 04:06:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 04:06:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 04:06:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 04:06:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 04:06:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 04:06:09,160 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 04:06:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 04:06:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:06:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-11-03 04:06:09,161 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-11-03 04:06:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 04:06:09,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 04:06:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-11-03 04:06:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-11-03 04:06:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-03 04:06:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-03 04:06:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:06:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-11-03 04:06:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-11-03 04:06:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-11-03 04:06:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-11-03 04:06:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-11-03 04:06:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-11-03 04:06:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 04:06:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 04:06:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-11-03 04:06:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-11-03 04:06:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:06:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-03 04:06:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-11-03 04:06:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-11-03 04:06:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-11-03 04:06:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-11-03 04:06:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-11-03 04:06:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 04:06:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 04:06:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:06:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:06:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 04:06:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-11-03 04:06:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-11-03 04:06:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-11-03 04:06:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-11-03 04:06:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-03 04:06:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-03 04:06:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 04:06:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 04:06:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 04:06:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 04:06:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-11-03 04:06:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-11-03 04:06:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-03 04:06:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-03 04:06:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 04:06:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 04:06:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-11-03 04:06:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-11-03 04:06:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-11-03 04:06:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-11-03 04:06:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 04:06:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 04:06:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-11-03 04:06:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-11-03 04:06:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 04:06:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 04:06:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-11-03 04:06:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-11-03 04:06:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:06:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 04:06:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 04:06:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:06:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:06:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 04:06:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 04:06:09,922 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:06:09,928 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:06:10,232 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 04:06:31,163 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:06:32,144 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:06:32,144 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 04:06:32,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:32 BoogieIcfgContainer [2022-11-03 04:06:32,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:06:32,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:06:32,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:06:32,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:06:32,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:06:06" (1/3) ... [2022-11-03 04:06:32,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600fc11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:06:32, skipping insertion in model container [2022-11-03 04:06:32,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:08" (2/3) ... [2022-11-03 04:06:32,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600fc11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:06:32, skipping insertion in model container [2022-11-03 04:06:32,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:32" (3/3) ... [2022-11-03 04:06:32,161 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-03 04:06:32,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:06:32,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:06:32,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:06:32,305 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@758b4b74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:06:32,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:06:32,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 992 states, 601 states have (on average 1.3810316139767056) internal successors, (830), 644 states have internal predecessors, (830), 323 states have call successors, (323), 67 states have call predecessors, (323), 66 states have return successors, (319), 316 states have call predecessors, (319), 319 states have call successors, (319) [2022-11-03 04:06:32,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-03 04:06:32,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:32,327 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:32,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:32,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:32,332 INFO L85 PathProgramCache]: Analyzing trace with hash -751680418, now seen corresponding path program 1 times [2022-11-03 04:06:32,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:32,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236339177] [2022-11-03 04:06:32,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:32,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:33,368 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:06:33,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:33,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236339177] [2022-11-03 04:06:33,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236339177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:33,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:33,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:33,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089446195] [2022-11-03 04:06:33,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:33,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:33,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:33,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:33,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:33,428 INFO L87 Difference]: Start difference. First operand has 992 states, 601 states have (on average 1.3810316139767056) internal successors, (830), 644 states have internal predecessors, (830), 323 states have call successors, (323), 67 states have call predecessors, (323), 66 states have return successors, (319), 316 states have call predecessors, (319), 319 states have call successors, (319) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 04:06:35,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:36,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:36,962 INFO L93 Difference]: Finished difference Result 2831 states and 4254 transitions. [2022-11-03 04:06:36,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:36,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2022-11-03 04:06:36,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:37,048 INFO L225 Difference]: With dead ends: 2831 [2022-11-03 04:06:37,063 INFO L226 Difference]: Without dead ends: 1839 [2022-11-03 04:06:37,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:37,084 INFO L413 NwaCegarLoop]: 1567 mSDtfsCounter, 1361 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:37,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 2774 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 302 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 04:06:37,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2022-11-03 04:06:37,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1833. [2022-11-03 04:06:37,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1115 states have (on average 1.366816143497758) internal successors, (1524), 1175 states have internal predecessors, (1524), 592 states have call successors, (592), 126 states have call predecessors, (592), 125 states have return successors, (579), 573 states have call predecessors, (579), 579 states have call successors, (579) [2022-11-03 04:06:37,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2695 transitions. [2022-11-03 04:06:37,292 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2695 transitions. Word has length 54 [2022-11-03 04:06:37,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:37,293 INFO L495 AbstractCegarLoop]: Abstraction has 1833 states and 2695 transitions. [2022-11-03 04:06:37,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 04:06:37,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2695 transitions. [2022-11-03 04:06:37,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-03 04:06:37,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:37,298 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:37,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:06:37,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:37,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:37,299 INFO L85 PathProgramCache]: Analyzing trace with hash 360593913, now seen corresponding path program 1 times [2022-11-03 04:06:37,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:37,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031140398] [2022-11-03 04:06:37,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:37,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:37,771 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:06:37,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:37,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031140398] [2022-11-03 04:06:37,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031140398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:37,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:37,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:37,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968012479] [2022-11-03 04:06:37,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:37,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:37,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:37,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:37,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:37,782 INFO L87 Difference]: Start difference. First operand 1833 states and 2695 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 04:06:39,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:41,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:41,283 INFO L93 Difference]: Finished difference Result 3621 states and 5331 transitions. [2022-11-03 04:06:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:41,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 54 [2022-11-03 04:06:41,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:41,310 INFO L225 Difference]: With dead ends: 3621 [2022-11-03 04:06:41,310 INFO L226 Difference]: Without dead ends: 3601 [2022-11-03 04:06:41,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:41,315 INFO L413 NwaCegarLoop]: 1550 mSDtfsCounter, 1373 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:41,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 2749 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 298 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 04:06:41,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2022-11-03 04:06:41,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3597. [2022-11-03 04:06:41,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3597 states, 2194 states have (on average 1.3646308113035552) internal successors, (2994), 2302 states have internal predecessors, (2994), 1158 states have call successors, (1158), 247 states have call predecessors, (1158), 244 states have return successors, (1146), 1131 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-03 04:06:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3597 states to 3597 states and 5298 transitions. [2022-11-03 04:06:41,514 INFO L78 Accepts]: Start accepts. Automaton has 3597 states and 5298 transitions. Word has length 54 [2022-11-03 04:06:41,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:41,515 INFO L495 AbstractCegarLoop]: Abstraction has 3597 states and 5298 transitions. [2022-11-03 04:06:41,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 04:06:41,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3597 states and 5298 transitions. [2022-11-03 04:06:41,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-03 04:06:41,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:41,518 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:41,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:06:41,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:41,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:41,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1707472535, now seen corresponding path program 1 times [2022-11-03 04:06:41,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:41,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375031041] [2022-11-03 04:06:41,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:41,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:41,844 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:06:41,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:41,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375031041] [2022-11-03 04:06:41,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375031041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:41,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:41,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:41,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353367778] [2022-11-03 04:06:41,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:41,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:41,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:41,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:41,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:41,847 INFO L87 Difference]: Start difference. First operand 3597 states and 5298 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 04:06:43,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:45,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:45,559 INFO L93 Difference]: Finished difference Result 10729 states and 15819 transitions. [2022-11-03 04:06:45,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:45,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 55 [2022-11-03 04:06:45,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:45,625 INFO L225 Difference]: With dead ends: 10729 [2022-11-03 04:06:45,625 INFO L226 Difference]: Without dead ends: 7145 [2022-11-03 04:06:45,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:45,649 INFO L413 NwaCegarLoop]: 1657 mSDtfsCounter, 1372 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:45,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 2865 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 314 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 04:06:45,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7145 states. [2022-11-03 04:06:46,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7145 to 7134. [2022-11-03 04:06:46,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7134 states, 4357 states have (on average 1.3651595134266696) internal successors, (5948), 4565 states have internal predecessors, (5948), 2294 states have call successors, (2294), 487 states have call predecessors, (2294), 482 states have return successors, (2276), 2249 states have call predecessors, (2276), 2276 states have call successors, (2276) [2022-11-03 04:06:46,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 10518 transitions. [2022-11-03 04:06:46,212 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 10518 transitions. Word has length 55 [2022-11-03 04:06:46,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:46,212 INFO L495 AbstractCegarLoop]: Abstraction has 7134 states and 10518 transitions. [2022-11-03 04:06:46,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 04:06:46,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 10518 transitions. [2022-11-03 04:06:46,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-03 04:06:46,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:46,221 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:46,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:06:46,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:46,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:46,222 INFO L85 PathProgramCache]: Analyzing trace with hash 826731283, now seen corresponding path program 1 times [2022-11-03 04:06:46,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:46,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908408666] [2022-11-03 04:06:46,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:46,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:06:46,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:46,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908408666] [2022-11-03 04:06:46,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908408666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:46,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:46,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:46,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059054183] [2022-11-03 04:06:46,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:46,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:46,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:46,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:46,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:46,668 INFO L87 Difference]: Start difference. First operand 7134 states and 10518 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 04:06:48,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:50,477 INFO L93 Difference]: Finished difference Result 21362 states and 31504 transitions. [2022-11-03 04:06:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2022-11-03 04:06:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:50,585 INFO L225 Difference]: With dead ends: 21362 [2022-11-03 04:06:50,585 INFO L226 Difference]: Without dead ends: 14238 [2022-11-03 04:06:50,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:50,624 INFO L413 NwaCegarLoop]: 1569 mSDtfsCounter, 1365 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:50,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 2796 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 296 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 04:06:50,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14238 states. [2022-11-03 04:06:51,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14238 to 14201. [2022-11-03 04:06:51,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14201 states, 8684 states have (on average 1.3654997696913864) internal successors, (11858), 9088 states have internal predecessors, (11858), 4558 states have call successors, (4558), 966 states have call predecessors, (4558), 958 states have return successors, (4538), 4482 states have call predecessors, (4538), 4538 states have call successors, (4538) [2022-11-03 04:06:51,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14201 states to 14201 states and 20954 transitions. [2022-11-03 04:06:51,432 INFO L78 Accepts]: Start accepts. Automaton has 14201 states and 20954 transitions. Word has length 68 [2022-11-03 04:06:51,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:51,432 INFO L495 AbstractCegarLoop]: Abstraction has 14201 states and 20954 transitions. [2022-11-03 04:06:51,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 04:06:51,434 INFO L276 IsEmpty]: Start isEmpty. Operand 14201 states and 20954 transitions. [2022-11-03 04:06:51,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-03 04:06:51,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:51,436 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:51,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:06:51,437 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:51,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:51,437 INFO L85 PathProgramCache]: Analyzing trace with hash -177357247, now seen corresponding path program 1 times [2022-11-03 04:06:51,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:51,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150367391] [2022-11-03 04:06:51,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:51,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:06:54,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:54,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150367391] [2022-11-03 04:06:54,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150367391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:54,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:54,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 04:06:54,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904224363] [2022-11-03 04:06:54,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:54,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 04:06:54,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:54,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 04:06:54,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:06:54,092 INFO L87 Difference]: Start difference. First operand 14201 states and 20954 transitions. Second operand has 12 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-03 04:06:56,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:06,440 INFO L93 Difference]: Finished difference Result 41697 states and 61946 transitions. [2022-11-03 04:07:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 04:07:06,441 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 70 [2022-11-03 04:07:06,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:06,636 INFO L225 Difference]: With dead ends: 41697 [2022-11-03 04:07:06,637 INFO L226 Difference]: Without dead ends: 27509 [2022-11-03 04:07:06,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:07:06,872 INFO L413 NwaCegarLoop]: 2336 mSDtfsCounter, 1884 mSDsluCounter, 24732 mSDsCounter, 0 mSdLazyCounter, 3554 mSolverCounterSat, 221 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 24608 SdHoareTripleChecker+Invalid, 3776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 3554 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:06,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1958 Valid, 24608 Invalid, 3776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [221 Valid, 3554 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-11-03 04:07:06,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27509 states. [2022-11-03 04:07:08,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27509 to 24727. [2022-11-03 04:07:08,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24727 states, 15116 states have (on average 1.3649775072770574) internal successors, (20633), 15827 states have internal predecessors, (20633), 7932 states have call successors, (7932), 1674 states have call predecessors, (7932), 1678 states have return successors, (7954), 7813 states have call predecessors, (7954), 7912 states have call successors, (7954) [2022-11-03 04:07:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24727 states to 24727 states and 36519 transitions. [2022-11-03 04:07:08,546 INFO L78 Accepts]: Start accepts. Automaton has 24727 states and 36519 transitions. Word has length 70 [2022-11-03 04:07:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:08,547 INFO L495 AbstractCegarLoop]: Abstraction has 24727 states and 36519 transitions. [2022-11-03 04:07:08,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-03 04:07:08,547 INFO L276 IsEmpty]: Start isEmpty. Operand 24727 states and 36519 transitions. [2022-11-03 04:07:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-03 04:07:08,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:08,550 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:08,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:07:08,550 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:08,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:08,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1509098662, now seen corresponding path program 1 times [2022-11-03 04:07:08,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:08,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143732900] [2022-11-03 