./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 4e7fbc69 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_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/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_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 15:23:32,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:23:32,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:23:32,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:23:32,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:23:32,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:23:32,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:23:32,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:23:32,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:23:32,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:23:32,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:23:32,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:23:32,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:23:32,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:23:32,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:23:32,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:23:32,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:23:32,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:23:32,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:23:32,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:23:32,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:23:32,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:23:32,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:23:32,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:23:32,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:23:32,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:23:32,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:23:32,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:23:32,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:23:32,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:23:32,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:23:32,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:23:32,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:23:32,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:23:32,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:23:32,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:23:32,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:23:32,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:23:32,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:23:32,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:23:32,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:23:32,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:23:32,773 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:23:32,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:23:32,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:23:32,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:23:32,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:23:32,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:23:32,775 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:23:32,775 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:23:32,775 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:23:32,775 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:23:32,776 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:23:32,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:23:32,777 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:23:32,777 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:23:32,777 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:23:32,777 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:23:32,778 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:23:32,778 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:23:32,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:23:32,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:23:32,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:23:32,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:23:32,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:23:32,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:23:32,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:23:32,780 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:23:32,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:23:32,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:23:32,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:23:32,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:23:32,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:23:32,782 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:23:32,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:23:32,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:23:32,783 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:23:32,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:23:32,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:23:32,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:23:32,784 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_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2022-11-23 15:23:33,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:23:33,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:23:33,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:23:33,084 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:23:33,084 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:23:33,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-23 15:23:36,084 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:23:36,575 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:23:36,576 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-23 15:23:36,611 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/data/4a6598b43/6db273b0030c4262929c35d19b028ca3/FLAG00687c2f8 [2022-11-23 15:23:36,626 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/data/4a6598b43/6db273b0030c4262929c35d19b028ca3 [2022-11-23 15:23:36,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:23:36,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:23:36,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:23:36,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:23:36,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:23:36,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53fd333e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36, skipping insertion in model container [2022-11-23 15:23:36,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:23:36,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:23:37,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/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] [2022-11-23 15:23:38,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:23:38,220 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:23:38,311 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/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] [2022-11-23 15:23:38,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:23:38,565 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:23:38,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38 WrapperNode [2022-11-23 15:23:38,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:23:38,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:23:38,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:23:38,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:23:38,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:38,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:38,773 INFO L138 Inliner]: procedures = 203, calls = 1279, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 3473 [2022-11-23 15:23:38,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:23:38,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:23:38,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:23:38,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:23:38,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:38,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:38,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:38,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:38,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:38,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:38,940 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:38,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:38,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:23:38,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:23:38,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:23:38,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:23:38,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (1/1) ... [2022-11-23 15:23:39,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:23:39,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:39,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:23:39,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:23:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-11-23 15:23:39,086 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-11-23 15:23:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-23 15:23:39,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-23 15:23:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:23:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:23:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:23:39,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:23:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-11-23 15:23:39,092 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-11-23 15:23:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-11-23 15:23:39,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-11-23 15:23:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-11-23 15:23:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-11-23 15:23:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 15:23:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 15:23:39,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:23:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:23:39,094 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-11-23 15:23:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-11-23 15:23:39,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-11-23 15:23:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-11-23 15:23:39,095 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-23 15:23:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-23 15:23:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-11-23 15:23:39,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-11-23 15:23:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:23:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:23:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:23:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:23:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-11-23 15:23:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-11-23 15:23:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:23:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:23:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 15:23:39,100 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 15:23:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-23 15:23:39,101 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-23 15:23:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-11-23 15:23:39,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-11-23 15:23:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:23:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:23:39,101 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:23:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:23:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-11-23 15:23:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-11-23 15:23:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-11-23 15:23:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-11-23 15:23:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:23:39,103 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:23:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:23:39,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:23:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-23 15:23:39,106 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-23 15:23:39,106 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:23:39,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:23:39,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:23:39,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:23:39,107 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-11-23 15:23:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-11-23 15:23:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-23 15:23:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-23 15:23:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 15:23:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 15:23:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-23 15:23:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-23 15:23:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:23:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:23:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-23 15:23:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-23 15:23:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-11-23 15:23:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-11-23 15:23:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 15:23:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 15:23:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-23 15:23:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-23 15:23:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:23:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:23:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:23:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 15:23:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 15:23:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-23 15:23:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-23 15:23:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 15:23:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 15:23:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:23:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:23:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-11-23 15:23:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-11-23 15:23:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:23:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:23:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-11-23 15:23:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-11-23 15:23:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-23 15:23:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-23 15:23:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:23:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-11-23 15:23:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-11-23 15:23:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-11-23 15:23:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-11-23 15:23:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-11-23 15:23:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-11-23 15:23:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:23:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:23:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-11-23 15:23:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-11-23 15:23:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:23:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-23 15:23:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-11-23 15:23:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-11-23 15:23:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-11-23 15:23:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-11-23 15:23:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-11-23 15:23:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-23 15:23:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-23 15:23:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:23:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:23:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:23:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-11-23 15:23:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-11-23 15:23:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-11-23 15:23:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-11-23 15:23:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-23 15:23:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-23 15:23:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 15:23:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 15:23:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-23 15:23:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-23 15:23:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-11-23 15:23:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-11-23 15:23:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-23 15:23:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-23 15:23:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:23:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:23:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-11-23 15:23:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-11-23 15:23:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-11-23 15:23:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-11-23 15:23:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:23:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:23:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-11-23 15:23:39,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-11-23 15:23:39,171 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-23 15:23:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-23 15:23:39,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-11-23 15:23:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-11-23 15:23:39,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:23:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-23 15:23:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-23 15:23:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:23:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:23:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 15:23:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 15:23:39,865 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:23:39,869 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:23:40,098 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:23:58,356 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:23:59,360 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:23:59,361 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:23:59,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:59 BoogieIcfgContainer [2022-11-23 15:23:59,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:23:59,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:23:59,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:23:59,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:23:59,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:23:36" (1/3) ... [2022-11-23 15:23:59,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae0594c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:59, skipping insertion in model container [2022-11-23 15:23:59,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:38" (2/3) ... [2022-11-23 15:23:59,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae0594c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:59, skipping insertion in model container [2022-11-23 15:23:59,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:59" (3/3) ... [2022-11-23 15:23:59,380 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-23 15:23:59,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:23:59,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:23:59,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:23:59,493 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;@b7bad29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:23:59,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:23:59,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 993 states, 602 states have (on average 1.3820598006644518) internal successors, (832), 645 states have internal predecessors, (832), 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) [2022-11-23 15:23:59,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-23 15:23:59,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:59,528 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] [2022-11-23 15:23:59,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:23:59,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:59,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1546438050, now seen corresponding path program 1 times [2022-11-23 15:23:59,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:59,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561651054] [2022-11-23 15:23:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:59,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:24:00,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:00,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561651054] [2022-11-23 15:24:00,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561651054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:24:00,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:24:00,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:24:00,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397405953] [2022-11-23 15:24:00,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:24:00,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:24:00,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:00,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:24:00,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:24:00,662 INFO L87 Difference]: Start difference. First operand has 993 states, 602 states have (on average 1.3820598006644518) internal successors, (832), 645 states have internal predecessors, (832), 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) [2022-11-23 15:24:02,739 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 [] [2022-11-23 15:24:04,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:04,175 INFO L93 Difference]: Finished difference Result 2834 states and 4260 transitions. [2022-11-23 15:24:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:24:04,179 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 [2022-11-23 15:24:04,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:04,217 INFO L225 Difference]: With dead ends: 2834 [2022-11-23 15:24:04,218 INFO L226 Difference]: Without dead ends: 1841 [2022-11-23 15:24:04,230 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 [2022-11-23 15:24:04,235 INFO L413 NwaCegarLoop]: 1572 mSDtfsCounter, 1363 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:04,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 2784 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-23 15:24:04,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2022-11-23 15:24:04,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1835. [2022-11-23 15:24:04,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1117 states have (on average 1.367949865711728) internal successors, (1528), 1177 states have internal predecessors, (1528), 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) [2022-11-23 15:24:04,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2699 transitions. [2022-11-23 15:24:04,448 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2699 transitions. Word has length 54 [2022-11-23 15:24:04,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:04,449 INFO L495 AbstractCegarLoop]: Abstraction has 1835 states and 2699 transitions. [2022-11-23 15:24:04,449 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) [2022-11-23 15:24:04,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2699 transitions. [2022-11-23 15:24:04,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-23 15:24:04,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:04,453 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] [2022-11-23 15:24:04,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:24:04,454 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:04,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:04,454 INFO L85 PathProgramCache]: Analyzing trace with hash 689178617, now seen corresponding path program 1 times [2022-11-23 15:24:04,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:04,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007550324] [2022-11-23 15:24:04,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:04,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:04,870 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:24:04,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:04,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007550324] [2022-11-23 15:24:04,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007550324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:24:04,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:24:04,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:24:04,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051834416] [2022-11-23 15:24:04,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:24:04,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:24:04,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:04,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:24:04,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:24:04,881 