./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 b5237d83 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_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.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_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-b5237d8 [2022-11-21 09:16:17,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:16:17,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:16:17,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:16:17,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:16:17,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:16:17,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:16:17,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:16:17,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:16:17,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:16:17,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:16:17,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:16:17,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:16:17,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:16:17,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:16:17,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:16:17,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:16:17,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:16:17,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:16:17,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:16:17,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:16:17,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:16:17,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:16:17,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:16:17,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:16:17,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:16:17,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:16:17,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:16:17,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:16:17,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:16:17,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:16:17,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:16:17,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:16:17,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:16:17,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:16:17,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:16:17,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:16:17,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:16:17,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:16:17,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:16:17,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:16:17,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 09:16:17,356 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:16:17,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:16:17,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:16:17,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:16:17,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:16:17,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:16:17,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:16:17,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:16:17,360 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:16:17,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:16:17,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:16:17,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:16:17,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:16:17,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:16:17,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:16:17,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:16:17,362 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:16:17,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:16:17,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:16:17,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:16:17,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:16:17,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:16:17,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:16:17,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:16:17,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:16:17,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:16:17,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:16:17,365 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:16:17,365 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:16:17,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:16:17,365 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_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2022-11-21 09:16:17,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:16:17,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:16:17,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:16:17,668 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:16:17,668 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:16:17,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-21 09:16:20,856 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:16:21,369 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:16:21,370 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-21 09:16:21,406 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/data/57cffeaa4/ef38ab0e478c44b084a84ed8fc50d3fc/FLAGf5e9019b2 [2022-11-21 09:16:21,426 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/data/57cffeaa4/ef38ab0e478c44b084a84ed8fc50d3fc [2022-11-21 09:16:21,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:16:21,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:16:21,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:16:21,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:16:21,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:16:21,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:16:21" (1/1) ... [2022-11-21 09:16:21,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6977c526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:21, skipping insertion in model container [2022-11-21 09:16:21,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:16:21" (1/1) ... [2022-11-21 09:16:21,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:16:21,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:16:22,434 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_c7204567-fff4-40cf-984b-9d2e12f735eb/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] [2022-11-21 09:16:23,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:16:23,100 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:16:23,220 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_c7204567-fff4-40cf-984b-9d2e12f735eb/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] [2022-11-21 09:16:23,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:16:23,490 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:16:23,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23 WrapperNode [2022-11-21 09:16:23,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:16:23,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:16:23,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:16:23,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:16:23,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:23,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:23,797 INFO L138 Inliner]: procedures = 203, calls = 1279, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 3473 [2022-11-21 09:16:23,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:16:23,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:16:23,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:16:23,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:16:23,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:23,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:23,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:23,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:23,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:23,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:23,978 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:23,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:24,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:16:24,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:16:24,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:16:24,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:16:24,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (1/1) ... [2022-11-21 09:16:24,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:16:24,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:16:24,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:16:24,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:16:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-11-21 09:16:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-11-21 09:16:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-21 09:16:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-21 09:16:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 09:16:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 09:16:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 09:16:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 09:16:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-11-21 09:16:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-11-21 09:16:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-11-21 09:16:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-11-21 09:16:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-11-21 09:16:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-11-21 09:16:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-21 09:16:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-21 09:16:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 09:16:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 09:16:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-11-21 09:16:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-11-21 09:16:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-11-21 09:16:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-11-21 09:16:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-21 09:16:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-21 09:16:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-11-21 09:16:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-11-21 09:16:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-21 09:16:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-21 09:16:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 09:16:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 09:16:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-11-21 09:16:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-11-21 09:16:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 09:16:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 09:16:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 09:16:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 09:16:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-21 09:16:24,108 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-21 09:16:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-11-21 09:16:24,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-11-21 09:16:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:16:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-21 09:16:24,109 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-21 09:16:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 09:16:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-11-21 09:16:24,110 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-11-21 09:16:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-11-21 09:16:24,110 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-11-21 09:16:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-21 09:16:24,111 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-21 09:16:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-21 09:16:24,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-21 09:16:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-21 09:16:24,111 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-21 09:16:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-21 09:16:24,112 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-21 09:16:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:16:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 09:16:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-11-21 09:16:24,113 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-11-21 09:16:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-21 09:16:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-21 09:16:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-21 09:16:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-21 09:16:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-21 09:16:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-21 09:16:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-21 09:16:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-21 09:16:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-21 09:16:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-21 09:16:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-11-21 09:16:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-11-21 09:16:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-21 09:16:24,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-21 09:16:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-21 09:16:24,117 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-21 09:16:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 09:16:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-21 09:16:24,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-21 09:16:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-21 09:16:24,118 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-21 09:16:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-21 09:16:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-21 09:16:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-21 09:16:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-21 09:16:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 09:16:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:16:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-11-21 09:16:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-11-21 09:16:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 09:16:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 09:16:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-11-21 09:16:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-11-21 09:16:24,122 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-21 09:16:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-21 09:16:24,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:16:24,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-11-21 09:16:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-11-21 09:16:24,122 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-11-21 09:16:24,123 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-11-21 09:16:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-11-21 09:16:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-11-21 09:16:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 09:16:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 09:16:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-11-21 09:16:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-11-21 09:16:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 09:16:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-21 09:16:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-11-21 09:16:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-11-21 09:16:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-11-21 09:16:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-11-21 09:16:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-11-21 09:16:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-21 09:16:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-21 09:16:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:16:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 09:16:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-21 09:16:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-11-21 09:16:24,130 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-11-21 09:16:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-11-21 09:16:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-11-21 09:16:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-21 09:16:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-21 09:16:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-21 