04:07:08,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:08,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:09,000 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:07:09,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:09,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143732900] [2022-11-03 04:07:09,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143732900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:09,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:09,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:07:09,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745413983] [2022-11-03 04:07:09,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:09,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:07:09,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:09,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:07:09,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:09,004 INFO L87 Difference]: Start difference. First operand 24727 states and 36519 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:07:11,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:13,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:13,637 INFO L93 Difference]: Finished difference Result 49448 states and 73025 transitions. [2022-11-03 04:07:13,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:07:13,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 80 [2022-11-03 04:07:13,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:13,812 INFO L225 Difference]: With dead ends: 49448 [2022-11-03 04:07:13,812 INFO L226 Difference]: Without dead ends: 24734 [2022-11-03 04:07:13,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:13,905 INFO L413 NwaCegarLoop]: 2425 mSDtfsCounter, 1338 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 3674 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:13,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 3674 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 427 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-03 04:07:13,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24734 states. [2022-11-03 04:07:15,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24734 to 24708. [2022-11-03 04:07:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 15097 states have (on average 1.3643770285487182) internal successors, (20598), 15810 states have internal predecessors, (20598), 7932 states have call successors, (7932), 1674 states have call predecessors, (7932), 1678 states have return successors, (7954), 7811 states have call predecessors, (7954), 7912 states have call successors, (7954) [2022-11-03 04:07:15,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 36484 transitions. [2022-11-03 04:07:15,617 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 36484 transitions. Word has length 80 [2022-11-03 04:07:15,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:15,618 INFO L495 AbstractCegarLoop]: Abstraction has 24708 states and 36484 transitions. [2022-11-03 04:07:15,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:07:15,618 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 36484 transitions. [2022-11-03 04:07:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-03 04:07:15,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:15,622 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:15,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:07:15,622 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:15,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:15,623 INFO L85 PathProgramCache]: Analyzing trace with hash 341091751, now seen corresponding path program 1 times [2022-11-03 04:07:15,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:15,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737092718] [2022-11-03 04:07:15,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:15,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-03 04:07:19,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:19,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737092718] [2022-11-03 04:07:19,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737092718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:19,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:19,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 04:07:19,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213245997] [2022-11-03 04:07:19,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:19,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 04:07:19,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:19,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 04:07:19,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:07:19,244 INFO L87 Difference]: Start difference. First operand 24708 states and 36484 transitions. Second operand has 14 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-03 04:07:21,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:34,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:34,892 INFO L93 Difference]: Finished difference Result 62803 states and 93149 transitions. [2022-11-03 04:07:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-03 04:07:34,893 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 85 [2022-11-03 04:07:34,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:35,097 INFO L225 Difference]: With dead ends: 62803 [2022-11-03 04:07:35,097 INFO L226 Difference]: Without dead ends: 38108 [2022-11-03 04:07:35,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2022-11-03 04:07:35,183 INFO L413 NwaCegarLoop]: 2393 mSDtfsCounter, 2266 mSDsluCounter, 28251 mSDsCounter, 0 mSdLazyCounter, 4152 mSolverCounterSat, 427 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 27903 SdHoareTripleChecker+Invalid, 4580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 4152 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:35,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2332 Valid, 27903 Invalid, 4580 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [427 Valid, 4152 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2022-11-03 04:07:35,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38108 states. [2022-11-03 04:07:37,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38108 to 24700. [2022-11-03 04:07:37,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24700 states, 15089 states have (on average 1.3644376698257008) internal successors, (20588), 15802 states have internal predecessors, (20588), 7932 states have call successors, (7932), 1674 states have call predecessors, (7932), 1678 states have return successors, (7954), 7811 states have call predecessors, (7954), 7912 states have call successors, (7954) [2022-11-03 04:07:37,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24700 states to 24700 states and 36474 transitions. [2022-11-03 04:07:37,615 INFO L78 Accepts]: Start accepts. Automaton has 24700 states and 36474 transitions. Word has length 85 [2022-11-03 04:07:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:37,616 INFO L495 AbstractCegarLoop]: Abstraction has 24700 states and 36474 transitions. [2022-11-03 04:07:37,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-03 04:07:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 24700 states and 36474 transitions. [2022-11-03 04:07:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-03 04:07:37,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:37,626 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:37,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:07:37,626 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:37,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:37,627 INFO L85 PathProgramCache]: Analyzing trace with hash -624177513, now seen corresponding path program 1 times [2022-11-03 04:07:37,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:37,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858798459] [2022-11-03 04:07:37,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:37,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-03 04:07:40,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:40,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858798459] [2022-11-03 04:07:40,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858798459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:40,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:40,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 04:07:40,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889828204] [2022-11-03 04:07:40,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:40,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 04:07:40,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:40,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 04:07:40,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:07:40,302 INFO L87 Difference]: Start difference. First operand 24700 states and 36474 transitions. Second operand has 14 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 04:07:42,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:55,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:55,882 INFO L93 Difference]: Finished difference Result 46707 states and 68948 transitions. [2022-11-03 04:07:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 04:07:55,883 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 92 [2022-11-03 04:07:55,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:56,022 INFO L225 Difference]: With dead ends: 46707 [2022-11-03 04:07:56,022 INFO L226 Difference]: Without dead ends: 22020 [2022-11-03 04:07:56,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=106, Invalid=706, Unknown=0, NotChecked=0, Total=812 [2022-11-03 04:07:56,124 INFO L413 NwaCegarLoop]: 2621 mSDtfsCounter, 1791 mSDsluCounter, 30167 mSDsCounter, 0 mSdLazyCounter, 4290 mSolverCounterSat, 258 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 29813 SdHoareTripleChecker+Invalid, 4549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 4290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:56,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 29813 Invalid, 4549 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [258 Valid, 4290 Invalid, 1 Unknown, 0 Unchecked, 12.8s Time] [2022-11-03 04:07:56,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22020 states. [2022-11-03 04:07:58,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22020 to 21025. [2022-11-03 04:07:58,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21025 states, 12826 states have (on average 1.3638702635272104) internal successors, (17493), 13432 states have internal predecessors, (17493), 6769 states have call successors, (6769), 1424 states have call predecessors, (6769), 1429 states have return successors, (6793), 6672 states have call predecessors, (6793), 6757 states have call successors, (6793) [2022-11-03 04:07:58,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21025 states to 21025 states and 31055 transitions. [2022-11-03 04:07:58,243 INFO L78 Accepts]: Start accepts. Automaton has 21025 states and 31055 transitions. Word has length 92 [2022-11-03 04:07:58,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:58,244 INFO L495 AbstractCegarLoop]: Abstraction has 21025 states and 31055 transitions. [2022-11-03 04:07:58,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 04:07:58,244 INFO L276 IsEmpty]: Start isEmpty. Operand 21025 states and 31055 transitions. [2022-11-03 04:07:58,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-03 04:07:58,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:58,248 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:58,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:07:58,249 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:58,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:58,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1633794201, now seen corresponding path program 1 times [2022-11-03 04:07:58,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:58,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597737177] [2022-11-03 04:07:58,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:58,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 04:07:58,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:58,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597737177] [2022-11-03 04:07:58,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597737177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:58,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:58,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:07:58,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049157977] [2022-11-03 04:07:58,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:58,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:07:58,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:58,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:07:58,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:07:58,737 INFO L87 Difference]: Start difference. First operand 21025 states and 31055 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:08:00,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:03,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:03,879 INFO L93 Difference]: Finished difference Result 42060 states and 62126 transitions. [2022-11-03 04:08:03,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:08:03,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2022-11-03 04:08:03,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:03,964 INFO L225 Difference]: With dead ends: 42060 [2022-11-03 04:08:03,965 INFO L226 Difference]: Without dead ends: 21065 [2022-11-03 04:08:04,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:04,051 INFO L413 NwaCegarLoop]: 1861 mSDtfsCounter, 511 mSDsluCounter, 3461 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 121 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 5016 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:04,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 5016 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 04:08:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21065 states. [2022-11-03 04:08:06,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21065 to 21015. [2022-11-03 04:08:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21015 states, 12822 states have (on average 1.3636718140695678) internal successors, (17485), 13428 states have internal predecessors, (17485), 6765 states have call successors, (6765), 1420 states have call predecessors, (6765), 1427 states have return successors, (6789), 6670 states have call predecessors, (6789), 6753 states have call successors, (6789) [2022-11-03 04:08:06,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21015 states to 21015 states and 31039 transitions. [2022-11-03 04:08:06,131 INFO L78 Accepts]: Start accepts. Automaton has 21015 states and 31039 transitions. Word has length 89 [2022-11-03 04:08:06,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:06,132 INFO L495 AbstractCegarLoop]: Abstraction has 21015 states and 31039 transitions. [2022-11-03 04:08:06,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:08:06,132 INFO L276 IsEmpty]: Start isEmpty. Operand 21015 states and 31039 transitions. [2022-11-03 04:08:06,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 04:08:06,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:06,137 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-03 04:08:06,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 04:08:06,137 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:06,138 INFO L85 PathProgramCache]: Analyzing trace with hash -543347849, now seen corresponding path program 1 times [2022-11-03 04:08:06,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:06,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125135477] [2022-11-03 04:08:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:06,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:06,812 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 04:08:06,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:06,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125135477] [2022-11-03 04:08:06,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125135477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:06,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:06,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:08:06,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083230220] [2022-11-03 04:08:06,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:06,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:08:06,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:06,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:08:06,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:08:06,814 INFO L87 Difference]: Start difference. First operand 21015 states and 31039 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 04:08:08,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:11,541 INFO L93 Difference]: Finished difference Result 22574 states and 33539 transitions. [2022-11-03 04:08:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:08:11,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 87 [2022-11-03 04:08:11,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:11,599 INFO L225 Difference]: With dead ends: 22574 [2022-11-03 04:08:11,599 INFO L226 Difference]: Without dead ends: 15588 [2022-11-03 04:08:11,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:11,620 INFO L413 NwaCegarLoop]: 1842 mSDtfsCounter, 518 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 125 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:11,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 4968 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 04:08:11,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15588 states. [2022-11-03 04:08:13,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15588 to 14074. [2022-11-03 04:08:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14074 states, 8587 states have (on average 1.3622918364970305) internal successors, (11698), 8994 states have internal predecessors, (11698), 4525 states have call successors, (4525), 956 states have call predecessors, (4525), 961 states have return successors, (4537), 4459 states have call predecessors, (4537), 4513 states have call successors, (4537) [2022-11-03 04:08:13,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14074 states to 14074 states and 20760 transitions. [2022-11-03 04:08:13,246 INFO L78 Accepts]: Start accepts. Automaton has 14074 states and 20760 transitions. Word has length 87 [2022-11-03 04:08:13,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:13,247 INFO L495 AbstractCegarLoop]: Abstraction has 14074 states and 20760 transitions. [2022-11-03 04:08:13,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 04:08:13,247 INFO L276 IsEmpty]: Start isEmpty. Operand 14074 states and 20760 transitions. [2022-11-03 04:08:13,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-03 04:08:13,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:13,253 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:13,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 04:08:13,253 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:13,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:13,254 INFO L85 PathProgramCache]: Analyzing trace with hash -741014404, now seen corresponding path program 1 times [2022-11-03 04:08:13,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:13,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103102323] [2022-11-03 04:08:13,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:13,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:13,826 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 04:08:13,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:13,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103102323] [2022-11-03 04:08:13,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103102323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:13,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:13,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:08:13,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812681089] [2022-11-03 04:08:13,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:13,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:08:13,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:13,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:08:13,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:08:13,828 INFO L87 Difference]: Start difference. First operand 14074 states and 20760 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 04:08:15,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:21,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:21,062 INFO L93 Difference]: Finished difference Result 22356 states and 32857 transitions. [2022-11-03 04:08:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 04:08:21,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 89 [2022-11-03 04:08:21,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:21,096 INFO L225 Difference]: With dead ends: 22356 [2022-11-03 04:08:21,096 INFO L226 Difference]: Without dead ends: 8312 [2022-11-03 04:08:21,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:08:21,130 INFO L413 NwaCegarLoop]: 2579 mSDtfsCounter, 2145 mSDsluCounter, 9729 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 252 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 11340 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:21,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 11340 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1562 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-03 04:08:21,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8312 states. [2022-11-03 04:08:21,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8312 to 8229. [2022-11-03 04:08:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8229 states, 5015 states have (on average 1.354137587238285) internal successors, (6791), 5257 states have internal predecessors, (6791), 2619 states have call successors, (2619), 588 states have call predecessors, (2619), 594 states have return successors, (2618), 2572 states have call predecessors, (2618), 2607 states have call successors, (2618) [2022-11-03 04:08:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8229 states to 8229 states and 12028 transitions. [2022-11-03 04:08:21,916 INFO L78 Accepts]: Start accepts. Automaton has 8229 states and 12028 transitions. Word has length 89 [2022-11-03 04:08:21,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:21,917 INFO L495 AbstractCegarLoop]: Abstraction has 8229 states and 12028 transitions. [2022-11-03 04:08:21,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 04:08:21,917 INFO L276 IsEmpty]: Start isEmpty. Operand 8229 states and 12028 transitions. [2022-11-03 04:08:21,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 04:08:21,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:21,923 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:21,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 04:08:21,923 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash -908840680, now seen corresponding path program 1 times [2022-11-03 04:08:21,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:21,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376209821] [2022-11-03 04:08:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:21,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:22,627 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:08:22,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:22,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376209821] [2022-11-03 04:08:22,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376209821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:22,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:22,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:08:22,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888282012] [2022-11-03 04:08:22,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:22,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:08:22,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:22,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:08:22,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:08:22,629 INFO L87 Difference]: Start difference. First operand 8229 states and 12028 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:08:24,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:26,838 INFO L93 Difference]: Finished difference Result 14083 states and 20634 transitions. [2022-11-03 04:08:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:08:26,839 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, (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 91 [2022-11-03 04:08:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:26,859 INFO L225 Difference]: With dead ends: 14083 [2022-11-03 04:08:26,860 INFO L226 Difference]: Without dead ends: 6791 [2022-11-03 04:08:26,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:26,876 INFO L413 NwaCegarLoop]: 1642 mSDtfsCounter, 677 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 4652 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:26,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 4652 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 04:08:26,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6791 states. [2022-11-03 04:08:27,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6791 to 6388. [2022-11-03 04:08:27,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6388 states, 3889 states have (on average 1.3540755978400618) internal successors, (5266), 4076 states have internal predecessors, (5266), 2036 states have call successors, (2036), 458 states have call predecessors, (2036), 462 states have return successors, (2035), 2000 states have call predecessors, (2035), 2026 states have call successors, (2035) [2022-11-03 04:08:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6388 states to 6388 states and 9337 transitions. [2022-11-03 04:08:27,338 INFO L78 Accepts]: Start accepts. Automaton has 6388 states and 9337 transitions. Word has length 91 [2022-11-03 04:08:27,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:27,338 INFO L495 AbstractCegarLoop]: Abstraction has 6388 states and 9337 transitions. [2022-11-03 04:08:27,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:08:27,339 INFO L276 IsEmpty]: Start isEmpty. Operand 6388 