INFO L87 Difference]: Start difference. First operand 1835 states and 2699 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) [2022-11-23 15:24:06,925 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 [] [2022-11-23 15:24:08,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:08,230 INFO L93 Difference]: Finished difference Result 3625 states and 5339 transitions. [2022-11-23 15:24:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:24:08,231 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 [2022-11-23 15:24:08,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:08,256 INFO L225 Difference]: With dead ends: 3625 [2022-11-23 15:24:08,256 INFO L226 Difference]: Without dead ends: 3605 [2022-11-23 15:24:08,259 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 [2022-11-23 15:24:08,260 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 1375 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:08,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 2759 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 292 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-23 15:24:08,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2022-11-23 15:24:08,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3601. [2022-11-23 15:24:08,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2198 states have (on average 1.3657870791628755) internal successors, (3002), 2306 states have internal predecessors, (3002), 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) [2022-11-23 15:24:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5306 transitions. [2022-11-23 15:24:08,483 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5306 transitions. Word has length 54 [2022-11-23 15:24:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:08,484 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5306 transitions. [2022-11-23 15:24:08,484 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) [2022-11-23 15:24:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5306 transitions. [2022-11-23 15:24:08,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-23 15:24:08,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:08,490 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] [2022-11-23 15:24:08,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:24:08,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:08,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:08,501 INFO L85 PathProgramCache]: Analyzing trace with hash -111281325, now seen corresponding path program 1 times [2022-11-23 15:24:08,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:08,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232768511] [2022-11-23 15:24:08,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:08,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:08,932 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:24:08,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:08,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232768511] [2022-11-23 15:24:08,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232768511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:24:08,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:24:08,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:24:08,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010225737] [2022-11-23 15:24:08,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:24:08,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:24:08,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:08,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:24:08,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:24:08,935 INFO L87 Difference]: Start difference. First operand 3601 states and 5306 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) [2022-11-23 15:24:10,983 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 [] [2022-11-23 15:24:12,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:12,470 INFO L93 Difference]: Finished difference Result 10741 states and 15843 transitions. [2022-11-23 15:24:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:24:12,471 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 [2022-11-23 15:24:12,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:12,523 INFO L225 Difference]: With dead ends: 10741 [2022-11-23 15:24:12,524 INFO L226 Difference]: Without dead ends: 7153 [2022-11-23 15:24:12,541 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 [2022-11-23 15:24:12,542 INFO L413 NwaCegarLoop]: 1658 mSDtfsCounter, 1374 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:12,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 2871 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 309 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-23 15:24:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7153 states. [2022-11-23 15:24:13,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7153 to 7142. [2022-11-23 15:24:13,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7142 states, 4365 states have (on average 1.3663230240549828) internal successors, (5964), 4573 states have internal predecessors, (5964), 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) [2022-11-23 15:24:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7142 states to 7142 states and 10534 transitions. [2022-11-23 15:24:13,090 INFO L78 Accepts]: Start accepts. Automaton has 7142 states and 10534 transitions. Word has length 55 [2022-11-23 15:24:13,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:13,092 INFO L495 AbstractCegarLoop]: Abstraction has 7142 states and 10534 transitions. [2022-11-23 15:24:13,092 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) [2022-11-23 15:24:13,092 INFO L276 IsEmpty]: Start isEmpty. Operand 7142 states and 10534 transitions. [2022-11-23 15:24:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-23 15:24:13,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:13,096 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] [2022-11-23 15:24:13,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:24:13,097 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:13,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1304455725, now seen corresponding path program 1 times [2022-11-23 15:24:13,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:13,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704761182] [2022-11-23 15:24:13,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:13,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:13,486 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:24:13,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:13,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704761182] [2022-11-23 15:24:13,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704761182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:24:13,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:24:13,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:24:13,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192798999] [2022-11-23 15:24:13,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:24:13,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:24:13,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:13,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:24:13,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:24:13,489 INFO L87 Difference]: Start difference. First operand 7142 states and 10534 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) [2022-11-23 15:24:15,528 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 [] [2022-11-23 15:24:17,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:17,191 INFO L93 Difference]: Finished difference Result 21386 states and 31552 transitions. [2022-11-23 15:24:17,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:24:17,192 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 [2022-11-23 15:24:17,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:17,312 INFO L225 Difference]: With dead ends: 21386 [2022-11-23 15:24:17,313 INFO L226 Difference]: Without dead ends: 14254 [2022-11-23 15:24:17,353 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 [2022-11-23 15:24:17,357 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 1367 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:17,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 2806 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-23 15:24:17,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14254 states. [2022-11-23 15:24:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14254 to 14217. [2022-11-23 15:24:18,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14217 states, 8700 states have (on average 1.3666666666666667) internal successors, (11890), 9104 states have internal predecessors, (11890), 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) [2022-11-23 15:24:18,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14217 states to 14217 states and 20986 transitions. [2022-11-23 15:24:18,342 INFO L78 Accepts]: Start accepts. Automaton has 14217 states and 20986 transitions. Word has length 68 [2022-11-23 15:24:18,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:18,344 INFO L495 AbstractCegarLoop]: Abstraction has 14217 states and 20986 transitions. [2022-11-23 15:24:18,346 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) [2022-11-23 15:24:18,346 INFO L276 IsEmpty]: Start isEmpty. Operand 14217 states and 20986 transitions. [2022-11-23 15:24:18,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 15:24:18,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:18,349 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] [2022-11-23 15:24:18,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:24:18,350 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:18,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:18,350 INFO L85 PathProgramCache]: Analyzing trace with hash 451327553, now seen corresponding path program 1 times [2022-11-23 15:24:18,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:18,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397003022] [2022-11-23 15:24:18,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:18,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:20,872 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:24:20,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:20,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397003022] [2022-11-23 15:24:20,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397003022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:24:20,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:24:20,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 15:24:20,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173198076] [2022-11-23 15:24:20,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:24:20,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 15:24:20,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:20,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 15:24:20,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:24:20,874 INFO L87 Difference]: Start difference. First operand 14217 states and 20986 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) [2022-11-23 15:24:22,919 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 [] [2022-11-23 15:24:33,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:33,201 INFO L93 Difference]: Finished difference Result 41741 states and 62034 transitions. [2022-11-23 15:24:33,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 15:24:33,202 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 [2022-11-23 15:24:33,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:33,410 INFO L225 Difference]: With dead ends: 41741 [2022-11-23 15:24:33,411 INFO L226 Difference]: Without dead ends: 27537 [2022-11-23 15:24:33,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2022-11-23 15:24:33,491 INFO L413 NwaCegarLoop]: 2347 mSDtfsCounter, 1891 mSDsluCounter, 22372 mSDsCounter, 0 mSdLazyCounter, 3481 mSolverCounterSat, 216 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 24719 SdHoareTripleChecker+Invalid, 3698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 3481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:33,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 24719 Invalid, 3698 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [216 Valid, 3481 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-23 15:24:33,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27537 states. [2022-11-23 15:24:34,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27537 to 24755. [2022-11-23 15:24:34,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24755 states, 15144 states have (on average 1.3661516111991547) internal successors, (20689), 15855 states have internal predecessors, (20689), 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) [2022-11-23 15:24:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24755 states to 24755 states and 36575 transitions. [2022-11-23 15:24:35,113 INFO L78 Accepts]: Start accepts. Automaton has 24755 states and 36575 transitions. Word has length 70 [2022-11-23 15:24:35,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:35,114 INFO L495 AbstractCegarLoop]: Abstraction has 24755 states and 36575 transitions. [2022-11-23 15:24:35,114 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) [2022-11-23 15:24:35,114 INFO L276 IsEmpty]: Start isEmpty. Operand 24755 states and 36575 transitions. [2022-11-23 15:24:35,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-23 15:24:35,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:35,117 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] [2022-11-23 15:24:35,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:24:35,117 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:35,118 INFO L85 PathProgramCache]: Analyzing trace with hash 982832870, now seen corresponding path program 1 times [2022-11-23 15:24:35,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:35,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346835005] [2022-11-23 15:24:35,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:35,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:35,657 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:24:35,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:35,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346835005] [2022-11-23 15:24:35,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346835005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:24:35,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:24:35,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:24:35,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305461463] [2022-11-23 15:24:35,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:24:35,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:24:35,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:35,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:24:35,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:24:35,661 INFO L87 Difference]: Start difference. First operand 24755 states and 36575 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) [2022-11-23 15:24:37,700 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 [] [2022-11-23 15:24:39,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:39,827 INFO L93 Difference]: Finished difference Result 49504 states and 73137 transitions. [2022-11-23 15:24:39,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:24:39,827 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 [2022-11-23 15:24:39,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:39,986 INFO L225 Difference]: With dead ends: 49504 [2022-11-23 15:24:39,986 INFO L226 Difference]: Without dead ends: 24762 [2022-11-23 15:24:40,084 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 [2022-11-23 15:24:40,085 INFO L413 NwaCegarLoop]: 2433 mSDtfsCounter, 1340 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:40,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 3687 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 418 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-23 15:24:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24762 states. [2022-11-23 15:24:41,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24762 to 24736. [2022-11-23 15:24:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24736 states, 15125 states have (on average 1.3655537190082645) internal successors, (20654), 15838 states have internal predecessors, (20654), 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) [2022-11-23 15:24:42,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24736 states to 24736 states and 36540 transitions. [2022-11-23 15:24:42,040 INFO L78 Accepts]: Start accepts. Automaton has 24736 states and 36540 transitions. Word has length 80 [2022-11-23 15:24:42,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:42,041 INFO L495 AbstractCegarLoop]: Abstraction has 24736 states and 36540 transitions. [2022-11-23 15:24:42,041 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) [2022-11-23 15:24:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 24736 states and 36540 transitions. [2022-11-23 15:24:42,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-23 15:24:42,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:42,045 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] [2022-11-23 15:24:42,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:24:42,045 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:42,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:42,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1041359215, now seen corresponding path program 1 times [2022-11-23 15:24:42,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:42,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204078852] [2022-11-23 15:24:42,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:42,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:47,685 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-23 15:24:47,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:47,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204078852] [2022-11-23 15:24:47,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204078852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:24:47,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:24:47,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:24:47,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261075723] [2022-11-23 15:24:47,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:24:47,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 15:24:47,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:47,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 15:24:47,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:24:47,688 INFO L87 Difference]: Start difference. First operand 24736 states and 36540 transitions. Second operand has 14 states, 10 states have (on average 4.1) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-23 15:24:49,734 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 [] [2022-11-23 15:25:03,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:03,313 INFO L93 Difference]: Finished difference Result 62871 states and 93285 transitions. [2022-11-23 15:25:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 15:25:03,314 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 4.1) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 85 [2022-11-23 15:25:03,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:03,538 INFO L225 Difference]: With dead ends: 62871 [2022-11-23 15:25:03,538 INFO L226 Difference]: Without dead ends: 38148 [2022-11-23 15:25:03,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:25:03,790 INFO L413 NwaCegarLoop]: 2404 mSDtfsCounter, 2273 mSDsluCounter, 25623 mSDsCounter, 0 mSdLazyCounter, 4074 mSolverCounterSat, 421 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 28027 SdHoareTripleChecker+Invalid, 4496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 4074 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:03,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2339 Valid, 28027 Invalid, 4496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [421 Valid, 4074 Invalid, 1 Unknown, 0 Unchecked, 12.6s Time] [2022-11-23 15:25:03,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38148 states. [2022-11-23 15:25:05,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38148 to 24728. [2022-11-23 15:25:05,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24728 states, 15117 states have (on average 1.3656148706753986) internal successors, (20644), 15830 states have internal predecessors, (20644), 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) [2022-11-23 15:25:05,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24728 states to 24728 states and 36530 transitions. [2022-11-23 15:25:05,984 INFO L78 Accepts]: Start accepts. Automaton has 24728 states and 36530 transitions. Word has length 85 [2022-11-23 15:25:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:05,986 INFO L495 AbstractCegarLoop]: Abstraction has 24728 states and 36530 transitions. [2022-11-23 15:25:05,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 4.1) internal successors, (41), 11 states have internal predecessors, (41), 5 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-23 15:25:05,986 INFO L276 IsEmpty]: Start isEmpty. Operand 24728 states and 36530 transitions. [2022-11-23 15:25:05,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-23 15:25:05,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:05,996 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] [2022-11-23 15:25:05,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:25:05,996 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:25:05,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:05,997 INFO L85 PathProgramCache]: Analyzing trace with hash 762860183, now seen corresponding path program 1 times [2022-11-23 15:25:05,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:05,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142254317] [2022-11-23 15:25:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:05,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:09,748 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-23 15:25:09,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:09,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142254317] [2022-11-23 15:25:09,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142254317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:25:09,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:25:09,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:25:09,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937186399] [2022-11-23 15:25:09,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:25:09,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 15:25:09,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:09,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 15:25:09,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:25:09,751 INFO L87 Difference]: Start difference. First operand 24728 states and 36530 transitions. Second operand has 14 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-23 15:25:11,802 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 [] [2022-11-23 15:25:24,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:24,058 INFO L93 Difference]: Finished difference Result 46760 states and 69054 transitions. [2022-11-23 15:25:24,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:25:24,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 92 [2022-11-23 15:25:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:24,158 INFO L225 Difference]: With dead ends: 46760 [2022-11-23 15:25:24,158 INFO L226 Difference]: Without dead ends: 22045 [2022-11-23 15:25:24,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=106, Invalid=706, Unknown=0, NotChecked=0, Total=812 [2022-11-23 15:25:24,255 INFO L413 NwaCegarLoop]: 2631 mSDtfsCounter, 1798 mSDsluCounter, 27297 mSDsCounter, 0 mSdLazyCounter, 4221 mSolverCounterSat, 253 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 29928 SdHoareTripleChecker+Invalid, 4475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 4221 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:24,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 29928 Invalid, 4475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [253 Valid, 4221 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2022-11-23 15:25:24,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22045 states. [2022-11-23 15:25:26,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22045 to 21049. [2022-11-23 15:25:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21049 states, 12850 states have (on average 1.365058365758755) internal successors, (17541), 13456 states have internal predecessors, (17541), 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) [2022-11-23 15:25:26,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21049 states to 21049 states and 31103 transitions. [2022-11-23 15:25:26,128 INFO L78 Accepts]: Start accepts. Automaton has 21049 states and 31103 transitions. Word has length 92 [2022-11-23 15:25:26,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:26,129 INFO L495 AbstractCegarLoop]: Abstraction has 21049 states and 31103 transitions. [2022-11-23 15:25:26,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-23 15:25:26,129 INFO L276 IsEmpty]: Start isEmpty. Operand 21049 states and 31103 transitions. [2022-11-23 