09:16:24,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-21 09:16:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-21 09:16:24,135 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-21 09:16:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-11-21 09:16:24,140 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-11-21 09:16:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-21 09:16:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-21 09:16:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-21 09:16:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-21 09:16:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-11-21 09:16:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-11-21 09:16:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-11-21 09:16:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-11-21 09:16:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-21 09:16:24,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-21 09:16:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-11-21 09:16:24,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-11-21 09:16:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-21 09:16:24,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-21 09:16:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-11-21 09:16:24,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-11-21 09:16:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:16:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-21 09:16:24,143 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-21 09:16:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:16:24,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:16:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-21 09:16:24,144 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-21 09:16:24,879 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:16:24,900 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:16:25,184 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 09:16:44,837 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:16:44,862 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:16:44,862 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 09:16:44,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:16:44 BoogieIcfgContainer [2022-11-21 09:16:44,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:16:44,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:16:44,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:16:44,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:16:44,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:16:21" (1/3) ... [2022-11-21 09:16:44,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223390c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:16:44, skipping insertion in model container [2022-11-21 09:16:44,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:23" (2/3) ... [2022-11-21 09:16:44,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223390c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:16:44, skipping insertion in model container [2022-11-21 09:16:44,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:16:44" (3/3) ... [2022-11-21 09:16:44,879 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-21 09:16:44,898 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:16:44,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 09:16:45,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:16:45,011 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7019cb91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:16:45,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 09:16:45,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 1267 states, 876 states have (on average 1.384703196347032) internal successors, (1213), 919 states have internal predecessors, (1213), 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) [2022-11-21 09:16:45,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-21 09:16:45,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:16:45,043 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] [2022-11-21 09:16:45,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:16:45,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:45,047 INFO L85 PathProgramCache]: Analyzing trace with hash -995595429, now seen corresponding path program 1 times [2022-11-21 09:16:45,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:45,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201462785] [2022-11-21 09:16:45,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:45,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:16:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:45,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:16:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:46,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:16:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:46,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:16:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:46,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:16:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:46,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:16:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:46,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:16:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:46,120 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 09:16:46,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:46,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201462785] [2022-11-21 09:16:46,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201462785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:46,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:46,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:16:46,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222845856] [2022-11-21 09:16:46,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:46,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:16:46,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:46,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:16:46,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:16:46,188 INFO L87 Difference]: Start difference. First operand has 1267 states, 876 states have (on average 1.384703196347032) internal successors, (1213), 919 states have internal predecessors, (1213), 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 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-21 09:16:48,269 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 [] [2022-11-21 09:16:56,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:16:56,901 INFO L93 Difference]: Finished difference Result 4313 states and 6586 transitions. [2022-11-21 09:16:56,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:16:56,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 3 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 [2022-11-21 09:16:56,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:16:56,945 INFO L225 Difference]: With dead ends: 4313 [2022-11-21 09:16:56,945 INFO L226 Difference]: Without dead ends: 3032 [2022-11-21 09:16:56,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:16:56,961 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 3947 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 1917 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4265 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 4105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1917 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:16:56,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4265 Valid, 3574 Invalid, 4105 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1917 Valid, 2187 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-11-21 09:16:56,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2022-11-21 09:16:57,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2318. [2022-11-21 09:16:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1592 states have (on average 1.3574120603015076) internal successors, (2161), 1653 states have internal predecessors, (2161), 602 states have call successors, (602), 125 states have call predecessors, (602), 123 states have return successors, (590), 581 states have call predecessors, (590), 590 states have call successors, (590) [2022-11-21 09:16:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3353 transitions. [2022-11-21 09:16:57,262 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3353 transitions. Word has length 56 [2022-11-21 09:16:57,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:16:57,264 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 3353 transitions. [2022-11-21 09:16:57,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-21 09:16:57,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3353 transitions. [2022-11-21 09:16:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-21 09:16:57,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:16:57,271 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] [2022-11-21 09:16:57,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:16:57,271 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:16:57,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:57,272 INFO L85 PathProgramCache]: Analyzing trace with hash -799669199, now seen corresponding path program 1 times [2022-11-21 09:16:57,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:57,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430371413] [2022-11-21 09:16:57,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:57,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:57,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:16:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:57,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:16:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:57,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:16:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:57,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:16:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:57,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:16:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:16:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:57,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:16:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:57,850 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 09:16:57,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:57,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430371413] [2022-11-21 09:16:57,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430371413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:57,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:57,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:16:57,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357219954] [2022-11-21 09:16:57,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:57,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:16:57,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:57,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:16:57,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:16:57,854 INFO L87 Difference]: Start difference. First operand 2318 states and 3353 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-21 09:16:59,894 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 [] [2022-11-21 09:17:10,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:17:10,436 INFO L93 Difference]: Finished difference Result 8312 states and 12368 transitions. [2022-11-21 09:17:10,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:17:10,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 3 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 [2022-11-21 09:17:10,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:17:10,479 INFO L225 Difference]: With dead ends: 8312 [2022-11-21 09:17:10,479 INFO L226 Difference]: Without dead ends: 6009 [2022-11-21 09:17:10,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:17:10,490 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 3184 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 2777 mSolverCounterSat, 1070 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3499 SdHoareTripleChecker+Valid, 4363 SdHoareTripleChecker+Invalid, 3848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1070 IncrementalHoareTripleChecker+Valid, 2777 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:17:10,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3499 Valid, 4363 Invalid, 3848 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1070 Valid, 2777 Invalid, 1 Unknown, 0 Unchecked, 12.0s Time] [2022-11-21 09:17:10,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2022-11-21 09:17:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 4581. [2022-11-21 09:17:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4581 states, 3155 states have (on average 1.358795562599049) internal successors, (4287), 3268 states have internal predecessors, (4287), 1182 states have call successors, (1182), 247 states have call predecessors, (1182), 243 states have return successors, (1164), 1149 states have call predecessors, (1164), 1164 states have call successors, (1164) [2022-11-21 09:17:10,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 6633 transitions. [2022-11-21 09:17:10,757 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 6633 transitions. Word has length 57 [2022-11-21 09:17:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:17:10,758 INFO L495 AbstractCegarLoop]: Abstraction has 4581 states and 6633 transitions. [2022-11-21 09:17:10,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-21 09:17:10,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 6633 transitions. [2022-11-21 09:17:10,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-21 09:17:10,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:17:10,764 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] [2022-11-21 09:17:10,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:17:10,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:17:10,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:17:10,765 INFO L85 PathProgramCache]: Analyzing trace with hash 555911072, now seen corresponding path program 1 times [2022-11-21 09:17:10,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:17:10,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530953436] [2022-11-21 09:17:10,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:17:10,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:17:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:11,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:17:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:11,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:17:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:11,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:17:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:11,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:17:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:11,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:17:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:11,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:17:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:11,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 09:17:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:11,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 09:17:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:11,249 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 09:17:11,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:17:11,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530953436] [2022-11-21 09:17:11,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530953436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:17:11,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:17:11,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:17:11,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767962529] [2022-11-21 09:17:11,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:17:11,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:17:11,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:17:11,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:17:11,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:17:11,252 INFO L87 Difference]: Start difference. First operand 4581 states and 6633 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-21 09:17:13,292 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 [] [2022-11-21 09:17:15,345 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 [] [2022-11-21 09:17:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:17:23,420 INFO L93 Difference]: Finished difference