states and 9337 transitions. [2022-11-03 04:08:27,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-03 04:08:27,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:27,343 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-03 04:08:27,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 04:08:27,343 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:27,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:27,344 INFO L85 PathProgramCache]: Analyzing trace with hash 284931278, now seen corresponding path program 1 times [2022-11-03 04:08:27,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:27,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470456788] [2022-11-03 04:08:27,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:27,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-03 04:08:28,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:28,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470456788] [2022-11-03 04:08:28,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470456788] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:28,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309824048] [2022-11-03 04:08:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:28,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:28,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:28,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:28,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:08:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:29,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 2460 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 04:08:29,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:29,831 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:08:29,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:29,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309824048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:29,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:08:29,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-11-03 04:08:29,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21245840] [2022-11-03 04:08:29,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:29,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:08:29,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:29,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:08:29,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:08:29,834 INFO L87 Difference]: Start difference. First operand 6388 states and 9337 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:08:31,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:34,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:34,003 INFO L93 Difference]: Finished difference Result 6762 states and 9926 transitions. [2022-11-03 04:08:34,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:08:34,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 97 [2022-11-03 04:08:34,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:34,020 INFO L225 Difference]: With dead ends: 6762 [2022-11-03 04:08:34,021 INFO L226 Difference]: Without dead ends: 4927 [2022-11-03 04:08:34,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:08:34,028 INFO L413 NwaCegarLoop]: 1613 mSDtfsCounter, 647 mSDsluCounter, 3298 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 117 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:34,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 4605 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-03 04:08:34,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2022-11-03 04:08:34,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4575. [2022-11-03 04:08:34,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 2786 states have (on average 1.3524766690595835) internal successors, (3768), 2920 states have internal predecessors, (3768), 1456 states have call successors, (1456), 329 states have call predecessors, (1456), 332 states have return successors, (1455), 1430 states have call predecessors, (1455), 1448 states have call successors, (1455) [2022-11-03 04:08:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 6679 transitions. [2022-11-03 04:08:34,352 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 6679 transitions. Word has length 97 [2022-11-03 04:08:34,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:34,352 INFO L495 AbstractCegarLoop]: Abstraction has 4575 states and 6679 transitions. [2022-11-03 04:08:34,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:08:34,353 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 6679 transitions. [2022-11-03 04:08:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-03 04:08:34,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:34,358 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:34,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:34,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-03 04:08:34,572 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:34,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:34,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1487151798, now seen corresponding path program 1 times [2022-11-03 04:08:34,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:34,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120684442] [2022-11-03 04:08:34,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:34,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-03 04:08:37,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:37,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120684442] [2022-11-03 04:08:37,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120684442] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:37,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478795112] [2022-11-03 04:08:37,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:37,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:37,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:37,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:37,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:08:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:43,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 2446 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-03 04:08:43,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:44,365 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-03 04:08:44,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:44,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478795112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:44,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:08:44,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 17 [2022-11-03 04:08:44,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514551511] [2022-11-03 04:08:44,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:44,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:08:44,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:44,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:08:44,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:08:44,368 INFO L87 Difference]: Start difference. First operand 4575 states and 6679 transitions. Second operand has 13 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2022-11-03 04:08:46,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:52,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:52,180 INFO L93 Difference]: Finished difference Result 6465 states and 9414 transitions. [2022-11-03 04:08:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 04:08:52,180 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 103 [2022-11-03 04:08:52,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:52,188 INFO L225 Difference]: With dead ends: 6465 [2022-11-03 04:08:52,188 INFO L226 Difference]: Without dead ends: 2786 [2022-11-03 04:08:52,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 98 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-11-03 04:08:52,199 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 193 mSDsluCounter, 15941 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 15924 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:52,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 15924 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1862 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-03 04:08:52,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-11-03 04:08:52,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2770. [2022-11-03 04:08:52,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 1687 states have (on average 1.3485477178423237) internal successors, (2275), 1765 states have internal predecessors, (2275), 881 states have call successors, (881), 203 states have call predecessors, (881), 201 states have return successors, (874), 864 states have call predecessors, (874), 874 states have call successors, (874) [2022-11-03 04:08:52,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 4030 transitions. [2022-11-03 04:08:52,537 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 4030 transitions. Word has length 103 [2022-11-03 04:08:52,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:52,539 INFO L495 AbstractCegarLoop]: Abstraction has 2770 states and 4030 transitions. [2022-11-03 04:08:52,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2022-11-03 04:08:52,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 4030 transitions. [2022-11-03 04:08:52,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-03 04:08:52,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:52,545 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-03 04:08:52,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:52,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:52,772 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:52,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:52,773 INFO L85 PathProgramCache]: Analyzing trace with hash -985642888, now seen corresponding path program 1 times [2022-11-03 04:08:52,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:52,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874748089] [2022-11-03 04:08:52,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:52,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-03 04:08:53,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:53,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874748089] [2022-11-03 04:08:53,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874748089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:53,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:53,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:08:53,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203562719] [2022-11-03 04:08:53,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:53,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:53,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:53,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:53,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:53,132 INFO L87 Difference]: Start difference. First operand 2770 states and 4030 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:08:55,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:56,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:56,718 INFO L93 Difference]: Finished difference Result 2774 states and 4032 transitions. [2022-11-03 04:08:56,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:08:56,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 100 [2022-11-03 04:08:56,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:56,728 INFO L225 Difference]: With dead ends: 2774 [2022-11-03 04:08:56,728 INFO L226 Difference]: Without dead ends: 2771 [2022-11-03 04:08:56,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:56,730 INFO L413 NwaCegarLoop]: 2401 mSDtfsCounter, 1321 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 3607 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:56,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 3607 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 04:08:56,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2022-11-03 04:08:56,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2769. [2022-11-03 04:08:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 1687 states have (on average 1.3473621813870778) internal successors, (2273), 1764 states have internal predecessors, (2273), 880 states have call successors, (880), 203 states have call predecessors, (880), 201 states have return successors, (874), 864 states have call predecessors, (874), 874 states have call successors, (874) [2022-11-03 04:08:56,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4027 transitions. [2022-11-03 04:08:56,962 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4027 transitions. Word has length 100 [2022-11-03 04:08:56,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:56,962 INFO L495 AbstractCegarLoop]: Abstraction has 2769 states and 4027 transitions. [2022-11-03 04:08:56,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:08:56,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4027 transitions. [2022-11-03 04:08:56,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-03 04:08:56,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:56,968 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:56,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 04:08:56,969 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:56,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:56,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1864403245, now seen corresponding path program 1 times [2022-11-03 04:08:56,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:56,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563879091] [2022-11-03 04:08:56,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:56,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-03 04:08:57,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:57,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563879091] [2022-11-03 04:08:57,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563879091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:57,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:57,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:08:57,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523957646] [2022-11-03 04:08:57,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:57,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:08:57,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:57,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:08:57,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:08:57,888 INFO L87 Difference]: Start difference. First operand 2769 states and 4027 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 04:08:59,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:03,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:03,240 INFO L93 Difference]: Finished difference Result 4657 states and 6755 transitions. [2022-11-03 04:09:03,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:09:03,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 108 [2022-11-03 04:09:03,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:03,248 INFO L225 Difference]: With dead ends: 4657 [2022-11-03 04:09:03,249 INFO L226 Difference]: Without dead ends: 2767 [2022-11-03 04:09:03,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:09:03,254 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 522 mSDsluCounter, 9945 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 125 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 10578 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:03,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 10578 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1188 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 04:09:03,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2022-11-03 04:09:03,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2758. [2022-11-03 04:09:03,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2758 states, 1680 states have (on average 1.3482142857142858) internal successors, (2265), 1757 states have internal predecessors, (2265), 878 states have call successors, (878), 201 states have call predecessors, (878), 199 states have return successors, (872), 862 states have call predecessors, (872), 872 states have call successors, (872) [2022-11-03 04:09:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 4015 transitions. [2022-11-03 04:09:03,455 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 4015 transitions. Word has length 108 [2022-11-03 04:09:03,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:03,455 INFO L495 AbstractCegarLoop]: Abstraction has 2758 states and 4015 transitions. [2022-11-03 04:09:03,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 04:09:03,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 4015 transitions. [2022-11-03 04:09:03,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-03 04:09:03,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:03,460 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:03,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 04:09:03,461 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:03,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:03,461 INFO L85 PathProgramCache]: Analyzing trace with hash 295691391, now seen corresponding path program 1 times [2022-11-03 04:09:03,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:03,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112747935] [2022-11-03 04:09:03,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:03,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:09:03,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 04:09:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:09:03,928 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 04:09:03,929 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 04:09:03,930 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:09:03,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 04:09:03,936 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:03,941 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:09:04,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:09:04 BoogieIcfgContainer [2022-11-03 04:09:04,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:09:04,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:09:04,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:09:04,242 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:09:04,244 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:32" (3/4) ... [2022-11-03 04:09:04,250 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 04:09:04,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:09:04,251 INFO L158 Benchmark]: Toolchain (without parser) took 177748.79ms. Allocated memory was 98.6MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 54.4MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2022-11-03 04:09:04,251 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:09:04,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1997.78ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 54.2MB in the beginning and 76.0MB in the end (delta: -21.8MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2022-11-03 04:09:04,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 276.74ms. Allocated memory is still 127.9MB. Free memory was 76.0MB in the beginning and 56.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-03 04:09:04,252 INFO L158 Benchmark]: Boogie Preprocessor took 268.78ms. Allocated memory is still 127.9MB. Free memory was 56.5MB in the beginning and 61.8MB in the end (delta: -5.3MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-03 04:09:04,252 INFO L158 Benchmark]: RCFGBuilder took 23099.57ms. Allocated memory was 127.9MB in the beginning and 830.5MB in the end (delta: 702.5MB). Free memory was 61.8MB in the beginning and 562.6MB in the end (delta: -500.8MB). Peak memory consumption was 510.7MB. Max. memory is 16.1GB. [2022-11-03 04:09:04,253 INFO L158 Benchmark]: TraceAbstraction took 152088.43ms. Allocated memory was 830.5MB in the beginning and 4.1GB in the end (delta: 3.3GB). Free memory was 562.6MB in the beginning and 2.0GB in the end (delta: -1.4GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2022-11-03 04:09:04,253 INFO L158 Benchmark]: Witness Printer took 8.17ms. Allocated memory is still 4.1GB. Free memory is still 2.0GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:09:04,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1997.78ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 54.2MB in the beginning and 76.0MB in the end (delta: -21.8MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 276.74ms. Allocated memory is still 127.9MB. Free memory was 76.0MB in the beginning and 56.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 268.78ms. Allocated memory is still 127.9MB. Free memory was 56.5MB in the beginning and 61.8MB in the end (delta: -5.3MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * RCFGBuilder took 23099.57ms. Allocated memory was 127.9MB in the beginning and 830.5MB in the end (delta: 702.5MB). Free memory was 61.8MB in the beginning and 562.6MB in the end (delta: -500.8MB). Peak memory consumption was 510.7MB. Max. memory is 16.1GB. * TraceAbstraction took 152088.43ms. Allocated memory was 830.5MB in the beginning and 4.1GB in the end (delta: 3.3GB). Free memory was 562.6MB in the beginning and 2.0GB in the end (delta: -1.4GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 8.17ms. Allocated memory is still 4.1GB. Free memory is still 2.0GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3238]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 5432. Possible FailurePath: [L3261] int LDV_IN_INTERRUPT = 1; [L3262] int ldv_state_variable_2 ; [L3263] int ref_cnt ; [L3264] int ldv_state_variable_1 ; [L3265] struct file *printer_io_operations_group2 ; [L3266] struct inode *printer_io_operations_group1 ; [L3267] int ldv_state_variable_0 ; [L3268] struct usb_gadget *printer_driver_group0 ; [L3752] static unsigned int epnum ; [L3924-L3927] static struct mutex printer_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)-1, {0, 0, "printer_mutex.wait_lock", 0, 0UL}}}}, {& printer_mutex.wait_list, & printer_mutex.wait_list}, 0, 0, (void *)(& printer_mutex), {0, 0, "printer_mutex", 0, 0UL}}; [L3928-L3930] static char const shortname[8U] = { 'p', 'r', 'i', 'n', 't', 'e', 'r', '\000'}; [L3931-L3935] static char const driver_desc[15U] = { 'P', 'r', 'i', 'n', 't', 'e', 'r', ' ', 'G', 'a', 'd', 'g', 'e', 't', '\000'}; [L3936] static dev_t g_printer_devno ; [L3937] static struct class *usb_gadget_class ; [L3938] static struct printer_dev usb_printer_gadget ; [L3939] static ushort idVendor ; [L3940] static ushort idProduct ; [L3941] static ushort bcdDevice ; [L3942] static char *iManufacturer ; [L3943] static char *iProduct ; [L3944] static char *iSerialNum ; [L3945] static char *iPNPstring ; [L3946] static unsigned int qlen = 10U; [L3947-L3949] static struct usb_device_descriptor device_desc = {18U, 1U, 512U, 0U, 0U, 0U, (unsigned char)0, 1317U, 42152U, (unsigned short)0, 1U, 2U, 3U, 1U}; [L3950] static struct usb_otg_descriptor otg_desc = {3U, 9U, 1U}; [L3951-L3952] static struct usb_config_descriptor config_desc = {9U, 2U, (unsigned short)0, 1U, 1U, 0U, 192U, 1U}; [L3953-L3954] static struct usb_interface_descriptor intf_desc = {9U, 4U, 0U, (unsigned char)0, 2U, 7U, 1U, 2U, 0U}; [L3955-L3956] static struct usb_endpoint_descriptor fs_ep_in_desc = {7U, 5U, 128U, 2U, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3957-L3958] static struct usb_endpoint_descriptor fs_ep_out_desc = {7U, 5U, 0U, 2U, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3959-L3960] static struct usb_descriptor_header const *fs_printer_function[11U] = { (struct usb_descriptor_header const *)(& otg_desc), (struct usb_descriptor_header const *)(& intf_desc), (struct usb_descriptor_header const *)(& fs_ep_in_desc), (struct usb_descriptor_header const *)(& fs_ep_out_desc), (struct usb_descriptor_header const *)0}; [L3961-L3962] static struct usb_endpoint_descriptor hs_ep_in_desc = {7U, 5U, (unsigned char)0, 2U, 512U, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3963-L3964] static struct usb_endpoint_descriptor hs_ep_out_desc = {7U, 5U, (unsigned char)0, 2U, 512U, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3965-L3966] static struct usb_qualifier_descriptor dev_qualifier = {10U, 6U, 512U, 7U, (unsigned char)0, (unsigned char)0, (unsigned char)0, 1U, (unsigned char)0}; [L3967-L3968] static struct usb_descriptor_header const *hs_printer_function[11U] = { (struct usb_descriptor_header const *)(& otg_desc), (struct usb_descriptor_header const *)(& intf_desc), (struct usb_descriptor_header const *)(& hs_ep_in_desc), (struct usb_descriptor_header const *)(& hs_ep_out_desc), (struct usb_descriptor_header const *)0}; [L3969] static char manufacturer[50U] ; [L3970-L3974] static char product_desc[40U] = { 'P', 'r', 'i', 'n', 't', 'e', 'r', ' ', 'G', 'a', 'd', 'g', 'e', 't', '\000'}; [L3975] static char serial_num[40U] = { '1', '\000'}; [L3976-L3987] static char pnp_string[1024U] = { 'X', 'X', 'M', 'F', 'G', ':', 'l', 'i', 'n', 'u', 'x', ';', 'M', 'D', 'L', ':', 'g', '_', 'p', 'r', 'i', 'n', 't', 'e', 'r', ';', 'C', 'L', 'S', ':', 'P', 'R', 'I', 'N', 'T', 'E', 'R', ';', 'S', 'N', ':', '1', ';', '\000'}; [L3988-L3990] static struct usb_string strings[4U] = { {1U, (char const *)(& manufacturer)}, {2U, (char const *)(& product_desc)}, {3U, (char const *)(& serial_num)}}; [L3991] static struct usb_gadget_strings stringtab = {1033U, (struct usb_string *)(& strings)}; [L4632-L4635] static struct file_operations const printer_io_operations = {& __this_module, 0, & printer_read, & printer_write, 0, 0, 0, & printer_poll, & printer_ioctl, 0, 0, & printer_open, 0, & printer_close, & printer_fsync, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L5410-L5413] static struct usb_gadget_driver printer_driver = {(char *)(& driver_desc), 3, & printer_bind, & printer_unbind, & printer_setup, & printer_disconnect, 0, 0, {(char const *)(& shortname), 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}}; [L5465] int ldv_retval_0 ; [L5466] int ldv_retval_1 ; [L5469] int ldv_retval_3 ; [L5470] int ldv_retval_2 ; [L5894] int ldv_usb_gadget_class = 0; [L5895] int ldv_usb_gadget_chrdev = 0; [L5896] int ldv_usb_gadget = 0; [L5494] struct usb_ctrlrequest *ldvarg0 ; [L5495] void *tmp ; [L5496] char *ldvarg7 ; [L5497] void *tmp___0 ; [L5498] struct poll_table_struct *ldvarg3 ; [L5499] void *tmp___1 ; [L5500] loff_t *ldvarg5 ; [L5501] void *tmp___2 ; [L5502] size_t ldvarg6 ; [L5503] size_t tmp___3 ; [L5504] unsigned long ldvarg1 ; [L5505] unsigned long tmp___4 ; [L5506] loff_t *ldvarg8 ; [L5507] void *tmp___5 ; [L5508] int ldvarg4 ; [L5509] int tmp___6 ; [L5510] char *ldvarg10 ; [L5511] void *tmp___7 ; [L5512] size_t ldvarg9 ; [L5513] size_t tmp___8 ; [L5514] unsigned int ldvarg2 ; [L5515] unsigned int tmp___9 ; [L5516] int tmp___10 ; [L5517] int tmp___11 ; [L5518] int tmp___12 ; [L5519] int tmp___13 ; VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5521] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=8, strings={121:0}, stringtab={122:0}, tmp___0=-2, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5521] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(8UL)={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5521] tmp = ldv_zalloc(8UL) [L5522] ldvarg0 = (struct usb_ctrlrequest *)tmp VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5523] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=1, strings={121:0}, stringtab={122:0}, tmp___0=-3, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5523] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5523] tmp___0 = ldv_zalloc(1UL) [L5524] ldvarg7 = (char *)tmp___0 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5525] CALL, EXPR ldv_zalloc(16UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=16, \result={0:0}, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=16, strings={121:0}, stringtab={122:0}, tmp___0=-4, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5525] RET, EXPR ldv_zalloc(16UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(16UL)={0:0}, ldvarg0={0:0}, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5525] tmp___1 = ldv_zalloc(16UL) [L5526] ldvarg3 = (struct poll_table_struct *)tmp___1 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg3={0:0}, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5527] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=8, strings={121:0}, stringtab={122:0}, tmp___0=-5, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5527] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg3={0:0}, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5527] tmp___2 = ldv_zalloc(8UL) [L5528] ldvarg5 = (loff_t *)tmp___2 [L5529] tmp___3 = __VERIFIER_nondet_size_t() [L5530] ldvarg6 = tmp___3 [L5531] tmp___4 = __VERIFIER_nondet_ulong() [L5532] ldvarg1 = tmp___4 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=4294967348, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=4294967348, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5533] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=8, strings={121:0}, stringtab={122:0}, tmp___0=-6, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5533] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg1=4294967348, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=4294967348, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5533] tmp___5 = ldv_zalloc(8UL) [L5534] ldvarg8 = (loff_t *)tmp___5 [L5535] tmp___6 = __VERIFIER_nondet_int() [L5536] ldvarg4 = tmp___6 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=4294967348, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=4294967348, tmp___5={0:0}, tmp___6=-7, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5537] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=1, strings={121:0}, stringtab={122:0}, tmp___0=-8, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5537] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1=4294967348, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=4294967348, tmp___5={0:0}, tmp___6=-7, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5537] tmp___7 = ldv_zalloc(1UL) [L5538] ldvarg10 = (char *)tmp___7 [L5539] tmp___8 = __VERIFIER_nondet_size_t() [L5540] ldvarg9 = tmp___8 [L5541] tmp___9 = __VERIFIER_nondet_uint() [L5542] ldvarg2 = tmp___9 [L5543] FCALL ldv_initialize() [L5544] ldv_state_variable_1 = 0 [L5545] ref_cnt = 0 [L5546] ldv_state_variable_0 = 1 [L5547] ldv_state_variable_2 = 0 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=4294967348, ldvarg10={0:0}, ldvarg2=91, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551607, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=4294967348, tmp___5={0:0}, tmp___6=-7, tmp___7={0:0}, tmp___8=18446744073709551607, tmp___9=91, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=4294967348, ldvarg10={0:0}, ldvarg2=91, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551607, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___2={0:0}, tmp___3=0, tmp___4=4294967348, tmp___5={0:0}, tmp___6=-7, tmp___7={0:0}, tmp___8=18446744073709551607, tmp___9=91, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: [L5610] case 1: VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=4294967348, ldvarg10={0:0}, ldvarg2=91, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551607, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=0, tmp___4=4294967348, tmp___5={0:0}, tmp___6=-7, tmp___7={0:0}, tmp___8=18446744073709551607, tmp___9=91, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5611] COND TRUE ldv_state_variable_0 == 1 [L5612] CALL, EXPR init() [L5416] int status ; [L5417] void *tmp ; [L5418] long tmp___0 ; [L5419] long tmp___1 ; [L5421] CALL, EXPR ldv_create_class() [L5899] void *is_got ; VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5901] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [\old(size)=120, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3184] void *p ; [L3185] void *tmp ; [L3186] int tmp___0 ; [L3188] tmp___0 = __VERIFIER_nondet_int() [L3189] COND TRUE tmp___0 != 0 [L3190] return ((void *)0); VAL [\old(size)=120, \result={0:0}, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=120, strings={121:0}, stringtab={122:0}, tmp___0=1, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5901] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct class))={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5901] is_got = ldv_malloc(sizeof(struct class)) [L5902] COND TRUE (unsigned long )is_got <= 2012UL VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5903] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5907] COND TRUE ldv_usb_gadget_class == 0 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5911] ldv_usb_gadget_class = 1 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5914] return (is_got); [L5421] RET, EXPR ldv_create_class() [L5421] tmp = ldv_create_class() [L5422] usb_gadget_class = (struct class *)tmp VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5423] CALL, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5736] long tmp ; VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5738] CALL, EXPR ldv_is_err(ptr) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5861] return ((unsigned long )ptr > 2012UL); [L5738] RET, EXPR ldv_is_err(ptr) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5738] tmp = ldv_is_err(ptr) [L5739] return (tmp); [L5423] RET, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, IS_ERR((void const *)usb_gadget_class)=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5423] tmp___1 = IS_ERR((void const *)usb_gadget_class) [L5424] COND FALSE !(tmp___1 != 0L) [L5432] CALL, EXPR ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5762] ldv_func_ret_type ldv_func_res ; [L5763] int tmp ; [L5764] int tmp___0 ; [L5766] CALL, EXPR alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L6074] return __VERIFIER_nondet_int(); [L5766] RET, EXPR alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L5766] tmp = alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L5767] ldv_func_res = tmp [L5768] CALL, EXPR ldv_register_chrdev_region() [L5954] int is_reg ; VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5956] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5846] int ret ; [L5847] int tmp ; [L5849] CALL, EXPR ldv_undef_int() [L3220] int tmp ; [L3222] tmp = __VERIFIER_nondet_int() [L3223] return (tmp); [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, ret=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5851] COND TRUE ret <= 0 [L5855] return (ret); [L5956] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_undef_int_nonpositive()=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5956] is_reg = ldv_undef_int_nonpositive() [L5957] COND TRUE ! is_reg VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5958] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5962] COND TRUE ldv_usb_gadget_chrdev == 0 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5966] ldv_usb_gadget_chrdev = 1 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5969] return (is_reg); [L5768] RET, EXPR ldv_register_chrdev_region() [L5768] tmp___0 = ldv_register_chrdev_region() [L5769] return (tmp___0); [L5432] RET, EXPR ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5432] status = ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5433] COND FALSE !(status != 0) [L5439] CALL, EXPR ldv_usb_gadget_register_driver_9(& printer_driver) [L5783] ldv_func_ret_type___0 ldv_func_res ; [L5784] int tmp ; [L5785] int tmp___0 ; [L5787] CALL, EXPR usb_gadget_register_driver(ldv_func_arg1) [L6157] return __VERIFIER_nondet_int(); [L5787] RET, EXPR usb_gadget_register_driver(ldv_func_arg1) [L5787] tmp = usb_gadget_register_driver(ldv_func_arg1) [L5788] ldv_func_res = tmp [L5789] CALL, EXPR ldv_register_usb_gadget() [L5989] int is_reg ; VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5991] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5846] int ret ; [L5847] int tmp ; [L5849] CALL, EXPR ldv_undef_int() [L3220] int tmp ; [L3222] tmp = __VERIFIER_nondet_int() [L3223] return (tmp); [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, ret=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5851] COND TRUE ret <= 0 [L5855] return (ret); [L5991] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_undef_int_nonpositive()=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5991] is_reg = ldv_undef_int_nonpositive() [L5992] COND TRUE ! is_reg VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5993] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5997] ldv_usb_gadget = 1 VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L6000] return (is_reg); [L5789] RET, EXPR ldv_register_usb_gadget() [L5789] tmp___0 = ldv_register_usb_gadget() [L5790] return (tmp___0); [L5439] RET, EXPR ldv_usb_gadget_register_driver_9(& printer_driver) [L5439] status = ldv_usb_gadget_register_driver_9(& printer_driver) [L5440] COND FALSE !(status != 0) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, status=0, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5446] return (status); VAL [\result=0, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, status=0, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5612] RET, EXPR init() [L5612] ldv_retval_2 = init() [L5613] COND FALSE !(ldv_retval_2 != 0) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=4294967348, ldvarg10={0:0}, ldvarg2=91, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551607, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=0, tmp___4=4294967348, tmp___5={0:0}, tmp___6=-7, tmp___7={0:0}, tmp___8=18446744073709551607, tmp___9=91, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5618] COND TRUE ldv_retval_2 == 0 [L5619] ldv_state_variable_0 = 2 [L5620] ldv_state_variable_1 = 1 [L5621] CALL ldv_initialize_usb_gadget_driver_1() [L5473] void *tmp ; VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5475] CALL, EXPR ldv_zalloc(1072UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1072, \result={0:0}, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=1072, strings={121:0}, stringtab={122:0}, tmp___0=-10, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5475] RET, EXPR ldv_zalloc(1072UL) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldv_zalloc(1072UL)={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5475] tmp = ldv_zalloc(1072UL) [L5476] printer_driver_group0 = (struct usb_gadget *)tmp [L5621] RET ldv_initialize_usb_gadget_driver_1() [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=4294967348, ldvarg10={0:0}, ldvarg2=91, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551607, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=0, tmp___4=4294967348, tmp___5={0:0}, tmp___6=-7, tmp___7={0:0}, tmp___8=18446744073709551607, tmp___9=91, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=4294967348, ldvarg10={0:0}, ldvarg2=91, ldvarg3={0:0}, ldvarg4=-7, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551607, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=0, tmp___2={0:0}, tmp___3=0, tmp___4=4294967348, tmp___5={0:0}, tmp___6=-7, tmp___7={0:0}, tmp___8=18446744073709551607, tmp___9=91, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5603] COND TRUE ldv_state_variable_0 == 2 && ref_cnt == 0 [L5604] CALL cleanup() [L5451] int status ; VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5453] FCALL mutex_lock_nested(& usb_printer_gadget.lock_printer_io, 0U) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5454] CALL ldv_class_destroy_12(usb_gadget_class) [L5813] FCALL class_destroy(ldv_func_arg1) VAL [__this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={0:0}, ldv_func_arg1={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5814] CALL ldv_unregister_class() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5940] COND FALSE !(ldv_usb_gadget == 0) VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5942] CALL ldv_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3238] reach_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967340:4294967373}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 68 procedures, 993 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 151.7s, OverallIterations: 17, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 107.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 mSolverCounterUnknown, 20112 SdHoareTripleChecker+Valid, 88.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19284 mSDsluCounter, 157872 SdHoareTripleChecker+Invalid, 82.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140409 mSDsCounter, 1798 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20618 IncrementalHoareTripleChecker+Invalid, 22432 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1798 mSolverCounterUnsat, 31074 mSDtfsCounter, 20618 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 381 GetRequests, 238 SyntacticMatches, 4 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24727occurred in iteration=5, InterpolantAutomatonStates: 143, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 19698 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 16.5s InterpolantComputationTime, 1634 NumberOfCodeBlocks, 1634 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1504 ConstructedInterpolants, 0 QuantifiedInterpolants, 2585 SizeOfPredicates, 20 NumberOfNonLiveVariables, 4906 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 18 InterpolantComputations, 16 PerfectInterpolantSequences, 1216/1221 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 04:09:04,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI --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 e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:09:06,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:09:06,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:09:06,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:09:06,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:09:06,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:09:06,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:09:06,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:09:06,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:09:06,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:09:06,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:09:06,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:09:06,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:09:06,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:09:06,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:09:06,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:09:06,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:09:06,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:09:06,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:09:06,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:09:06,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:09:06,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:09:06,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:09:06,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:09:06,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:09:06,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:09:06,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:09:06,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:09:06,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:09:06,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:09:06,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:09:06,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:09:06,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:09:06,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:09:06,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:09:06,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:09:06,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:09:06,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:09:06,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:09:06,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:09:06,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:09:06,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 04:09:06,986 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:09:06,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:09:06,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:09:06,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:09:06,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:09:06,988 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:09:06,988 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:09:06,988 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:09:06,989 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:09:06,989 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:09:06,989 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:09:06,989 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:09:06,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:09:06,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:09:06,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:09:06,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:09:06,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:09:06,991 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 04:09:06,991 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 04:09:06,992 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 04:09:06,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:09:06,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:09:06,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:09:06,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:09:06,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 04:09:06,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:09:06,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:09:06,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:09:06,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:09:06,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:09:06,994 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 04:09:06,994 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 04:09:06,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:09:06,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:09:06,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 04:09:06,995 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2022-11-03 04:09:07,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:09:07,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:09:07,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:09:07,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:09:07,400 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:09:07,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-03 04:09:07,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/data/e385fcc8f/63cf05c15f224ac893fb2fb01ea0d2ff/FLAG66d418deb [2022-11-03 04:09:08,302 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:09:08,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-03 04:09:08,341 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/data/e385fcc8f/63cf05c15f224ac893fb2fb01ea0d2ff/FLAG66d418deb [2022-11-03 04:09:08,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/data/e385fcc8f/63cf05c15f224ac893fb2fb01ea0d2ff [2022-11-03 04:09:08,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:09:08,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:09:08,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:09:08,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:09:08,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:09:08,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:08" (1/1) ... [2022-11-03 04:09:08,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd83fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:08, skipping insertion in model container [2022-11-03 04:09:08,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:08" (1/1) ... [2022-11-03 04:09:08,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:09:08,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:09:09,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-11-03 04:09:10,020 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-11-03 04:09:10,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:09:10,430 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-03 04:09:10,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:09:10,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-11-03 04:09:10,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:09:10,829 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:09:10,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-11-03 04:09:11,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:09:11,201 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:09:11,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11 WrapperNode [2022-11-03 04:09:11,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:09:11,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:09:11,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:09:11,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:09:11,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,489 INFO L138 Inliner]: procedures = 219, calls = 1278, calls flagged for inlining = 89, calls inlined = 89, statements flattened = 3416 [2022-11-03 04:09:11,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:09:11,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:09:11,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:09:11,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:09:11,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,719 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:09:11,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:09:11,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:09:11,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:09:11,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (1/1) ... [2022-11-03 04:09:11,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:09:11,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:11,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:09:11,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:09:11,872 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-11-03 04:09:11,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-11-03 04:09:11,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-03 04:09:11,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-03 04:09:11,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-03 04:09:11,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-03 04:09:11,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 04:09:11,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 04:09:11,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-03 04:09:11,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 04:09:11,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 04:09:11,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 04:09:11,874 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-11-03 04:09:11,874 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-11-03 04:09:11,874 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-11-03 04:09:11,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-11-03 04:09:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-11-03 04:09:11,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-11-03 04:09:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 04:09:11,875 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 04:09:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 04:09:11,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 04:09:11,876 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-11-03 04:09:11,876 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-11-03 04:09:11,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-11-03 04:09:11,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-11-03 04:09:11,876 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 04:09:11,876 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 04:09:11,877 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-11-03 04:09:11,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-11-03 04:09:11,877 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 04:09:11,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 04:09:11,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 04:09:11,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 04:09:11,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-11-03 04:09:11,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-11-03 04:09:11,878 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:09:11,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:09:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 04:09:11,879 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 