15:25:26,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-23 15:25:26,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:26,135 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] [2022-11-23 15:25:26,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:25:26,135 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:25:26,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:26,136 INFO L85 PathProgramCache]: Analyzing trace with hash -388413087, now seen corresponding path program 1 times [2022-11-23 15:25:26,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:26,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007279109] [2022-11-23 15:25:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:26,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:26,687 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-23 15:25:26,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:26,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007279109] [2022-11-23 15:25:26,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007279109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:25:26,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:25:26,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:25:26,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740045985] [2022-11-23 15:25:26,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:25:26,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:25:26,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:26,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:25:26,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:25:26,691 INFO L87 Difference]: Start difference. First operand 21049 states and 31103 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) [2022-11-23 15:25:28,734 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 [] [2022-11-23 15:25:31,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:31,313 INFO L93 Difference]: Finished difference Result 22616 states and 33614 transitions. [2022-11-23 15:25:31,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:25:31,314 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 [2022-11-23 15:25:31,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:31,365 INFO L225 Difference]: With dead ends: 22616 [2022-11-23 15:25:31,366 INFO L226 Difference]: Without dead ends: 15622 [2022-11-23 15:25:31,392 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 [2022-11-23 15:25:31,393 INFO L413 NwaCegarLoop]: 1858 mSDtfsCounter, 518 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 126 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 5010 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:31,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 5010 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-23 15:25:31,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2022-11-23 15:25:32,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 14100. [2022-11-23 15:25:32,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14100 states, 8607 states have (on average 1.3637736725920762) internal successors, (11738), 9014 states have internal predecessors, (11738), 4529 states have call successors, (4529), 960 states have call predecessors, (4529), 963 states have return successors, (4541), 4461 states have call predecessors, (4541), 4517 states have call successors, (4541) [2022-11-23 15:25:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14100 states to 14100 states and 20808 transitions. [2022-11-23 15:25:32,708 INFO L78 Accepts]: Start accepts. Automaton has 14100 states and 20808 transitions. Word has length 87 [2022-11-23 15:25:32,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:32,708 INFO L495 AbstractCegarLoop]: Abstraction has 14100 states and 20808 transitions. [2022-11-23 15:25:32,709 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) [2022-11-23 15:25:32,709 INFO L276 IsEmpty]: Start isEmpty. Operand 14100 states and 20808 transitions. [2022-11-23 15:25:32,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 15:25:32,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:32,718 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] [2022-11-23 15:25:32,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:25:32,718 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:25:32,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:32,719 INFO L85 PathProgramCache]: Analyzing trace with hash 202305923, now seen corresponding path program 1 times [2022-11-23 15:25:32,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:32,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386057379] [2022-11-23 15:25:32,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:32,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:33,158 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-23 15:25:33,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:33,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386057379] [2022-11-23 15:25:33,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386057379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:25:33,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:25:33,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:25:33,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487430321] [2022-11-23 15:25:33,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:25:33,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:25:33,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:33,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:25:33,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:25:33,160 INFO L87 Difference]: Start difference. First operand 14100 states and 20808 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) [2022-11-23 15:25:35,200 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 [] [2022-11-23 15:25:37,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:37,828 INFO L93 Difference]: Finished difference Result 28178 states and 41590 transitions. [2022-11-23 15:25:37,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:25:37,828 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 [2022-11-23 15:25:37,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:37,879 INFO L225 Difference]: With dead ends: 28178 [2022-11-23 15:25:37,879 INFO L226 Difference]: Without dead ends: 14108 [2022-11-23 15:25:37,911 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 [2022-11-23 15:25:37,911 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 513 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 119 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 4403 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:37,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 4403 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-23 15:25:37,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14108 states. [2022-11-23 15:25:38,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14108 to 14090. [2022-11-23 15:25:38,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14090 states, 8603 states have (on average 1.3634778565616645) internal successors, (11730), 9010 states have internal predecessors, (11730), 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) [2022-11-23 15:25:39,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14090 states to 14090 states and 20792 transitions. [2022-11-23 15:25:39,031 INFO L78 Accepts]: Start accepts. Automaton has 14090 states and 20792 transitions. Word has length 89 [2022-11-23 15:25:39,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:39,032 INFO L495 AbstractCegarLoop]: Abstraction has 14090 states and 20792 transitions. [2022-11-23 15:25:39,032 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) [2022-11-23 15:25:39,032 INFO L276 IsEmpty]: Start isEmpty. Operand 14090 states and 20792 transitions. [2022-11-23 15:25:39,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 15:25:39,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:39,037 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] [2022-11-23 15:25:39,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 15:25:39,037 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:25:39,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:39,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2122403110, now seen corresponding path program 1 times [2022-11-23 15:25:39,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:39,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365875122] [2022-11-23 15:25:39,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:39,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-23 15:25:39,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:39,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365875122] [2022-11-23 15:25:39,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365875122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:25:39,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:25:39,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:25:39,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347839196] [2022-11-23 15:25:39,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:25:39,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:25:39,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:39,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:25:39,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:25:39,859 INFO L87 Difference]: Start difference. First operand 14090 states and 20792 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) [2022-11-23 15:25:41,899 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 [] [2022-11-23 15:25:46,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:46,905 INFO L93 Difference]: Finished difference Result 22381 states and 32907 transitions. [2022-11-23 15:25:46,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 15:25:46,906 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 [2022-11-23 15:25:46,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:46,928 INFO L225 Difference]: With dead ends: 22381 [2022-11-23 15:25:46,928 INFO L226 Difference]: Without dead ends: 8321 [2022-11-23 15:25:46,952 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 [2022-11-23 15:25:46,953 INFO L413 NwaCegarLoop]: 2590 mSDtfsCounter, 2148 mSDsluCounter, 8799 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 251 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 11389 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:46,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 11389 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1531 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-23 15:25:46,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2022-11-23 15:25:47,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 8238. [2022-11-23 15:25:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8238 states, 5024 states have (on average 1.3552945859872612) internal successors, (6809), 5266 states have internal predecessors, (6809), 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) [2022-11-23 15:25:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8238 states to 8238 states and 12046 transitions. [2022-11-23 15:25:47,551 INFO L78 Accepts]: Start accepts. Automaton has 8238 states and 12046 transitions. Word has length 89 [2022-11-23 15:25:47,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:47,552 INFO L495 AbstractCegarLoop]: Abstraction has 8238 states and 12046 transitions. [2022-11-23 15:25:47,552 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) [2022-11-23 15:25:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 8238 states and 12046 transitions. [2022-11-23 15:25:47,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-23 15:25:47,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:47,556 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] [2022-11-23 15:25:47,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:25:47,556 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:25:47,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:47,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1608057726, now seen corresponding path program 1 times [2022-11-23 15:25:47,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:47,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879406087] [2022-11-23 15:25:47,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:47,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:25:48,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:48,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879406087] [2022-11-23 15:25:48,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879406087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:25:48,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:25:48,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:25:48,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082446562] [2022-11-23 15:25:48,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:25:48,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:25:48,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:48,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:25:48,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:25:48,422 INFO L87 Difference]: Start difference. First operand 8238 states and 12046 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) [2022-11-23 15:25:50,468 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 [] [2022-11-23 15:25:52,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:52,680 INFO L93 Difference]: Finished difference Result 14098 states and 20664 transitions. [2022-11-23 15:25:52,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:25:52,681 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 [2022-11-23 15:25:52,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:52,704 INFO L225 Difference]: With dead ends: 14098 [2022-11-23 15:25:52,705 INFO L226 Difference]: Without dead ends: 6798 [2022-11-23 15:25:52,722 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 [2022-11-23 15:25:52,722 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 677 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 4667 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:52,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 4667 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 15:25:52,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6798 states. [2022-11-23 15:25:53,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6798 to 6395. [2022-11-23 15:25:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6395 states, 3896 states have (on average 1.3552361396303902) internal successors, (5280), 4083 states have internal predecessors, (5280), 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) [2022-11-23 15:25:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 9351 transitions. [2022-11-23 15:25:53,268 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 9351 transitions. Word has length 91 [2022-11-23 15:25:53,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:53,268 INFO L495 AbstractCegarLoop]: Abstraction has 6395 states and 9351 transitions. [2022-11-23 15:25:53,268 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) [2022-11-23 15:25:53,268 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 9351 transitions. [2022-11-23 15:25:53,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-23 15:25:53,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:53,273 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] [2022-11-23 15:25:53,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 15:25:53,274 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:25:53,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:53,274 INFO L85 PathProgramCache]: Analyzing trace with hash -242302856, now seen corresponding path program 1 times [2022-11-23 15:25:53,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:53,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385535318] [2022-11-23 15:25:53,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:53,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-23 15:25:54,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:54,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385535318] [2022-11-23 15:25:54,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385535318] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:25:54,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200423575] [2022-11-23 15:25:54,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:54,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:25:54,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:25:54,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:25:54,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:25:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:55,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 2456 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 15:25:55,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:25:55,608 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:25:55,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:25:55,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200423575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:25:55,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:25:55,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-11-23 15:25:55,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512563841] [2022-11-23 15:25:55,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:25:55,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:25:55,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:55,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:25:55,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:25:55,610 INFO L87 Difference]: Start difference. First operand 6395 states and 9351 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) [2022-11-23 15:25:57,653 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 [] [2022-11-23 15:25:59,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:59,528 INFO L93 Difference]: Finished difference Result 6769 states and 9940 transitions. [2022-11-23 15:25:59,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:25:59,529 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 [2022-11-23 15:25:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:59,543 INFO L225 Difference]: With dead ends: 6769 [2022-11-23 15:25:59,543 INFO L226 Difference]: Without dead ends: 4932 [2022-11-23 15:25:59,549 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 [2022-11-23 15:25:59,549 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 647 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 117 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 4620 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:59,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 4620 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 15:25:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4932 states. [2022-11-23 15:25:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4932 to 4580. [2022-11-23 15:25:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 2791 states have (on average 1.353636689358653) internal successors, (3778), 2925 states have internal predecessors, (3778), 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) [2022-11-23 15:25:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 6689 transitions. [2022-11-23 15:25:59,915 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 6689 transitions. Word has length 97 [2022-11-23 15:25:59,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:59,916 INFO L495 AbstractCegarLoop]: Abstraction has 4580 states and 6689 transitions. [2022-11-23 15:25:59,916 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) [2022-11-23 15:25:59,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 6689 transitions. [2022-11-23 15:25:59,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-23 15:25:59,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:59,921 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] [2022-11-23 15:25:59,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:26:00,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 15:26:00,141 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:00,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:00,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1266721036, now seen corresponding path program 1 times [2022-11-23 15:26:00,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:00,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057126088] [2022-11-23 15:26:00,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:00,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-23 15:26:02,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:02,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057126088] [2022-11-23 15:26:02,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057126088] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:26:02,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455618076] [2022-11-23 15:26:02,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:02,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:26:02,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:26:02,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:26:02,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:26:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:10,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 2442 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-23 15:26:10,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:26:11,377 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-23 15:26:11,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:26:11,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455618076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:26:11,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:26:11,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [13] total 18 [2022-11-23 15:26:11,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76104065] [2022-11-23 15:26:11,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:26:11,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 15:26:11,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:11,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 15:26:11,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-23 15:26:11,380 INFO L87 Difference]: Start difference. First operand 4580 states and 6689 transitions. Second operand has 14 states, 9 states have (on average 6.0) internal successors, (54), 11 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) [2022-11-23 15:26:13,433 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 [] [2022-11-23 15:26:19,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:19,598 INFO L93 Difference]: Finished difference Result 6925 states and 10174 transitions. [2022-11-23 15:26:19,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 15:26:19,599 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 6.0) internal successors, (54), 11 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 [2022-11-23 15:26:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:19,609 INFO L225 Difference]: With dead ends: 6925 [2022-11-23 15:26:19,609 INFO L226 Difference]: Without dead ends: 3242 [2022-11-23 15:26:19,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 99 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2022-11-23 15:26:19,618 INFO L413 NwaCegarLoop]: 1829 mSDtfsCounter, 433 mSDsluCounter, 19380 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 117 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 21209 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:19,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 21209 Invalid, 2222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [117 Valid, 2104 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-11-23 15:26:19,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2022-11-23 15:26:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 2773. [2022-11-23 15:26:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2773 states, 1690 states have (on average 1.3497041420118343) internal successors, (2281), 1768 states have internal predecessors, (2281), 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) [2022-11-23 15:26:19,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2773 states to 2773 states and 4036 transitions. [2022-11-23 15:26:19,940 INFO L78 Accepts]: Start accepts. Automaton has 2773 states and 4036 transitions. Word has length 103 [2022-11-23 15:26:19,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:19,940 INFO L495 AbstractCegarLoop]: Abstraction has 2773 states and 4036 transitions. [2022-11-23 15:26:19,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 6.0) internal successors, (54), 11 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) [2022-11-23 15:26:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2773 states and 4036 transitions. [2022-11-23 15:26:19,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-23 15:26:19,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:19,946 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] [2022-11-23 15:26:19,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:26:20,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 15:26:20,157 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:20,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:20,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1861435192, now seen corresponding path program 1 times [2022-11-23 15:26:20,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:20,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100586028] [2022-11-23 