Result 14969 states and 21969 transitions. [2022-11-21 09:17:23,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:17:23,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 3 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 59 [2022-11-21 09:17:23,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:17:23,490 INFO L225 Difference]: With dead ends: 14969 [2022-11-21 09:17:23,490 INFO L226 Difference]: Without dead ends: 10403 [2022-11-21 09:17:23,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:17:23,521 INFO L413 NwaCegarLoop]: 1744 mSDtfsCounter, 2259 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 818 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 818 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:17:23,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2530 Valid, 3599 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [818 Valid, 1884 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2022-11-21 09:17:23,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10403 states. [2022-11-21 09:17:24,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10403 to 8899. [2022-11-21 09:17:24,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 6122 states have (on average 1.3605031035609279) internal successors, (8329), 6330 states have internal predecessors, (8329), 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) [2022-11-21 09:17:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 12899 transitions. [2022-11-21 09:17:24,207 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 12899 transitions. Word has length 59 [2022-11-21 09:17:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:17:24,208 INFO L495 AbstractCegarLoop]: Abstraction has 8899 states and 12899 transitions. [2022-11-21 09:17:24,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-21 09:17:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 12899 transitions. [2022-11-21 09:17:24,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-21 09:17:24,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:17:24,213 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] [2022-11-21 09:17:24,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:17:24,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:17:24,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:17:24,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1208564619, now seen corresponding path program 1 times [2022-11-21 09:17:24,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:17:24,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906523946] [2022-11-21 09:17:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:17:24,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:17:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:17:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:24,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:17:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:24,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:17:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:24,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:17:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:24,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:17:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:24,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:17:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:24,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:17:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:24,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 09:17:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:24,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:17:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:24,832 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 09:17:24,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:17:24,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906523946] [2022-11-21 09:17:24,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906523946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:17:24,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:17:24,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:17:24,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714061042] [2022-11-21 09:17:24,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:17:24,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:17:24,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:17:24,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:17:24,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:17:24,836 INFO L87 Difference]: Start difference. First operand 8899 states and 12899 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 09:17:26,882 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 [] [2022-11-21 09:17:35,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:17:35,763 INFO L93 Difference]: Finished difference Result 32330 states and 48150 transitions. [2022-11-21 09:17:35,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:17:35,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 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 75 [2022-11-21 09:17:35,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:17:35,915 INFO L225 Difference]: With dead ends: 32330 [2022-11-21 09:17:35,915 INFO L226 Difference]: Without dead ends: 23443 [2022-11-21 09:17:35,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:17:35,966 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 3931 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 2197 mSolverCounterSat, 1883 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4248 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 4081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1883 IncrementalHoareTripleChecker+Valid, 2197 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-21 09:17:35,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4248 Valid, 3638 Invalid, 4081 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1883 Valid, 2197 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-11-21 09:17:35,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23443 states. [2022-11-21 09:17:37,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23443 to 17722. [2022-11-21 09:17:37,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17722 states, 12205 states have (on average 1.3609995903318313) internal successors, (16611), 12609 states have internal predecessors, (16611), 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) [2022-11-21 09:17:37,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17722 states to 17722 states and 25707 transitions. [2022-11-21 09:17:37,145 INFO L78 Accepts]: Start accepts. Automaton has 17722 states and 25707 transitions. Word has length 75 [2022-11-21 09:17:37,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:17:37,147 INFO L495 AbstractCegarLoop]: Abstraction has 17722 states and 25707 transitions. [2022-11-21 09:17:37,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 09:17:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 17722 states and 25707 transitions. [2022-11-21 09:17:37,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-21 09:17:37,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:17:37,153 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] [2022-11-21 09:17:37,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:17:37,154 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:17:37,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:17:37,154 INFO L85 PathProgramCache]: Analyzing trace with hash -955211715, now seen corresponding path program 1 times [2022-11-21 09:17:37,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:17:37,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026026328] [2022-11-21 09:17:37,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:17:37,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:17:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:39,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:17:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:39,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:17:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:17:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:17:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:17:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:39,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:17:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:17:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:39,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:17:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:40,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:17:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:17:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 09:17:40,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:17:40,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026026328] [2022-11-21 09:17:40,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026026328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:17:40,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:17:40,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-21 09:17:40,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691321878] [2022-11-21 09:17:40,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:17:40,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 09:17:40,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:17:40,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 09:17:40,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-11-21 09:17:40,181 INFO L87 Difference]: Start difference. First operand 17722 states and 25707 transitions. Second operand has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-21 09:17:42,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:17:44,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:18:21,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:18:21,082 INFO L93 Difference]: Finished difference Result 61610 states and 92333 transitions. [2022-11-21 09:18:21,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-21 09:18:21,083 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 4 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 [2022-11-21 09:18:21,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:18:21,338 INFO L225 Difference]: With dead ends: 61610 [2022-11-21 09:18:21,338 INFO L226 Difference]: Without dead ends: 43903 [2022-11-21 09:18:21,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2022-11-21 09:18:21,410 INFO L413 NwaCegarLoop]: 1741 mSDtfsCounter, 4194 mSDsluCounter, 16077 mSDsCounter, 0 mSdLazyCounter, 14320 mSolverCounterSat, 1498 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4585 SdHoareTripleChecker+Valid, 17818 SdHoareTripleChecker+Invalid, 15820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1498 IncrementalHoareTripleChecker+Valid, 14320 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:18:21,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4585 Valid, 17818 Invalid, 15820 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1498 Valid, 14320 Invalid, 2 Unknown, 0 Unchecked, 37.6s Time] [2022-11-21 09:18:21,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43903 states. [2022-11-21 09:18:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43903 to 30830. [2022-11-21 09:18:23,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30830 states, 21219 states have (on average 1.3616098779395824) internal successors, (28892), 21930 states have internal predecessors, (28892), 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) [2022-11-21 09:18:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30830 states to 30830 states and 44778 transitions. [2022-11-21 09:18:24,004 INFO L78 Accepts]: Start accepts. Automaton has 30830 states and 44778 transitions. Word has length 77 [2022-11-21 09:18:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:18:24,005 INFO L495 AbstractCegarLoop]: Abstraction has 30830 states and 44778 transitions. [2022-11-21 09:18:24,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-21 09:18:24,005 INFO L276 IsEmpty]: Start isEmpty. Operand 30830 states and 44778 transitions. [2022-11-21 09:18:24,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-21 09:18:24,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:18:24,009 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] [2022-11-21 09:18:24,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:18:24,009 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:18:24,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:18:24,010 INFO L85 PathProgramCache]: Analyzing trace with hash 205775273, now seen corresponding path program 1 times [2022-11-21 09:18:24,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:18:24,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608299733] [2022-11-21 09:18:24,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:18:24,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:18:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:18:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:18:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:18:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:18:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:18:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:18:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:18:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:18:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:18:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:18:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 09:18:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:24,540 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 09:18:24,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:18:24,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608299733] [2022-11-21 09:18:24,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608299733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:18:24,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:18:24,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:18:24,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874521116] [2022-11-21 09:18:24,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:18:24,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:18:24,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:18:24,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:18:24,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:18:24,543 INFO L87 Difference]: Start difference. First operand 30830 states and 44778 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 09:18:26,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:18:28,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:18:39,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:18:39,087 INFO L93 Difference]: Finished difference Result 71564 states and 106123 transitions. [2022-11-21 09:18:39,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:18:39,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 5 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 92 [2022-11-21 09:18:39,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:18:39,306 INFO L225 Difference]: With dead ends: 71564 [2022-11-21 09:18:39,306 INFO L226 Difference]: Without dead ends: 40749 [2022-11-21 09:18:39,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:18:39,414 INFO L413 NwaCegarLoop]: 2491 mSDtfsCounter, 2860 mSDsluCounter, 2904 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 1240 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3172 SdHoareTripleChecker+Valid, 5395 SdHoareTripleChecker+Invalid, 4015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1240 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:18:39,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3172 Valid, 5395 Invalid, 4015 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1240 Valid, 2773 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2022-11-21 09:18:39,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40749 states. [2022-11-21 09:18:41,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40749 to 30811. [2022-11-21 09:18:41,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30811 states, 21200 states have (on average 1.361179245283019) internal successors, (28857), 21913 states have internal predecessors, (28857), 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) [2022-11-21 09:18:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30811 states to 30811 states and 44743 transitions. [2022-11-21 09:18:41,700 INFO L78 Accepts]: Start accepts. Automaton has 30811 states and 44743 transitions. Word has length 92 [2022-11-21 09:18:41,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:18:41,700 