04:09:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-03 04:09:11,879 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-03 04:09:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-11-03 04:09:11,880 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-11-03 04:09:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:09:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 04:09:11,880 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 04:09:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:09:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-11-03 04:09:11,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-11-03 04:09:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-11-03 04:09:11,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-11-03 04:09:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 04:09:11,883 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 04:09:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 04:09:11,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 04:09:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-03 04:09:11,884 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-03 04:09:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 04:09:11,884 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 04:09:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-03 04:09:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-03 04:09:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-03 04:09:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:09:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 04:09:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:09:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-11-03 04:09:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-11-03 04:09:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 04:09:11,887 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 04:09:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-03 04:09:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 04:09:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-03 04:09:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-03 04:09:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 04:09:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 04:09:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-03 04:09:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-03 04:09:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 04:09:11,889 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 04:09:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 04:09:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 04:09:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-11-03 04:09:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-11-03 04:09:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 04:09:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 04:09:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 04:09:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 04:09:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 04:09:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 04:09:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 04:09:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 04:09:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 04:09:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 04:09:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-11-03 04:09:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-11-03 04:09:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 04:09:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 04:09:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-11-03 04:09:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-11-03 04:09:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-03 04:09:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-03 04:09:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-11-03 04:09:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-11-03 04:09:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-11-03 04:09:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-11-03 04:09:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-03 04:09:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-11-03 04:09:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-11-03 04:09:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-03 04:09:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-03 04:09:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-03 04:09:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-03 04:09:11,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-03 04:09:11,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 04:09:11,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 04:09:11,902 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-11-03 04:09:11,903 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-11-03 04:09:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:09:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-03 04:09:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-11-03 04:09:11,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-11-03 04:09:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-11-03 04:09:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-11-03 04:09:11,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-11-03 04:09:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 04:09:11,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 04:09:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:09:11,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:09:11,910 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 04:09:11,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-03 04:09:11,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-03 04:09:11,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-03 04:09:11,910 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-11-03 04:09:11,910 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-11-03 04:09:11,911 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-11-03 04:09:11,911 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-11-03 04:09:11,911 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-03 04:09:11,911 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-03 04:09:11,911 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 04:09:11,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 04:09:11,911 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 04:09:11,912 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 04:09:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-11-03 04:09:11,912 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-11-03 04:09:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-03 04:09:11,912 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-03 04:09:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 04:09:11,912 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 04:09:11,913 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-11-03 04:09:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-11-03 04:09:11,913 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-11-03 04:09:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-11-03 04:09:11,913 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-11-03 04:09:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-11-03 04:09:11,913 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 04:09:11,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 04:09:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-11-03 04:09:11,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-11-03 04:09:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-03 04:09:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 04:09:11,914 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 04:09:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:09:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:09:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 04:09:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 04:09:12,813 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:09:12,817 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:09:12,968 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 04:09:47,235 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:09:47,271 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:09:47,272 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 04:09:47,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:47 BoogieIcfgContainer [2022-11-03 04:09:47,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:09:47,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:09:47,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:09:47,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:09:47,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:09:08" (1/3) ... [2022-11-03 04:09:47,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9c4f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:09:47, skipping insertion in model container [2022-11-03 04:09:47,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11" (2/3) ... [2022-11-03 04:09:47,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9c4f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:09:47, skipping insertion in model container [2022-11-03 04:09:47,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:47" (3/3) ... [2022-11-03 04:09:47,290 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-03 04:09:47,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:09:47,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:09:47,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:09:47,443 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4aeb1e60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:09:47,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:09:47,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 1265 states, 878 states have (on average 1.3849658314350797) internal successors, (1216), 921 states have internal predecessors, (1216), 320 states have call successors, (320), 66 states have call predecessors, (320), 65 states have return successors, (316), 313 states have call predecessors, (316), 316 states have call successors, (316) [2022-11-03 04:09:47,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-03 04:09:47,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:47,484 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:47,487 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:47,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:47,496 INFO L85 PathProgramCache]: Analyzing trace with hash 552217187, now seen corresponding path program 1 times [2022-11-03 04:09:47,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:47,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745130225] [2022-11-03 04:09:47,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:47,516 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:47,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:47,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:47,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 04:09:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:49,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:09:49,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:50,440 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:09:50,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:50,441 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:50,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745130225] [2022-11-03 04:09:50,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745130225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:50,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:50,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:09:50,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242926842] [2022-11-03 04:09:50,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:50,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:09:50,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:50,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:09:50,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:09:50,500 INFO L87 Difference]: Start difference. First operand has 1265 states, 878 states have (on average 1.3849658314350797) internal successors, (1216), 921 states have internal predecessors, (1216), 320 states have call successors, (320), 66 states have call predecessors, (320), 65 states have return successors, (316), 313 states have call predecessors, (316), 316 states have call successors, (316) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 04:09:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:50,941 INFO L93 Difference]: Finished difference Result 3597 states and 5353 transitions. [2022-11-03 04:09:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:09:50,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56 [2022-11-03 04:09:50,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:50,983 INFO L225 Difference]: With dead ends: 3597 [2022-11-03 04:09:50,983 INFO L226 Difference]: Without dead ends: 2318 [2022-11-03 04:09:50,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:09:50,999 INFO L413 NwaCegarLoop]: 2010 mSDtfsCounter, 1682 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 3663 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:51,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 3663 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:09:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-11-03 04:09:51,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2314. [2022-11-03 04:09:51,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 1596 states have (on average 1.3615288220551378) internal successors, (2173), 1657 states have internal predecessors, (2173), 596 states have call successors, (596), 123 states have call predecessors, (596), 121 states have return successors, (584), 575 states have call predecessors, (584), 584 states have call successors, (584) [2022-11-03 04:09:51,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3353 transitions. [2022-11-03 04:09:51,290 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3353 transitions. Word has length 56 [2022-11-03 04:09:51,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:51,292 INFO L495 AbstractCegarLoop]: Abstraction has 2314 states and 3353 transitions. [2022-11-03 04:09:51,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 04:09:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3353 transitions. [2022-11-03 04:09:51,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-03 04:09:51,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:51,305 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:51,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 04:09:51,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:51,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:51,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:51,521 INFO L85 PathProgramCache]: Analyzing trace with hash -62076608, now seen corresponding path program 1 times [2022-11-03 04:09:51,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:51,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372002146] [2022-11-03 04:09:51,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:51,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:51,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:51,528 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:51,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 04:09:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:53,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:09:53,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:54,360 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:09:54,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:54,361 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:54,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372002146] [2022-11-03 04:09:54,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372002146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:54,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:54,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:09:54,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180744398] [2022-11-03 04:09:54,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:54,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:09:54,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:54,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:09:54,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:09:54,364 INFO L87 Difference]: Start difference. First operand 2314 states and 3353 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 04:09:54,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:54,760 INFO L93 Difference]: Finished difference Result 6880 states and 9982 transitions. [2022-11-03 04:09:54,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:09:54,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 57 [2022-11-03 04:09:54,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:54,793 INFO L225 Difference]: With dead ends: 6880 [2022-11-03 04:09:54,793 INFO L226 Difference]: Without dead ends: 4581 [2022-11-03 04:09:54,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:09:54,803 INFO L413 NwaCegarLoop]: 2061 mSDtfsCounter, 1666 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 3712 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:54,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 3712 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:09:54,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2022-11-03 04:09:54,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 4573. [2022-11-03 04:09:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 3163 states have (on average 1.3629465697122984) internal successors, (4311), 3276 states have internal predecessors, (4311), 1170 states have call successors, (1170), 243 states have call predecessors, (1170), 239 states have return successors, (1152), 1137 states have call predecessors, (1152), 1152 states have call successors, (1152) [2022-11-03 04:09:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 6633 transitions. [2022-11-03 04:09:55,045 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 6633 transitions. Word has length 57 [2022-11-03 04:09:55,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:55,046 INFO L495 AbstractCegarLoop]: Abstraction has 4573 states and 6633 transitions. [2022-11-03 04:09:55,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 04:09:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 6633 transitions. [2022-11-03 04:09:55,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-03 04:09:55,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:55,048 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:55,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:55,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:55,265 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:55,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1572137986, now seen corresponding path program 1 times [2022-11-03 04:09:55,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:55,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854094536] [2022-11-03 04:09:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:55,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:55,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:55,269 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:55,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 04:09:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:57,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:09:57,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:57,169 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:09:57,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:57,169 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:57,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854094536] [2022-11-03 04:09:57,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854094536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:57,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:57,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:09:57,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602363861] [2022-11-03 04:09:57,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:57,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:09:57,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:57,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:09:57,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:09:57,173 INFO L87 Difference]: Start difference. First operand 4573 states and 6633 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 04:09:59,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:00,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:00,442 INFO L93 Difference]: Finished difference Result 13449 states and 19531 transitions. [2022-11-03 04:10:00,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:10:00,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2022-11-03 04:10:00,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:00,516 INFO L225 Difference]: With dead ends: 13449 [2022-11-03 04:10:00,517 INFO L226 Difference]: Without dead ends: 8891 [2022-11-03 04:10:00,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:10:00,547 INFO L413 NwaCegarLoop]: 2113 mSDtfsCounter, 1653 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 3738 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:00,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 3738 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 04:10:00,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8891 states. [2022-11-03 04:10:01,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8891 to 8883. [2022-11-03 04:10:01,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 6138 states have (on average 1.3647768002606713) internal successors, (8377), 6346 states have internal predecessors, (8377), 2270 states have call successors, (2270), 479 states have call predecessors, (2270), 474 states have return successors, (2252), 2225 states have call predecessors, (2252), 2252 states have call successors, (2252) [2022-11-03 04:10:01,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 12899 transitions. [2022-11-03 04:10:01,169 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 12899 transitions. Word has length 59 [2022-11-03 04:10:01,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:01,170 INFO L495 AbstractCegarLoop]: Abstraction has 8883 states and 12899 transitions. [2022-11-03 04:10:01,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 04:10:01,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 12899 transitions. [2022-11-03 04:10:01,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-03 04:10:01,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:01,174 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:01,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:01,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:01,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:01,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:01,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1660206286, now seen corresponding path program 1 times [2022-11-03 04:10:01,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:01,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520111640] [2022-11-03 04:10:01,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:01,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:01,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:01,402 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:01,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 04:10:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:03,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 1359 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 04:10:03,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:10:03,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:03,920 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:03,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520111640] [2022-11-03 04:10:03,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520111640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:03,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:03,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:10:03,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536138895] [2022-11-03 04:10:03,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:03,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:10:03,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:03,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:10:03,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:03,923 INFO L87 Difference]: Start difference. First operand 8883 states and 12899 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 04:10:04,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:04,841 INFO L93 Difference]: Finished difference Result 18900 states and 27642 transitions. [2022-11-03 04:10:04,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:10:04,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2022-11-03 04:10:04,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:04,933 INFO L225 Difference]: With dead ends: 18900 [2022-11-03 04:10:04,933 INFO L226 Difference]: Without dead ends: 10032 [2022-11-03 04:10:04,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:04,977 INFO L413 NwaCegarLoop]: 1954 mSDtfsCounter, 233 mSDsluCounter, 5646 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 7600 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:04,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 7600 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:10:04,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10032 states. [2022-11-03 04:10:05,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10032 to 8899. [2022-11-03 04:10:05,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 6150 states have (on average 1.3640650406504065) internal successors, (8389), 6358 states have internal predecessors, (8389), 2270 states have call successors, (2270), 479 states have call predecessors, (2270), 478 states have return successors, (2264), 2229 states have call predecessors, (2264), 2252 states have call successors, (2264) [2022-11-03 