15:26:20,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:20,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:20,528 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-23 15:26:20,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:20,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100586028] [2022-11-23 15:26:20,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100586028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:26:20,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:26:20,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:26:20,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094440703] [2022-11-23 15:26:20,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:26:20,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:26:20,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:20,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:26:20,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:26:20,531 INFO L87 Difference]: Start difference. First operand 2773 states and 4036 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) [2022-11-23 15:26:22,572 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 [] [2022-11-23 15:26:24,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:24,116 INFO L93 Difference]: Finished difference Result 2777 states and 4038 transitions. [2022-11-23 15:26:24,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:26:24,117 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 [2022-11-23 15:26:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:24,127 INFO L225 Difference]: With dead ends: 2777 [2022-11-23 15:26:24,127 INFO L226 Difference]: Without dead ends: 2774 [2022-11-23 15:26:24,129 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 [2022-11-23 15:26:24,130 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 1323 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 3622 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:24,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 3622 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-23 15:26:24,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2022-11-23 15:26:24,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2772. [2022-11-23 15:26:24,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2772 states, 1690 states have (on average 1.3485207100591716) internal successors, (2279), 1767 states have internal predecessors, (2279), 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) [2022-11-23 15:26:24,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2772 states to 2772 states and 4033 transitions. [2022-11-23 15:26:24,397 INFO L78 Accepts]: Start accepts. Automaton has 2772 states and 4033 transitions. Word has length 100 [2022-11-23 15:26:24,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:24,397 INFO L495 AbstractCegarLoop]: Abstraction has 2772 states and 4033 transitions. [2022-11-23 15:26:24,398 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) [2022-11-23 15:26:24,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2772 states and 4033 transitions. [2022-11-23 15:26:24,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-23 15:26:24,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:24,403 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] [2022-11-23 15:26:24,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 15:26:24,403 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:24,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:24,404 INFO L85 PathProgramCache]: Analyzing trace with hash -162604397, now seen corresponding path program 1 times [2022-11-23 15:26:24,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:24,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602510911] [2022-11-23 15:26:24,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:24,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-23 15:26:25,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:25,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602510911] [2022-11-23 15:26:25,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602510911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:26:25,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:26:25,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 15:26:25,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536814580] [2022-11-23 15:26:25,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:26:25,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:26:25,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:25,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:26:25,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:26:25,403 INFO L87 Difference]: Start difference. First operand 2772 states and 4033 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) [2022-11-23 15:26:27,442 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 [] [2022-11-23 15:26:31,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:31,145 INFO L93 Difference]: Finished difference Result 4662 states and 6765 transitions. [2022-11-23 15:26:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:26:31,149 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 [2022-11-23 15:26:31,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:31,158 INFO L225 Difference]: With dead ends: 4662 [2022-11-23 15:26:31,158 INFO L226 Difference]: Without dead ends: 2770 [2022-11-23 15:26:31,162 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 [2022-11-23 15:26:31,163 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 520 mSDsluCounter, 10394 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 125 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 11941 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:31,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 11941 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1312 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 15:26:31,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2022-11-23 15:26:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2761. [2022-11-23 15:26:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 1683 states have (on average 1.3493761140819964) internal successors, (2271), 1760 states have internal predecessors, (2271), 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) [2022-11-23 15:26:31,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 4021 transitions. [2022-11-23 15:26:31,375 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 4021 transitions. Word has length 108 [2022-11-23 15:26:31,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:31,375 INFO L495 AbstractCegarLoop]: Abstraction has 2761 states and 4021 transitions. [2022-11-23 15:26:31,375 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) [2022-11-23 15:26:31,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 4021 transitions. [2022-11-23 15:26:31,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 15:26:31,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:31,379 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] [2022-11-23 15:26:31,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 15:26:31,379 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:31,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:31,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1386876161, now seen corresponding path program 1 times [2022-11-23 15:26:31,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:31,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119416482] [2022-11-23 15:26:31,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:31,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:26:31,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:26:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:26:31,901 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:26:31,901 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:26:31,903 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:26:31,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 15:26:31,908 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:26:31,914 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:26:32,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:26:32 BoogieIcfgContainer [2022-11-23 15:26:32,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:26:32,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:26:32,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:26:32,221 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:26:32,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:59" (3/4) ... [2022-11-23 15:26:32,225 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:26:32,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:26:32,226 INFO L158 Benchmark]: Toolchain (without parser) took 175595.58ms. Allocated memory was 127.9MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 81.8MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-23 15:26:32,226 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 54.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:26:32,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1934.33ms. Allocated memory was 127.9MB in the beginning and 167.8MB in the end (delta: 39.8MB). Free memory was 81.4MB in the beginning and 107.7MB in the end (delta: -26.4MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2022-11-23 15:26:32,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 206.81ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 87.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 15:26:32,227 INFO L158 Benchmark]: Boogie Preprocessor took 206.63ms. Allocated memory is still 167.8MB. Free memory was 87.8MB in the beginning and 65.5MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 15:26:32,227 INFO L158 Benchmark]: RCFGBuilder took 20385.07ms. Allocated memory was 167.8MB in the beginning and 1.1GB in the end (delta: 931.1MB). Free memory was 65.5MB in the beginning and 479.3MB in the end (delta: -413.9MB). Peak memory consumption was 636.0MB. Max. memory is 16.1GB. [2022-11-23 15:26:32,227 INFO L158 Benchmark]: TraceAbstraction took 152849.12ms. Allocated memory was 1.1GB in the beginning and 3.9GB in the end (delta: 2.8GB). Free memory was 479.3MB in the beginning and 2.7GB in the end (delta: -2.2GB). Peak memory consumption was 596.5MB. Max. memory is 16.1GB. [2022-11-23 15:26:32,228 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 3.9GB. Free memory is still 2.7GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:26:32,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 54.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1934.33ms. Allocated memory was 127.9MB in the beginning and 167.8MB in the end (delta: 39.8MB). Free memory was 81.4MB in the beginning and 107.7MB in the end (delta: -26.4MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 206.81ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 87.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 206.63ms. Allocated memory is still 167.8MB. Free memory was 87.8MB in the beginning and 65.5MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * RCFGBuilder took 20385.07ms. Allocated memory was 167.8MB in the beginning and 1.1GB in the end (delta: 931.1MB). Free memory was 65.5MB in the beginning and 479.3MB in the end (delta: -413.9MB). Peak memory consumption was 636.0MB. Max. memory is 16.1GB. * TraceAbstraction took 152849.12ms. Allocated memory was 1.1GB in the beginning and 3.9GB in the end (delta: 2.8GB). Free memory was 479.3MB in the beginning and 2.7GB in the end (delta: -2.2GB). Peak memory consumption was 596.5MB. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 3.9GB. Free memory is still 2.7GB. 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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5521] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=8, strings={120:0}, stringtab={121:0}, tmp___0=-2, unknown-#in~size-unknown=8, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5521] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5521] tmp = ldv_zalloc(8UL) [L5522] ldvarg0 = (struct usb_ctrlrequest *)tmp VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5523] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=1, strings={120:0}, stringtab={121:0}, tmp___0=-3, unknown-#in~size-unknown=1, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5523] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5523] tmp___0 = ldv_zalloc(1UL) [L5524] ldvarg7 = (char *)tmp___0 VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5525] CALL, EXPR ldv_zalloc(16UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=16, strings={120:0}, stringtab={121:0}, tmp___0=-4, unknown-#in~size-unknown=16, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5525] RET, EXPR ldv_zalloc(16UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5525] tmp___1 = ldv_zalloc(16UL) [L5526] ldvarg3 = (struct poll_table_struct *)tmp___1 VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5527] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=8, strings={120:0}, stringtab={121:0}, tmp___0=-5, unknown-#in~size-unknown=8, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5527] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=4294967303, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967303, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5533] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=8, strings={120:0}, stringtab={121:0}, tmp___0=-7, unknown-#in~size-unknown=8, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5533] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=4294967303, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967303, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=4294967303, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967303, tmp___5={0:0}, tmp___6=-8, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5537] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=1, strings={120:0}, stringtab={121:0}, tmp___0=-9, unknown-#in~size-unknown=1, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5537] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=4294967303, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967303, tmp___5={0:0}, tmp___6=-8, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=4294967303, ldvarg10={0:0}, ldvarg2=57, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967303, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=57, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=4294967303, ldvarg10={0:0}, ldvarg2=57, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967303, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=57, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: [L5610] case 1: VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=4294967303, ldvarg10={0:0}, ldvarg2=57, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967303, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=57, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5901] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, unknown-#in~size-unknown=120, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=120, strings={120:0}, stringtab={121:0}, tmp___0=1, unknown-#in~size-unknown=120, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5901] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5901] is_got = ldv_malloc(sizeof(struct class)) [L5902] COND TRUE (unsigned long )is_got <= 2012UL VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5903] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5907] COND TRUE ldv_usb_gadget_class == 0 VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5911] ldv_usb_gadget_class = 1 VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5423] CALL, EXPR IS_ERR((void const *)usb_gadget_class) VAL [#in~ptr={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5736] long tmp ; VAL [#in~ptr={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5738] CALL, EXPR ldv_is_err(ptr) VAL [#in~ptr={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5861] return ((unsigned long )ptr > 2012UL); [L5738] RET, EXPR ldv_is_err(ptr) VAL [#in~ptr={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5738] tmp = ldv_is_err(ptr) [L5739] return (tmp); [L5423] RET, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5956] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, ret=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5851] COND TRUE ret <= 0 [L5855] return (ret); [L5956] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5956] is_reg = ldv_undef_int_nonpositive() [L5957] COND TRUE ! is_reg VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5958] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5962] COND TRUE ldv_usb_gadget_chrdev == 0 VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5966] ldv_usb_gadget_chrdev = 1 VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5991] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, ret=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5851] COND TRUE ret <= 0 [L5855] return (ret); [L5991] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5991] is_reg = ldv_undef_int_nonpositive() [L5992] COND TRUE ! is_reg VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5993] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5997] ldv_usb_gadget = 1 VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, status=0, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5446] return (status); VAL [\result=0, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, status=0, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5612] RET, EXPR init() [L5612] ldv_retval_2 = init() [L5613] COND FALSE !(ldv_retval_2 != 0) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=4294967303, ldvarg10={0:0}, ldvarg2=57, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967303, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=57, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5475] CALL, EXPR ldv_zalloc(1072UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=1072, strings={120:0}, stringtab={121:0}, tmp___0=-11, unknown-#in~size-unknown=1072, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5475] RET, EXPR ldv_zalloc(1072UL) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=4294967303, ldvarg10={0:0}, ldvarg2=57, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967303, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=57, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=4294967303, ldvarg10={0:0}, ldvarg2=57, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=0, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967303, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=57, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5603] COND TRUE ldv_state_variable_0 == 2 && ref_cnt == 0 [L5604] CALL cleanup() [L5451] int status ; VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5453] FCALL mutex_lock_nested(& usb_printer_gadget.lock_printer_io, 0U) VAL [__this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5454] CALL ldv_class_destroy_12(usb_gadget_class) [L5813] FCALL class_destroy(ldv_func_arg1) VAL [#in~ldv_func_arg1={0:0}, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5814] CALL ldv_unregister_class() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5940] COND FALSE !(ldv_usb_gadget == 0) VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5942] CALL ldv_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L3238] reach_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967386:4294967407}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 68 procedures, 994 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 152.5s, OverallIterations: 17, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 104.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 mSolverCounterUnknown, 20381 SdHoareTripleChecker+Valid, 85.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19560 mSDsluCounter, 164442 SdHoareTripleChecker+Invalid, 80.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 133182 mSDsCounter, 1893 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20634 IncrementalHoareTripleChecker+Invalid, 22543 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1893 mSolverCounterUnsat, 31260 mSDtfsCounter, 20634 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24755occurred in iteration=5, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 20140 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 9.7s SatisfiabilityAnalysisTime, 19.3s InterpolantComputationTime, 1634 NumberOfCodeBlocks, 1634 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1504 ConstructedInterpolants, 0 QuantifiedInterpolants, 2601 SizeOfPredicates, 22 NumberOfNonLiveVariables, 4898 ConjunctsInSsa, 75 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 [2022-11-23 15:26:32,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/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_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 15:26:34,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:26:34,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:26:34,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:26:34,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:26:34,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:26:34,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:26:34,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:26:34,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:26:34,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:26:34,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:26:34,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:26:34,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:26:34,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:26:34,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:26:34,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:26:34,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:26:34,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:26:34,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:26:35,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:26:35,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:26:35,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:26:35,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:26:35,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:26:35,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:26:35,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:26:35,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:26:35,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:26:35,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:26:35,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:26:35,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:26:35,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:26:35,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:26:35,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:26:35,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:26:35,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:26:35,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:26:35,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:26:35,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:26:35,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:26:35,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:26:35,031 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 15:26:35,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:26:35,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:26:35,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:26:35,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:26:35,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:26:35,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:26:35,057 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:26:35,058 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:26:35,058 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:26:35,058 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:26:35,058 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:26:35,059 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:26:35,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:26:35,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:26:35,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:26:35,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:26:35,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:26:35,061 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:26:35,061 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:26:35,061 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:26:35,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:26:35,062 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:26:35,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:26:35,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:26:35,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:26:35,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:26:35,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:26:35,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:26:35,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:26:35,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:26:35,064 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:26:35,065 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:26:35,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:26:35,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:26:35,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:26:35,066 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_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2022-11-23 15:26:35,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:26:35,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:26:35,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:26:35,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:26:35,448 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:26:35,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-23 15:26:38,464 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:26:39,020 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:26:39,023 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-23 15:26:39,063 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/data/0c1f54642/007223b26f2c4841b58a71fe0f5614d5/FLAGc7c6461de [2022-11-23 15:26:39,082 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/data/0c1f54642/007223b26f2c4841b58a71fe0f5614d5 [2022-11-23 15:26:39,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:26:39,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:26:39,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:26:39,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:26:39,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:26:39,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:39" (1/1) ... [2022-11-23 15:26:39,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dbf1812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:39, skipping insertion in model container [2022-11-23 15:26:39,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:39" (1/1) ... [2022-11-23 15:26:39,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:26:39,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:26:40,079 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/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] [2022-11-23 15:26:40,326 WARN L569 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-11-23 15:26:40,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:40,690 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-23 15:26:40,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:26:40,861 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/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] [2022-11-23 15:26:41,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:41,084 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:26:41,188 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/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] [2022-11-23 15:26:41,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:41,476 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:26:41,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41 WrapperNode [2022-11-23 15:26:41,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:26:41,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:26:41,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:26:41,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:26:41,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:41,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:41,800 INFO L138 Inliner]: procedures = 219, calls = 1278, calls flagged for inlining = 89, calls inlined = 89, statements flattened = 3387 [2022-11-23 15:26:41,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:26:41,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:26:41,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:26:41,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:26:41,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:41,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:41,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:41,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:42,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:42,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:42,076 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:42,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:42,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:26:42,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:26:42,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:26:42,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:26:42,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (1/1) ... [2022-11-23 15:26:42,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:26:42,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:26:42,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:26:42,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:26:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-11-23 15:26:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-11-23 15:26:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-23 15:26:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-23 15:26:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-23 15:26:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-23 15:26:42,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 15:26:42,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:26:42,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-23 15:26:42,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:26:42,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:26:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:26:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-11-23 15:26:42,242 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-11-23 15:26:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-11-23 15:26:42,242 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-11-23 15:26:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-11-23 15:26:42,243 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-11-23 15:26:42,243 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 15:26:42,243 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 15:26:42,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:26:42,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:26:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-11-23 15:26:42,244 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-11-23 15:26:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-11-23 15:26:42,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-11-23 15:26:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-23 15:26:42,246 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-23 15:26:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-11-23 15:26:42,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-11-23 15:26:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:26:42,247 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:26:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:26:42,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:26:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-11-23 15:26:42,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-11-23 15:26:42,248 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:26:42,248 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:26:42,248 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 15:26:42,248 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 15:26:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-23 15:26:42,249 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-23 15:26:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-11-23 15:26:42,249 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-11-23 15:26:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:26:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:26:42,250 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:26:42,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:26:42,251 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-11-23 15:26:42,251 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-11-23 15:26:42,251 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-11-23 15:26:42,251 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-11-23 15:26:42,251 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:26:42,251 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:26:42,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:26:42,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:26:42,252 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-23 15:26:42,252 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-23 15:26:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:26:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:26:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-23 15:26:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-23 15:26:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-23 15:26:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:26:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 15:26:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:26:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-11-23 15:26:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-11-23 15:26:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-23 15:26:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-23 15:26:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-23 15:26:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:26:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-23 15:26:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-23 15:26:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 15:26:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 15:26:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-23 15:26:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-23 15:26:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:26:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:26:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-23 15:26:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-23 15:26:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-11-23 15:26:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-11-23 15:26:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 15:26:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 15:26:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-23 15:26:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-23 15:26:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:26:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:26:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 15:26:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 15:26:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 15:26:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 15:26:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-11-23 15:26:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-11-23 15:26:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:26:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:26:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-11-23 15:26:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-11-23 15:26:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-23 15:26:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-23 15:26:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-11-23 15:26:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-11-23 15:26:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-11-23 15:26:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-11-23 15:26:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-23 15:26:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-11-23 15:26:42,264 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-11-23 15:26:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-23 15:26:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-23 15:26:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-23 15:26:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-23 15:26:42,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-23 15:26:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:26:42,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:26:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-11-23 15:26:42,271 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-11-23 15:26:42,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:26:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-23 15:26:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-11-23 15:26:42,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-11-23 15:26:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-11-23 15:26:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-11-23 15:26:42,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-11-23 15:26:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-23 15:26:42,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-23 15:26:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:26:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:26:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:26:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-23 15:26:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-23 15:26:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-23 15:26:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-11-23 15:26:42,280 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-11-23 15:26:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-11-23 15:26:42,281 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-11-23 15:26:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-23 15:26:42,281 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-23 15:26:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 15:26:42,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 15:26:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-23 15:26:42,281 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-23 15:26:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-11-23 15:26:42,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-11-23 15:26:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-23 15:26:42,282 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-23 15:26:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:26:42,282 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:26:42,283 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-11-23 15:26:42,283 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-11-23 15:26:42,283 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-11-23 15:26:42,284 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-11-23 15:26:42,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-11-23 15:26:42,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-11-23 15:26:42,284 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-23 15:26:42,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-23 15:26:42,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-11-23 15:26:42,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-11-23 15:26:42,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-23 15:26:42,285 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-23 15:26:42,285 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-23 15:26:42,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:26:42,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:26:42,286 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 15:26:42,286 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 15:26:43,070 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:26:43,076 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:26:43,215 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:27:16,971 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:27:16,992 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:27:16,995 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:27:17,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:27:17 BoogieIcfgContainer [2022-11-23 15:27:17,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:27:17,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:27:17,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:27:17,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:27:17,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:26:39" (1/3) ... [2022-11-23 15:27:17,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9ca455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:27:17, skipping insertion in model container [2022-11-23 15:27:17,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:41" (2/3) ... [2022-11-23 15:27:17,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9ca455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:27:17, skipping insertion in model container [2022-11-23 15:27:17,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:27:17" (3/3) ... [2022-11-23 15:27:17,015 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-23 15:27:17,035 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:27:17,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:27:17,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:27:17,141 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;@7bc34d6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:27:17,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:27:17,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 1245 states, 858 states have (on average 1.3822843822843822) internal successors, (1186), 901 states have internal predecessors, (1186), 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) [2022-11-23 15:27:17,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-23 15:27:17,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:17,181 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] [2022-11-23 15:27:17,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:17,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:17,194 INFO L85 PathProgramCache]: Analyzing trace with hash -584914783, now seen corresponding path program 1 times [2022-11-23 15:27:17,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:27:17,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402412831] [2022-11-23 15:27:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:17,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:27:17,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:27:17,224 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:27:17,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:27:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:19,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:27:19,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:27:20,126 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:27:20,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:27:20,127 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:27:20,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402412831] [2022-11-23 15:27:20,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402412831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:20,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:20,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:27:20,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969087558] [2022-11-23 15:27:20,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:20,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:27:20,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:27:20,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:27:20,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:20,171 INFO L87 Difference]: Start difference. First operand has 1245 states, 858 states have (on average 1.3822843822843822) internal successors, (1186), 901 states have internal predecessors, (1186), 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) [2022-11-23 15:27:20,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:20,607 INFO L93 Difference]: Finished difference Result 3537 states and 5263 transitions. [2022-11-23 15:27:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:27:20,610 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 [2022-11-23 15:27:20,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:20,640 INFO L225 Difference]: With dead ends: 3537 [2022-11-23 15:27:20,640 INFO L226 Difference]: Without dead ends: 2278 [2022-11-23 15:27:20,654 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 [2022-11-23 15:27:20,657 INFO L413 NwaCegarLoop]: 1980 mSDtfsCounter, 1652 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 3603 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:20,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 3603 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:27:20,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2022-11-23 15:27:20,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2274. [2022-11-23 15:27:20,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1556 states have (on average 1.3579691516709511) internal successors, (2113), 1617 states have internal predecessors, (2113), 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) [2022-11-23 15:27:20,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3293 transitions. [2022-11-23 15:27:20,908 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3293 transitions. Word has length 56 [2022-11-23 15:27:20,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:20,910 INFO L495 AbstractCegarLoop]: Abstraction has 2274 states and 3293 transitions. [2022-11-23 15:27:20,916 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) [2022-11-23 15:27:20,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3293 transitions. [2022-11-23 15:27:20,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 15:27:20,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:20,924 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] [2022-11-23 15:27:20,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:27:21,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:27:21,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:21,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:21,146 INFO L85 PathProgramCache]: Analyzing trace with hash -953431060, now seen corresponding path program 1 times [2022-11-23 15:27:21,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:27:21,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185153322] [2022-11-23 15:27:21,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:21,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:27:21,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:27:21,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:27:21,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 15:27:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:22,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1312 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:27:22,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:27:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:27:23,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:27:23,982 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:27:23,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185153322] [2022-11-23 15:27:23,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185153322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:23,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:23,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:27:23,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304019722] [2022-11-23 15:27:23,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:23,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:27:23,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:27:23,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:27:23,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:23,985 INFO L87 Difference]: Start difference. First operand 2274 states and 3293 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) [2022-11-23 15:27:24,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:24,298 INFO L93 Difference]: Finished difference Result 6760 states and 9802 transitions. [2022-11-23 15:27:24,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:27:24,299 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 [2022-11-23 15:27:24,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:24,335 INFO L225 Difference]: With dead ends: 6760 [2022-11-23 15:27:24,335 INFO L226 Difference]: Without dead ends: 4501 [2022-11-23 15:27:24,349 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 [2022-11-23 15:27:24,351 INFO L413 NwaCegarLoop]: 2045 mSDtfsCounter, 1636 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 3666 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 [2022-11-23 15:27:24,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 3666 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:27:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2022-11-23 15:27:24,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4493. [2022-11-23 15:27:24,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4493 states, 3083 states have (on average 1.3593902043464159) internal successors, (4191), 3196 states have internal predecessors, (4191), 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) [2022-11-23 15:27:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4493 states to 4493 states and 6513 transitions. [2022-11-23 15:27:24,673 INFO L78 Accepts]: Start accepts. Automaton has 4493 states and 6513 transitions. Word has length 57 [2022-11-23 15:27:24,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:24,674 INFO L495 AbstractCegarLoop]: Abstraction has 4493 states and 6513 transitions. [2022-11-23 15:27:24,674 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) [2022-11-23 15:27:24,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4493 states and 6513 transitions. [2022-11-23 15:27:24,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-23 15:27:24,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:24,677 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] [2022-11-23 15:27:24,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:27:24,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:27:24,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:24,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:24,891 INFO L85 PathProgramCache]: Analyzing trace with hash -536749712, now seen corresponding path program 1 times [2022-11-23 15:27:24,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:27:24,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730279284] [2022-11-23 15:27:24,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:24,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:27:24,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:27:24,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:27:24,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 15:27:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:26,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:27:26,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:27:26,658 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:27:26,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:27:26,658 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:27:26,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730279284] [2022-11-23 15:27:26,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730279284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:26,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:26,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:27:26,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497332395] [2022-11-23 15:27:26,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:26,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:27:26,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:27:26,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:27:26,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:27:26,661 INFO L87 Difference]: Start difference. First operand 4493 states and 6513 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) [2022-11-23 15:27:29,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:27:30,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:30,027 INFO L93 Difference]: Finished difference Result 13209 states and 19171 transitions. [2022-11-23 15:27:30,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:27:30,027 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 [2022-11-23 15:27:30,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:30,108 INFO L225 Difference]: With dead ends: 13209 [2022-11-23 15:27:30,108 INFO L226 Difference]: Without dead ends: 8731 [2022-11-23 15:27:30,134 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 [2022-11-23 15:27:30,139 INFO L413 NwaCegarLoop]: 2083 mSDtfsCounter, 1623 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 3678 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 [2022-11-23 15:27:30,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 3678 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-11-23 15:27:30,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8731 states. [2022-11-23 15:27:30,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 8723. [2022-11-23 15:27:30,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8723 states, 5978 states have (on average 1.3611575777852125) internal successors, (8137), 6186 states have internal predecessors, (8137), 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) [2022-11-23 15:27:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8723 states to 8723 states and 12659 transitions. [2022-11-23 15:27:30,760 INFO L78 Accepts]: Start accepts. Automaton has 8723 states and 12659 transitions. Word has length 59 [2022-11-23 15:27:30,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:30,761 INFO L495 AbstractCegarLoop]: Abstraction has 8723 states and 12659 transitions. [2022-11-23 15:27:30,762 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) [2022-11-23 15:27:30,762 INFO L276 IsEmpty]: Start isEmpty. Operand 8723 states and 12659 transitions. [2022-11-23 15:27:30,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 15:27:30,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:30,766 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] [2022-11-23 15:27:30,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:27:30,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:27:30,981 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:30,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:30,981 INFO L85 PathProgramCache]: Analyzing trace with hash -101352454, now seen corresponding path program 1 times [2022-11-23 15:27:30,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:27:30,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506886433] [2022-11-23 15:27:30,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:30,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:27:30,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:27:30,985 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:27:31,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 15:27:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:32,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 1357 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:27:32,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:27:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:27:33,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:27:33,312 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:27:33,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506886433] [2022-11-23 15:27:33,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506886433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:33,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:33,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:27:33,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356751806] [2022-11-23 15:27:33,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:33,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:27:33,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:27:33,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:27:33,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:27:33,315 INFO L87 Difference]: Start difference. First operand 8723 states and 12659 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) [2022-11-23 15:27:34,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:34,267 INFO L93 Difference]: Finished difference Result 18580 states and 27162 transitions. [2022-11-23 15:27:34,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:27:34,268 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 [2022-11-23 15:27:34,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:34,352 INFO L225 Difference]: With dead ends: 18580 [2022-11-23 15:27:34,352 INFO L226 Difference]: Without dead ends: 9872 [2022-11-23 15:27:34,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:27:34,392 INFO L413 NwaCegarLoop]: 1911 mSDtfsCounter, 233 mSDsluCounter, 5529 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 7440 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:34,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 7440 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:27:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9872 states. [2022-11-23 15:27:35,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9872 to 8739. [2022-11-23 15:27:35,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8739 states, 5990 states have (on average 1.3604340567612687) internal successors, (8149), 6198 states have internal predecessors, (8149), 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) [2022-11-23 15:27:35,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8739 states to 8739 states and 12683 transitions. [2022-11-23 15:27:35,211 INFO L78 Accepts]: Start accepts. Automaton has 8739 states and 12683 transitions. Word has length 75 [2022-11-23 15:27:35,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:35,211 INFO L495 AbstractCegarLoop]: Abstraction has 8739 states and 12683 transitions. [2022-11-23 15:27:35,211 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) [2022-11-23 15:27:35,212 INFO L276 IsEmpty]: Start isEmpty. Operand 8739 states and 12683 transitions. [2022-11-23 15:27:35,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 15:27:35,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:35,217 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] [2022-11-23 15:27:35,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:27:35,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:27:35,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:35,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:35,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1238798066, now seen corresponding path program 1 times [2022-11-23 15:27:35,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:27:35,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911492643] [2022-11-23 15:27:35,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:35,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:27:35,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:27:35,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:27:35,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 15:27:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:37,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 1359 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 15:27:37,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:27:42,406 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:27:42,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:27:42,407 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:27:42,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911492643] [2022-11-23 15:27:42,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911492643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:27:42,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:27:42,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-23 15:27:42,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474282026] [2022-11-23 15:27:42,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:27:42,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:27:42,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:27:42,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:27:42,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 15:27:42,410 INFO L87 Difference]: Start difference. First operand 8739 states and 12683 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) [2022-11-23 15:27:44,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:27:47,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:27:49,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:27:52,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:36,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:36,755 INFO L93 Difference]: Finished difference Result 25578 states and 37419 transitions. [2022-11-23 15:29:36,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 15:29:36,757 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 [2022-11-23 15:29:36,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:36,854 INFO L225 Difference]: With dead ends: 25578 [2022-11-23 15:29:36,855 INFO L226 Difference]: Without dead ends: 16854 [2022-11-23 15:29:36,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2022-11-23 15:29:36,895 INFO L413 NwaCegarLoop]: 2149 mSDtfsCounter, 2665 mSDsluCounter, 20485 mSDsCounter, 0 mSdLazyCounter, 3200 mSolverCounterSat, 248 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2739 SdHoareTripleChecker+Valid, 22634 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 3200 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:36,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2739 Valid, 22634 Invalid, 3452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [248 Valid, 3200 Invalid, 4 Unknown, 0 Unchecked, 106.8s Time] [2022-11-23 15:29:36,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16854 states. [2022-11-23 15:29:38,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16854 to 15152. [2022-11-23 15:29:38,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15152 states, 10382 states have (on average 1.361972644962435) internal successors, (14140), 10743 states have internal predecessors, (14140), 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) [2022-11-23 15:29:38,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15152 states to 15152 states and 22023 transitions. [2022-11-23 15:29:38,176 INFO L78 Accepts]: Start accepts. Automaton has 15152 states and 22023 transitions. Word has length 77 [2022-11-23 15:29:38,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:38,176 INFO L495 AbstractCegarLoop]: Abstraction has 15152 states and 22023 transitions. [2022-11-23 15:29:38,176 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) [2022-11-23 15:29:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand 15152 states and 22023 transitions. [2022-11-23 15:29:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-23 15:29:38,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:38,180 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] [2022-11-23 15:29:38,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:29:38,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:29:38,400 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:38,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:38,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1305739619, now seen corresponding path program 1 times [2022-11-23 15:29:38,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:29:38,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200763999] [2022-11-23 15:29:38,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:38,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:29:38,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:29:38,404 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:29:38,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-23 15:29:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:40,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:29:40,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:29:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:29:45,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:29:45,183 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:29:45,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200763999] [2022-11-23 15:29:45,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200763999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:45,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:45,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:29:45,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205751108] [2022-11-23 15:29:45,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:45,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:29:45,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:29:45,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:29:45,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:29:45,186 INFO L87 Difference]: Start difference. First operand 15152 states and 22023 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) [2022-11-23 15:29:46,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:46,559 INFO L93 Difference]: Finished difference Result 45403 states and 66007 transitions. [2022-11-23 15:29:46,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:29:46,559 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 [2022-11-23 15:29:46,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:46,726 INFO L225 Difference]: With dead ends: 45403 [2022-11-23 15:29:46,726 INFO L226 Difference]: Without dead ends: 30263 [2022-11-23 15:29:46,788 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 [2022-11-23 15:29:46,789 INFO L413 NwaCegarLoop]: 2116 mSDtfsCounter, 1610 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 3760 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 [2022-11-23 15:29:46,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1610 Valid, 3760 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:29:46,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30263 states. [2022-11-23 15:29:49,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30263 to 30214. [2022-11-23 15:29:49,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30214 states, 20715 states have (on average 1.3622978517982138) internal successors, (28220), 21426 states have internal predecessors, (28220), 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) [2022-11-23 15:29:49,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30214 states to 30214 states and 43938 transitions. [2022-11-23 15:29:49,304 INFO L78 Accepts]: Start accepts. Automaton has 30214 states and 43938 transitions. Word has length 83 [2022-11-23 15:29:49,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:49,305 INFO L495 AbstractCegarLoop]: Abstraction has 30214 states and 43938 transitions. [2022-11-23 15:29:49,306 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) [2022-11-23 15:29:49,306 INFO L276 IsEmpty]: Start isEmpty. Operand 30214 states and 43938 transitions. [2022-11-23 15:29:49,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-23 15:29:49,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:49,315 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] [2022-11-23 15:29:49,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-23 15:29:49,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:29:49,533 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:49,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:49,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1597031166, now seen corresponding path program 1 times [2022-11-23 15:29:49,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:29:49,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094326771] [2022-11-23 15:29:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:49,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:29:49,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:29:49,537 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:29:49,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-23 15:29:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:51,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:29:51,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:29:53,712 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:29:53,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:29:53,712 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:29:53,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094326771] [2022-11-23 15:29:53,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094326771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:53,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:53,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:29:53,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787358934] [2022-11-23 15:29:53,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:53,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:29:53,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:29:53,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:29:53,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:29:53,715 INFO L87 Difference]: Start difference. First operand 30214 states and 43938 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) [2022-11-23 15:29:55,809 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 [] [2022-11-23 15:29:58,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:58,619 INFO L93 Difference]: Finished difference Result 60420 states and 87861 transitions. [2022-11-23 15:29:58,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:29:58,620 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 [2022-11-23 15:29:58,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:58,793 INFO L225 Difference]: With dead ends: 60420 [2022-11-23 15:29:58,793 INFO L226 Difference]: Without dead ends: 30221 [2022-11-23 15:29:58,878 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 [2022-11-23 15:29:58,879 INFO L413 NwaCegarLoop]: 3225 mSDtfsCounter, 1590 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 4897 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:58,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 4897 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-11-23 15:29:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30221 states. [2022-11-23 15:30:01,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30221 to 30195. [2022-11-23 15:30:01,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30195 states, 20696 states have (on average 1.361857363741786) internal successors, (28185), 21409 states have internal predecessors, (28185), 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) [2022-11-23 15:30:01,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30195 states to 30195 states and 43903 transitions. [2022-11-23 15:30:01,450 INFO L78 Accepts]: Start accepts. Automaton has 30195 states and 43903 transitions. Word has length 92 [2022-11-23 15:30:01,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:01,451 INFO L495 AbstractCegarLoop]: Abstraction has 30195 states and 43903 transitions. [2022-11-23 15:30:01,451 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) [2022-11-23 15:30:01,451 INFO L276 IsEmpty]: Start isEmpty. Operand 30195 states and 43903 transitions. [2022-11-23 15:30:01,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-23 15:30:01,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:01,455 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] [2022-11-23 15:30:01,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-23 15:30:01,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:30:01,668 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:30:01,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:01,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1938339632, now seen corresponding path program 1 times [2022-11-23 15:30:01,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:30:01,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555407155] [2022-11-23 15:30:01,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:01,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:30:01,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:30:01,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:30:01,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-23 15:30:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:03,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 1402 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-23 15:30:03,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:30:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-23 15:30:28,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:30:28,085 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:30:28,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555407155] [2022-11-23 15:30:28,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555407155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:28,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:30:28,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-23 15:30:28,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625543229] [2022-11-23 15:30:28,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:28,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-23 15:30:28,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:30:28,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-23 15:30:28,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-11-23 15:30:28,088 INFO L87 Difference]: Start difference. First operand 30195 states and 43903 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) [2022-11-23 15:30:30,180 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 [] [2022-11-23 15:31:48,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:31:48,616 INFO L93 Difference]: Finished difference Result 56108 states and 81635 transitions. [2022-11-23 15:31:48,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 15:31:48,617 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 [2022-11-23 15:31:48,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:31:48,763 INFO L225 Difference]: With dead ends: 56108 [2022-11-23 15:31:48,764 INFO L226 Difference]: Without dead ends: 25928 [2022-11-23 15:31:48,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 32.0s TimeCoverageRelationStatistics Valid=135, Invalid=1125, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:31:48,847 INFO L413 NwaCegarLoop]: 1824 mSDtfsCounter, 2387 mSDsluCounter, 24251 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 246 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 26075 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:31:48,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 26075 Invalid, 2061 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [246 Valid, 1814 Invalid, 1 Unknown, 0 Unchecked, 64.3s Time] [2022-11-23 15:31:48,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25928 states. [2022-11-23 15:31:50,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25928 to 17269. [2022-11-23 15:31:50,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17269 states, 11827 states have (on average 1.36078464530312) internal successors, (16094), 12229 states have internal predecessors, (16094), 4496 states have call successors, (4496), 952 states have call predecessors, (4496), 945 states have return successors, (4490), 4423 states have call predecessors, (4490), 4484 states have call successors, (4490) [2022-11-23 15:31:50,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17269 states to 17269 states and 25080 transitions. [2022-11-23 15:31:50,605 INFO L78 Accepts]: Start accepts. Automaton has 17269 states and 25080 transitions. Word has length 97 [2022-11-23 15:31:50,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:31:50,606 INFO L495 AbstractCegarLoop]: Abstraction has 17269 states and 25080 transitions. [2022-11-23 15:31:50,606 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) [2022-11-23 15:31:50,606 INFO L276 IsEmpty]: Start isEmpty. Operand 17269 states and 25080 transitions. [2022-11-23 15:31:50,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-23 15:31:50,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:31:50,611 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] [2022-11-23 15:31:50,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-23 15:31:50,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:31:50,832 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:31:50,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:31:50,833 INFO L85 PathProgramCache]: Analyzing trace with hash -982414442, now seen corresponding path program 1 times [2022-11-23 15:31:50,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:31:50,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084989215] [2022-11-23 15:31:50,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:31:50,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:31:50,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:31:50,841 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:31:50,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-23 15:31:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:31:52,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:31:52,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:31:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:31:54,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:31:54,030 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:31:54,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084989215] [2022-11-23 15:31:54,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084989215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:31:54,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:31:54,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:31:54,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317740374] [2022-11-23 15:31:54,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:31:54,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:31:54,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:31:54,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:31:54,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:31:54,032 INFO L87 Difference]: Start difference. First operand 17269 states and 25080 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) [2022-11-23 15:31:57,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:31:57,926 INFO L93 Difference]: Finished difference Result 33102 states and 48187 transitions. [2022-11-23 15:31:57,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:31:57,927 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 [2022-11-23 15:31:57,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:31:57,994 INFO L225 Difference]: With dead ends: 33102 [2022-11-23 15:31:57,994 INFO L226 Difference]: Without dead ends: 15848 [2022-11-23 15:31:58,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:31:58,037 INFO L413 NwaCegarLoop]: 2126 mSDtfsCounter, 1363 mSDsluCounter, 7788 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 9914 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 [2022-11-23 15:31:58,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 9914 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-23 15:31:58,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15848 states. [2022-11-23 15:31:59,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15848 to 13004. [2022-11-23 15:31:59,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13004 states, 8907 states have (on average 1.3596048052093859) internal successors, (12110), 9207 states have internal predecessors, (12110), 3380 states have call successors, (3380), 724 states have call predecessors, (3380), 716 states have return successors, (3373), 3324 states have call predecessors, (3373), 3370 states have call successors, (3373) [2022-11-23 15:31:59,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 18863 transitions. [2022-11-23 15:31:59,135 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 18863 transitions. Word has length 104 [2022-11-23 15:31:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:31:59,136 INFO L495 AbstractCegarLoop]: Abstraction has 13004 states and 18863 transitions. [2022-11-23 15:31:59,136 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) [2022-11-23 15:31:59,136 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 18863 transitions. [2022-11-23 15:31:59,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-23 15:31:59,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:31:59,141 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] [2022-11-23 15:31:59,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-23 15:31:59,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:31:59,365 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:31:59,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:31:59,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1555550050, now seen corresponding path program 1 times [2022-11-23 15:31:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:31:59,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383811379] [2022-11-23 15:31:59,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:31:59,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:31:59,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:31:59,373 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:31:59,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-23 15:32:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:01,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:32:01,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:32:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:32:02,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:32:02,391 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:32:02,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383811379] [2022-11-23 15:32:02,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383811379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:02,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:02,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:32:02,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085368581] [2022-11-23 15:32:02,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:02,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:32:02,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:32:02,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:32:02,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:32:02,395 INFO L87 Difference]: Start difference. First operand 13004 states and 18863 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) [2022-11-23 15:32:05,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:05,379 INFO L93 Difference]: Finished difference Result 14836 states and 21617 transitions. [2022-11-23 15:32:05,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:32:05,380 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 [2022-11-23 15:32:05,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:05,411 INFO L225 Difference]: With dead ends: 14836 [2022-11-23 15:32:05,412 INFO L226 Difference]: Without dead ends: 8383 [2022-11-23 15:32:05,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:32:05,434 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 911 mSDsluCounter, 7456 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 9459 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 [2022-11-23 15:32:05,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 9459 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-23 15:32:05,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8383 states. [2022-11-23 15:32:06,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8383 to 7663. [2022-11-23 15:32:06,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7663 states, 5253 states have (on average 1.3554159527888825) internal successors, (7120), 5428 states have internal predecessors, (7120), 1981 states have call successors, (1981), 432 states have call predecessors, (1981), 428 states have return successors, (1976), 1949 states have call predecessors, (1976), 1973 states have call successors, (1976) [2022-11-23 15:32:06,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7663 states to 7663 states and 11077 transitions. [2022-11-23 15:32:06,278 INFO L78 Accepts]: Start accepts. Automaton has 7663 states and 11077 transitions. Word has length 104 [2022-11-23 15:32:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:06,278 INFO L495 AbstractCegarLoop]: Abstraction has 7663 states and 11077 transitions. [2022-11-23 15:32:06,278 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) [2022-11-23 15:32:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 7663 states and 11077 transitions. [2022-11-23 15:32:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-23 15:32:06,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:06,287 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] [2022-11-23 15:32:06,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-23 15:32:06,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:06,493 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:32:06,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:06,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1339836353, now seen corresponding path program 1 times [2022-11-23 15:32:06,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:32:06,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27061236] [2022-11-23 15:32:06,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:06,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:06,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:32:06,496 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:32:06,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-23 15:32:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:08,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:32:08,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:32:09,301 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-23 15:32:09,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:32:09,301 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:32:09,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27061236] [2022-11-23 15:32:09,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27061236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:09,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:09,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:32:09,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799860815] [2022-11-23 15:32:09,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:09,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:32:09,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:32:09,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:32:09,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:32:09,303 INFO L87 Difference]: Start difference. First operand 7663 states and 11077 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) [2022-11-23 15:32:12,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:12,433 INFO L93 Difference]: Finished difference Result 8456 states and 12330 transitions. [2022-11-23 15:32:12,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:32:12,433 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 [2022-11-23 15:32:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:12,451 INFO L225 Difference]: With dead ends: 8456 [2022-11-23 15:32:12,451 INFO L226 Difference]: Without dead ends: 6308 [2022-11-23 15:32:12,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:32:12,460 INFO L413 NwaCegarLoop]: 2149 mSDtfsCounter, 864 mSDsluCounter, 7569 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 9718 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:12,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 9718 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-23 15:32:12,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6308 states. [2022-11-23 15:32:13,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6308 to 5542. [2022-11-23 15:32:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5542 states, 3802 states have (on average 1.3513940031562335) internal successors, (5138), 3929 states have internal predecessors, (5138), 1426 states have call successors, (1426), 316 states have call predecessors, (1426), 313 states have return successors, (1421), 1401 states have call predecessors, (1421), 1418 states have call successors, (1421) [2022-11-23 15:32:13,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 7985 transitions. [2022-11-23 15:32:13,103 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 7985 transitions. Word has length 107 [2022-11-23 15:32:13,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:13,104 INFO L495 AbstractCegarLoop]: Abstraction has 5542 states and 7985 transitions. [2022-11-23 15:32:13,104 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) [2022-11-23 15:32:13,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 7985 transitions. [2022-11-23 15:32:13,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-23 15:32:13,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:13,108 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] [2022-11-23 15:32:13,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-23 15:32:13,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:13,308 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:32:13,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:13,309 INFO L85 PathProgramCache]: Analyzing trace with hash 133770014, now seen corresponding path program 1 times [2022-11-23 15:32:13,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:32:13,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717854222] [2022-11-23 15:32:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:13,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:13,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:32:13,311 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:32:13,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-23 15:32:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:15,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:32:15,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:32:16,305 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-23 15:32:16,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:32:16,306 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:32:16,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717854222] [2022-11-23 15:32:16,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717854222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:16,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:16,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:32:16,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101488153] [2022-11-23 15:32:16,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:16,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:32:16,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:32:16,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:32:16,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:32:16,308 INFO L87 Difference]: Start difference. First operand 5542 states and 7985 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) [2022-11-23 15:32:19,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:19,187 INFO L93 Difference]: Finished difference Result 11057 states and 15933 transitions. [2022-11-23 15:32:19,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:32:19,188 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 [2022-11-23 15:32:19,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:19,205 INFO L225 Difference]: With dead ends: 11057 [2022-11-23 15:32:19,205 INFO L226 Difference]: Without dead ends: 5530 [2022-11-23 15:32:19,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:32:19,221 INFO L413 NwaCegarLoop]: 1956 mSDtfsCounter, 792 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 8768 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:19,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 8768 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 15:32:19,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2022-11-23 15:32:19,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 5524. [2022-11-23 15:32:19,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5524 states, 3790 states have (on average 1.3514511873350923) internal successors, (5122), 3917 states have internal predecessors, (5122), 1422 states have call successors, (1422), 312 states have call predecessors, (1422), 311 states have return successors, (1417), 1399 states have call predecessors, (1417), 1414 states have call successors, (1417) [2022-11-23 15:32:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5524 states to 5524 states and 7961 transitions. [2022-11-23 15:32:19,656 INFO L78 Accepts]: Start accepts. Automaton has 5524 states and 7961 transitions. Word has length 110 [2022-11-23 15:32:19,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:19,657 INFO L495 AbstractCegarLoop]: Abstraction has 5524 states and 7961 transitions. [2022-11-23 15:32:19,657 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) [2022-11-23 15:32:19,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5524 states and 7961 transitions. [2022-11-23 15:32:19,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-23 15:32:19,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:19,661 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] [2022-11-23 15:32:19,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-23 15:32:19,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:19,886 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:32:19,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1120915236, now seen corresponding path program 1 times [2022-11-23 15:32:19,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:32:19,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735141328] [2022-11-23 15:32:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:19,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:19,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:32:19,889 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:32:19,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-23 15:32:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:21,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 15:32:21,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:32:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-23 15:32:23,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:32:23,930 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:32:23,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735141328] [2022-11-23 15:32:23,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735141328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:23,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:23,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:32:23,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664469494] [2022-11-23 15:32:23,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:23,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:32:23,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:32:23,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:32:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:32:23,933 INFO L87 Difference]: Start difference. First operand 5524 states and 7961 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) [2022-11-23 15:32:30,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:30,884 INFO L93 Difference]: Finished difference Result 9999 states and 14388 transitions. [2022-11-23 15:32:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:32:30,885 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 [2022-11-23 15:32:30,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:30,899 INFO L225 Difference]: With dead ends: 9999 [2022-11-23 15:32:30,899 INFO L226 Difference]: Without dead ends: 4490 [2022-11-23 15:32:30,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:32:30,913 INFO L413 NwaCegarLoop]: 1885 mSDtfsCounter, 2676 mSDsluCounter, 8502 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:30,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 10387 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-23 15:32:30,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4490 states. [2022-11-23 15:32:31,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4490 to 4490. [2022-11-23 15:32:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4490 states, 3081 states have (on average 1.3463161311262577) internal successors, (4148), 3183 states have internal predecessors, (4148), 1150 states have call successors, (1150), 259 states have call predecessors, (1150), 258 states have return successors, (1146), 1131 states have call predecessors, (1146), 1143 states have call successors, (1146) [2022-11-23 15:32:31,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4490 states to 4490 states and 6444 transitions. [2022-11-23 15:32:31,269 INFO L78 Accepts]: Start accepts. Automaton has 4490 states and 6444 transitions. Word has length 109 [2022-11-23 15:32:31,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:31,270 INFO L495 AbstractCegarLoop]: Abstraction has 4490 states and 6444 transitions. [2022-11-23 15:32:31,270 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) [2022-11-23 15:32:31,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4490 states and 6444 transitions. [2022-11-23 15:32:31,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-23 15:32:31,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:31,277 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] [2022-11-23 15:32:31,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-11-23 15:32:31,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:31,502 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:32:31,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:31,502 INFO L85 PathProgramCache]: Analyzing trace with hash 176706842, now seen corresponding path program 1 times [2022-11-23 15:32:31,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:32:31,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117599779] [2022-11-23 15:32:31,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:31,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:31,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:32:31,505 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:32:31,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-23 15:32:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:33,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:32:33,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:32:35,687 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:32:35,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:32:35,688 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:32:35,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117599779] [2022-11-23 15:32:35,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117599779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:35,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:35,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:32:35,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643585829] [2022-11-23 15:32:35,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:35,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:32:35,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:32:35,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:32:35,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:32:35,690 INFO L87 Difference]: Start difference. First operand 4490 states and 6444 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) [2022-11-23 15:32:37,786 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 [] [2022-11-23 15:32:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:38,892 INFO L93 Difference]: Finished difference Result 4494 states and 6446 transitions. [2022-11-23 15:32:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:32:38,893 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 [2022-11-23 15:32:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:38,905 INFO L225 Difference]: With dead ends: 4494 [2022-11-23 15:32:38,905 INFO L226 Difference]: Without dead ends: 4491 [2022-11-23 15:32:38,907 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 [2022-11-23 15:32:38,908 INFO L413 NwaCegarLoop]: 3113 mSDtfsCounter, 1570 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 4732 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:38,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 4732 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-11-23 15:32:38,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4491 states. [2022-11-23 15:32:39,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4491 to 4489. [2022-11-23 15:32:39,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4489 states, 3081 states have (on average 1.3453424212917884) internal successors, (4145), 3182 states have internal predecessors, (4145), 1149 states have call successors, (1149), 259 states have call predecessors, (1149), 258 states have return successors, (1146), 1131 states have call predecessors, (1146), 1143 states have call successors, (1146) [2022-11-23 15:32:39,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4489 states to 4489 states and 6440 transitions. [2022-11-23 15:32:39,267 INFO L78 Accepts]: Start accepts. Automaton has 4489 states and 6440 transitions. Word has length 120 [2022-11-23 15:32:39,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:39,267 INFO L495 AbstractCegarLoop]: Abstraction has 4489 states and 6440 transitions. [2022-11-23 15:32:39,267 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) [2022-11-23 15:32:39,267 INFO L276 IsEmpty]: Start isEmpty. Operand 4489 states and 6440 transitions. [2022-11-23 15:32:39,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-23 15:32:39,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:39,274 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] [2022-11-23 15:32:39,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-23 15:32:39,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:39,489 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:32:39,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:39,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2100800155, now seen corresponding path program 1 times [2022-11-23 15:32:39,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:32:39,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353535620] [2022-11-23 15:32:39,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:39,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:39,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:32:39,492 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:32:39,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-23 15:32:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:41,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 15:32:41,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:32:43,556 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-23 15:32:43,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:32:43,556 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:32:43,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353535620] [2022-11-23 15:32:43,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353535620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:43,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:43,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:32:43,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080025539] [2022-11-23 15:32:43,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:43,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:32:43,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:32:43,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:32:43,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:32:43,558 INFO L87 Difference]: Start difference. First operand 4489 states and 6440 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) [2022-11-23 15:32:45,640 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 [] [2022-11-23 15:32:51,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:51,249 INFO L93 Difference]: Finished difference Result 5836 states and 8282 transitions. [2022-11-23 15:32:51,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 15:32:51,249 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 [2022-11-23 15:32:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:51,256 INFO L225 Difference]: With dead ends: 5836 [2022-11-23 15:32:51,256 INFO L226 Difference]: Without dead ends: 2301 [2022-11-23 15:32:51,262 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 [2022-11-23 15:32:51,263 INFO L413 NwaCegarLoop]: 1652 mSDtfsCounter, 23 mSDsluCounter, 9888 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 11540 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:51,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 11540 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 15:32:51,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2022-11-23 15:32:51,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2254. [2022-11-23 15:32:51,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 1543 states have (on average 1.3441348023331172) internal successors, (2074), 1594 states have internal predecessors, (2074), 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) [2022-11-23 15:32:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3230 transitions. [2022-11-23 15:32:51,446 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3230 transitions. Word has length 124 [2022-11-23 15:32:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:51,446 INFO L495 AbstractCegarLoop]: Abstraction has 2254 states and 3230 transitions. [2022-11-23 15:32:51,447 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) [2022-11-23 15:32:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3230 transitions. [2022-11-23 15:32:51,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-23 15:32:51,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:51,454 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] [2022-11-23 15:32:51,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-11-23 15:32:51,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:51,676 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:32:51,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:51,677 INFO L85 PathProgramCache]: Analyzing trace with hash 798409525, now seen corresponding path program 1 times [2022-11-23 15:32:51,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:32:51,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141344803] [2022-11-23 15:32:51,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:51,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:51,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:32:51,680 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:32:51,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-23 15:32:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:53,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:32:53,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:32:54,640 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-23 15:32:54,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:32:54,641 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:32:54,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141344803] [2022-11-23 15:32:54,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141344803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:54,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:54,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:32:54,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372387275] [2022-11-23 15:32:54,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:54,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:32:54,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:32:54,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:32:54,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:32:54,643 INFO L87 Difference]: Start difference. First operand 2254 states and 3230 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) [2022-11-23 15:32:56,730 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 [] [2022-11-23 15:32:57,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:57,720 INFO L93 Difference]: Finished difference Result 3335 states and 4795 transitions. [2022-11-23 15:32:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:32:57,720 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 [2022-11-23 15:32:57,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:57,727 INFO L225 Difference]: With dead ends: 3335 [2022-11-23 15:32:57,727 INFO L226 Difference]: Without dead ends: 2227 [2022-11-23 15:32:57,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:32:57,731 INFO L413 NwaCegarLoop]: 3065 mSDtfsCounter, 1554 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 4656 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:57,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 4656 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-11-23 15:32:57,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2022-11-23 15:32:57,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2227. [2022-11-23 15:32:57,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1527 states have (on average 1.3451211525867715) internal successors, (2054), 1576 states have internal predecessors, (2054), 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) [2022-11-23 15:32:57,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3198 transitions. [2022-11-23 15:32:57,929 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3198 transitions. Word has length 130 [2022-11-23 15:32:57,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:57,930 INFO L495 AbstractCegarLoop]: Abstraction has 2227 states and 3198 transitions. [2022-11-23 15:32:57,930 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) [2022-11-23 15:32:57,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3198 transitions. [2022-11-23 15:32:57,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-23 15:32:57,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:57,936 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] [2022-11-23 15:32:57,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-23 15:32:58,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:58,157 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:32:58,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:58,157 INFO L85 PathProgramCache]: Analyzing trace with hash -281323658, now seen corresponding path program 1 times [2022-11-23 15:32:58,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:32:58,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118204952] [2022-11-23 15:32:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:58,158 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:32:58,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:32:58,159 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:32:58,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-23 15:33:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:33:00,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:33:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:33:02,589 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:33:02,590 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:33:02,591 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:33:02,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-23 15:33:02,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:33:02,820 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:33:02,825 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:33:03,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:33:03 BoogieIcfgContainer [2022-11-23 15:33:03,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:33:03,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:33:03,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:33:03,142 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:33:03,143 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:27:17" (3/4) ... [2022-11-23 15:33:03,146 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:33:03,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:33:03,146 INFO L158 Benchmark]: Toolchain (without parser) took 384060.14ms. Allocated memory was 69.2MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 38.7MB in the beginning and 1.4GB in the end (delta: -1.4GB). Peak memory consumption was 678.4MB. Max. memory is 16.1GB. [2022-11-23 15:33:03,147 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:33:03,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2388.94ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 38.5MB in the beginning and 37.7MB in the end (delta: 755.8kB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2022-11-23 15:33:03,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 324.45ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 37.7MB in the beginning and 78.4MB in the end (delta: -40.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-11-23 15:33:03,148 INFO L158 Benchmark]: Boogie Preprocessor took 348.03ms. Allocated memory is still 136.3MB. Free memory was 78.4MB in the beginning and 74.0MB in the end (delta: 4.4MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-11-23 15:33:03,148 INFO L158 Benchmark]: RCFGBuilder took 34848.92ms. Allocated memory was 136.3MB in the beginning and 710.9MB in the end (delta: 574.6MB). Free memory was 74.0MB in the beginning and 296.2MB in the end (delta: -222.2MB). Peak memory consumption was 437.6MB. Max. memory is 16.1GB. [2022-11-23 15:33:03,149 INFO L158 Benchmark]: TraceAbstraction took 346137.14ms. Allocated memory was 710.9MB in the beginning and 2.1GB in the end (delta: 1.4GB). Free memory was 295.2MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-11-23 15:33:03,149 INFO L158 Benchmark]: Witness Printer took 4.09ms. Allocated memory is still 2.1GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:33:03,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2388.94ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 38.5MB in the beginning and 37.7MB in the end (delta: 755.8kB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 324.45ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 37.7MB in the beginning and 78.4MB in the end (delta: -40.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 348.03ms. Allocated memory is still 136.3MB. Free memory was 78.4MB in the beginning and 74.0MB in the end (delta: 4.4MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * RCFGBuilder took 34848.92ms. Allocated memory was 136.3MB in the beginning and 710.9MB in the end (delta: 574.6MB). Free memory was 74.0MB in the beginning and 296.2MB in the end (delta: -222.2MB). Peak memory consumption was 437.6MB. Max. memory is 16.1GB. * TraceAbstraction took 346137.14ms. Allocated memory was 710.9MB in the beginning and 2.1GB in the end (delta: 1.4GB). Free memory was 295.2MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 4.09ms. Allocated memory is still 2.1GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 1.0MB). 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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5521] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=8, strings={120:0}, stringtab={121:0}, tmp___0=-2147483648, unknown-#in~size-unknown=8, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5521] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5521] tmp = ldv_zalloc(8UL) [L5522] ldvarg0 = (struct usb_ctrlrequest *)tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5523] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=1, strings={120:0}, stringtab={121:0}, tmp___0=-2147483648, unknown-#in~size-unknown=1, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5523] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5523] tmp___0 = ldv_zalloc(1UL) [L5524] ldvarg7 = (char *)tmp___0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5525] CALL, EXPR ldv_zalloc(16UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=16, strings={120:0}, stringtab={121:0}, tmp___0=-2147483648, unknown-#in~size-unknown=16, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5525] RET, EXPR ldv_zalloc(16UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5525] tmp___1 = ldv_zalloc(16UL) [L5526] ldvarg3 = (struct poll_table_struct *)tmp___1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5527] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=8, strings={120:0}, stringtab={121:0}, tmp___0=-2147483648, unknown-#in~size-unknown=8, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5527] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, 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={104:0}] [L5533] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=8, strings={120:0}, stringtab={121:0}, tmp___0=-2147483648, unknown-#in~size-unknown=8, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5533] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, 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={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=138, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, 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=138, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5537] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=1, strings={120:0}, stringtab={121:0}, tmp___0=-2147483648, unknown-#in~size-unknown=1, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5537] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=138, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, 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=138, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=137, ldvarg3={0:0}, ldvarg4=138, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, 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=138, tmp___7={0:0}, tmp___8=0, tmp___9=137, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=137, ldvarg3={0:0}, ldvarg4=138, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, 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=138, tmp___7={0:0}, tmp___8=0, tmp___9=137, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=137, ldvarg3={0:0}, ldvarg4=138, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, 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=138, tmp___7={0:0}, tmp___8=0, tmp___9=137, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5901] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, unknown-#in~size-unknown=120, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=120, strings={120:0}, stringtab={121:0}, tmp___0=-2147483648, unknown-#in~size-unknown=120, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5901] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5903] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5907] COND TRUE ldv_usb_gadget_class == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5911] ldv_usb_gadget_class = 1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5914] return (is_got); VAL [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5423] CALL, EXPR IS_ERR((void const *)usb_gadget_class) VAL [#in~ptr={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5736] long tmp ; VAL [#in~ptr={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5738] CALL, EXPR ldv_is_err(ptr) VAL [#in~ptr={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5861] return ((unsigned long )ptr > 2012UL); VAL [#in~ptr={0:0}, \result=0, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5738] RET, EXPR ldv_is_err(ptr) VAL [#in~ptr={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5738] tmp = ldv_is_err(ptr) [L5739] return (tmp); VAL [#in~ptr={0:0}, \result=0, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5423] RET, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5956] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, ret=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5851] COND TRUE ret <= 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, ret=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5855] return (ret); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, ret=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5956] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5956] is_reg = ldv_undef_int_nonpositive() [L5957] COND TRUE ! is_reg VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5958] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5962] COND TRUE ldv_usb_gadget_chrdev == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5966] ldv_usb_gadget_chrdev = 1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5969] return (is_reg); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5768] RET, EXPR ldv_register_chrdev_region() [L5768] tmp___0 = ldv_register_chrdev_region() [L5769] return (tmp___0); VAL [#in~ldv_func_arg1={103:0}, #in~ldv_func_arg4={93:0}, \result=0, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={103:0}, ldv_func_arg2=0, ldv_func_arg3=1, ldv_func_arg4={93:0}, ldv_func_res=139, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=139, tmp___0=0, unknown-#in~ldv_func_arg2-unknown=0, unknown-#in~ldv_func_arg3-unknown=1, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5991] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, ret=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5851] COND TRUE ret <= 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, ret=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5855] return (ret); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, ret=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5991] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5991] is_reg = ldv_undef_int_nonpositive() [L5992] COND TRUE ! is_reg VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5993] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5997] ldv_usb_gadget = 1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L6000] return (is_reg); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5789] RET, EXPR ldv_register_usb_gadget() [L5789] tmp___0 = ldv_register_usb_gadget() [L5790] return (tmp___0); VAL [#in~ldv_func_arg1={123:0}, \result=0, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={123:0}, ldv_func_res=140, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp=140, tmp___0=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, status=0, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5446] return (status); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, status=0, strings={120:0}, stringtab={121:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=137, ldvarg3={0:0}, ldvarg4=138, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, 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=138, tmp___7={0:0}, tmp___8=0, tmp___9=137, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5475] CALL, EXPR ldv_zalloc(1072UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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 [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, size=1072, strings={120:0}, stringtab={121:0}, tmp___0=-2147483648, unknown-#in~size-unknown=1072, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5475] RET, EXPR ldv_zalloc(1072UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5475] tmp = ldv_zalloc(1072UL) [L5476] printer_driver_group0 = (struct usb_gadget *)tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=137, ldvarg3={0:0}, ldvarg4=138, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, 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=138, tmp___7={0:0}, tmp___8=0, tmp___9=137, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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=137, ldvarg3={0:0}, ldvarg4=138, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, 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=138, tmp___7={0:0}, tmp___8=0, tmp___9=137, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [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={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5453] FCALL mutex_lock_nested(& usb_printer_gadget.lock_printer_io, 0U) VAL [__this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5454] CALL ldv_class_destroy_12(usb_gadget_class) [L5813] FCALL class_destroy(ldv_func_arg1) VAL [#in~ldv_func_arg1={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5814] CALL ldv_unregister_class() VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5940] COND FALSE !(ldv_usb_gadget == 0) VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5942] CALL ldv_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L3238] reach_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={107:0}, dev_qualifier={114:0}, device_desc={105:0}, driver_desc={102:0}, epnum=0, fs_ep_in_desc={109:0}, fs_ep_out_desc={110:0}, fs_printer_function={111:0}, g_printer_devno={103:0}, hs_ep_in_desc={112:0}, hs_ep_out_desc={113:0}, hs_printer_function={115:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={108:0}, 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={116:0}, otg_desc={106:0}, pnp_string={119:0}, printer_driver={123:0}, printer_driver_group0={0:0}, printer_io_operations={122:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={100:0}, product_desc={117:0}, qlen=10, ref_cnt=0, serial_num={118:0}, shortname={101:0}, strings={120:0}, stringtab={121:0}, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 67 procedures, 1246 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 345.7s, OverallIterations: 17, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 241.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 23485 SdHoareTripleChecker+Valid, 196.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23149 mSDsluCounter, 144927 SdHoareTripleChecker+Invalid, 187.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 109645 mSDsCounter, 2008 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5377 IncrementalHoareTripleChecker+Invalid, 7395 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2008 mSolverCounterUnsat, 35282 mSDtfsCounter, 5377 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1553 GetRequests, 1435 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 59.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30214occurred in iteration=6, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 15974 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5s SsaConstructionTime, 18.1s SatisfiabilityAnalysisTime, 54.2s InterpolantComputationTime, 1636 NumberOfCodeBlocks, 1636 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1488 ConstructedInterpolants, 0 QuantifiedInterpolants, 2796 SizeOfPredicates, 70 NumberOfNonLiveVariables, 22329 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 [2022-11-23 15:33:03,392 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-23 15:33:03,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a7cab96-a686-469d-b48a-be63b5ff125d/bin/utaipan-Q6hlc19bkW/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