INFO L495 AbstractCegarLoop]: Abstraction has 30811 states and 44743 transitions. [2022-11-21 09:18:41,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 09:18:41,701 INFO L276 IsEmpty]: Start isEmpty. Operand 30811 states and 44743 transitions. [2022-11-21 09:18:41,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-21 09:18:41,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:18:41,705 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, 1] [2022-11-21 09:18:41,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:18:41,705 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:18:41,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:18:41,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1283807230, now seen corresponding path program 1 times [2022-11-21 09:18:41,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:18:41,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751144522] [2022-11-21 09:18:41,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:18:41,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:18:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:18:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:18:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:18:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:18:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:18:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:18:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:18:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:18:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 09:18:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:18:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 09:18:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:45,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 09:18:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:18:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:18:46,400 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-21 09:18:46,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:18:46,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751144522] [2022-11-21 09:18:46,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751144522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:18:46,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:18:46,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 09:18:46,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816557950] [2022-11-21 09:18:46,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:18:46,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-21 09:18:46,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:18:46,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-21 09:18:46,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-11-21 09:18:46,403 INFO L87 Difference]: Start difference. First operand 30811 states and 44743 transitions. Second operand has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 12 states have internal predecessors, (53), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-21 09:18:48,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:19:31,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:19:31,302 INFO L93 Difference]: Finished difference Result 91961 states and 137380 transitions. [2022-11-21 09:19:31,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-21 09:19:31,302 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 12 states have internal predecessors, (53), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 98 [2022-11-21 09:19:31,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:19:31,760 INFO L225 Difference]: With dead ends: 91961 [2022-11-21 09:19:31,760 INFO L226 Difference]: Without dead ends: 61165 [2022-11-21 09:19:31,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=193, Invalid=1367, Unknown=0, NotChecked=0, Total=1560 [2022-11-21 09:19:31,856 INFO L413 NwaCegarLoop]: 1755 mSDtfsCounter, 4662 mSDsluCounter, 17959 mSDsCounter, 0 mSdLazyCounter, 15607 mSolverCounterSat, 1723 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5044 SdHoareTripleChecker+Valid, 19714 SdHoareTripleChecker+Invalid, 17331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1723 IncrementalHoareTripleChecker+Valid, 15607 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:19:31,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5044 Valid, 19714 Invalid, 17331 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1723 Valid, 15607 Invalid, 1 Unknown, 0 Unchecked, 39.3s Time] [2022-11-21 09:19:31,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61165 states. [2022-11-21 09:19:34,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61165 to 36326. [2022-11-21 09:19:34,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36326 states, 24995 states have (on average 1.3610722144428886) internal successors, (34020), 25837 states have internal predecessors, (34020), 9350 states have call successors, (9350), 1976 states have call predecessors, (9350), 1980 states have return successors, (9378), 9205 states have call predecessors, (9378), 9330 states have call successors, (9378) [2022-11-21 09:19:34,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36326 states to 36326 states and 52748 transitions. [2022-11-21 09:19:34,909 INFO L78 Accepts]: Start accepts. Automaton has 36326 states and 52748 transitions. Word has length 98 [2022-11-21 09:19:34,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:19:34,910 INFO L495 AbstractCegarLoop]: Abstraction has 36326 states and 52748 transitions. [2022-11-21 09:19:34,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 12 states have internal predecessors, (53), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-21 09:19:34,911 INFO L276 IsEmpty]: Start isEmpty. Operand 36326 states and 52748 transitions. [2022-11-21 09:19:34,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-21 09:19:34,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:19:34,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:19:34,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:19:34,916 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:19:34,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:19:34,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2128064811, now seen corresponding path program 1 times [2022-11-21 09:19:34,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:19:34,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666095698] [2022-11-21 09:19:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:19:34,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:19:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:19:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:37,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:19:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:37,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:19:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:37,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:19:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:37,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:19:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:37,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:19:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:38,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:19:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:19:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 09:19:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:19:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:38,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 09:19:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:38,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 09:19:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:19:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:38,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 09:19:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:38,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 09:19:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:19:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-21 09:19:38,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:19:38,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666095698] [2022-11-21 09:19:38,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666095698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:19:38,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:19:38,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 09:19:38,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579547834] [2022-11-21 09:19:38,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:19:38,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-21 09:19:38,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:19:38,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-21 09:19:38,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-11-21 09:19:38,767 INFO L87 Difference]: Start difference. First operand 36326 states and 52748 transitions. Second operand has 17 states, 15 states have (on average 4.0) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-21 09:19:40,812 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 [] [2022-11-21 09:19:42,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:19:44,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:20:38,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:20:38,988 INFO L93 Difference]: Finished difference Result 78577 states and 116404 transitions. [2022-11-21 09:20:38,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-21 09:20:38,989 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.0) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 110 [2022-11-21 09:20:38,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:20:39,175 INFO L225 Difference]: With dead ends: 78577 [2022-11-21 09:20:39,175 INFO L226 Difference]: Without dead ends: 42266 [2022-11-21 09:20:39,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=188, Invalid=1294, Unknown=0, NotChecked=0, Total=1482 [2022-11-21 09:20:39,280 INFO L413 NwaCegarLoop]: 2658 mSDtfsCounter, 3208 mSDsluCounter, 28712 mSDsCounter, 0 mSdLazyCounter, 19804 mSolverCounterSat, 1205 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3534 SdHoareTripleChecker+Valid, 31370 SdHoareTripleChecker+Invalid, 21012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1205 IncrementalHoareTripleChecker+Valid, 19804 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:20:39,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3534 Valid, 31370 Invalid, 21012 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1205 Valid, 19804 Invalid, 3 Unknown, 0 Unchecked, 54.6s Time] [2022-11-21 09:20:39,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42266 states. [2022-11-21 09:20:42,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42266 to 31693. [2022-11-21 09:20:42,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31693 states, 21782 states have (on average 1.3618584152052153) internal successors, (29664), 22517 states have internal predecessors, (29664), 8183 states have call successors, (8183), 1722 states have call predecessors, (8183), 1727 states have return successors, (8213), 8062 states have call predecessors, (8213), 8171 states have call successors, (8213) [2022-11-21 09:20:42,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31693 states to 31693 states and 46060 transitions. [2022-11-21 09:20:42,312 INFO L78 Accepts]: Start accepts. Automaton has 31693 states and 46060 transitions. Word has length 110 [2022-11-21 09:20:42,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:20:42,312 INFO L495 AbstractCegarLoop]: Abstraction has 31693 states and 46060 transitions. [2022-11-21 09:20:42,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.0) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-21 09:20:42,313 INFO L276 IsEmpty]: Start isEmpty. Operand 31693 states and 46060 transitions. [2022-11-21 09:20:42,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-21 09:20:42,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:20:42,319 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] [2022-11-21 09:20:42,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:20:42,319 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:20:42,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:20:42,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1772420121, now seen corresponding path program 1 times [2022-11-21 09:20:42,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:20:42,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949887844] [2022-11-21 09:20:42,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:20:42,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:20:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:20:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:20:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:20:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:20:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:20:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:20:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:20:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:20:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:20:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:20:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 09:20:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 09:20:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:20:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 09:20:43,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:20:43,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949887844] [2022-11-21 09:20:43,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949887844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:20:43,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:20:43,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 09:20:43,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027682270] [2022-11-21 09:20:43,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:20:43,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 09:20:43,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:20:43,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 09:20:43,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:20:43,286 INFO L87 Difference]: Start difference. First operand 31693 states and 46060 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 09:20:45,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:20:47,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:21:19,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:21:19,248 INFO L93 Difference]: Finished difference Result 68806 states and 102137 transitions. [2022-11-21 09:21:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 09:21:19,249 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 5 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 104 [2022-11-21 09:21:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:21:19,518 INFO L225 Difference]: With dead ends: 68806 [2022-11-21 09:21:19,519 INFO L226 Difference]: Without dead ends: 37128 [2022-11-21 09:21:19,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:21:19,614 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 3495 mSDsluCounter, 3613 mSDsCounter, 0 mSdLazyCounter, 10102 mSolverCounterSat, 1417 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3752 SdHoareTripleChecker+Valid, 4506 SdHoareTripleChecker+Invalid, 11521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1417 IncrementalHoareTripleChecker+Valid, 10102 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2022-11-21 09:21:19,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3752 Valid, 4506 Invalid, 11521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1417 Valid, 10102 Invalid, 2 Unknown, 0 Unchecked, 31.7s Time] [2022-11-21 09:21:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37128 states. [2022-11-21 09:21:21,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37128 to 25175. [2022-11-21 09:21:21,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25175 states, 17303 states have (on average 1.3613246257874356) internal successors, (23555), 17884 states have internal predecessors, (23555), 6495 states have call successors, (6495), 1374 states have call predecessors, (6495), 1376 states have return successors, (6518), 6399 states have call predecessors, (6518), 6485 states have call successors, (6518) [2022-11-21 09:21:21,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25175 states to 25175 states and 36568 transitions. [2022-11-21 09:21:21,990 INFO L78 Accepts]: Start accepts. Automaton has 25175 states and 36568 transitions. Word has length 104 [2022-11-21 09:21:21,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:21:21,990 INFO L495 AbstractCegarLoop]: Abstraction has 25175 states and 36568 transitions. [2022-11-21 09:21:21,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 09:21:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 25175 states and 36568 transitions. [2022-11-21 09:21:21,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-21 09:21:21,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:21:21,997 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] [2022-11-21 09:21:21,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:21:21,998 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:21:21,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:21:21,998 INFO L85 PathProgramCache]: Analyzing trace with hash 986845812, now seen corresponding path program 1 times [2022-11-21 09:21:21,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:21:21,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418234756] [2022-11-21 09:21:21,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:21:21,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:21:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:22,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:21:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:22,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:21:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:22,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:21:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:22,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:21:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:22,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:21:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:21:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:23,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:21:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:23,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:21:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:23,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:21:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:23,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:21:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:23,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 09:21:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:21:23,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:21:23,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418234756] [2022-11-21 09:21:23,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418234756] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:21:23,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575474621] [2022-11-21 09:21:23,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:21:23,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:21:23,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:21:23,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:21:23,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 09:21:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:24,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 2415 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-21 09:21:24,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:21:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 09:21:24,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:21:24,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575474621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:21:24,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:21:24,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-11-21 09:21:24,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45034041] [2022-11-21 09:21:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:21:24,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:21:24,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:21:24,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:21:24,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-21 09:21:24,605 INFO L87 Difference]: Start difference. First operand 25175 states and 36568 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) [2022-11-21 09:21:26,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:21:26,973 INFO L93 Difference]: Finished difference Result 26316 states and 38378 transitions. [2022-11-21 09:21:26,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:21:26,973 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 [2022-11-21 09:21:26,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:21:27,036 INFO L225 Difference]: With dead ends: 26316 [2022-11-21 09:21:27,036 INFO L226 Difference]: Without dead ends: 15395 [2022-11-21 09:21:27,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-11-21 09:21:27,063 INFO L413 NwaCegarLoop]: 2088 mSDtfsCounter, 1469 mSDsluCounter, 7780 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 9868 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:21:27,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 9868 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 09:21:27,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15395 states. [2022-11-21 09:21:28,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15395 to 14314. [2022-11-21 09:21:28,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14314 states, 9843 states have (on average 1.3590368790003047) internal successors, (13377), 10171 states have internal predecessors, (13377), 3682 states have call successors, (3682), 787 states have call predecessors, (3682), 788 states have return successors, (3692), 3628 states have call predecessors, (3692), 3674 states have call successors, (3692) [2022-11-21 09:21:28,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14314 states to 14314 states and 20751 transitions. [2022-11-21 09:21:28,935 INFO L78 Accepts]: Start accepts. Automaton has 14314 states and 20751 transitions. Word has length 104 [2022-11-21 09:21:28,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:21:28,936 INFO L495 AbstractCegarLoop]: Abstraction has 14314 states and 20751 transitions. [2022-11-21 09:21:28,936 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) [2022-11-21 09:21:28,936 INFO L276 IsEmpty]: Start isEmpty. Operand 14314 states and 20751 transitions. [2022-11-21 09:21:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-21 09:21:28,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:21:28,944 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] [2022-11-21 09:21:28,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-21 09:21:29,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 09:21:29,155 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:21:29,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:21:29,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1047354222, now seen corresponding path program 1 times [2022-11-21 09:21:29,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:21:29,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001200480] [2022-11-21 09:21:29,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:21:29,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:21:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:21:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:21:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:21:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:21:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:21:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:21:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:21:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:21:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:21:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:21:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 09:21:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 09:21:30,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:21:30,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001200480] [2022-11-21 09:21:30,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001200480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:21:30,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:21:30,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 09:21:30,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990810087] [2022-11-21 09:21:30,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:21:30,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 09:21:30,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:21:30,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 09:21:30,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:21:30,475 INFO L87 Difference]: Start difference. First operand 14314 states and 20751 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-21 09:21:32,523 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 [] [2022-11-21 09:21:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:21:53,492 INFO L93 Difference]: Finished difference Result 19947 states and 30161 transitions. [2022-11-21 09:21:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 09:21:53,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2022-11-21 09:21:53,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:21:53,557 INFO L225 Difference]: With dead ends: 19947 [2022-11-21 09:21:53,557 INFO L226 Difference]: Without dead ends: 15588 [2022-11-21 09:21:53,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-21 09:21:53,576 INFO L413 NwaCegarLoop]: 1810 mSDtfsCounter, 2451 mSDsluCounter, 11982 mSDsCounter, 0 mSdLazyCounter, 7452 mSolverCounterSat, 1045 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 13792 SdHoareTripleChecker+Invalid, 8498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1045 IncrementalHoareTripleChecker+Valid, 7452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:21:53,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2623 Valid, 13792 Invalid, 8498 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1045 Valid, 7452 Invalid, 1 Unknown, 0 Unchecked, 20.4s Time] [2022-11-21 09:21:53,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15588 states. [2022-11-21 09:21:54,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15588 to 9982. [2022-11-21 09:21:54,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9982 states, 6867 states have (on average 1.3566331731469345) internal successors, (9316), 7096 states have internal predecessors, (9316), 2561 states have call successors, (2561), 553 states have call predecessors, (2561), 553 states have return successors, (2565), 2521 states have call predecessors, (2565), 2553 states have call successors, (2565) [2022-11-21 09:21:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9982 states to 9982 states and 14442 transitions. [2022-11-21 09:21:54,632 INFO L78 Accepts]: Start accepts. Automaton has 9982 states and 14442 transitions. Word has length 107 [2022-11-21 09:21:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:21:54,633 INFO L495 AbstractCegarLoop]: Abstraction has 9982 states and 14442 transitions. [2022-11-21 09:21:54,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-21 09:21:54,633 INFO L276 IsEmpty]: Start isEmpty. Operand 9982 states and 14442 transitions. [2022-11-21 09:21:54,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-21 09:21:54,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:21:54,640 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] [2022-11-21 09:21:54,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 09:21:54,640 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:21:54,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:21:54,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1809682982, now seen corresponding path program 1 times [2022-11-21 09:21:54,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:21:54,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978154550] [2022-11-21 09:21:54,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:21:54,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:21:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:21:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:21:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:21:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:21:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:21:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:21:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:21:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:21:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:21:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:21:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 09:21:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:21:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:21:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-21 09:21:55,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:21:55,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978154550] [2022-11-21 09:21:55,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978154550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:21:55,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:21:55,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 09:21:55,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93772072] [2022-11-21 09:21:55,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:21:55,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 09:21:55,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:21:55,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 09:21:55,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:21:55,577 INFO L87 Difference]: Start difference. First operand 9982 states and 14442 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 09:21:57,619 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 [] [2022-11-21 09:21:59,668 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 [] [2022-11-21 09:22:14,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:22:14,070 INFO L93 Difference]: Finished difference Result 23137 states and 34200 transitions. [2022-11-21 09:22:14,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:22:14,071 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 4 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 110 [2022-11-21 09:22:14,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:22:14,122 INFO L225 Difference]: With dead ends: 23137 [2022-11-21 09:22:14,122 INFO L226 Difference]: Without dead ends: 13170 [2022-11-21 09:22:14,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:22:14,161 INFO L413 NwaCegarLoop]: 1656 mSDtfsCounter, 2122 mSDsluCounter, 6530 mSDsCounter, 0 mSdLazyCounter, 4503 mSolverCounterSat, 883 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 8186 SdHoareTripleChecker+Invalid, 5388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 883 IncrementalHoareTripleChecker+Valid, 4503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:22:14,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 8186 Invalid, 5388 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [883 Valid, 4503 Invalid, 2 Unknown, 0 Unchecked, 16.6s Time] [2022-11-21 09:22:14,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13170 states. [2022-11-21 09:22:15,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13170 to 9964. [2022-11-21 09:22:15,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9964 states, 6855 states have (on average 1.3566739606126914) internal successors, (9300), 7084 states have internal predecessors, (9300), 2557 states have call successors, (2557), 549 states have call predecessors, (2557), 551 states have return successors, (2561), 2519 states have call predecessors, (2561), 2549 states have call successors, (2561) [2022-11-21 09:22:15,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9964 states to 9964 states and 14418 transitions. [2022-11-21 09:22:15,226 INFO L78 Accepts]: Start accepts. Automaton has 9964 states and 14418 transitions. Word has length 110 [2022-11-21 09:22:15,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:22:15,226 INFO L495 AbstractCegarLoop]: Abstraction has 9964 states and 14418 transitions. [2022-11-21 09:22:15,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 09:22:15,227 INFO L276 IsEmpty]: Start isEmpty. Operand 9964 states and 14418 transitions. [2022-11-21 09:22:15,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-21 09:22:15,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:22:15,234 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] [2022-11-21 09:22:15,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 09:22:15,234 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:22:15,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:22:15,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1697241715, now seen corresponding path program 1 times [2022-11-21 09:22:15,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:22:15,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140772854] [2022-11-21 09:22:15,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:22:15,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:22:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:15,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:22:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:22:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:15,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:22:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:22:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:15,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:22:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:15,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:22:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:16,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:22:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:16,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:22:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:16,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:22:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:16,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:22:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:16,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 09:22:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:16,038 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-21 09:22:16,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:22:16,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140772854] [2022-11-21 09:22:16,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140772854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:22:16,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:22:16,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:22:16,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526001150] [2022-11-21 09:22:16,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:22:16,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:22:16,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:22:16,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:22:16,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:22:16,041 INFO L87 Difference]: Start difference. First operand 9964 states and 14418 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-21 09:22:18,092 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 [] [2022-11-21 09:22:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:22:28,126 INFO L93 Difference]: Finished difference Result 18897 states and 27773 transitions. [2022-11-21 09:22:28,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 09:22:28,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (12), 4 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 [2022-11-21 09:22:28,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:22:28,157 INFO L225 Difference]: With dead ends: 18897 [2022-11-21 09:22:28,157 INFO L226 Difference]: Without dead ends: 8948 [2022-11-21 09:22:28,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-21 09:22:28,177 INFO L413 NwaCegarLoop]: 1505 mSDtfsCounter, 3243 mSDsluCounter, 3343 mSDsCounter, 0 mSdLazyCounter, 2645 mSolverCounterSat, 1364 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3478 SdHoareTripleChecker+Valid, 4848 SdHoareTripleChecker+Invalid, 4010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 2645 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:22:28,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3478 Valid, 4848 Invalid, 4010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1364 Valid, 2645 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-11-21 09:22:28,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8948 states. [2022-11-21 09:22:28,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8948 to 6808. [2022-11-21 09:22:28,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6808 states, 4683 states have (on average 1.3497757847533631) internal successors, (6321), 4840 states have internal predecessors, (6321), 1735 states have call successors, (1735), 387 states have call predecessors, (1735), 389 states have return successors, (1733), 1706 states have call predecessors, (1733), 1727 states have call successors, (1733) [2022-11-21 09:22:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6808 states to 6808 states and 9789 transitions. [2022-11-21 09:22:28,984 INFO L78 Accepts]: Start accepts. Automaton has 6808 states and 9789 transitions. Word has length 109 [2022-11-21 09:22:28,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:22:28,985 INFO L495 AbstractCegarLoop]: Abstraction has 6808 states and 9789 transitions. [2022-11-21 09:22:28,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-21 09:22:28,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6808 states and 9789 transitions. [2022-11-21 09:22:28,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-21 09:22:28,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:22:28,992 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-21 09:22:28,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 09:22:28,992 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:22:28,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:22:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash -442303172, now seen corresponding path program 1 times [2022-11-21 09:22:28,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:22:28,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976673106] [2022-11-21 09:22:28,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:22:28,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:22:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:31,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:22:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:22:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:31,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:22:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:31,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:22:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:31,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:22:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:22:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:31,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:22:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:22:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:31,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 09:22:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:32,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:22:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:32,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 09:22:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:32,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 09:22:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:32,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:22:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:32,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 09:22:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:32,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 09:22:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:32,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 09:22:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:32,508 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-21 09:22:32,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:22:32,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976673106] [2022-11-21 09:22:32,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976673106] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:22:32,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235688042] [2022-11-21 09:22:32,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:22:32,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:22:32,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:22:32,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:22:32,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 09:22:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:37,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 2452 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-21 09:22:37,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:22:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-21 09:22:38,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:22:38,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235688042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:22:38,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:22:38,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [16] total 21 [2022-11-21 09:22:38,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135865162] [2022-11-21 09:22:38,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:22:38,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 09:22:38,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:22:38,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 09:22:38,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2022-11-21 09:22:38,365 INFO L87 Difference]: Start difference. First operand 6808 states and 9789 transitions. Second operand has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 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) [2022-11-21 09:22:41,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:22:41,471 INFO L93 Difference]: Finished difference Result 10986 states and 15890 transitions. [2022-11-21 09:22:41,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 09:22:41,472 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 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 119 [2022-11-21 09:22:41,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:22:41,496 INFO L225 Difference]: With dead ends: 10986 [2022-11-21 09:22:41,496 INFO L226 Difference]: Without dead ends: 5245 [2022-11-21 09:22:41,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 140 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2022-11-21 09:22:41,509 INFO L413 NwaCegarLoop]: 2399 mSDtfsCounter, 442 mSDsluCounter, 27845 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 30244 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:22:41,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 30244 Invalid, 444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [117 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-21 09:22:41,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5245 states. [2022-11-21 09:22:42,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5245 to 4579. [2022-11-21 09:22:42,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4579 states, 3154 states have (on average 1.3459099556119214) internal successors, (4245), 3256 states have internal predecessors, (4245), 1162 states have call successors, (1162), 263 states have call predecessors, (1162), 262 states have return successors, (1158), 1143 states have call predecessors, (1158), 1155 states have call successors, (1158) [2022-11-21 09:22:42,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4579 states to 4579 states and 6565 transitions. [2022-11-21 09:22:42,111 INFO L78 Accepts]: Start accepts. Automaton has 4579 states and 6565 transitions. Word has length 119 [2022-11-21 09:22:42,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:22:42,111 INFO L495 AbstractCegarLoop]: Abstraction has 4579 states and 6565 transitions. [2022-11-21 09:22:42,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 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) [2022-11-21 09:22:42,112 INFO L276 IsEmpty]: Start isEmpty. Operand 4579 states and 6565 transitions. [2022-11-21 09:22:42,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-21 09:22:42,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:22:42,118 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] [2022-11-21 09:22:42,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 09:22:42,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-21 09:22:42,331 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:22:42,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:22:42,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1769359958, now seen corresponding path program 1 times [2022-11-21 09:22:42,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:22:42,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198971134] [2022-11-21 09:22:42,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:22:42,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:22:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:22:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:22:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:22:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:22:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:22:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:22:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:22:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:22:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:22:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:22:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 09:22:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 09:22:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 09:22:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-21 09:22:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:22:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-21 09:22:42,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:22:42,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198971134] [2022-11-21 09:22:42,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198971134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:22:42,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:22:42,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 09:22:42,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901733983] [2022-11-21 09:22:42,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:22:42,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:22:42,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:22:42,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:22:42,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:22:42,905 INFO L87 Difference]: Start difference. First operand 4579 states and 6565 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 09:22:44,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:22:46,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:22:49,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:23:12,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:23:12,802 INFO L93 Difference]: Finished difference Result 6003 states and 8947 transitions. [2022-11-21 09:23:12,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 09:23:12,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (16), 6 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 120 [2022-11-21 09:23:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:23:12,832 INFO L225 Difference]: With dead ends: 6003 [2022-11-21 09:23:12,832 INFO L226 Difference]: Without dead ends: 6000 [2022-11-21 09:23:12,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:23:12,837 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 4068 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 6668 mSolverCounterSat, 2499 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4325 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 9170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2499 IncrementalHoareTripleChecker+Valid, 6668 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:23:12,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4325 Valid, 1769 Invalid, 9170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2499 Valid, 6668 Invalid, 3 Unknown, 0 Unchecked, 28.3s Time] [2022-11-21 09:23:12,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2022-11-21 09:23:13,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 4578. [2022-11-21 09:23:13,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4578 states, 3154 states have (on average 1.3449587824984146) internal successors, (4242), 3255 states have internal predecessors, (4242), 1161 states have call successors, (1161), 263 states have call predecessors, (1161), 262 states have return successors, (1158), 1143 states have call predecessors, (1158), 1155 states have call successors, (1158) [2022-11-21 09:23:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4578 states to 4578 states and 6561 transitions. [2022-11-21 09:23:13,329 INFO L78 Accepts]: Start accepts. Automaton has 4578 states and 6561 transitions. Word has length 120 [2022-11-21 09:23:13,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:23:13,329 INFO L495 AbstractCegarLoop]: Abstraction has 4578 states and 6561 transitions. [2022-11-21 09:23:13,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 09:23:13,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4578 states and 6561 transitions. [2022-11-21 09:23:13,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-21 09:23:13,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:23:13,334 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] [2022-11-21 09:23:13,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 09:23:13,335 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:23:13,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:23:13,335 INFO L85 PathProgramCache]: Analyzing trace with hash 809074741, now seen corresponding path program 1 times [2022-11-21 09:23:13,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:23:13,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694871704] [2022-11-21 09:23:13,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:23:13,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:23:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:23:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:23:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:23:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:23:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:23:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:23:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:23:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:23:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:23:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:23:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 09:23:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 09:23:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-21 09:23:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 09:23:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 09:23:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:23:14,654 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-21 09:23:14,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:23:14,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694871704] [2022-11-21 09:23:14,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694871704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:23:14,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:23:14,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-21 09:23:14,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334243839] [2022-11-21 09:23:14,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:23:14,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 09:23:14,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:23:14,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 09:23:14,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2022-11-21 09:23:14,657 INFO L87 Difference]: Start difference. First operand 4578 states and 6561 transitions. Second operand has 15 states, 15 states have (on average 4.8) internal successors, (72), 11 states have internal predecessors, (72), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 09:23:16,699 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 [] [2022-11-21 09:23:18,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:23:20,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:24:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:24:02,572 INFO L93 Difference]: Finished difference Result 9536 states and 13971 transitions. [2022-11-21 09:24:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 09:24:02,572 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.8) internal successors, (72), 11 states have internal predecessors, (72), 3 states have call successors, (17), 5 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 124 [2022-11-21 09:24:02,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:24:02,591 INFO L225 Difference]: With dead ends: 9536 [2022-11-21 09:24:02,591 INFO L226 Difference]: Without dead ends: 5991 [2022-11-21 09:24:02,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2022-11-21 09:24:02,599 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 2697 mSDsluCounter, 5619 mSDsCounter, 0 mSdLazyCounter, 16774 mSolverCounterSat, 1246 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2962 SdHoareTripleChecker+Valid, 6289 SdHoareTripleChecker+Invalid, 18023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 16774 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:24:02,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2962 Valid, 6289 Invalid, 18023 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1246 Valid, 16774 Invalid, 3 Unknown, 0 Unchecked, 46.0s Time] [2022-11-21 09:24:02,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2022-11-21 09:24:03,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 4548. [2022-11-21 09:24:03,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 3132 states have (on average 1.3467432950191571) internal successors, (4218), 3233 states have internal predecessors, (4218), 1157 states have call successors, (1157), 259 states have call predecessors, (1157), 258 states have return successors, (1154), 1139 states have call predecessors, (1154), 1151 states have call successors, (1154) [2022-11-21 09:24:03,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 6529 transitions. [2022-11-21 09:24:03,102 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 6529 transitions. Word has length 124 [2022-11-21 09:24:03,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:24:03,102 INFO L495 AbstractCegarLoop]: Abstraction has 4548 states and 6529 transitions. [2022-11-21 09:24:03,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.8) internal successors, (72), 11 states have internal predecessors, (72), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 09:24:03,103 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 6529 transitions. [2022-11-21 09:24:03,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-21 09:24:03,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:24:03,106 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] [2022-11-21 09:24:03,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 09:24:03,107 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:24:03,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:24:03,107 INFO L85 PathProgramCache]: Analyzing trace with hash 663156935, now seen corresponding path program 1 times [2022-11-21 09:24:03,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:24:03,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233532204] [2022-11-21 09:24:03,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:24:03,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:24:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 09:24:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 09:24:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:24:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 09:24:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 09:24:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:24:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 09:24:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:24:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:24:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:24:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 09:24:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 09:24:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 09:24:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:24:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-21 09:24:03,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:24:03,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233532204] [2022-11-21 09:24:03,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233532204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:24:03,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:24:03,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:24:03,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939444239] [2022-11-21 09:24:03,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:24:03,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:24:03,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:24:03,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:24:03,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:24:03,523 INFO L87 Difference]: Start difference. First operand 4548 states and 6529 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-21 09:24:05,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:24:07,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:24:21,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:24:21,486 INFO L93 Difference]: Finished difference Result 9443 states and 13867 transitions. [2022-11-21 09:24:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:24:21,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 130 [2022-11-21 09:24:21,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:24:21,508 INFO L225 Difference]: With dead ends: 9443 [2022-11-21 09:24:21,508 INFO L226 Difference]: Without dead ends: 5962 [2022-11-21 09:24:21,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:24:21,519 INFO L413 NwaCegarLoop]: 2378 mSDtfsCounter, 2438 mSDsluCounter, 3586 mSDsCounter, 0 mSdLazyCounter, 3336 mSolverCounterSat, 796 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 5964 SdHoareTripleChecker+Invalid, 4134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 3336 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-11-21 09:24:21,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2745 Valid, 5964 Invalid, 4134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [796 Valid, 3336 Invalid, 2 Unknown, 0 Unchecked, 16.7s Time] [2022-11-21 09:24:21,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5962 states. [2022-11-21 09:24:21,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5962 to 3388. [2022-11-21 09:24:21,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 2330 states have (on average 1.3472103004291847) internal successors, (3139), 2404 states have internal predecessors, (3139), 866 states have call successors, (866), 193 states have call predecessors, (866), 191 states have return successors, (862), 853 states have call predecessors, (862), 862 states have call successors, (862) [2022-11-21 09:24:21,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 4867 transitions. [2022-11-21 09:24:21,945 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 4867 transitions. Word has length 130 [2022-11-21 09:24:21,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:24:21,946 INFO L495 AbstractCegarLoop]: Abstraction has 3388 states and 4867 transitions. [2022-11-21 09:24:21,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-21 09:24:21,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 4867 transitions. [2022-11-21 09:24:21,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-21 09:24:21,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:24:21,952 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] [2022-11-21 09:24:21,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 09:24:21,952 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:24:21,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:24:21,952 INFO L85 PathProgramCache]: Analyzing trace with hash 923248779, now seen corresponding path program 1 times [2022-11-21 09:24:21,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:24:21,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294146628] [2022-11-21 09:24:21,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:24:21,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:24:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:24:22,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:24:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:24:22,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:24:22,393 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 09:24:22,394 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 09:24:22,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 09:24:22,400 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:24:22,403 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:24:22,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:24:22 BoogieIcfgContainer [2022-11-21 09:24:22,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:24:22,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:24:22,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:24:22,711 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:24:22,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:16:44" (3/4) ... [2022-11-21 09:24:22,715 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 09:24:22,715 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:24:22,719 INFO L158 Benchmark]: Toolchain (without parser) took 481285.18ms. Allocated memory was 174.1MB in the beginning and 5.2GB in the end (delta: 5.0GB). Free memory was 127.6MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. [2022-11-21 09:24:22,719 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:24:22,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2058.16ms. Allocated memory is still 174.1MB. Free memory was 127.2MB in the beginning and 78.1MB in the end (delta: 49.0MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2022-11-21 09:24:22,720 INFO L158 Benchmark]: Boogie Procedure Inliner took 304.03ms. Allocated memory is still 174.1MB. Free memory was 78.1MB in the beginning and 115.7MB in the end (delta: -37.6MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-11-21 09:24:22,720 INFO L158 Benchmark]: Boogie Preprocessor took 214.34ms. Allocated memory is still 174.1MB. Free memory was 115.7MB in the beginning and 94.2MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-21 09:24:22,725 INFO L158 Benchmark]: RCFGBuilder took 20853.35ms. Allocated memory was 174.1MB in the beginning and 769.7MB in the end (delta: 595.6MB). Free memory was 94.2MB in the beginning and 365.6MB in the end (delta: -271.4MB). Peak memory consumption was 465.0MB. Max. memory is 16.1GB. [2022-11-21 09:24:22,726 INFO L158 Benchmark]: TraceAbstraction took 457840.28ms. Allocated memory was 769.7MB in the beginning and 5.2GB in the end (delta: 4.4GB). Free memory was 364.5MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. [2022-11-21 09:24:22,726 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 5.2GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:24:22,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2058.16ms. Allocated memory is still 174.1MB. Free memory was 127.2MB in the beginning and 78.1MB in the end (delta: 49.0MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 304.03ms. Allocated memory is still 174.1MB. Free memory was 78.1MB in the beginning and 115.7MB in the end (delta: -37.6MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 214.34ms. Allocated memory is still 174.1MB. Free memory was 115.7MB in the beginning and 94.2MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * RCFGBuilder took 20853.35ms. Allocated memory was 174.1MB in the beginning and 769.7MB in the end (delta: 595.6MB). Free memory was 94.2MB in the beginning and 365.6MB in the end (delta: -271.4MB). Peak memory consumption was 465.0MB. Max. memory is 16.1GB. * TraceAbstraction took 457840.28ms. Allocated memory was 769.7MB in the beginning and 5.2GB in the end (delta: 4.4GB). Free memory was 364.5MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 5.2GB. Free memory is still 1.5GB. 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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 [\old(size)=8, \result={0:0}, __this_module={4294967407:4294967402}, 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, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5521] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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 [\old(size)=1, \result={0:0}, __this_module={4294967407:4294967402}, 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, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5523] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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 [\old(size)=16, \result={0:0}, __this_module={4294967407:4294967402}, 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, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5525] RET, EXPR ldv_zalloc(16UL) VAL [__this_module={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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 [\old(size)=8, \result={0:0}, __this_module={4294967407:4294967402}, 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, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5527] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967407:4294967402}, 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={4294967407:4294967402}, 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=4294967332, 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=4294967332, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5533] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967407:4294967402}, 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 [\old(size)=8, \result={0:0}, __this_module={4294967407:4294967402}, 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, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5533] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967407:4294967402}, 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=4294967332, 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=4294967332, 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={4294967407:4294967402}, 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=4294967332, 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=4294967332, 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={4294967407:4294967402}, 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 [\old(size)=1, \result={0:0}, __this_module={4294967407:4294967402}, 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, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5537] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967407:4294967402}, 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=4294967332, 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=4294967332, 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={4294967407:4294967402}, 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=4294967332, ldvarg10={0:0}, ldvarg2=85, 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=4294967332, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=85, 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={4294967407:4294967402}, 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=4294967332, ldvarg10={0:0}, ldvarg2=85, 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=4294967332, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=85, 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={4294967407:4294967402}, 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=4294967332, ldvarg10={0:0}, ldvarg2=85, 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=4294967332, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=85, 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={4294967407:4294967402}, 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 [\old(size)=120, __this_module={4294967407:4294967402}, 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}] [L3184] void *p ; [L3185] void *tmp ; [L3186] int tmp___0 ; [L3188] tmp___0 = __VERIFIER_nondet_int() [L3189] COND TRUE tmp___0 != 0 [L3190] return ((void *)0); VAL [\old(size)=120, \result={0:0}, __this_module={4294967407:4294967402}, 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, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5901] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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 [__this_module={4294967407:4294967402}, 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}] [L5736] long tmp ; VAL [__this_module={4294967407:4294967402}, 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}, 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 [__this_module={4294967407:4294967402}, 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}] [L5861] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __this_module={4294967407:4294967402}, 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}, 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 [__this_module={4294967407:4294967402}, 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}, 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 [\result=0, __this_module={4294967407:4294967402}, 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}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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 [\old(ldv_func_arg2)=0, \old(ldv_func_arg3)=1, \result=0, __this_module={4294967407:4294967402}, 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_arg1={103:0}, ldv_func_arg2=0, ldv_func_arg3=1, ldv_func_arg4={93:0}, ldv_func_arg4={93:0}, ldv_func_res=0, 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, tmp___0=0, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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 [\result=0, __this_module={4294967407:4294967402}, 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_arg1={123:0}, ldv_func_res=0, 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=0, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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=4294967332, ldvarg10={0:0}, ldvarg2=85, 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=4294967332, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=85, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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 [\old(size)=1072, \result={0:0}, __this_module={4294967407:4294967402}, 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, usb_gadget_class={0:0}, usb_printer_gadget={104:0}] [L5475] RET, EXPR ldv_zalloc(1072UL) VAL [__this_module={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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=4294967332, ldvarg10={0:0}, ldvarg2=85, 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=4294967332, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=85, 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={4294967407:4294967402}, 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=4294967332, ldvarg10={0:0}, ldvarg2=85, 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=4294967332, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=85, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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 [__this_module={4294967407:4294967402}, 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_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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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={4294967407:4294967402}, 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, 1268 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 457.4s, OverallIterations: 18, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 400.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 mSolverCounterUnknown, 55068 SdHoareTripleChecker+Valid, 359.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50670 mSDsluCounter, 174937 SdHoareTripleChecker+Invalid, 336.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 145673 mSDsCounter, 21128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113390 IncrementalHoareTripleChecker+Invalid, 134545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21128 mSolverCounterUnsat, 29264 mSDtfsCounter, 113390 mSolverCounterSat, 1.9s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 877 GetRequests, 619 SyntacticMatches, 4 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36326occurred in iteration=7, InterpolantAutomatonStates: 220, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 22.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 97881 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 5.7s SatisfiabilityAnalysisTime, 23.9s InterpolantComputationTime, 2006 NumberOfCodeBlocks, 2006 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1855 ConstructedInterpolants, 0 QuantifiedInterpolants, 4556 SizeOfPredicates, 23 NumberOfNonLiveVariables, 4867 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 19 InterpolantComputations, 17 PerfectInterpolantSequences, 1352/1361 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 [2022-11-21 09:24:22,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/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_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.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_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-b5237d8 [2022-11-21 09:24:25,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:24:25,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:24:25,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:24:25,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:24:25,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:24:25,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:24:25,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:24:25,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:24:25,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:24:25,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:24:25,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:24:25,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:24:25,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:24:25,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:24:25,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:24:25,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:24:25,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:24:25,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:24:25,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:24:25,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:24:25,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:24:25,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:24:25,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:24:25,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:24:25,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:24:25,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:24:25,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:24:25,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:24:25,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:24:25,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:24:25,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:24:25,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:24:25,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:24:25,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:24:25,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:24:25,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:24:25,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:24:25,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:24:25,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:24:25,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:24:25,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 09:24:25,691 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:24:25,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:24:25,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:24:25,693 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:24:25,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:24:25,694 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:24:25,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:24:25,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:24:25,695 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:24:25,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:24:25,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:24:25,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:24:25,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:24:25,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:24:25,698 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 09:24:25,698 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 09:24:25,699 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 09:24:25,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:24:25,699 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:24:25,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:24:25,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:24:25,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:24:25,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:24:25,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:24:25,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:24:25,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:24:25,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:24:25,702 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 09:24:25,702 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 09:24:25,702 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:24:25,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:24:25,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:24:25,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 09:24:25,704 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_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2022-11-21 09:24:26,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:24:26,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:24:26,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:24:26,152 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:24:26,153 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:24:26,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-21 09:24:29,212 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:24:29,787 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:24:29,788 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-21 09:24:29,829 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/data/d6a7fb8cc/4d81e759e01745c891b3fefcf186a84c/FLAGcee3f3208 [2022-11-21 09:24:29,846 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7204567-fff4-40cf-984b-9d2e12f735eb/bin/uautomizer-vX5HgA9Q3a/data/d6a7fb8cc/4d81e759e01745c891b3fefcf186a84c [2022-11-21 09:24:29,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:24:29,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:24:29,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:24:29,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:24:29,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:24:29,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:24:29" (1/1) ... [2022-11-21 09:24:29,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6455ecc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:24:29, skipping insertion in model container [2022-11-21 09:24:29,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:24:29" (1/1) ... [2022-11-21 09:24:29,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:24:29,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:24:30,851 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_c7204567-fff4-40cf-984b-9d2e12f735eb/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] [2022-11-21 09:24:31,110 WARN L569 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-11-21 09:24:31,388 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: snprintf((char *)(& manufacturer), 50UL, "%s %s with %s", (char *)(& tmp___1->sysname), (char *)(& tmp___0->release), gadget->name) [5254-5255] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:617) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:172) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleSnPrintF(StandardFunctionHandler.java:971) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$21(StandardFunctionHandler.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1463) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-21 09:24:31,400 INFO L158 Benchmark]: Toolchain (without parser) took 1548.77ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 61.7MB in the beginning and 77.0MB in the end (delta: -15.3MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2022-11-21 09:24:31,401 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 86.0MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:24:31,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1545.12ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 61.4MB in the beginning and 77.5MB in the end (delta: -16.2MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2022-11-21 09:24:31,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 86.0MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1545.12ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 61.4MB in the beginning and 77.5MB in the end (delta: -16.2MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: snprintf((char *)(& manufacturer), 50UL, "%s %s with %s", (char *)(& tmp___1->sysname), (char *)(& tmp___0->release), gadget->name) [5254-5255] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: snprintf((char *)(& manufacturer), 50UL, "%s %s with %s", (char *)(& tmp___1->sysname), (char *)(& tmp___0->release), gadget->name) [5254-5255]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: TypeCheckException: Type check failed for C: snprintf((char *)(& manufacturer), 50UL, "%s %s with %s", (char *)(& tmp___1->sysname),