04:10:05,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 12923 transitions. [2022-11-03 04:10:05,709 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 12923 transitions. Word has length 75 [2022-11-03 04:10:05,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:05,710 INFO L495 AbstractCegarLoop]: Abstraction has 8899 states and 12923 transitions. [2022-11-03 04:10:05,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 04:10:05,710 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 12923 transitions. [2022-11-03 04:10:05,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-03 04:10:05,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:05,713 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:05,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:05,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:05,936 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:05,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:05,936 INFO L85 PathProgramCache]: Analyzing trace with hash -495083486, now seen corresponding path program 1 times [2022-11-03 04:10:05,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:05,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942282176] [2022-11-03 04:10:05,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:05,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:05,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:05,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:05,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 04:10:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:07,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1361 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-03 04:10:07,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:10:12,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:12,543 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:12,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942282176] [2022-11-03 04:10:12,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942282176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:12,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:12,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-03 04:10:12,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827739720] [2022-11-03 04:10:12,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:12,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:10:12,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:12,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:10:12,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:10:12,546 INFO L87 Difference]: Start difference. First operand 8899 states and 12923 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-03 04:10:14,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:17,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:19,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:22,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:04,389 INFO L93 Difference]: Finished difference Result 26018 states and 38079 transitions. [2022-11-03 04:12:04,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 04:12:04,391 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2022-11-03 04:12:04,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:04,492 INFO L225 Difference]: With dead ends: 26018 [2022-11-03 04:12:04,493 INFO L226 Difference]: Without dead ends: 17134 [2022-11-03 04:12:04,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2022-11-03 04:12:04,534 INFO L413 NwaCegarLoop]: 2238 mSDtfsCounter, 2645 mSDsluCounter, 20510 mSDsCounter, 0 mSdLazyCounter, 3257 mSolverCounterSat, 242 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 22748 SdHoareTripleChecker+Invalid, 3503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 3257 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:04,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2719 Valid, 22748 Invalid, 3503 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [242 Valid, 3257 Invalid, 4 Unknown, 0 Unchecked, 104.5s Time] [2022-11-03 04:12:04,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17134 states. [2022-11-03 04:12:05,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17134 to 15432. [2022-11-03 04:12:05,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15432 states, 10662 states have (on average 1.3655974488838867) internal successors, (14560), 11023 states have internal predecessors, (14560), 3940 states have call successors, (3940), 828 states have call predecessors, (3940), 829 states have return successors, (3943), 3874 states have call predecessors, (3943), 3922 states have call successors, (3943) [2022-11-03 04:12:05,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15432 states to 15432 states and 22443 transitions. [2022-11-03 04:12:05,784 INFO L78 Accepts]: Start accepts. Automaton has 15432 states and 22443 transitions. Word has length 77 [2022-11-03 04:12:05,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:05,784 INFO L495 AbstractCegarLoop]: Abstraction has 15432 states and 22443 transitions. [2022-11-03 04:12:05,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-03 04:12:05,786 INFO L276 IsEmpty]: Start isEmpty. Operand 15432 states and 22443 transitions. [2022-11-03 04:12:05,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-03 04:12:05,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:05,789 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:05,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:06,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:06,012 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:06,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:06,012 INFO L85 PathProgramCache]: Analyzing trace with hash 883910775, now seen corresponding path program 1 times [2022-11-03 04:12:06,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:06,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769101508] [2022-11-03 04:12:06,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:06,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:06,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:06,016 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:06,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 04:12:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:07,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:12:07,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:12:11,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:11,953 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:11,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769101508] [2022-11-03 04:12:11,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769101508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:11,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:11,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:12:11,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561357090] [2022-11-03 04:12:11,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:11,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:12:11,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:11,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:12:11,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:11,955 INFO L87 Difference]: Start difference. First operand 15432 states and 22443 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-03 04:12:13,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:13,456 INFO L93 Difference]: Finished difference Result 46243 states and 67267 transitions. [2022-11-03 04:12:13,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:12:13,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 83 [2022-11-03 04:12:13,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:13,617 INFO L225 Difference]: With dead ends: 46243 [2022-11-03 04:12:13,617 INFO L226 Difference]: Without dead ends: 30823 [2022-11-03 04:12:13,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:13,670 INFO L413 NwaCegarLoop]: 2146 mSDtfsCounter, 1640 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 3820 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:13,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 3820 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:12:13,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30823 states. [2022-11-03 04:12:15,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30823 to 30774. [2022-11-03 04:12:15,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30774 states, 21275 states have (on average 1.3659224441833138) internal successors, (29060), 21986 states have internal predecessors, (29060), 7848 states have call successors, (7848), 1646 states have call predecessors, (7848), 1650 states have return successors, (7870), 7729 states have call predecessors, (7870), 7828 states have call successors, (7870) [2022-11-03 04:12:16,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30774 states to 30774 states and 44778 transitions. [2022-11-03 04:12:16,223 INFO L78 Accepts]: Start accepts. Automaton has 30774 states and 44778 transitions. Word has length 83 [2022-11-03 04:12:16,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:16,225 INFO L495 AbstractCegarLoop]: Abstraction has 30774 states and 44778 transitions. [2022-11-03 04:12:16,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-03 04:12:16,225 INFO L276 IsEmpty]: Start isEmpty. Operand 30774 states and 44778 transitions. [2022-11-03 04:12:16,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-03 04:12:16,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:16,235 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:16,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:16,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:16,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:16,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:16,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1889059966, now seen corresponding path program 1 times [2022-11-03 04:12:16,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:16,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975115258] [2022-11-03 04:12:16,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:16,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:16,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:16,457 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:16,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 04:12:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:18,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 1402 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:12:18,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:19,948 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:12:19,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:19,948 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:19,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975115258] [2022-11-03 04:12:19,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975115258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:19,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:19,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:12:19,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069855339] [2022-11-03 04:12:19,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:19,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:12:19,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:19,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:12:19,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:19,950 INFO L87 Difference]: Start difference. First operand 30774 states and 44778 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:12:22,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:24,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:24,509 INFO L93 Difference]: Finished difference Result 61540 states and 89541 transitions. [2022-11-03 04:12:24,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:12:24,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2022-11-03 04:12:24,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:24,670 INFO L225 Difference]: With dead ends: 61540 [2022-11-03 04:12:24,671 INFO L226 Difference]: Without dead ends: 30781 [2022-11-03 04:12:24,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:24,755 INFO L413 NwaCegarLoop]: 3305 mSDtfsCounter, 1620 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 5007 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:24,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1620 Valid, 5007 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-11-03 04:12:24,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30781 states. [2022-11-03 04:12:26,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30781 to 30755. [2022-11-03 04:12:26,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30755 states, 21256 states have (on average 1.3654968009032744) internal successors, (29025), 21969 states have internal predecessors, (29025), 7848 states have call successors, (7848), 1646 states have call predecessors, (7848), 1650 states have return successors, (7870), 7727 states have call predecessors, (7870), 7828 states have call successors, (7870) [2022-11-03 04:12:27,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30755 states to 30755 states and 44743 transitions. [2022-11-03 04:12:27,087 INFO L78 Accepts]: Start accepts. Automaton has 30755 states and 44743 transitions. Word has length 92 [2022-11-03 04:12:27,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:27,088 INFO L495 AbstractCegarLoop]: Abstraction has 30755 states and 44743 transitions. [2022-11-03 04:12:27,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:12:27,089 INFO L276 IsEmpty]: Start isEmpty. Operand 30755 states and 44743 transitions. [2022-11-03 04:12:27,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-03 04:12:27,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:27,093 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:27,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-11-03 04:12:27,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:27,316 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:27,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:27,316 INFO L85 PathProgramCache]: Analyzing trace with hash -969334546, now seen corresponding path program 1 times [2022-11-03 04:12:27,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:27,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099156793] [2022-11-03 04:12:27,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:27,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:27,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:27,319 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:27,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 04:12:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:29,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-03 04:12:29,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-03 04:12:51,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:51,975 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:51,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099156793] [2022-11-03 04:12:51,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099156793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:51,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:51,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-03 04:12:51,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410433523] [2022-11-03 04:12:51,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:51,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 04:12:51,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:51,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 04:12:51,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-11-03 04:12:51,977 INFO L87 Difference]: Start difference. First operand 30755 states and 44743 transitions. Second operand has 22 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 16 states have internal predecessors, (55), 7 states have call successors, (14), 3 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2022-11-03 04:12:54,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:29,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:29,241 INFO L93 Difference]: Finished difference Result 58087 states and 84521 transitions. [2022-11-03 04:14:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 04:14:29,242 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 16 states have internal predecessors, (55), 7 states have call successors, (14), 3 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) Word has length 97 [2022-11-03 04:14:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:29,376 INFO L225 Difference]: With dead ends: 58087 [2022-11-03 04:14:29,376 INFO L226 Difference]: Without dead ends: 27347 [2022-11-03 04:14:29,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 35.5s TimeCoverageRelationStatistics Valid=169, Invalid=1553, Unknown=0, NotChecked=0, Total=1722 [2022-11-03 04:14:29,462 INFO L413 NwaCegarLoop]: 3075 mSDtfsCounter, 2252 mSDsluCounter, 49380 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 295 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 52455 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:29,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2263 Valid, 52455 Invalid, 2529 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [295 Valid, 2233 Invalid, 1 Unknown, 0 Unchecked, 76.2s Time] [2022-11-03 04:14:29,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27347 states. [2022-11-03 04:14:30,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27347 to 12095. [2022-11-03 04:14:30,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12095 states, 8345 states have (on average 1.3642899940083884) internal successors, (11385), 8620 states have internal predecessors, (11385), 3097 states have call successors, (3097), 659 states have call predecessors, (3097), 652 states have return successors, (3085), 3046 states have call predecessors, (3085), 3085 states have call successors, (3085) [2022-11-03 04:14:30,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12095 states to 12095 states and 17567 transitions. [2022-11-03 04:14:30,960 INFO L78 Accepts]: Start accepts. Automaton has 12095 states and 17567 transitions. Word has length 97 [2022-11-03 04:14:30,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:30,961 INFO L495 AbstractCegarLoop]: Abstraction has 12095 states and 17567 transitions. [2022-11-03 04:14:30,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 16 states have internal predecessors, (55), 7 states have call successors, (14), 3 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2022-11-03 04:14:30,962 INFO L276 IsEmpty]: Start isEmpty. Operand 12095 states and 17567 transitions. [2022-11-03 04:14:30,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 04:14:30,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:30,966 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:31,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:31,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:14:31,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:14:31,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:31,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1801608750, now seen corresponding path program 1 times [2022-11-03 04:14:31,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:14:31,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464728383] [2022-11-03 04:14:31,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:31,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:14:31,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:14:31,193 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:14:31,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 04:14:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:33,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:14:33,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:34,538 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:14:34,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:14:34,538 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:14:34,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464728383] [2022-11-03 04:14:34,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464728383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:14:34,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:14:34,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:14:34,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757933780] [2022-11-03 04:14:34,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:14:34,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:14:34,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:14:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:14:34,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:14:34,541 INFO L87 Difference]: Start difference. First operand 12095 states and 17567 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:14:38,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:38,181 INFO L93 Difference]: Finished difference Result 22525 states and 32803 transitions. [2022-11-03 04:14:38,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:14:38,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2022-11-03 04:14:38,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:38,239 INFO L225 Difference]: With dead ends: 22525 [2022-11-03 04:14:38,239 INFO L226 Difference]: Without dead ends: 10466 [2022-11-03 04:14:38,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:14:38,278 INFO L413 NwaCegarLoop]: 2142 mSDtfsCounter, 1367 mSDsluCounter, 7887 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 10029 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:38,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 10029 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 04:14:38,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10466 states. [2022-11-03 04:14:39,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10466 to 9921. [2022-11-03 04:14:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9921 states, 6844 states have (on average 1.3635300993571011) internal successors, (9332), 7068 states have internal predecessors, (9332), 2538 states have call successors, (2538), 545 states have call predecessors, (2538), 538 states have return successors, (2528), 2496 states have call predecessors, (2528), 2528 states have call successors, (2528) [2022-11-03 04:14:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9921 states to 9921 states and 14398 transitions. [2022-11-03 04:14:39,404 INFO L78 Accepts]: Start accepts. Automaton has 9921 states and 14398 transitions. Word has length 104 [2022-11-03 04:14:39,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:39,405 INFO L495 AbstractCegarLoop]: Abstraction has 9921 states and 14398 transitions. [2022-11-03 04:14:39,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:14:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 9921 states and 14398 transitions. [2022-11-03 04:14:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 04:14:39,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:39,410 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:39,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:39,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:14:39,624 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:14:39,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:39,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1289039656, now seen corresponding path program 1 times [2022-11-03 04:14:39,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:14:39,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596639279] [2022-11-03 04:14:39,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:39,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:14:39,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:14:39,632 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:14:39,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 04:14:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:41,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:14:41,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:42,687 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:14:42,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:14:42,688 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:14:42,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596639279] [2022-11-03 04:14:42,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596639279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:14:42,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:14:42,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:14:42,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898557566] [2022-11-03 04:14:42,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:14:42,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:14:42,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:14:42,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:14:42,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:14:42,691 INFO L87 Difference]: Start difference. First operand 9921 states and 14398 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:14:45,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:45,462 INFO L93 Difference]: Finished difference Result 11563 states and 16860 transitions. [2022-11-03 04:14:45,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:14:45,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2022-11-03 04:14:45,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:45,485 INFO L225 Difference]: With dead ends: 11563 [2022-11-03 04:14:45,485 INFO L226 Difference]: Without dead ends: 7177 [2022-11-03 04:14:45,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:14:45,502 INFO L413 NwaCegarLoop]: 2046 mSDtfsCounter, 905 mSDsluCounter, 7578 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 9624 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:45,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 9624 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-03 04:14:45,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7177 states. [2022-11-03 04:14:46,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7177 to 6645. [2022-11-03 04:14:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6645 states, 4585 states have (on average 1.3611777535441658) internal successors, (6241), 4735 states have internal predecessors, (6241), 1696 states have call successors, (1696), 367 states have call predecessors, (1696), 363 states have return successors, (1688), 1668 states have call predecessors, (1688), 1688 states have call successors, (1688) [2022-11-03 04:14:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6645 states to 6645 states and 9625 transitions. [2022-11-03 04:14:46,270 INFO L78 Accepts]: Start accepts. Automaton has 6645 states and 9625 transitions. Word has length 104 [2022-11-03 04:14:46,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:46,271 INFO L495 AbstractCegarLoop]: Abstraction has 6645 states and 9625 transitions. [2022-11-03 04:14:46,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:14:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6645 states and 9625 transitions. [2022-11-03 04:14:46,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-03 04:14:46,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:46,276 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:46,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:46,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:14:46,480 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:14:46,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:46,481 INFO L85 PathProgramCache]: Analyzing trace with hash 602249427, now seen corresponding path program 1 times [2022-11-03 04:14:46,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:14:46,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858333436] [2022-11-03 04:14:46,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:46,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:14:46,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:14:46,483 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:14:46,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 04:14:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:48,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:14:48,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-03 04:14:49,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:14:49,241 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:14:49,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858333436] [2022-11-03 04:14:49,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858333436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:14:49,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:14:49,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:14:49,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653634770] [2022-11-03 04:14:49,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:14:49,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:14:49,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:14:49,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:14:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:14:49,243 INFO L87 Difference]: Start difference. First operand 6645 states and 9625 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 04:14:52,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:52,193 INFO L93 Difference]: Finished difference Result 7227 states and 10545 transitions. [2022-11-03 04:14:52,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:14:52,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2022-11-03 04:14:52,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:52,208 INFO L225 Difference]: With dead ends: 7227 [2022-11-03 04:14:52,209 INFO L226 Difference]: Without dead ends: 5039 [2022-11-03 04:14:52,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:14:52,216 INFO L413 NwaCegarLoop]: 2174 mSDtfsCounter, 845 mSDsluCounter, 7597 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 9771 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:52,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 9771 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 04:14:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5039 states. [2022-11-03 04:14:52,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5039 to 4484. [2022-11-03 04:14:52,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4484 states, 3094 states have (on average 1.3574660633484164) internal successors, (4200), 3196 states have internal predecessors, (4200), 1141 states have call successors, (1141), 251 states have call predecessors, (1141), 248 states have return successors, (1133), 1120 states have call predecessors, (1133), 1133 states have call successors, (1133) [2022-11-03 04:14:52,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 6474 transitions. [2022-11-03 04:14:52,643 INFO L78 Accepts]: Start accepts. Automaton has 4484 states and 6474 transitions. Word has length 107 [2022-11-03 04:14:52,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:52,643 INFO L495 AbstractCegarLoop]: Abstraction has 4484 states and 6474 transitions. [2022-11-03 04:14:52,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 04:14:52,643 INFO L276 IsEmpty]: Start isEmpty. Operand 4484 states and 6474 transitions. [2022-11-03 04:14:52,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-03 04:14:52,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:52,647 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:52,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-11-03 04:14:52,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:14:52,848 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:14:52,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:52,848 INFO L85 PathProgramCache]: Analyzing trace with hash -455362982, now seen corresponding path program 1 times [2022-11-03 04:14:52,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:14:52,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117278482] [2022-11-03 04:14:52,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:52,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:14:52,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:14:52,855 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:14:52,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 04:14:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:54,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:14:54,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:55,758 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-03 04:14:55,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:14:55,758 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:14:55,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117278482] [2022-11-03 04:14:55,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117278482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:14:55,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:14:55,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:14:55,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887141088] [2022-11-03 04:14:55,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:14:55,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:14:55,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:14:55,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:14:55,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:14:55,761 INFO L87 Difference]: Start difference. First operand 4484 states and 6474 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:14:58,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:58,442 INFO L93 Difference]: Finished difference Result 8926 states and 12897 transitions. [2022-11-03 04:14:58,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:14:58,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2022-11-03 04:14:58,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:58,461 INFO L225 Difference]: With dead ends: 8926 [2022-11-03 04:14:58,462 INFO L226 Difference]: Without dead ends: 4478 [2022-11-03 04:14:58,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:14:58,475 INFO L413 NwaCegarLoop]: 1995 mSDtfsCounter, 789 mSDsluCounter, 6944 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 8939 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:58,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 8939 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 04:14:58,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2022-11-03 04:14:59,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 4478. [2022-11-03 04:14:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4478 states, 3091 states have (on average 1.357165965706891) internal successors, (4195), 3193 states have internal predecessors, (4195), 1139 states have call successors, (1139), 249 states have call predecessors, (1139), 247 states have return successors, (1131), 1119 states have call predecessors, (1131), 1131 states have call successors, (1131) [2022-11-03 04:14:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4478 states to 4478 states and 6465 transitions. [2022-11-03 04:14:59,056 INFO L78 Accepts]: Start accepts. Automaton has 4478 states and 6465 transitions. Word has length 110 [2022-11-03 04:14:59,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:59,056 INFO L495 AbstractCegarLoop]: Abstraction has 4478 states and 6465 transitions. [2022-11-03 04:14:59,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:14:59,056 INFO L276 IsEmpty]: Start isEmpty. Operand 4478 states and 6465 transitions. [2022-11-03 04:14:59,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-03 04:14:59,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:59,063 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:59,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:59,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:14:59,276 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:14:59,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:59,276 INFO L85 PathProgramCache]: Analyzing trace with hash -845367944, now seen corresponding path program 1 times [2022-11-03 04:14:59,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:14:59,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197549946] [2022-11-03 04:14:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:59,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:14:59,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:14:59,278 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:14:59,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 04:15:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:01,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 04:15:01,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:03,167 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-03 04:15:03,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:15:03,167 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:15:03,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197549946] [2022-11-03 04:15:03,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197549946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:15:03,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:15:03,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:15:03,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963193194] [2022-11-03 04:15:03,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:15:03,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:15:03,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:15:03,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:15:03,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:15:03,170 INFO L87 Difference]: Start difference. First operand 4478 states and 6465 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 04:15:09,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:09,803 INFO L93 Difference]: Finished difference Result 7866 states and 11344 transitions. [2022-11-03 04:15:09,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:15:09,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2022-11-03 04:15:09,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:09,815 INFO L225 Difference]: With dead ends: 7866 [2022-11-03 04:15:09,815 INFO L226 Difference]: Without dead ends: 3424 [2022-11-03 04:15:09,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:15:09,825 INFO L413 NwaCegarLoop]: 1924 mSDtfsCounter, 2692 mSDsluCounter, 8667 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2692 SdHoareTripleChecker+Valid, 10591 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:09,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2692 Valid, 10591 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 04:15:09,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2022-11-03 04:15:10,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 3424. [2022-11-03 04:15:10,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3424 states, 2362 states have (on average 1.3513971210838274) internal successors, (3192), 2439 states have internal predecessors, (3192), 867 states have call successors, (867), 196 states have call predecessors, (867), 194 states have return successors, (860), 851 states have call predecessors, (860), 860 states have call successors, (860) [2022-11-03 04:15:10,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3424 states to 3424 states and 4919 transitions. [2022-11-03 04:15:10,195 INFO L78 Accepts]: Start accepts. Automaton has 3424 states and 4919 transitions. Word has length 109 [2022-11-03 04:15:10,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:10,196 INFO L495 AbstractCegarLoop]: Abstraction has 3424 states and 4919 transitions. [2022-11-03 04:15:10,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 04:15:10,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3424 states and 4919 transitions. [2022-11-03 04:15:10,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-03 04:15:10,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:10,203 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:10,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 04:15:10,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:15:10,410 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:10,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:10,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1694153764, now seen corresponding path program 1 times [2022-11-03 04:15:10,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:15:10,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911240273] [2022-11-03 04:15:10,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:10,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:15:10,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:15:10,413 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:15:10,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 04:15:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:12,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:15:12,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:15:14,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:15:14,563 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:15:14,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911240273] [2022-11-03 04:15:14,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911240273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:15:14,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:15:14,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:15:14,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867722235] [2022-11-03 04:15:14,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:15:14,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:15:14,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:15:14,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:15:14,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:15:14,566 INFO L87 Difference]: Start difference. First operand 3424 states and 4919 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:15:16,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:17,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:17,735 INFO L93 Difference]: Finished difference Result 3428 states and 4921 transitions. [2022-11-03 04:15:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:15:17,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-11-03 04:15:17,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:17,745 INFO L225 Difference]: With dead ends: 3428 [2022-11-03 04:15:17,745 INFO L226 Difference]: Without dead ends: 3425 [2022-11-03 04:15:17,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:15:17,747 INFO L413 NwaCegarLoop]: 3284 mSDtfsCounter, 1600 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 4933 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:17,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 4933 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 04:15:17,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2022-11-03 04:15:18,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 3423. [2022-11-03 04:15:18,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3423 states, 2362 states have (on average 1.3505503810330228) internal successors, (3190), 2438 states have internal predecessors, (3190), 866 states have call successors, (866), 196 states have call predecessors, (866), 194 states have return successors, (860), 851 states have call predecessors, (860), 860 states have call successors, (860) [2022-11-03 04:15:18,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 4916 transitions. [2022-11-03 04:15:18,017 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 4916 transitions. Word has length 120 [2022-11-03 04:15:18,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:18,018 INFO L495 AbstractCegarLoop]: Abstraction has 3423 states and 4916 transitions. [2022-11-03 04:15:18,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:15:18,018 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 4916 transitions. [2022-11-03 04:15:18,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-03 04:15:18,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:18,025 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:18,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 04:15:18,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:15:18,248 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:18,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash -485833321, now seen corresponding path program 1 times [2022-11-03 04:15:18,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:15:18,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494134885] [2022-11-03 04:15:18,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:18,250 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:15:18,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:15:18,251 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:15:18,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 04:15:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:20,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 1469 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 04:15:20,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:22,393 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:15:22,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:15:22,393 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:15:22,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494134885] [2022-11-03 04:15:22,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494134885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:15:22,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:15:22,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:15:22,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281535725] [2022-11-03 04:15:22,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:15:22,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:15:22,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:15:22,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:15:22,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:15:22,396 INFO L87 Difference]: Start difference. First operand 3423 states and 4916 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 04:15:24,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:30,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:30,142 INFO L93 Difference]: Finished difference Result 4676 states and 6671 transitions. [2022-11-03 04:15:30,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 04:15:30,142 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2022-11-03 04:15:30,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:30,148 INFO L225 Difference]: With dead ends: 4676 [2022-11-03 04:15:30,148 INFO L226 Difference]: Without dead ends: 2294 [2022-11-03 04:15:30,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-11-03 04:15:30,153 INFO L413 NwaCegarLoop]: 1682 mSDtfsCounter, 23 mSDsluCounter, 10068 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 11750 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:30,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 11750 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-03 04:15:30,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2022-11-03 04:15:30,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2294. [2022-11-03 04:15:30,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2294 states, 1583 states have (on average 1.3480732785849652) internal successors, (2134), 1634 states have internal predecessors, (2134), 580 states have call successors, (580), 131 states have call predecessors, (580), 130 states have return successors, (576), 570 states have call predecessors, (576), 576 states have call successors, (576) [2022-11-03 04:15:30,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2294 states to 2294 states and 3290 transitions. [2022-11-03 04:15:30,337 INFO L78 Accepts]: Start accepts. Automaton has 2294 states and 3290 transitions. Word has length 124 [2022-11-03 04:15:30,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:30,337 INFO L495 AbstractCegarLoop]: Abstraction has 2294 states and 3290 transitions. [2022-11-03 04:15:30,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 04:15:30,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2294 states and 3290 transitions. [2022-11-03 04:15:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-03 04:15:30,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:30,345 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:30,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 04:15:30,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:15:30,568 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:30,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:30,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2031280561, now seen corresponding path program 1 times [2022-11-03 04:15:30,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:15:30,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932666577] [2022-11-03 04:15:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:30,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:15:30,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:15:30,571 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:15:30,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 04:15:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:32,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:15:32,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:33,577 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-03 04:15:33,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:15:33,577 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:15:33,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932666577] [2022-11-03 04:15:33,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932666577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:15:33,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:15:33,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:15:33,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517765591] [2022-11-03 04:15:33,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:15:33,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:15:33,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:15:33,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:15:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:15:33,580 INFO L87 Difference]: Start difference. First operand 2294 states and 3290 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-03 04:15:35,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:36,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:36,823 INFO L93 Difference]: Finished difference Result 3395 states and 4885 transitions. [2022-11-03 04:15:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:15:36,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 130 [2022-11-03 04:15:36,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:36,830 INFO L225 Difference]: With dead ends: 3395 [2022-11-03 04:15:36,830 INFO L226 Difference]: Without dead ends: 2267 [2022-11-03 04:15:36,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:15:36,833 INFO L413 NwaCegarLoop]: 3119 mSDtfsCounter, 1584 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 4740 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:36,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 4740 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 04:15:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2022-11-03 04:15:37,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 2267. [2022-11-03 04:15:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 1567 states have (on average 1.349074664964901) internal successors, (2114), 1616 states have internal predecessors, (2114), 573 states have call successors, (573), 127 states have call predecessors, (573), 126 states have return successors, (571), 565 states have call predecessors, (571), 571 states have call successors, (571) [2022-11-03 04:15:37,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 3258 transitions. [2022-11-03 04:15:37,017 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 3258 transitions. Word has length 130 [2022-11-03 04:15:37,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:37,018 INFO L495 AbstractCegarLoop]: Abstraction has 2267 states and 3258 transitions. [2022-11-03 04:15:37,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-03 04:15:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 3258 transitions. [2022-11-03 04:15:37,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-03 04:15:37,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:37,024 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:37,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-11-03 04:15:37,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:15:37,248 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:37,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:37,248 INFO L85 PathProgramCache]: Analyzing trace with hash -443454606, now seen corresponding path program 1 times [2022-11-03 04:15:37,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:15:37,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412042983] [2022-11-03 04:15:37,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:37,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:15:37,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:15:37,250 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:15:37,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 04:15:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:15:39,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 04:15:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:15:41,862 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-03 04:15:41,863 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 04:15:41,864 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:15:41,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 04:15:42,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:15:42,090 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:42,095 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:15:42,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:15:42 BoogieIcfgContainer [2022-11-03 04:15:42,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:15:42,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:15:42,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:15:42,422 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:15:42,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:47" (3/4) ... [2022-11-03 04:15:42,427 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 04:15:42,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:15:42,428 INFO L158 Benchmark]: Toolchain (without parser) took 393595.50ms. Allocated memory was 52.4MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 32.1MB in the beginning and 1.1GB in the end (delta: -1.1GB). Peak memory consumption was 754.8MB. Max. memory is 16.1GB. [2022-11-03 04:15:42,428 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 52.4MB. Free memory was 33.4MB in the beginning and 33.4MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:15:42,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2364.63ms. Allocated memory was 52.4MB in the beginning and 132.1MB in the end (delta: 79.7MB). Free memory was 32.0MB in the beginning and 65.3MB in the end (delta: -33.4MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2022-11-03 04:15:42,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 287.23ms. Allocated memory is still 132.1MB. Free memory was 65.3MB in the beginning and 69.0MB in the end (delta: -3.7MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-11-03 04:15:42,429 INFO L158 Benchmark]: Boogie Preprocessor took 297.54ms. Allocated memory is still 132.1MB. Free memory was 69.0MB in the beginning and 65.1MB in the end (delta: 3.9MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-11-03 04:15:42,430 INFO L158 Benchmark]: RCFGBuilder took 35488.38ms. Allocated memory was 132.1MB in the beginning and 782.2MB in the end (delta: 650.1MB). Free memory was 64.6MB in the beginning and 610.1MB in the end (delta: -545.6MB). Peak memory consumption was 474.5MB. Max. memory is 16.1GB. [2022-11-03 04:15:42,434 INFO L158 Benchmark]: TraceAbstraction took 355138.22ms. Allocated memory was 782.2MB in the beginning and 1.9GB in the end (delta: 1.1GB). Free memory was 610.1MB in the beginning and 1.1GB in the end (delta: -516.9MB). Peak memory consumption was 602.7MB. Max. memory is 16.1GB. [2022-11-03 04:15:42,434 INFO L158 Benchmark]: Witness Printer took 6.64ms. Allocated memory is still 1.9GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 813.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:15:42,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 52.4MB. Free memory was 33.4MB in the beginning and 33.4MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2364.63ms. Allocated memory was 52.4MB in the beginning and 132.1MB in the end (delta: 79.7MB). Free memory was 32.0MB in the beginning and 65.3MB in the end (delta: -33.4MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 287.23ms. Allocated memory is still 132.1MB. Free memory was 65.3MB in the beginning and 69.0MB in the end (delta: -3.7MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 297.54ms. Allocated memory is still 132.1MB. Free memory was 69.0MB in the beginning and 65.1MB in the end (delta: 3.9MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * RCFGBuilder took 35488.38ms. Allocated memory was 132.1MB in the beginning and 782.2MB in the end (delta: 650.1MB). Free memory was 64.6MB in the beginning and 610.1MB in the end (delta: -545.6MB). Peak memory consumption was 474.5MB. Max. memory is 16.1GB. * TraceAbstraction took 355138.22ms. Allocated memory was 782.2MB in the beginning and 1.9GB in the end (delta: 1.1GB). Free memory was 610.1MB in the beginning and 1.1GB in the end (delta: -516.9MB). Peak memory consumption was 602.7MB. Max. memory is 16.1GB. * Witness Printer took 6.64ms. Allocated memory is still 1.9GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 813.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3238]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 5432. Possible FailurePath: [L3261] int LDV_IN_INTERRUPT = 1; [L3262] int ldv_state_variable_2 ; [L3263] int ref_cnt ; [L3264] int ldv_state_variable_1 ; [L3265] struct file *printer_io_operations_group2 ; [L3266] struct inode *printer_io_operations_group1 ; [L3267] int ldv_state_variable_0 ; [L3268] struct usb_gadget *printer_driver_group0 ; [L3752] static unsigned int epnum ; [L3924-L3927] static struct mutex printer_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)-1, {0, 0, "printer_mutex.wait_lock", 0, 0UL}}}}, {& printer_mutex.wait_list, & printer_mutex.wait_list}, 0, 0, (void *)(& printer_mutex), {0, 0, "printer_mutex", 0, 0UL}}; [L3928-L3930] static char const shortname[8U] = { 'p', 'r', 'i', 'n', 't', 'e', 'r', '\000'}; [L3931-L3935] static char const driver_desc[15U] = { 'P', 'r', 'i', 'n', 't', 'e', 'r', ' ', 'G', 'a', 'd', 'g', 'e', 't', '\000'}; [L3936] static dev_t g_printer_devno ; [L3937] static struct class *usb_gadget_class ; [L3938] static struct printer_dev usb_printer_gadget ; [L3939] static ushort idVendor ; [L3940] static ushort idProduct ; [L3941] static ushort bcdDevice ; [L3942] static char *iManufacturer ; [L3943] static char *iProduct ; [L3944] static char *iSerialNum ; [L3945] static char *iPNPstring ; [L3946] static unsigned int qlen = 10U; [L3947-L3949] static struct usb_device_descriptor device_desc = {18U, 1U, 512U, 0U, 0U, 0U, (unsigned char)0, 1317U, 42152U, (unsigned short)0, 1U, 2U, 3U, 1U}; [L3950] static struct usb_otg_descriptor otg_desc = {3U, 9U, 1U}; [L3951-L3952] static struct usb_config_descriptor config_desc = {9U, 2U, (unsigned short)0, 1U, 1U, 0U, 192U, 1U}; [L3953-L3954] static struct usb_interface_descriptor intf_desc = {9U, 4U, 0U, (unsigned char)0, 2U, 7U, 1U, 2U, 0U}; [L3955-L3956] static struct usb_endpoint_descriptor fs_ep_in_desc = {7U, 5U, 128U, 2U, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3957-L3958] static struct usb_endpoint_descriptor fs_ep_out_desc = {7U, 5U, 0U, 2U, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3959-L3960] static struct usb_descriptor_header const *fs_printer_function[11U] = { (struct usb_descriptor_header const *)(& otg_desc), (struct usb_descriptor_header const *)(& intf_desc), (struct usb_descriptor_header const *)(& fs_ep_in_desc), (struct usb_descriptor_header const *)(& fs_ep_out_desc), (struct usb_descriptor_header const *)0}; [L3961-L3962] static struct usb_endpoint_descriptor hs_ep_in_desc = {7U, 5U, (unsigned char)0, 2U, 512U, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3963-L3964] static struct usb_endpoint_descriptor hs_ep_out_desc = {7U, 5U, (unsigned char)0, 2U, 512U, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3965-L3966] static struct usb_qualifier_descriptor dev_qualifier = {10U, 6U, 512U, 7U, (unsigned char)0, (unsigned char)0, (unsigned char)0, 1U, (unsigned char)0}; [L3967-L3968] static struct usb_descriptor_header const *hs_printer_function[11U] = { (struct usb_descriptor_header const *)(& otg_desc), (struct usb_descriptor_header const *)(& intf_desc), (struct usb_descriptor_header const *)(& hs_ep_in_desc), (struct usb_descriptor_header const *)(& hs_ep_out_desc), (struct usb_descriptor_header const *)0}; [L3969] static char manufacturer[50U] ; [L3970-L3974] static char product_desc[40U] = { 'P', 'r', 'i', 'n', 't', 'e', 'r', ' ', 'G', 'a', 'd', 'g', 'e', 't', '\000'}; [L3975] static char serial_num[40U] = { '1', '\000'}; [L3976-L3987] static char pnp_string[1024U] = { 'X', 'X', 'M', 'F', 'G', ':', 'l', 'i', 'n', 'u', 'x', ';', 'M', 'D', 'L', ':', 'g', '_', 'p', 'r', 'i', 'n', 't', 'e', 'r', ';', 'C', 'L', 'S', ':', 'P', 'R', 'I', 'N', 'T', 'E', 'R', ';', 'S', 'N', ':', '1', ';', '\000'}; [L3988-L3990] static struct usb_string strings[4U] = { {1U, (char const *)(& manufacturer)}, {2U, (char const *)(& product_desc)}, {3U, (char const *)(& serial_num)}}; [L3991] static struct usb_gadget_strings stringtab = {1033U, (struct usb_string *)(& strings)}; [L4632-L4635] static struct file_operations const printer_io_operations = {& __this_module, 0, & printer_read, & printer_write, 0, 0, 0, & printer_poll, & printer_ioctl, 0, 0, & printer_open, 0, & printer_close, & printer_fsync, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L5410-L5413] static struct usb_gadget_driver printer_driver = {(char *)(& driver_desc), 3, & printer_bind, & printer_unbind, & printer_setup, & printer_disconnect, 0, 0, {(char const *)(& shortname), 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}}; [L5465] int ldv_retval_0 ; [L5466] int ldv_retval_1 ; [L5469] int ldv_retval_3 ; [L5470] int ldv_retval_2 ; [L5894] int ldv_usb_gadget_class = 0; [L5895] int ldv_usb_gadget_chrdev = 0; [L5896] int ldv_usb_gadget = 0; VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5494] struct usb_ctrlrequest *ldvarg0 ; [L5495] void *tmp ; [L5496] char *ldvarg7 ; [L5497] void *tmp___0 ; [L5498] struct poll_table_struct *ldvarg3 ; [L5499] void *tmp___1 ; [L5500] loff_t *ldvarg5 ; [L5501] void *tmp___2 ; [L5502] size_t ldvarg6 ; [L5503] size_t tmp___3 ; [L5504] unsigned long ldvarg1 ; [L5505] unsigned long tmp___4 ; [L5506] loff_t *ldvarg8 ; [L5507] void *tmp___5 ; [L5508] int ldvarg4 ; [L5509] int tmp___6 ; [L5510] char *ldvarg10 ; [L5511] void *tmp___7 ; [L5512] size_t ldvarg9 ; [L5513] size_t tmp___8 ; [L5514] unsigned int ldvarg2 ; [L5515] unsigned int tmp___9 ; [L5516] int tmp___10 ; [L5517] int tmp___11 ; [L5518] int tmp___12 ; [L5519] int tmp___13 ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5521] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=8, strings={121:0}, stringtab={122:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5521] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(8UL)={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5521] tmp = ldv_zalloc(8UL) [L5522] ldvarg0 = (struct usb_ctrlrequest *)tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5523] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=1, strings={121:0}, stringtab={122:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5523] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5523] tmp___0 = ldv_zalloc(1UL) [L5524] ldvarg7 = (char *)tmp___0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5525] CALL, EXPR ldv_zalloc(16UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=16, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=16, strings={121:0}, stringtab={122:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5525] RET, EXPR ldv_zalloc(16UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(16UL)={0:0}, ldvarg0={0:0}, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5525] tmp___1 = ldv_zalloc(16UL) [L5526] ldvarg3 = (struct poll_table_struct *)tmp___1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg3={0:0}, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5527] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=8, strings={121:0}, stringtab={122:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5527] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg3={0:0}, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5527] tmp___2 = ldv_zalloc(8UL) [L5528] ldvarg5 = (loff_t *)tmp___2 [L5529] tmp___3 = __VERIFIER_nondet_size_t() [L5530] ldvarg6 = tmp___3 [L5531] tmp___4 = __VERIFIER_nondet_ulong() [L5532] ldvarg1 = tmp___4 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=137, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=137, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5533] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=8, strings={121:0}, stringtab={122:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5533] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg1=137, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=137, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5533] tmp___5 = ldv_zalloc(8UL) [L5534] ldvarg8 = (loff_t *)tmp___5 [L5535] tmp___6 = __VERIFIER_nondet_int() [L5536] ldvarg4 = tmp___6 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=137, ldvarg3={0:0}, ldvarg4=8, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=8, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5537] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=1, strings={121:0}, stringtab={122:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5537] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1=137, ldvarg3={0:0}, ldvarg4=8, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=8, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5537] tmp___7 = ldv_zalloc(1UL) [L5538] ldvarg10 = (char *)tmp___7 [L5539] tmp___8 = __VERIFIER_nondet_size_t() [L5540] ldvarg9 = tmp___8 [L5541] tmp___9 = __VERIFIER_nondet_uint() [L5542] ldvarg2 = tmp___9 [L5543] FCALL ldv_initialize() [L5544] ldv_state_variable_1 = 0 [L5545] ref_cnt = 0 [L5546] ldv_state_variable_0 = 1 [L5547] ldv_state_variable_2 = 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=7, ldvarg3={0:0}, ldvarg4=8, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=8, tmp___7={0:0}, tmp___8=0, tmp___9=7, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=7, ldvarg3={0:0}, ldvarg4=8, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=8, tmp___7={0:0}, tmp___8=0, tmp___9=7, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: [L5610] case 1: VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=7, ldvarg3={0:0}, ldvarg4=8, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=8, tmp___7={0:0}, tmp___8=0, tmp___9=7, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5611] COND TRUE ldv_state_variable_0 == 1 [L5612] CALL, EXPR init() [L5416] int status ; [L5417] void *tmp ; [L5418] long tmp___0 ; [L5419] long tmp___1 ; [L5421] CALL, EXPR ldv_create_class() [L5899] void *is_got ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5901] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [\old(size)=120, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3184] void *p ; [L3185] void *tmp ; [L3186] int tmp___0 ; [L3188] tmp___0 = __VERIFIER_nondet_int() [L3189] COND TRUE tmp___0 != 0 [L3190] return ((void *)0); VAL [\old(size)=120, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=120, strings={121:0}, stringtab={122:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5901] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct class))={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5901] is_got = ldv_malloc(sizeof(struct class)) [L5902] COND TRUE (unsigned long )is_got <= 2012UL VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5903] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5907] COND TRUE ldv_usb_gadget_class == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5911] ldv_usb_gadget_class = 1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5914] return (is_got); VAL [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5421] RET, EXPR ldv_create_class() [L5421] tmp = ldv_create_class() [L5422] usb_gadget_class = (struct class *)tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5423] CALL, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5736] long tmp ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5738] CALL, EXPR ldv_is_err(ptr) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5861] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5738] RET, EXPR ldv_is_err(ptr) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5738] tmp = ldv_is_err(ptr) [L5739] return (tmp); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5423] RET, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, IS_ERR((void const *)usb_gadget_class)=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5423] tmp___1 = IS_ERR((void const *)usb_gadget_class) [L5424] COND FALSE !(tmp___1 != 0L) [L5432] CALL, EXPR ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5762] ldv_func_ret_type ldv_func_res ; [L5763] int tmp ; [L5764] int tmp___0 ; [L5766] CALL, EXPR alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L6074] return __VERIFIER_nondet_int(); [L5766] RET, EXPR alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L5766] tmp = alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L5767] ldv_func_res = tmp [L5768] CALL, EXPR ldv_register_chrdev_region() [L5954] int is_reg ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5956] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5846] int ret ; [L5847] int tmp ; [L5849] CALL, EXPR ldv_undef_int() [L3220] int tmp ; [L3222] tmp = __VERIFIER_nondet_int() [L3223] return (tmp); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, ret=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5851] COND TRUE ret <= 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, ret=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5855] return (ret); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, ret=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5956] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_undef_int_nonpositive()=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5956] is_reg = ldv_undef_int_nonpositive() [L5957] COND TRUE ! is_reg VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5958] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5962] COND TRUE ldv_usb_gadget_chrdev == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5966] ldv_usb_gadget_chrdev = 1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5969] return (is_reg); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5768] RET, EXPR ldv_register_chrdev_region() [L5768] tmp___0 = ldv_register_chrdev_region() [L5769] return (tmp___0); VAL [\old(ldv_func_arg2)=0, \old(ldv_func_arg3)=1, \result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={104:0}, ldv_func_arg1={104:0}, ldv_func_arg2=0, ldv_func_arg3=1, ldv_func_arg4={94:0}, ldv_func_arg4={94:0}, ldv_func_res=137, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=137, tmp___0=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5432] RET, EXPR ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5432] status = ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5433] COND FALSE !(status != 0) [L5439] CALL, EXPR ldv_usb_gadget_register_driver_9(& printer_driver) [L5783] ldv_func_ret_type___0 ldv_func_res ; [L5784] int tmp ; [L5785] int tmp___0 ; [L5787] CALL, EXPR usb_gadget_register_driver(ldv_func_arg1) [L6157] return __VERIFIER_nondet_int(); [L5787] RET, EXPR usb_gadget_register_driver(ldv_func_arg1) [L5787] tmp = usb_gadget_register_driver(ldv_func_arg1) [L5788] ldv_func_res = tmp [L5789] CALL, EXPR ldv_register_usb_gadget() [L5989] int is_reg ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5991] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5846] int ret ; [L5847] int tmp ; [L5849] CALL, EXPR ldv_undef_int() [L3220] int tmp ; [L3222] tmp = __VERIFIER_nondet_int() [L3223] return (tmp); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, ret=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5851] COND TRUE ret <= 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, ret=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5855] return (ret); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, ret=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5991] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_undef_int_nonpositive()=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5991] is_reg = ldv_undef_int_nonpositive() [L5992] COND TRUE ! is_reg VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5993] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5997] ldv_usb_gadget = 1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L6000] return (is_reg); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5789] RET, EXPR ldv_register_usb_gadget() [L5789] tmp___0 = ldv_register_usb_gadget() [L5790] return (tmp___0); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={124:0}, ldv_func_arg1={124:0}, ldv_func_res=138, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp=138, tmp___0=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5439] RET, EXPR ldv_usb_gadget_register_driver_9(& printer_driver) [L5439] status = ldv_usb_gadget_register_driver_9(& printer_driver) [L5440] COND FALSE !(status != 0) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, status=0, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5446] return (status); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, status=0, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5612] RET, EXPR init() [L5612] ldv_retval_2 = init() [L5613] COND FALSE !(ldv_retval_2 != 0) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=7, ldvarg3={0:0}, ldvarg4=8, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=8, tmp___7={0:0}, tmp___8=0, tmp___9=7, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5618] COND TRUE ldv_retval_2 == 0 [L5619] ldv_state_variable_0 = 2 [L5620] ldv_state_variable_1 = 1 [L5621] CALL ldv_initialize_usb_gadget_driver_1() [L5473] void *tmp ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5475] CALL, EXPR ldv_zalloc(1072UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1072, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, size=1072, strings={121:0}, stringtab={122:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5475] RET, EXPR ldv_zalloc(1072UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldv_zalloc(1072UL)={0:0}, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5475] tmp = ldv_zalloc(1072UL) [L5476] printer_driver_group0 = (struct usb_gadget *)tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5621] RET ldv_initialize_usb_gadget_driver_1() [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=7, ldvarg3={0:0}, ldvarg4=8, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=8, tmp___7={0:0}, tmp___8=0, tmp___9=7, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=7, ldvarg3={0:0}, ldvarg4=8, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=0, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=8, tmp___7={0:0}, tmp___8=0, tmp___9=7, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5603] COND TRUE ldv_state_variable_0 == 2 && ref_cnt == 0 [L5604] CALL cleanup() [L5451] int status ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5453] FCALL mutex_lock_nested(& usb_printer_gadget.lock_printer_io, 0U) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5454] CALL ldv_class_destroy_12(usb_gadget_class) [L5813] FCALL class_destroy(ldv_func_arg1) VAL [__this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={0:0}, ldv_func_arg1={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5814] CALL ldv_unregister_class() VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5940] COND FALSE !(ldv_usb_gadget == 0) VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L5942] CALL ldv_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] [L3238] reach_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={108:0}, dev_qualifier={115:0}, device_desc={106:0}, driver_desc={103:0}, epnum=0, fs_ep_in_desc={110:0}, fs_ep_out_desc={111:0}, fs_printer_function={112:0}, g_printer_devno={104:0}, hs_ep_in_desc={113:0}, hs_ep_out_desc={114:0}, hs_printer_function={116:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={109:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={117:0}, otg_desc={107:0}, pnp_string={120:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={123:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={101:0}, product_desc={118:0}, qlen=10, ref_cnt=0, serial_num={119:0}, shortname={102:0}, strings={121:0}, stringtab={122:0}, usb_gadget_class={0:0}, usb_printer_gadget={105:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 67 procedures, 1266 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 354.7s, OverallIterations: 17, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 254.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 23535 SdHoareTripleChecker+Valid, 206.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23196 mSDsluCounter, 173120 SdHoareTripleChecker+Invalid, 196.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 135852 mSDsCounter, 2059 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5853 IncrementalHoareTripleChecker+Invalid, 7922 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2059 mSolverCounterUnsat, 37268 mSDtfsCounter, 5853 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1559 GetRequests, 1435 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 62.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30774occurred in iteration=6, InterpolantAutomatonStates: 125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 19816 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 18.5s SatisfiabilityAnalysisTime, 50.5s InterpolantComputationTime, 1636 NumberOfCodeBlocks, 1636 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1488 ConstructedInterpolants, 0 QuantifiedInterpolants, 2796 SizeOfPredicates, 70 NumberOfNonLiveVariables, 22361 ConjunctsInSsa, 137 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 1081/1081 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 04:15:42,691 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-03 04:15:42,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f68d5754-8d48-4919-a9cf-bcb783a489fc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample