./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 8393723b 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_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:36:04,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:36:04,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:36:04,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:36:04,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:36:04,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:36:04,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:36:04,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:36:04,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:36:04,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:36:04,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:36:04,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:36:04,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:36:04,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:36:04,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:36:04,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:36:04,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:36:04,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:36:04,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:36:04,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:36:04,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:36:04,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:36:04,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:36:04,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:36:04,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:36:04,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:36:04,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:36:04,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:36:04,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:36:04,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:36:04,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:36:04,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:36:04,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:36:04,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:36:04,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:36:04,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:36:04,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:36:04,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:36:04,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:36:04,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:36:04,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:36:04,424 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:36:04,465 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:36:04,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:36:04,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:36:04,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:36:04,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:36:04,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:36:04,469 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:36:04,469 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:36:04,469 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:36:04,470 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:36:04,471 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:36:04,471 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:36:04,471 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:36:04,472 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:36:04,472 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:36:04,472 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:36:04,473 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:36:04,473 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:36:04,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:36:04,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:36:04,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:36:04,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:36:04,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:36:04,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:36:04,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:36:04,477 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:36:04,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:36:04,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:36:04,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:36:04,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:36:04,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:36:04,479 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:36:04,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:36:04,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:36:04,480 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:36:04,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:36:04,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:36:04,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:36:04,481 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_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2022-11-19 08:36:04,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:36:04,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:36:04,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:36:04,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:36:04,843 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:36:04,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-19 08:36:04,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/data/2c12dd202/f2cbca809bcd4056b82d6cb72c8a69d3/FLAGcd5103292 [2022-11-19 08:36:05,784 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:36:05,785 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-19 08:36:05,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/data/2c12dd202/f2cbca809bcd4056b82d6cb72c8a69d3/FLAGcd5103292 [2022-11-19 08:36:06,289 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/data/2c12dd202/f2cbca809bcd4056b82d6cb72c8a69d3 [2022-11-19 08:36:06,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:36:06,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:36:06,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:36:06,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:36:06,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:36:06,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e019b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06, skipping insertion in model container [2022-11-19 08:36:06,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:36:06,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:36:07,196 WARN L234 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_e262de79-6a69-447e-abce-026e546811b4/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] [2022-11-19 08:36:07,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:36:07,685 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:36:07,755 WARN L234 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_e262de79-6a69-447e-abce-026e546811b4/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] [2022-11-19 08:36:08,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:36:08,199 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:36:08,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08 WrapperNode [2022-11-19 08:36:08,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:36:08,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:36:08,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:36:08,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:36:08,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,385 INFO L138 Inliner]: procedures = 203, calls = 1279, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 3520 [2022-11-19 08:36:08,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:36:08,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:36:08,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:36:08,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:36:08,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,653 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:36:08,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:36:08,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:36:08,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:36:08,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (1/1) ... [2022-11-19 08:36:08,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:36:08,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:36:08,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:36:08,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:36:08,808 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-11-19 08:36:08,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-11-19 08:36:08,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-19 08:36:08,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-19 08:36:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:36:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:36:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:36:08,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:36:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-11-19 08:36:08,809 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-11-19 08:36:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-11-19 08:36:08,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-11-19 08:36:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-11-19 08:36:08,810 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-11-19 08:36:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 08:36:08,811 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 08:36:08,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:36:08,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:36:08,811 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-11-19 08:36:08,811 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-11-19 08:36:08,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-11-19 08:36:08,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-11-19 08:36:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-19 08:36:08,812 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-19 08:36:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-11-19 08:36:08,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-11-19 08:36:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 08:36:08,813 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 08:36:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 08:36:08,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 08:36:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-11-19 08:36:08,814 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-11-19 08:36:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:36:08,814 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:36:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:36:08,815 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:36:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-19 08:36:08,815 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-19 08:36:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-11-19 08:36:08,816 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-11-19 08:36:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:36:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:36:08,816 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:36:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:36:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-11-19 08:36:08,817 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-11-19 08:36:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-11-19 08:36:08,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-11-19 08:36:08,819 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:36:08,819 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:36:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:36:08,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:36:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-19 08:36:08,821 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-19 08:36:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 08:36:08,821 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 08:36:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:36:08,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:36:08,822 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-11-19 08:36:08,822 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-11-19 08:36:08,822 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 08:36:08,822 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 08:36:08,823 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 08:36:08,823 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 08:36:08,823 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-19 08:36:08,823 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-19 08:36:08,823 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 08:36:08,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 08:36:08,824 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 08:36:08,824 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 08:36:08,824 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-11-19 08:36:08,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-11-19 08:36:08,824 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 08:36:08,825 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 08:36:08,825 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-19 08:36:08,825 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-19 08:36:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:36:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 08:36:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 08:36:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 08:36:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 08:36:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-19 08:36:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-19 08:36:08,830 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 08:36:08,830 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 08:36:08,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:36:08,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:36:08,831 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-11-19 08:36:08,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-11-19 08:36:08,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:36:08,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:36:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-11-19 08:36:08,833 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-11-19 08:36:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-19 08:36:08,834 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-19 08:36:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:36:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-11-19 08:36:08,834 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-11-19 08:36:08,835 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-11-19 08:36:08,835 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-11-19 08:36:08,835 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-11-19 08:36:08,835 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-11-19 08:36:08,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:36:08,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:36:08,836 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-11-19 08:36:08,836 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-11-19 08:36:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:36:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-19 08:36:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-11-19 08:36:08,838 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-11-19 08:36:08,839 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-11-19 08:36:08,841 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-11-19 08:36:08,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-11-19 08:36:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-19 08:36:08,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-19 08:36:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:36:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:36:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:36:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-11-19 08:36:08,845 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-11-19 08:36:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-11-19 08:36:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-11-19 08:36:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-19 08:36:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-19 08:36:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 08:36:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 08:36:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 08:36:08,854 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 08:36:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-11-19 08:36:08,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-11-19 08:36:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-19 08:36:08,854 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-19 08:36:08,855 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:36:08,855 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:36:08,855 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-11-19 08:36:08,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-11-19 08:36:08,855 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-11-19 08:36:08,855 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-11-19 08:36:08,855 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:36:08,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:36:08,856 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-11-19 08:36:08,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-11-19 08:36:08,856 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-19 08:36:08,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-19 08:36:08,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-11-19 08:36:08,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-11-19 08:36:08,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:36:08,857 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-19 08:36:08,857 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-19 08:36:08,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:36:08,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:36:08,858 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 08:36:08,858 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 08:36:09,593 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:36:09,598 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:36:09,796 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:36:39,993 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:36:41,294 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:36:41,294 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:36:41,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:36:41 BoogieIcfgContainer [2022-11-19 08:36:41,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:36:41,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:36:41,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:36:41,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:36:41,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:36:06" (1/3) ... [2022-11-19 08:36:41,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0df436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:36:41, skipping insertion in model container [2022-11-19 08:36:41,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:08" (2/3) ... [2022-11-19 08:36:41,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0df436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:36:41, skipping insertion in model container [2022-11-19 08:36:41,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:36:41" (3/3) ... [2022-11-19 08:36:41,314 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-19 08:36:41,335 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:36:41,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:36:41,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:36:41,436 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4b1a31c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:36:41,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:36:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 992 states, 601 states have (on average 1.3810316139767056) internal successors, (830), 644 states have internal predecessors, (830), 323 states have call successors, (323), 67 states have call predecessors, (323), 66 states have return successors, (319), 316 states have call predecessors, (319), 319 states have call successors, (319) [2022-11-19 08:36:41,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-19 08:36:41,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:41,458 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:41,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:36:41,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:41,465 INFO L85 PathProgramCache]: Analyzing trace with hash -2061920186, now seen corresponding path program 1 times [2022-11-19 08:36:41,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:41,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067951195] [2022-11-19 08:36:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:41,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:42,540 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:36:42,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:42,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067951195] [2022-11-19 08:36:42,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067951195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:42,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:42,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:42,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503234101] [2022-11-19 08:36:42,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:42,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:42,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:42,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:42,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:42,594 INFO L87 Difference]: Start difference. First operand has 992 states, 601 states have (on average 1.3810316139767056) internal successors, (830), 644 states have internal predecessors, (830), 323 states have call successors, (323), 67 states have call predecessors, (323), 66 states have return successors, (319), 316 states have call predecessors, (319), 319 states have call successors, (319) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 08:36:44,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:46,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:46,231 INFO L93 Difference]: Finished difference Result 2831 states and 4254 transitions. [2022-11-19 08:36:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:36:46,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2022-11-19 08:36:46,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:46,277 INFO L225 Difference]: With dead ends: 2831 [2022-11-19 08:36:46,277 INFO L226 Difference]: Without dead ends: 1839 [2022-11-19 08:36:46,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:46,289 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 1361 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:46,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 2768 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 308 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-19 08:36:46,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2022-11-19 08:36:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1833. [2022-11-19 08:36:46,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1115 states have (on average 1.366816143497758) internal successors, (1524), 1175 states have internal predecessors, (1524), 592 states have call successors, (592), 126 states have call predecessors, (592), 125 states have return successors, (579), 573 states have call predecessors, (579), 579 states have call successors, (579) [2022-11-19 08:36:46,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2695 transitions. [2022-11-19 08:36:46,526 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2695 transitions. Word has length 54 [2022-11-19 08:36:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:46,528 INFO L495 AbstractCegarLoop]: Abstraction has 1833 states and 2695 transitions. [2022-11-19 08:36:46,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 08:36:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2695 transitions. [2022-11-19 08:36:46,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-19 08:36:46,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:46,539 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:46,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:36:46,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:36:46,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:46,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1780082749, now seen corresponding path program 1 times [2022-11-19 08:36:46,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:46,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730926975] [2022-11-19 08:36:46,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:46,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:47,114 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:36:47,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:47,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730926975] [2022-11-19 08:36:47,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730926975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:47,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:47,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:47,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510978077] [2022-11-19 08:36:47,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:47,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:47,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:47,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:47,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:47,119 INFO L87 Difference]: Start difference. First operand 1833 states and 2695 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 08:36:49,166 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 [] [2022-11-19 08:36:50,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:50,694 INFO L93 Difference]: Finished difference Result 3621 states and 5331 transitions. [2022-11-19 08:36:50,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:36:50,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 54 [2022-11-19 08:36:50,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:50,729 INFO L225 Difference]: With dead ends: 3621 [2022-11-19 08:36:50,729 INFO L226 Difference]: Without dead ends: 3601 [2022-11-19 08:36:50,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:50,735 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 1373 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:50,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 2743 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 304 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-19 08:36:50,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2022-11-19 08:36:50,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3597. [2022-11-19 08:36:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3597 states, 2194 states have (on average 1.3646308113035552) internal successors, (2994), 2302 states have internal predecessors, (2994), 1158 states have call successors, (1158), 247 states have call predecessors, (1158), 244 states have return successors, (1146), 1131 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-19 08:36:50,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3597 states to 3597 states and 5298 transitions. [2022-11-19 08:36:50,957 INFO L78 Accepts]: Start accepts. Automaton has 3597 states and 5298 transitions. Word has length 54 [2022-11-19 08:36:50,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:50,958 INFO L495 AbstractCegarLoop]: Abstraction has 3597 states and 5298 transitions. [2022-11-19 08:36:50,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 08:36:50,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3597 states and 5298 transitions. [2022-11-19 08:36:50,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-19 08:36:50,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:50,961 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:50,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:36:50,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:36:50,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:50,962 INFO L85 PathProgramCache]: Analyzing trace with hash -652991518, now seen corresponding path program 1 times [2022-11-19 08:36:50,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:50,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672270420] [2022-11-19 08:36:50,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:50,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:36:51,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:51,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672270420] [2022-11-19 08:36:51,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672270420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:51,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:51,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:51,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581217610] [2022-11-19 08:36:51,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:51,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:51,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:51,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:51,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:51,437 INFO L87 Difference]: Start difference. First operand 3597 states and 5298 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 08:36:53,478 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 [] [2022-11-19 08:36:55,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:55,125 INFO L93 Difference]: Finished difference Result 10729 states and 15819 transitions. [2022-11-19 08:36:55,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:36:55,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 55 [2022-11-19 08:36:55,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:55,186 INFO L225 Difference]: With dead ends: 10729 [2022-11-19 08:36:55,187 INFO L226 Difference]: Without dead ends: 7145 [2022-11-19 08:36:55,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:55,214 INFO L413 NwaCegarLoop]: 1660 mSDtfsCounter, 1372 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:55,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 2865 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 322 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-19 08:36:55,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7145 states. [2022-11-19 08:36:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7145 to 7134. [2022-11-19 08:36:55,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7134 states, 4357 states have (on average 1.3651595134266696) internal successors, (5948), 4565 states have internal predecessors, (5948), 2294 states have call successors, (2294), 487 states have call predecessors, (2294), 482 states have return successors, (2276), 2249 states have call predecessors, (2276), 2276 states have call successors, (2276) [2022-11-19 08:36:55,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 10518 transitions. [2022-11-19 08:36:55,795 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 10518 transitions. Word has length 55 [2022-11-19 08:36:55,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:55,796 INFO L495 AbstractCegarLoop]: Abstraction has 7134 states and 10518 transitions. [2022-11-19 08:36:55,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 08:36:55,797 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 10518 transitions. [2022-11-19 08:36:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-19 08:36:55,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:55,800 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:55,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:36:55,801 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:36:55,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:55,802 INFO L85 PathProgramCache]: Analyzing trace with hash 585695159, now seen corresponding path program 1 times [2022-11-19 08:36:55,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:55,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413689722] [2022-11-19 08:36:55,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:55,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:36:56,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:56,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413689722] [2022-11-19 08:36:56,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413689722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:56,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:56,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:56,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359380520] [2022-11-19 08:36:56,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:56,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:56,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:56,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:56,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:56,300 INFO L87 Difference]: Start difference. First operand 7134 states and 10518 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 08:36:58,343 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 [] [2022-11-19 08:37:00,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:00,152 INFO L93 Difference]: Finished difference Result 21362 states and 31504 transitions. [2022-11-19 08:37:00,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:37:00,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2022-11-19 08:37:00,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:00,287 INFO L225 Difference]: With dead ends: 21362 [2022-11-19 08:37:00,287 INFO L226 Difference]: Without dead ends: 14238 [2022-11-19 08:37:00,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:00,334 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 1365 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:00,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 2797 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 303 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-19 08:37:00,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14238 states. [2022-11-19 08:37:01,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14238 to 14201. [2022-11-19 08:37:01,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14201 states, 8684 states have (on average 1.3654997696913864) internal successors, (11858), 9088 states have internal predecessors, (11858), 4558 states have call successors, (4558), 966 states have call predecessors, (4558), 958 states have return successors, (4538), 4482 states have call predecessors, (4538), 4538 states have call successors, (4538) [2022-11-19 08:37:01,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14201 states to 14201 states and 20954 transitions. [2022-11-19 08:37:01,272 INFO L78 Accepts]: Start accepts. Automaton has 14201 states and 20954 transitions. Word has length 68 [2022-11-19 08:37:01,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:01,275 INFO L495 AbstractCegarLoop]: Abstraction has 14201 states and 20954 transitions. [2022-11-19 08:37:01,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 08:37:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 14201 states and 20954 transitions. [2022-11-19 08:37:01,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-19 08:37:01,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:01,281 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:01,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:37:01,281 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:37:01,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:01,282 INFO L85 PathProgramCache]: Analyzing trace with hash 115163525, now seen corresponding path program 1 times [2022-11-19 08:37:01,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:01,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794534849] [2022-11-19 08:37:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:01,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:37:04,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:04,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794534849] [2022-11-19 08:37:04,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794534849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:04,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:04,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-19 08:37:04,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711588242] [2022-11-19 08:37:04,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:04,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:37:04,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:04,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:37:04,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:37:04,276 INFO L87 Difference]: Start difference. First operand 14201 states and 20954 transitions. Second operand has 12 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-19 08:37:06,316 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 [] [2022-11-19 08:37:17,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:17,513 INFO L93 Difference]: Finished difference Result 41697 states and 61946 transitions. [2022-11-19 08:37:17,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-19 08:37:17,513 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 70 [2022-11-19 08:37:17,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:17,690 INFO L225 Difference]: With dead ends: 41697 [2022-11-19 08:37:17,690 INFO L226 Difference]: Without dead ends: 27509 [2022-11-19 08:37:17,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:37:17,769 INFO L413 NwaCegarLoop]: 2324 mSDtfsCounter, 1889 mSDsluCounter, 22159 mSDsCounter, 0 mSdLazyCounter, 3597 mSolverCounterSat, 216 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 24483 SdHoareTripleChecker+Invalid, 3814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 3597 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:17,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 24483 Invalid, 3814 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [216 Valid, 3597 Invalid, 1 Unknown, 0 Unchecked, 11.4s Time] [2022-11-19 08:37:17,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27509 states. [2022-11-19 08:37:19,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27509 to 24727. [2022-11-19 08:37:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24727 states, 15116 states have (on average 1.3649775072770574) internal successors, (20633), 15827 states have internal predecessors, (20633), 7932 states have call successors, (7932), 1674 states have call predecessors, (7932), 1678 states have return successors, (7954), 7813 states have call predecessors, (7954), 7912 states have call successors, (7954) [2022-11-19 08:37:19,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24727 states to 24727 states and 36519 transitions. [2022-11-19 08:37:19,385 INFO L78 Accepts]: Start accepts. Automaton has 24727 states and 36519 transitions. Word has length 70 [2022-11-19 08:37:19,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:19,386 INFO L495 AbstractCegarLoop]: Abstraction has 24727 states and 36519 transitions. [2022-11-19 08:37:19,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-19 08:37:19,386 INFO L276 IsEmpty]: Start isEmpty. Operand 24727 states and 36519 transitions. [2022-11-19 08:37:19,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 08:37:19,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:19,389 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:19,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:37:19,390 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:37:19,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:19,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1849681398, now seen corresponding path program 1 times [2022-11-19 08:37:19,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:19,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866535967] [2022-11-19 08:37:19,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:19,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:37:20,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:20,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866535967] [2022-11-19 08:37:20,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866535967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:20,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:20,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:37:20,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527643767] [2022-11-19 08:37:20,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:20,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:37:20,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:20,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:37:20,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:20,031 INFO L87 Difference]: Start difference. First operand 24727 states and 36519 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:37:22,086 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 [] [2022-11-19 08:37:24,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:24,337 INFO L93 Difference]: Finished difference Result 49448 states and 73025 transitions. [2022-11-19 08:37:24,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:37:24,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 80 [2022-11-19 08:37:24,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:24,510 INFO L225 Difference]: With dead ends: 49448 [2022-11-19 08:37:24,511 INFO L226 Difference]: Without dead ends: 24734 [2022-11-19 08:37:24,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:24,862 INFO L413 NwaCegarLoop]: 2419 mSDtfsCounter, 1338 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:24,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 3665 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 436 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-19 08:37:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24734 states. [2022-11-19 08:37:26,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24734 to 24708. [2022-11-19 08:37:26,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 15097 states have (on average 1.3643770285487182) internal successors, (20598), 15810 states have internal predecessors, (20598), 7932 states have call successors, (7932), 1674 states have call predecessors, (7932), 1678 states have return successors, (7954), 7811 states have call predecessors, (7954), 7912 states have call successors, (7954) [2022-11-19 08:37:26,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 36484 transitions. [2022-11-19 08:37:26,486 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 36484 transitions. Word has length 80 [2022-11-19 08:37:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:26,487 INFO L495 AbstractCegarLoop]: Abstraction has 24708 states and 36484 transitions. [2022-11-19 08:37:26,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:37:26,488 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 36484 transitions. [2022-11-19 08:37:26,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-19 08:37:26,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:26,491 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:26,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:37:26,492 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:37:26,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:26,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1148662944, now seen corresponding path program 1 times [2022-11-19 08:37:26,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:26,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137791563] [2022-11-19 08:37:26,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:26,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-19 08:37:30,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:30,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137791563] [2022-11-19 08:37:30,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137791563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:30,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:30,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-19 08:37:30,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301064542] [2022-11-19 08:37:30,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:30,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 08:37:30,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:30,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 08:37:30,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:37:30,702 INFO L87 Difference]: Start difference. First operand 24708 states and 36484 transitions. Second operand has 14 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-19 08:37:32,750 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 [] [2022-11-19 08:37:48,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:48,002 INFO L93 Difference]: Finished difference Result 62803 states and 93149 transitions. [2022-11-19 08:37:48,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-19 08:37:48,004 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 85 [2022-11-19 08:37:48,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:48,214 INFO L225 Difference]: With dead ends: 62803 [2022-11-19 08:37:48,214 INFO L226 Difference]: Without dead ends: 38108 [2022-11-19 08:37:48,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2022-11-19 08:37:48,320 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 2274 mSDsluCounter, 25384 mSDsCounter, 0 mSdLazyCounter, 4197 mSolverCounterSat, 421 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2340 SdHoareTripleChecker+Valid, 27765 SdHoareTripleChecker+Invalid, 4619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 4197 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:48,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2340 Valid, 27765 Invalid, 4619 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [421 Valid, 4197 Invalid, 1 Unknown, 0 Unchecked, 13.7s Time] [2022-11-19 08:37:48,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38108 states. [2022-11-19 08:37:50,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38108 to 24700. [2022-11-19 08:37:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24700 states, 15089 states have (on average 1.3644376698257008) internal successors, (20588), 15802 states have internal predecessors, (20588), 7932 states have call successors, (7932), 1674 states have call predecessors, (7932), 1678 states have return successors, (7954), 7811 states have call predecessors, (7954), 7912 states have call successors, (7954) [2022-11-19 08:37:50,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24700 states to 24700 states and 36474 transitions. [2022-11-19 08:37:50,930 INFO L78 Accepts]: Start accepts. Automaton has 24700 states and 36474 transitions. Word has length 85 [2022-11-19 08:37:50,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:50,932 INFO L495 AbstractCegarLoop]: Abstraction has 24700 states and 36474 transitions. [2022-11-19 08:37:50,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-19 08:37:50,933 INFO L276 IsEmpty]: Start isEmpty. Operand 24700 states and 36474 transitions. [2022-11-19 08:37:50,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-19 08:37:50,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:50,942 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:50,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:37:50,943 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:37:50,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:50,943 INFO L85 PathProgramCache]: Analyzing trace with hash 347944219, now seen corresponding path program 1 times [2022-11-19 08:37:50,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:50,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071084860] [2022-11-19 08:37:50,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:50,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:53,914 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-19 08:37:53,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:53,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071084860] [2022-11-19 08:37:53,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071084860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:53,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:53,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-19 08:37:53,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725764211] [2022-11-19 08:37:53,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:53,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 08:37:53,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:53,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 08:37:53,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:37:53,917 INFO L87 Difference]: Start difference. First operand 24700 states and 36474 transitions. Second operand has 14 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-19 08:37:55,964 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 [] [2022-11-19 08:38:10,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:10,713 INFO L93 Difference]: Finished difference Result 46707 states and 68948 transitions. [2022-11-19 08:38:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 08:38:10,713 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 92 [2022-11-19 08:38:10,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:10,811 INFO L225 Difference]: With dead ends: 46707 [2022-11-19 08:38:10,811 INFO L226 Difference]: Without dead ends: 22020 [2022-11-19 08:38:10,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=706, Unknown=0, NotChecked=0, Total=812 [2022-11-19 08:38:10,882 INFO L413 NwaCegarLoop]: 2615 mSDtfsCounter, 1796 mSDsluCounter, 27129 mSDsCounter, 0 mSdLazyCounter, 4359 mSolverCounterSat, 253 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 29744 SdHoareTripleChecker+Invalid, 4613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 4359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:10,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 29744 Invalid, 4613 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [253 Valid, 4359 Invalid, 1 Unknown, 0 Unchecked, 13.6s Time] [2022-11-19 08:38:10,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22020 states. [2022-11-19 08:38:12,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22020 to 21025. [2022-11-19 08:38:12,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21025 states, 12826 states have (on average 1.3638702635272104) internal successors, (17493), 13432 states have internal predecessors, (17493), 6769 states have call successors, (6769), 1424 states have call predecessors, (6769), 1429 states have return successors, (6793), 6672 states have call predecessors, (6793), 6757 states have call successors, (6793) [2022-11-19 08:38:12,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21025 states to 21025 states and 31055 transitions. [2022-11-19 08:38:12,674 INFO L78 Accepts]: Start accepts. Automaton has 21025 states and 31055 transitions. Word has length 92 [2022-11-19 08:38:12,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:12,675 INFO L495 AbstractCegarLoop]: Abstraction has 21025 states and 31055 transitions. [2022-11-19 08:38:12,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-19 08:38:12,675 INFO L276 IsEmpty]: Start isEmpty. Operand 21025 states and 31055 transitions. [2022-11-19 08:38:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-19 08:38:12,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:12,679 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:38:12,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:38:12,680 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:38:12,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:12,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2133926928, now seen corresponding path program 1 times [2022-11-19 08:38:12,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:12,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349873804] [2022-11-19 08:38:12,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:12,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-19 08:38:14,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:14,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349873804] [2022-11-19 08:38:14,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349873804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:14,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:38:14,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:38:14,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403041725] [2022-11-19 08:38:14,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:14,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:38:14,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:14,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:38:14,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:38:14,276 INFO L87 Difference]: Start difference. First operand 21025 states and 31055 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 08:38:16,328 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 [] [2022-11-19 08:38:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:26,125 INFO L93 Difference]: Finished difference Result 33785 states and 49892 transitions. [2022-11-19 08:38:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 08:38:26,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (12), 2 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 87 [2022-11-19 08:38:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:26,174 INFO L225 Difference]: With dead ends: 33785 [2022-11-19 08:38:26,175 INFO L226 Difference]: Without dead ends: 12790 [2022-11-19 08:38:26,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:38:26,236 INFO L413 NwaCegarLoop]: 2576 mSDtfsCounter, 2547 mSDsluCounter, 14169 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 450 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2549 SdHoareTripleChecker+Valid, 16745 SdHoareTripleChecker+Invalid, 3256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:26,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2549 Valid, 16745 Invalid, 3256 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [450 Valid, 2805 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2022-11-19 08:38:26,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12790 states. [2022-11-19 08:38:27,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12790 to 11804. [2022-11-19 08:38:27,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11804 states, 7190 states have (on average 1.356884561891516) internal successors, (9756), 7535 states have internal predecessors, (9756), 3767 states have call successors, (3767), 840 states have call predecessors, (3767), 846 states have return successors, (3770), 3701 states have call predecessors, (3770), 3755 states have call successors, (3770) [2022-11-19 08:38:27,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11804 states to 11804 states and 17293 transitions. [2022-11-19 08:38:27,827 INFO L78 Accepts]: Start accepts. Automaton has 11804 states and 17293 transitions. Word has length 87 [2022-11-19 08:38:27,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:27,828 INFO L495 AbstractCegarLoop]: Abstraction has 11804 states and 17293 transitions. [2022-11-19 08:38:27,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 08:38:27,829 INFO L276 IsEmpty]: Start isEmpty. Operand 11804 states and 17293 transitions. [2022-11-19 08:38:27,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-19 08:38:27,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:27,835 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:38:27,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:38:27,835 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:38:27,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:27,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2095666298, now seen corresponding path program 1 times [2022-11-19 08:38:27,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:27,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020694989] [2022-11-19 08:38:27,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:27,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 08:38:29,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:29,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020694989] [2022-11-19 08:38:29,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020694989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:29,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:38:29,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:38:29,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410813162] [2022-11-19 08:38:29,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:29,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:38:29,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:29,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:38:29,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:38:29,114 INFO L87 Difference]: Start difference. First operand 11804 states and 17293 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:38:31,166 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 [] [2022-11-19 08:38:34,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:34,159 INFO L93 Difference]: Finished difference Result 22705 states and 33270 transitions. [2022-11-19 08:38:34,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:38:34,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2022-11-19 08:38:34,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:34,206 INFO L225 Difference]: With dead ends: 22705 [2022-11-19 08:38:34,207 INFO L226 Difference]: Without dead ends: 11838 [2022-11-19 08:38:34,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:38:34,244 INFO L413 NwaCegarLoop]: 1853 mSDtfsCounter, 503 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 120 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 4995 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:34,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 4995 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 08:38:34,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11838 states. [2022-11-19 08:38:35,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11838 to 11794. [2022-11-19 08:38:35,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11794 states, 7186 states have (on average 1.3565265794600612) internal successors, (9748), 7531 states have internal predecessors, (9748), 3763 states have call successors, (3763), 836 states have call predecessors, (3763), 844 states have return successors, (3766), 3699 states have call predecessors, (3766), 3751 states have call successors, (3766) [2022-11-19 08:38:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11794 states to 11794 states and 17277 transitions. [2022-11-19 08:38:35,555 INFO L78 Accepts]: Start accepts. Automaton has 11794 states and 17277 transitions. Word has length 89 [2022-11-19 08:38:35,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:35,556 INFO L495 AbstractCegarLoop]: Abstraction has 11794 states and 17277 transitions. [2022-11-19 08:38:35,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:38:35,556 INFO L276 IsEmpty]: Start isEmpty. Operand 11794 states and 17277 transitions. [2022-11-19 08:38:35,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 08:38:35,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:35,562 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:38:35,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:38:35,563 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:38:35,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:35,563 INFO L85 PathProgramCache]: Analyzing trace with hash 103179601, now seen corresponding path program 1 times [2022-11-19 08:38:35,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:35,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167616787] [2022-11-19 08:38:35,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:35,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:38:36,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:36,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167616787] [2022-11-19 08:38:36,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167616787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:36,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:38:36,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:38:36,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980580525] [2022-11-19 08:38:36,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:36,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:38:36,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:36,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:38:36,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:38:36,463 INFO L87 Difference]: Start difference. First operand 11794 states and 17277 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:38:38,517 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 [] [2022-11-19 08:38:41,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:41,447 INFO L93 Difference]: Finished difference Result 21228 states and 31150 transitions. [2022-11-19 08:38:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:38:41,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2022-11-19 08:38:41,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:41,489 INFO L225 Difference]: With dead ends: 21228 [2022-11-19 08:38:41,489 INFO L226 Difference]: Without dead ends: 10371 [2022-11-19 08:38:41,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:38:41,520 INFO L413 NwaCegarLoop]: 1638 mSDtfsCounter, 677 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 4641 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:41,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 4641 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-19 08:38:41,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states. [2022-11-19 08:38:42,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10371 to 9972. [2022-11-19 08:38:42,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9972 states, 6072 states have (on average 1.3562252964426877) internal successors, (8235), 6362 states have internal predecessors, (8235), 3183 states have call successors, (3183), 710 states have call predecessors, (3183), 716 states have return successors, (3186), 3130 states have call predecessors, (3186), 3173 states have call successors, (3186) [2022-11-19 08:38:42,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9972 states to 9972 states and 14604 transitions. [2022-11-19 08:38:42,576 INFO L78 Accepts]: Start accepts. Automaton has 9972 states and 14604 transitions. Word has length 91 [2022-11-19 08:38:42,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:42,576 INFO L495 AbstractCegarLoop]: Abstraction has 9972 states and 14604 transitions. [2022-11-19 08:38:42,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:38:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 9972 states and 14604 transitions. [2022-11-19 08:38:42,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-19 08:38:42,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:42,583 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:38:42,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:38:42,584 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:38:42,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:42,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1181832999, now seen corresponding path program 1 times [2022-11-19 08:38:42,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:42,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99624212] [2022-11-19 08:38:42,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:42,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-19 08:38:44,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:44,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99624212] [2022-11-19 08:38:44,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99624212] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:38:44,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45912711] [2022-11-19 08:38:44,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:44,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:38:44,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:38:44,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:38:44,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:38:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:45,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 2731 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-19 08:38:45,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:38:46,011 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:38:46,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:38:46,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45912711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:46,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:38:46,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-11-19 08:38:46,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182804566] [2022-11-19 08:38:46,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:46,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:38:46,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:46,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:38:46,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:38:46,014 INFO L87 Difference]: Start difference. First operand 9972 states and 14604 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 08:38:48,065 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 [] [2022-11-19 08:38:51,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:51,199 INFO L93 Difference]: Finished difference Result 10355 states and 15201 transitions. [2022-11-19 08:38:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:38:51,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 97 [2022-11-19 08:38:51,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:51,231 INFO L225 Difference]: With dead ends: 10355 [2022-11-19 08:38:51,232 INFO L226 Difference]: Without dead ends: 6730 [2022-11-19 08:38:51,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:38:51,246 INFO L413 NwaCegarLoop]: 1611 mSDtfsCounter, 646 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 117 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 4597 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:51,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 4597 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-19 08:38:51,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2022-11-19 08:38:51,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6365. [2022-11-19 08:38:51,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6365 states, 3876 states have (on average 1.3547471620227038) internal successors, (5251), 4061 states have internal predecessors, (5251), 2029 states have call successors, (2029), 455 states have call predecessors, (2029), 459 states have return successors, (2030), 1995 states have call predecessors, (2030), 2021 states have call successors, (2030) [2022-11-19 08:38:51,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6365 states to 6365 states and 9310 transitions. [2022-11-19 08:38:51,927 INFO L78 Accepts]: Start accepts. Automaton has 6365 states and 9310 transitions. Word has length 97 [2022-11-19 08:38:51,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:51,927 INFO L495 AbstractCegarLoop]: Abstraction has 6365 states and 9310 transitions. [2022-11-19 08:38:51,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 08:38:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 6365 states and 9310 transitions. [2022-11-19 08:38:51,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-19 08:38:51,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:51,933 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:38:51,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:38:52,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-19 08:38:52,134 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:38:52,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:52,135 INFO L85 PathProgramCache]: Analyzing trace with hash 702729315, now seen corresponding path program 1 times [2022-11-19 08:38:52,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:52,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976093682] [2022-11-19 08:38:52,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:52,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:55,665 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-19 08:38:55,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:55,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976093682] [2022-11-19 08:38:55,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976093682] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:38:55,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583611779] [2022-11-19 08:38:55,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:55,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:38:55,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:38:55,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:38:55,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:39:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:39:00,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 2715 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-19 08:39:00,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:39:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-19 08:39:01,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:39:01,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583611779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:39:01,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:39:01,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [13] total 18 [2022-11-19 08:39:01,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214807322] [2022-11-19 08:39:01,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:39:01,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 08:39:01,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:39:01,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 08:39:01,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-19 08:39:01,893 INFO L87 Difference]: Start difference. First operand 6365 states and 9310 transitions. Second operand has 14 states, 9 states have (on average 6.0) internal successors, (54), 11 states have internal predecessors, (54), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2022-11-19 08:39:03,947 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 [] [2022-11-19 08:39:11,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:39:11,337 INFO L93 Difference]: Finished difference Result 9160 states and 13372 transitions. [2022-11-19 08:39:11,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 08:39:11,338 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 6.0) internal successors, (54), 11 states have internal predecessors, (54), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 103 [2022-11-19 08:39:11,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:39:11,357 INFO L225 Difference]: With dead ends: 9160 [2022-11-19 08:39:11,357 INFO L226 Difference]: Without dead ends: 3691 [2022-11-19 08:39:11,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 97 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:39:11,375 INFO L413 NwaCegarLoop]: 1471 mSDtfsCounter, 224 mSDsluCounter, 14320 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 15791 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:39:11,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 15791 Invalid, 1966 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 1947 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-11-19 08:39:11,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2022-11-19 08:39:11,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 3665. [2022-11-19 08:39:11,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3665 states, 2232 states have (on average 1.3512544802867383) internal successors, (3016), 2334 states have internal predecessors, (3016), 1168 states have call successors, (1168), 267 states have call predecessors, (1168), 264 states have return successors, (1161), 1147 states have call predecessors, (1161), 1161 states have call successors, (1161) [2022-11-19 08:39:11,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3665 states to 3665 states and 5345 transitions. [2022-11-19 08:39:11,834 INFO L78 Accepts]: Start accepts. Automaton has 3665 states and 5345 transitions. Word has length 103 [2022-11-19 08:39:11,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:39:11,834 INFO L495 AbstractCegarLoop]: Abstraction has 3665 states and 5345 transitions. [2022-11-19 08:39:11,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 6.0) internal successors, (54), 11 states have internal predecessors, (54), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2022-11-19 08:39:11,834 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 5345 transitions. [2022-11-19 08:39:11,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-19 08:39:11,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:39:11,841 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:39:11,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:39:12,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:39:12,068 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:39:12,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:39:12,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1078729188, now seen corresponding path program 1 times [2022-11-19 08:39:12,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:39:12,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072907676] [2022-11-19 08:39:12,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:39:12,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:39:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:39:12,581 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 08:39:12,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:39:12,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072907676] [2022-11-19 08:39:12,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072907676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:39:12,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:39:12,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:39:12,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814319762] [2022-11-19 08:39:12,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:39:12,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:39:12,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:39:12,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:39:12,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:39:12,586 INFO L87 Difference]: Start difference. First operand 3665 states and 5345 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 08:39:14,631 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 [] [2022-11-19 08:39:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:39:16,879 INFO L93 Difference]: Finished difference Result 3669 states and 5347 transitions. [2022-11-19 08:39:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:39:16,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 100 [2022-11-19 08:39:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:39:16,893 INFO L225 Difference]: With dead ends: 3669 [2022-11-19 08:39:16,893 INFO L226 Difference]: Without dead ends: 3666 [2022-11-19 08:39:16,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:39:16,896 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 1321 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:39:16,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 3591 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 08:39:16,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2022-11-19 08:39:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3664. [2022-11-19 08:39:17,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 2232 states have (on average 1.3503584229390682) internal successors, (3014), 2333 states have internal predecessors, (3014), 1167 states have call successors, (1167), 267 states have call predecessors, (1167), 264 states have return successors, (1161), 1147 states have call predecessors, (1161), 1161 states have call successors, (1161) [2022-11-19 08:39:17,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 5342 transitions. [2022-11-19 08:39:17,283 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 5342 transitions. Word has length 100 [2022-11-19 08:39:17,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:39:17,283 INFO L495 AbstractCegarLoop]: Abstraction has 3664 states and 5342 transitions. [2022-11-19 08:39:17,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 08:39:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 5342 transitions. [2022-11-19 08:39:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-19 08:39:17,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:39:17,292 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:39:17,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 08:39:17,292 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:39:17,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:39:17,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1783005687, now seen corresponding path program 1 times [2022-11-19 08:39:17,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:39:17,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904784016] [2022-11-19 08:39:17,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:39:17,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:39:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:39:18,721 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-19 08:39:18,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:39:18,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904784016] [2022-11-19 08:39:18,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904784016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:39:18,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:39:18,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:39:18,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856824541] [2022-11-19 08:39:18,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:39:18,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:39:18,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:39:18,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:39:18,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:39:18,724 INFO L87 Difference]: Start difference. First operand 3664 states and 5342 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:39:20,765 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 [] [2022-11-19 08:39:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:39:25,192 INFO L93 Difference]: Finished difference Result 6447 states and 9385 transitions. [2022-11-19 08:39:25,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:39:25,196 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 108 [2022-11-19 08:39:25,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:39:25,210 INFO L225 Difference]: With dead ends: 6447 [2022-11-19 08:39:25,210 INFO L226 Difference]: Without dead ends: 3662 [2022-11-19 08:39:25,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:39:25,222 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 522 mSDsluCounter, 9018 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 125 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 10557 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:39:25,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 10557 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1209 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 08:39:25,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2022-11-19 08:39:25,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3653. [2022-11-19 08:39:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3653 states, 2225 states have (on average 1.3510112359550561) internal successors, (3006), 2326 states have internal predecessors, (3006), 1165 states have call successors, (1165), 265 states have call predecessors, (1165), 262 states have return successors, (1159), 1145 states have call predecessors, (1159), 1159 states have call successors, (1159) [2022-11-19 08:39:25,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3653 states to 3653 states and 5330 transitions. [2022-11-19 08:39:25,657 INFO L78 Accepts]: Start accepts. Automaton has 3653 states and 5330 transitions. Word has length 108 [2022-11-19 08:39:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:39:25,657 INFO L495 AbstractCegarLoop]: Abstraction has 3653 states and 5330 transitions. [2022-11-19 08:39:25,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:39:25,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3653 states and 5330 transitions. [2022-11-19 08:39:25,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-19 08:39:25,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:39:25,666 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:39:25,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 08:39:25,667 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:39:25,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:39:25,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1113161493, now seen corresponding path program 1 times [2022-11-19 08:39:25,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:39:25,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779839967] [2022-11-19 08:39:25,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:39:25,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:39:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:39:25,943 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:39:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:39:26,258 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:39:26,258 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:39:26,259 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:39:26,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 08:39:26,266 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:39:26,271 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:39:26,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:39:26 BoogieIcfgContainer [2022-11-19 08:39:26,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:39:26,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:39:26,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:39:26,582 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:39:26,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:36:41" (3/4) ... [2022-11-19 08:39:26,587 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:39:26,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:39:26,589 INFO L158 Benchmark]: Toolchain (without parser) took 200292.77ms. Allocated memory was 151.0MB in the beginning and 4.0GB in the end (delta: 3.9GB). Free memory was 109.8MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-19 08:39:26,589 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 94.4MB. Free memory was 68.9MB in the beginning and 68.9MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:39:26,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1901.21ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 98.5MB in the end (delta: 11.0MB). Peak memory consumption was 79.0MB. Max. memory is 16.1GB. [2022-11-19 08:39:26,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 184.10ms. Allocated memory is still 151.0MB. Free memory was 98.5MB in the beginning and 78.4MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-19 08:39:26,591 INFO L158 Benchmark]: Boogie Preprocessor took 321.02ms. Allocated memory was 151.0MB in the beginning and 257.9MB in the end (delta: 107.0MB). Free memory was 78.4MB in the beginning and 191.3MB in the end (delta: -112.9MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-11-19 08:39:26,591 INFO L158 Benchmark]: RCFGBuilder took 32592.49ms. Allocated memory was 257.9MB in the beginning and 1.0GB in the end (delta: 782.2MB). Free memory was 191.3MB in the beginning and 637.9MB in the end (delta: -446.6MB). Peak memory consumption was 635.6MB. Max. memory is 16.1GB. [2022-11-19 08:39:26,592 INFO L158 Benchmark]: TraceAbstraction took 165277.97ms. Allocated memory was 1.0GB in the beginning and 4.0GB in the end (delta: 3.0GB). Free memory was 636.8MB in the beginning and 2.9GB in the end (delta: -2.3GB). Peak memory consumption was 721.0MB. Max. memory is 16.1GB. [2022-11-19 08:39:26,592 INFO L158 Benchmark]: Witness Printer took 5.60ms. Allocated memory is still 4.0GB. Free memory is still 2.9GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:39:26,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 94.4MB. Free memory was 68.9MB in the beginning and 68.9MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1901.21ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 98.5MB in the end (delta: 11.0MB). Peak memory consumption was 79.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 184.10ms. Allocated memory is still 151.0MB. Free memory was 98.5MB in the beginning and 78.4MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 321.02ms. Allocated memory was 151.0MB in the beginning and 257.9MB in the end (delta: 107.0MB). Free memory was 78.4MB in the beginning and 191.3MB in the end (delta: -112.9MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * RCFGBuilder took 32592.49ms. Allocated memory was 257.9MB in the beginning and 1.0GB in the end (delta: 782.2MB). Free memory was 191.3MB in the beginning and 637.9MB in the end (delta: -446.6MB). Peak memory consumption was 635.6MB. Max. memory is 16.1GB. * TraceAbstraction took 165277.97ms. Allocated memory was 1.0GB in the beginning and 4.0GB in the end (delta: 3.0GB). Free memory was 636.8MB in the beginning and 2.9GB in the end (delta: -2.3GB). Peak memory consumption was 721.0MB. Max. memory is 16.1GB. * Witness Printer took 5.60ms. Allocated memory is still 4.0GB. Free memory is still 2.9GB. 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; [L3939] static ushort idVendor ; [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}; [L3970-L3974] static char product_desc[40U] = { 'P', 'r', 'i', 'n', 't', 'e', 'r', ' ', 'G', 'a', 'd', 'g', 'e', 't', '\000'}; [L3263] int ref_cnt ; [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}; [L3940] static ushort idProduct ; [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}; [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}; [L3937] static struct class *usb_gadget_class ; [L3938] static struct printer_dev usb_printer_gadget ; [L3950] static struct usb_otg_descriptor otg_desc = {3U, 9U, 1U}; [L3928-L3930] static char const shortname[8U] = { 'p', 'r', 'i', 'n', 't', 'e', 'r', '\000'}; [L3946] static unsigned int qlen = 10U; [L3262] int ldv_state_variable_2 ; [L3752] static unsigned int epnum ; [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}; [L3267] int ldv_state_variable_0 ; [L3264] int ldv_state_variable_1 ; [L5895] int ldv_usb_gadget_chrdev = 0; [L3945] static char *iPNPstring ; [L3265] struct file *printer_io_operations_group2 ; [L3266] struct inode *printer_io_operations_group1 ; [L3969] static char manufacturer[50U] ; [L3988-L3990] static struct usb_string strings[4U] = { {1U, (char const *)(& manufacturer)}, {2U, (char const *)(& product_desc)}, {3U, (char const *)(& serial_num)}}; [L3936] static dev_t g_printer_devno ; [L3268] struct usb_gadget *printer_driver_group0 ; [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}; [L3991] static struct usb_gadget_strings stringtab = {1033U, (struct usb_string *)(& strings)}; [L5894] int ldv_usb_gadget_class = 0; [L3953-L3954] static struct usb_interface_descriptor intf_desc = {9U, 4U, 0U, (unsigned char)0, 2U, 7U, 1U, 2U, 0U}; [L3931-L3935] static char const driver_desc[15U] = { 'P', 'r', 'i', 'n', 't', 'e', 'r', ' ', 'G', 'a', 'd', 'g', 'e', 't', '\000'}; [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}; [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}}; [L3943] static char *iProduct ; [L3944] static char *iSerialNum ; [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'}; [L3951-L3952] static struct usb_config_descriptor config_desc = {9U, 2U, (unsigned short)0, 1U, 1U, 0U, 192U, 1U}; [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}; [L3975] static char serial_num[40U] = { '1', '\000'}; [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}; [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 ; [L5896] int ldv_usb_gadget = 0; [L5466] int ldv_retval_1 ; [L5470] int ldv_retval_2 ; [L5469] int ldv_retval_3 ; [L3942] static char *iManufacturer ; [L3941] static ushort bcdDevice ; [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5521] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=8, strings={111:0}, stringtab={114:0}, tmp___0=-2, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5521] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5521] tmp = ldv_zalloc(8UL) [L5522] ldvarg0 = (struct usb_ctrlrequest *)tmp VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5523] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=1, strings={111:0}, stringtab={114:0}, tmp___0=-3, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5523] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5523] tmp___0 = ldv_zalloc(1UL) [L5524] ldvarg7 = (char *)tmp___0 VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5525] CALL, EXPR ldv_zalloc(16UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=16, strings={111:0}, stringtab={114:0}, tmp___0=-4, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5525] RET, EXPR ldv_zalloc(16UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5525] tmp___1 = ldv_zalloc(16UL) [L5526] ldvarg3 = (struct poll_table_struct *)tmp___1 VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5527] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=8, strings={111:0}, stringtab={114:0}, tmp___0=-5, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5527] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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=4294967302, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967302, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5533] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=8, strings={111:0}, stringtab={114:0}, tmp___0=-7, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5533] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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=4294967302, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967302, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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=4294967302, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967302, tmp___5={0:0}, tmp___6=-8, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5537] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=1, strings={111:0}, stringtab={114:0}, tmp___0=-9, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5537] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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=4294967302, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967302, tmp___5={0:0}, tmp___6=-8, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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=4294967302, ldvarg10={0:0}, ldvarg2=51, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967302, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=51, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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=4294967302, ldvarg10={0:0}, ldvarg2=51, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967302, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=51, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: [L5610] case 1: VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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=4294967302, ldvarg10={0:0}, ldvarg2=51, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, 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=4294967302, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=51, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5901] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [\old(size)=120, __this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=120, strings={111:0}, stringtab={114:0}, tmp___0=1, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5901] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5901] is_got = ldv_malloc(sizeof(struct class)) [L5902] COND TRUE (unsigned long )is_got <= 2012UL VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5903] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5907] COND TRUE ldv_usb_gadget_class == 0 VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5911] ldv_usb_gadget_class = 1 VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5914] return (is_got); [L5421] RET, EXPR ldv_create_class() [L5421] tmp = ldv_create_class() [L5422] usb_gadget_class = (struct class *)tmp VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5423] CALL, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5736] long tmp ; VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5738] CALL, EXPR ldv_is_err(ptr) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5861] return ((unsigned long )ptr > 2012UL); [L5738] RET, EXPR ldv_is_err(ptr) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5738] tmp = ldv_is_err(ptr) [L5739] return (tmp); [L5423] RET, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5956] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5846] int ret ; [L5847] int tmp ; [L5849] CALL, EXPR ldv_undef_int() [L3220] int tmp ; [L3222] tmp = __VERIFIER_nondet_int() [L3223] return (tmp); [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5851] COND TRUE ret <= 0 [L5855] return (ret); [L5956] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5956] is_reg = ldv_undef_int_nonpositive() [L5957] COND TRUE ! is_reg VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5958] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5962] COND TRUE ldv_usb_gadget_chrdev == 0 VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5966] ldv_usb_gadget_chrdev = 1 VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5969] return (is_reg); [L5768] RET, EXPR ldv_register_chrdev_region() [L5768] tmp___0 = ldv_register_chrdev_region() [L5769] return (tmp___0); [L5432] RET, EXPR ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5432] status = ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5433] COND FALSE !(status != 0) [L5439] CALL, EXPR ldv_usb_gadget_register_driver_9(& printer_driver) [L5783] ldv_func_ret_type___0 ldv_func_res ; [L5784] int tmp ; [L5785] int tmp___0 ; [L5787] CALL, EXPR usb_gadget_register_driver(ldv_func_arg1) [L6157] return __VERIFIER_nondet_int(); [L5787] RET, EXPR usb_gadget_register_driver(ldv_func_arg1) [L5787] tmp = usb_gadget_register_driver(ldv_func_arg1) [L5788] ldv_func_res = tmp [L5789] CALL, EXPR ldv_register_usb_gadget() [L5989] int is_reg ; VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5991] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5846] int ret ; [L5847] int tmp ; [L5849] CALL, EXPR ldv_undef_int() [L3220] int tmp ; [L3222] tmp = __VERIFIER_nondet_int() [L3223] return (tmp); [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5851] COND TRUE ret <= 0 [L5855] return (ret); [L5991] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5991] is_reg = ldv_undef_int_nonpositive() [L5992] COND TRUE ! is_reg VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5993] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5997] ldv_usb_gadget = 1 VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L6000] return (is_reg); [L5789] RET, EXPR ldv_register_usb_gadget() [L5789] tmp___0 = ldv_register_usb_gadget() [L5790] return (tmp___0); [L5439] RET, EXPR ldv_usb_gadget_register_driver_9(& printer_driver) [L5439] status = ldv_usb_gadget_register_driver_9(& printer_driver) [L5440] COND FALSE !(status != 0) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, status=0, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5446] return (status); VAL [\result=0, __this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, status=0, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5612] RET, EXPR init() [L5612] ldv_retval_2 = init() [L5613] COND FALSE !(ldv_retval_2 != 0) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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=4294967302, ldvarg10={0:0}, ldvarg2=51, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, 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=4294967302, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=51, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5475] CALL, EXPR ldv_zalloc(1072UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [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={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=1072, strings={111:0}, stringtab={114:0}, tmp___0=-11, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5475] RET, EXPR ldv_zalloc(1072UL) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5475] tmp = ldv_zalloc(1072UL) [L5476] printer_driver_group0 = (struct usb_gadget *)tmp [L5621] RET ldv_initialize_usb_gadget_driver_1() [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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=4294967302, ldvarg10={0:0}, ldvarg2=51, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, 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=4294967302, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=51, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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=4294967302, ldvarg10={0:0}, ldvarg2=51, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=18446744073709551606, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, 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=4294967302, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=18446744073709551606, tmp___9=51, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5603] COND TRUE ldv_state_variable_0 == 2 && ref_cnt == 0 [L5604] CALL cleanup() [L5451] int status ; VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5453] FCALL mutex_lock_nested(& usb_printer_gadget.lock_printer_io, 0U) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5454] CALL ldv_class_destroy_12(usb_gadget_class) [L5813] FCALL class_destroy(ldv_func_arg1) VAL [__this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5814] CALL ldv_unregister_class() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5940] COND FALSE !(ldv_usb_gadget == 0) VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5942] CALL ldv_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3238] reach_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967325:4294967310}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 68 procedures, 993 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 164.9s, OverallIterations: 16, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 115.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 mSolverCounterUnknown, 19920 SdHoareTripleChecker+Valid, 94.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19208 mSDsluCounter, 157747 SdHoareTripleChecker+Invalid, 88.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128588 mSDsCounter, 1868 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21701 IncrementalHoareTripleChecker+Invalid, 23584 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1868 mSolverCounterUnsat, 29159 mSDtfsCounter, 21701 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 384 GetRequests, 234 SyntacticMatches, 4 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24727occurred in iteration=5, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 19100 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 6.6s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 1545 NumberOfCodeBlocks, 1545 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1416 ConstructedInterpolants, 0 QuantifiedInterpolants, 2589 SizeOfPredicates, 22 NumberOfNonLiveVariables, 5446 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 17 InterpolantComputations, 15 PerfectInterpolantSequences, 1153/1158 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 [2022-11-19 08:39:26,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/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_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:39:29,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:39:29,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:39:29,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:39:29,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:39:29,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:39:29,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:39:29,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:39:29,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:39:29,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:39:29,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:39:29,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:39:29,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:39:29,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:39:29,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:39:29,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:39:29,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:39:29,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:39:29,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:39:29,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:39:29,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:39:29,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:39:29,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:39:29,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:39:29,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:39:29,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:39:29,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:39:29,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:39:29,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:39:29,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:39:29,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:39:29,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:39:29,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:39:29,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:39:29,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:39:29,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:39:29,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:39:29,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:39:29,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:39:29,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:39:29,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:39:29,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 08:39:29,968 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:39:29,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:39:29,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:39:29,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:39:29,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:39:29,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:39:29,971 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:39:29,972 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:39:29,972 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:39:29,972 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:39:29,974 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:39:29,974 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:39:29,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:39:29,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:39:29,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:39:29,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:39:29,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:39:29,978 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:39:29,978 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:39:29,978 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:39:29,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:39:29,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:39:29,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:39:29,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:39:29,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:39:29,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:39:29,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:39:29,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:39:29,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:39:29,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:39:29,982 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:39:29,982 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:39:29,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:39:29,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:39:29,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:39:29,984 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_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2022-11-19 08:39:30,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:39:30,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:39:30,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:39:30,595 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:39:30,596 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:39:30,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-19 08:39:30,694 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/data/2a206aa12/d68ddfc4e90d4d3ebc666fc2efd286de/FLAGc4902960a [2022-11-19 08:39:31,830 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:39:31,832 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-19 08:39:31,887 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/data/2a206aa12/d68ddfc4e90d4d3ebc666fc2efd286de/FLAGc4902960a [2022-11-19 08:39:32,257 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/data/2a206aa12/d68ddfc4e90d4d3ebc666fc2efd286de [2022-11-19 08:39:32,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:39:32,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:39:32,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:39:32,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:39:32,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:39:32,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:39:32" (1/1) ... [2022-11-19 08:39:32,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e80fccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:32, skipping insertion in model container [2022-11-19 08:39:32,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:39:32" (1/1) ... [2022-11-19 08:39:32,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:39:32,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:39:33,534 WARN L234 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_e262de79-6a69-447e-abce-026e546811b4/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] [2022-11-19 08:39:33,921 WARN L569 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-11-19 08:39:34,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:39:34,337 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 08:39:34,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:39:34,493 WARN L234 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_e262de79-6a69-447e-abce-026e546811b4/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] [2022-11-19 08:39:34,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:39:34,751 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:39:34,864 WARN L234 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_e262de79-6a69-447e-abce-026e546811b4/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] [2022-11-19 08:39:35,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:39:35,241 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:39:35,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35 WrapperNode [2022-11-19 08:39:35,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:39:35,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:39:35,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:39:35,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:39:35,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,542 INFO L138 Inliner]: procedures = 219, calls = 1278, calls flagged for inlining = 89, calls inlined = 89, statements flattened = 3380 [2022-11-19 08:39:35,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:39:35,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:39:35,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:39:35,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:39:35,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:39:35,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:39:35,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:39:35,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:39:35,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (1/1) ... [2022-11-19 08:39:35,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:39:35,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:39:35,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:39:35,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:39:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-11-19 08:39:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-11-19 08:39:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-19 08:39:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-19 08:39:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-19 08:39:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-19 08:39:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 08:39:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:39:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-19 08:39:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:39:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:39:36,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:39:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-11-19 08:39:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-11-19 08:39:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-11-19 08:39:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-11-19 08:39:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-11-19 08:39:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-11-19 08:39:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 08:39:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 08:39:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:39:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:39:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-11-19 08:39:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-11-19 08:39:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-11-19 08:39:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-11-19 08:39:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-19 08:39:36,009 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-19 08:39:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-11-19 08:39:36,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-11-19 08:39:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 08:39:36,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 08:39:36,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 08:39:36,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 08:39:36,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-11-19 08:39:36,012 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-11-19 08:39:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:39:36,012 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:39:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:39:36,013 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:39:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-19 08:39:36,013 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-19 08:39:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-11-19 08:39:36,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-11-19 08:39:36,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:39:36,014 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:39:36,014 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:39:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:39:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-11-19 08:39:36,017 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-11-19 08:39:36,018 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-11-19 08:39:36,018 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-11-19 08:39:36,019 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:39:36,019 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:39:36,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:39:36,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:39:36,020 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-19 08:39:36,021 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-19 08:39:36,021 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 08:39:36,021 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 08:39:36,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-19 08:39:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-19 08:39:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-19 08:39:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:39:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 08:39:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:39:36,024 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-11-19 08:39:36,024 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-11-19 08:39:36,024 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 08:39:36,025 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 08:39:36,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-19 08:39:36,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:39:36,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-19 08:39:36,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-19 08:39:36,026 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 08:39:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 08:39:36,026 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-19 08:39:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-19 08:39:36,027 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 08:39:36,027 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 08:39:36,028 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 08:39:36,028 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 08:39:36,029 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-11-19 08:39:36,029 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-11-19 08:39:36,029 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 08:39:36,029 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 08:39:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-19 08:39:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-19 08:39:36,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 08:39:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 08:39:36,031 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 08:39:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 08:39:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 08:39:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 08:39:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-11-19 08:39:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-11-19 08:39:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:39:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:39:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-11-19 08:39:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-11-19 08:39:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-19 08:39:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-19 08:39:36,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-11-19 08:39:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-11-19 08:39:36,034 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-11-19 08:39:36,035 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-11-19 08:39:36,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-19 08:39:36,036 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-11-19 08:39:36,037 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-11-19 08:39:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-19 08:39:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-19 08:39:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-19 08:39:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-19 08:39:36,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-19 08:39:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:39:36,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:39:36,045 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-11-19 08:39:36,046 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-11-19 08:39:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:39:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-19 08:39:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-11-19 08:39:36,051 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-11-19 08:39:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-11-19 08:39:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-11-19 08:39:36,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-11-19 08:39:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-19 08:39:36,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-19 08:39:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:39:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:39:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:39:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-19 08:39:36,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-19 08:39:36,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-19 08:39:36,055 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-11-19 08:39:36,055 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-11-19 08:39:36,055 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-11-19 08:39:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-11-19 08:39:36,056 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-19 08:39:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-19 08:39:36,056 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 08:39:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 08:39:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 08:39:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 08:39:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-11-19 08:39:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-11-19 08:39:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-19 08:39:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-19 08:39:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:39:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:39:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-11-19 08:39:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-11-19 08:39:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-11-19 08:39:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-11-19 08:39:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-11-19 08:39:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-11-19 08:39:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-19 08:39:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-19 08:39:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-11-19 08:39:36,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-11-19 08:39:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-19 08:39:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-19 08:39:36,060 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-19 08:39:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:39:36,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:39:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 08:39:36,061 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 08:39:37,039 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:39:37,044 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:39:37,173 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:40:32,375 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:40:32,399 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:40:32,399 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:40:32,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:40:32 BoogieIcfgContainer [2022-11-19 08:40:32,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:40:32,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:40:32,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:40:32,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:40:32,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:39:32" (1/3) ... [2022-11-19 08:40:32,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53379cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:40:32, skipping insertion in model container [2022-11-19 08:40:32,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:39:35" (2/3) ... [2022-11-19 08:40:32,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53379cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:40:32, skipping insertion in model container [2022-11-19 08:40:32,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:40:32" (3/3) ... [2022-11-19 08:40:32,426 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-19 08:40:32,451 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:40:32,452 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:40:32,558 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:40:32,567 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@419800c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:40:32,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:40:32,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 1244 states, 857 states have (on average 1.381563593932322) internal successors, (1184), 900 states have internal predecessors, (1184), 320 states have call successors, (320), 66 states have call predecessors, (320), 65 states have return successors, (316), 313 states have call predecessors, (316), 316 states have call successors, (316) [2022-11-19 08:40:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-19 08:40:32,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:40:32,615 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] [2022-11-19 08:40:32,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:40:32,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:40:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1211656686, now seen corresponding path program 1 times [2022-11-19 08:40:32,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:40:32,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438641368] [2022-11-19 08:40:32,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:40:32,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:40:32,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:40:32,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:40:32,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 08:40:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:40:34,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:40:34,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:40:35,161 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:40:35,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:40:35,162 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:40:35,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438641368] [2022-11-19 08:40:35,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438641368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:40:35,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:40:35,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:40:35,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531777220] [2022-11-19 08:40:35,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:40:35,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:40:35,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:40:35,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:40:35,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:40:35,244 INFO L87 Difference]: Start difference. First operand has 1244 states, 857 states have (on average 1.381563593932322) internal successors, (1184), 900 states have internal predecessors, (1184), 320 states have call successors, (320), 66 states have call predecessors, (320), 65 states have return successors, (316), 313 states have call predecessors, (316), 316 states have call successors, (316) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 08:40:37,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:38,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:40:38,290 INFO L93 Difference]: Finished difference Result 3500 states and 5197 transitions. [2022-11-19 08:40:38,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:40:38,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-11-19 08:40:38,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:40:38,379 INFO L225 Difference]: With dead ends: 3500 [2022-11-19 08:40:38,384 INFO L226 Difference]: Without dead ends: 2244 [2022-11-19 08:40:38,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:40:38,411 INFO L413 NwaCegarLoop]: 2072 mSDtfsCounter, 1634 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:40:38,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 3688 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-19 08:40:38,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2022-11-19 08:40:38,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2238. [2022-11-19 08:40:38,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 1528 states have (on average 1.3599476439790577) internal successors, (2078), 1588 states have internal predecessors, (2078), 586 states have call successors, (586), 124 states have call predecessors, (586), 123 states have return successors, (573), 567 states have call predecessors, (573), 573 states have call successors, (573) [2022-11-19 08:40:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 3237 transitions. [2022-11-19 08:40:38,723 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 3237 transitions. Word has length 58 [2022-11-19 08:40:38,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:40:38,729 INFO L495 AbstractCegarLoop]: Abstraction has 2238 states and 3237 transitions. [2022-11-19 08:40:38,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 08:40:38,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 3237 transitions. [2022-11-19 08:40:38,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-19 08:40:38,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:40:38,741 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] [2022-11-19 08:40:38,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:40:38,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:40:38,968 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:40:38,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:40:38,968 INFO L85 PathProgramCache]: Analyzing trace with hash -927809939, now seen corresponding path program 1 times [2022-11-19 08:40:38,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:40:38,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510404377] [2022-11-19 08:40:38,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:40:38,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:40:38,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:40:38,978 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:40:38,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 08:40:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:40:41,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:40:41,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:40:42,006 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:40:42,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:40:42,007 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:40:42,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510404377] [2022-11-19 08:40:42,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510404377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:40:42,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:40:42,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:40:42,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681124764] [2022-11-19 08:40:42,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:40:42,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:40:42,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:40:42,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:40:42,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:40:42,011 INFO L87 Difference]: Start difference. First operand 2238 states and 3237 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 08:40:42,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:40:42,366 INFO L93 Difference]: Finished difference Result 4420 states and 6403 transitions. [2022-11-19 08:40:42,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:40:42,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56 [2022-11-19 08:40:42,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:40:42,402 INFO L225 Difference]: With dead ends: 4420 [2022-11-19 08:40:42,402 INFO L226 Difference]: Without dead ends: 4396 [2022-11-19 08:40:42,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:40:42,408 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 1635 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 3573 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:40:42,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 3573 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:40:42,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2022-11-19 08:40:42,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 4392. [2022-11-19 08:40:42,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4392 states, 3005 states have (on average 1.3594009983361064) internal successors, (4085), 3113 states have internal predecessors, (4085), 1146 states have call successors, (1146), 243 states have call predecessors, (1146), 240 states have return successors, (1134), 1119 states have call predecessors, (1134), 1134 states have call successors, (1134) [2022-11-19 08:40:42,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 6365 transitions. [2022-11-19 08:40:42,693 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 6365 transitions. Word has length 56 [2022-11-19 08:40:42,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:40:42,694 INFO L495 AbstractCegarLoop]: Abstraction has 4392 states and 6365 transitions. [2022-11-19 08:40:42,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 08:40:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 6365 transitions. [2022-11-19 08:40:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 08:40:42,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:40:42,697 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] [2022-11-19 08:40:42,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:40:42,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:40:42,911 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:40:42,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:40:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1301720806, now seen corresponding path program 1 times [2022-11-19 08:40:42,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:40:42,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336033221] [2022-11-19 08:40:42,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:40:42,914 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:40:42,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:40:42,922 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:40:42,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 08:40:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:40:44,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:40:44,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:40:45,775 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:40:45,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:40:45,775 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:40:45,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336033221] [2022-11-19 08:40:45,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336033221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:40:45,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:40:45,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:40:45,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495117920] [2022-11-19 08:40:45,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:40:45,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:40:45,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:40:45,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:40:45,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:40:45,778 INFO L87 Difference]: Start difference. First operand 4392 states and 6365 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 08:40:46,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:40:46,331 INFO L93 Difference]: Finished difference Result 13103 states and 19009 transitions. [2022-11-19 08:40:46,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:40:46,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 57 [2022-11-19 08:40:46,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:40:46,411 INFO L225 Difference]: With dead ends: 13103 [2022-11-19 08:40:46,411 INFO L226 Difference]: Without dead ends: 8726 [2022-11-19 08:40:46,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:40:46,441 INFO L413 NwaCegarLoop]: 2136 mSDtfsCounter, 1634 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 3755 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:40:46,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 3755 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:40:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8726 states. [2022-11-19 08:40:47,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8726 to 8715. [2022-11-19 08:40:47,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8715 states, 5970 states have (on average 1.3603015075376885) internal successors, (8121), 6178 states have internal predecessors, (8121), 2270 states have call successors, (2270), 479 states have call predecessors, (2270), 474 states have return successors, (2252), 2225 states have call predecessors, (2252), 2252 states have call successors, (2252) [2022-11-19 08:40:47,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8715 states to 8715 states and 12643 transitions. [2022-11-19 08:40:47,174 INFO L78 Accepts]: Start accepts. Automaton has 8715 states and 12643 transitions. Word has length 57 [2022-11-19 08:40:47,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:40:47,174 INFO L495 AbstractCegarLoop]: Abstraction has 8715 states and 12643 transitions. [2022-11-19 08:40:47,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-19 08:40:47,175 INFO L276 IsEmpty]: Start isEmpty. Operand 8715 states and 12643 transitions. [2022-11-19 08:40:47,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 08:40:47,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:40:47,179 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] [2022-11-19 08:40:47,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:40:47,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:40:47,395 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:40:47,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:40:47,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1908686028, now seen corresponding path program 1 times [2022-11-19 08:40:47,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:40:47,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513052080] [2022-11-19 08:40:47,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:40:47,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:40:47,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:40:47,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:40:47,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-19 08:40:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:40:49,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 1500 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:40:49,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:40:50,004 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:40:50,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:40:50,008 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:40:50,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513052080] [2022-11-19 08:40:50,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513052080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:40:50,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:40:50,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:40:50,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352896280] [2022-11-19 08:40:50,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:40:50,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:40:50,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:40:50,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:40:50,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:40:50,011 INFO L87 Difference]: Start difference. First operand 8715 states and 12643 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 08:40:50,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:40:50,946 INFO L93 Difference]: Finished difference Result 18564 states and 27130 transitions. [2022-11-19 08:40:50,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:40:50,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2022-11-19 08:40:50,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:40:51,031 INFO L225 Difference]: With dead ends: 18564 [2022-11-19 08:40:51,031 INFO L226 Difference]: Without dead ends: 9864 [2022-11-19 08:40:51,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:40:51,075 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 233 mSDsluCounter, 5535 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 7450 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:40:51,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 7450 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:40:51,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2022-11-19 08:40:51,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 8731. [2022-11-19 08:40:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8731 states, 5982 states have (on average 1.3595787362086258) internal successors, (8133), 6190 states have internal predecessors, (8133), 2270 states have call successors, (2270), 479 states have call predecessors, (2270), 478 states have return successors, (2264), 2229 states have call predecessors, (2264), 2252 states have call successors, (2264) [2022-11-19 08:40:51,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8731 states to 8731 states and 12667 transitions. [2022-11-19 08:40:51,945 INFO L78 Accepts]: Start accepts. Automaton has 8731 states and 12667 transitions. Word has length 75 [2022-11-19 08:40:51,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:40:51,946 INFO L495 AbstractCegarLoop]: Abstraction has 8731 states and 12667 transitions. [2022-11-19 08:40:51,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 08:40:51,948 INFO L276 IsEmpty]: Start isEmpty. Operand 8731 states and 12667 transitions. [2022-11-19 08:40:51,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-19 08:40:51,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:40:51,953 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] [2022-11-19 08:40:52,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:40:52,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:40:52,167 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:40:52,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:40:52,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1375386248, now seen corresponding path program 1 times [2022-11-19 08:40:52,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:40:52,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58838397] [2022-11-19 08:40:52,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:40:52,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:40:52,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:40:52,174 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:40:52,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 08:40:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:40:54,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1502 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-19 08:40:54,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:40:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:40:57,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:40:57,844 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:40:57,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58838397] [2022-11-19 08:40:57,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58838397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:40:57,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:40:57,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-19 08:40:57,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631830482] [2022-11-19 08:40:57,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:40:57,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:40:57,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:40:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:40:57,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:40:57,848 INFO L87 Difference]: Start difference. First operand 8731 states and 12667 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-19 08:41:00,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:02,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:04,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:06,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:42:20,944 INFO L93 Difference]: Finished difference Result 25556 states and 37375 transitions. [2022-11-19 08:42:20,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:42:20,946 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2022-11-19 08:42:20,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:42:21,089 INFO L225 Difference]: With dead ends: 25556 [2022-11-19 08:42:21,089 INFO L226 Difference]: Without dead ends: 16840 [2022-11-19 08:42:21,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2022-11-19 08:42:21,143 INFO L413 NwaCegarLoop]: 2171 mSDtfsCounter, 2642 mSDsluCounter, 20281 mSDsCounter, 0 mSdLazyCounter, 3211 mSolverCounterSat, 245 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2716 SdHoareTripleChecker+Valid, 22452 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 3211 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:42:21,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2716 Valid, 22452 Invalid, 3460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [245 Valid, 3211 Invalid, 4 Unknown, 0 Unchecked, 77.3s Time] [2022-11-19 08:42:21,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16840 states. [2022-11-19 08:42:22,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16840 to 15138. [2022-11-19 08:42:22,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15138 states, 10368 states have (on average 1.3611111111111112) internal successors, (14112), 10729 states have internal predecessors, (14112), 3940 states have call successors, (3940), 828 states have call predecessors, (3940), 829 states have return successors, (3943), 3874 states have call predecessors, (3943), 3922 states have call successors, (3943) [2022-11-19 08:42:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 21995 transitions. [2022-11-19 08:42:22,696 INFO L78 Accepts]: Start accepts. Automaton has 15138 states and 21995 transitions. Word has length 77 [2022-11-19 08:42:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:42:22,697 INFO L495 AbstractCegarLoop]: Abstraction has 15138 states and 21995 transitions. [2022-11-19 08:42:22,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-19 08:42:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 15138 states and 21995 transitions. [2022-11-19 08:42:22,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 08:42:22,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:42:22,702 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:42:22,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:42:22,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:42:22,924 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:42:22,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:42:22,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1342262673, now seen corresponding path program 1 times [2022-11-19 08:42:22,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:42:22,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008578765] [2022-11-19 08:42:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:42:22,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:42:22,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:42:22,930 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:42:22,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-19 08:42:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:42:25,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:42:25,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:42:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:42:27,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:42:27,880 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:42:27,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008578765] [2022-11-19 08:42:27,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008578765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:42:27,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:42:27,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:42:27,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120615187] [2022-11-19 08:42:27,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:42:27,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:42:27,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:42:27,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:42:27,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:42:27,884 INFO L87 Difference]: Start difference. First operand 15138 states and 21995 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-19 08:42:29,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:42:29,671 INFO L93 Difference]: Finished difference Result 45361 states and 65923 transitions. [2022-11-19 08:42:29,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:42:29,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 83 [2022-11-19 08:42:29,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:42:29,871 INFO L225 Difference]: With dead ends: 45361 [2022-11-19 08:42:29,871 INFO L226 Difference]: Without dead ends: 30235 [2022-11-19 08:42:29,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:42:29,936 INFO L413 NwaCegarLoop]: 2114 mSDtfsCounter, 1608 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:42:29,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 3756 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:42:29,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30235 states. [2022-11-19 08:42:33,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30235 to 30186. [2022-11-19 08:42:33,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30186 states, 20687 states have (on average 1.3614347174554067) internal successors, (28164), 21398 states have internal predecessors, (28164), 7848 states have call successors, (7848), 1646 states have call predecessors, (7848), 1650 states have return successors, (7870), 7729 states have call predecessors, (7870), 7828 states have call successors, (7870) [2022-11-19 08:42:33,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30186 states to 30186 states and 43882 transitions. [2022-11-19 08:42:33,378 INFO L78 Accepts]: Start accepts. Automaton has 30186 states and 43882 transitions. Word has length 83 [2022-11-19 08:42:33,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:42:33,380 INFO L495 AbstractCegarLoop]: Abstraction has 30186 states and 43882 transitions. [2022-11-19 08:42:33,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-19 08:42:33,380 INFO L276 IsEmpty]: Start isEmpty. Operand 30186 states and 43882 transitions. [2022-11-19 08:42:33,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-19 08:42:33,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:42:33,392 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] [2022-11-19 08:42:33,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:42:33,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:42:33,615 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:42:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:42:33,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1154703788, now seen corresponding path program 1 times [2022-11-19 08:42:33,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:42:33,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023951617] [2022-11-19 08:42:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:42:33,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:42:33,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:42:33,620 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:42:33,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-19 08:42:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:42:36,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1543 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:42:36,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:42:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:42:37,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:42:37,235 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:42:37,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023951617] [2022-11-19 08:42:37,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023951617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:42:37,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:42:37,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:42:37,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149747281] [2022-11-19 08:42:37,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:42:37,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:42:37,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:42:37,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:42:37,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:42:37,238 INFO L87 Difference]: Start difference. First operand 30186 states and 43882 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:42:39,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:42,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:42:42,165 INFO L93 Difference]: Finished difference Result 60364 states and 87749 transitions. [2022-11-19 08:42:42,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:42:42,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2022-11-19 08:42:42,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:42:42,394 INFO L225 Difference]: With dead ends: 60364 [2022-11-19 08:42:42,394 INFO L226 Difference]: Without dead ends: 30193 [2022-11-19 08:42:42,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:42:42,515 INFO L413 NwaCegarLoop]: 3221 mSDtfsCounter, 1588 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 4891 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:42:42,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 4891 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-11-19 08:42:42,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30193 states. [2022-11-19 08:42:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30193 to 30167. [2022-11-19 08:42:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30167 states, 20668 states have (on average 1.3609928391716664) internal successors, (28129), 21381 states have internal predecessors, (28129), 7848 states have call successors, (7848), 1646 states have call predecessors, (7848), 1650 states have return successors, (7870), 7727 states have call predecessors, (7870), 7828 states have call successors, (7870) [2022-11-19 08:42:45,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30167 states to 30167 states and 43847 transitions. [2022-11-19 08:42:45,466 INFO L78 Accepts]: Start accepts. Automaton has 30167 states and 43847 transitions. Word has length 92 [2022-11-19 08:42:45,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:42:45,467 INFO L495 AbstractCegarLoop]: Abstraction has 30167 states and 43847 transitions. [2022-11-19 08:42:45,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:42:45,468 INFO L276 IsEmpty]: Start isEmpty. Operand 30167 states and 43847 transitions. [2022-11-19 08:42:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-19 08:42:45,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:42:45,474 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:42:45,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:42:45,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:42:45,687 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:42:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:42:45,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1779684316, now seen corresponding path program 1 times [2022-11-19 08:42:45,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:42:45,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582616296] [2022-11-19 08:42:45,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:42:45,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:42:45,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:42:45,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:42:45,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 08:42:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:42:48,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-19 08:42:48,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:43:04,476 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-19 08:43:04,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:43:04,477 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:43:04,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582616296] [2022-11-19 08:43:04,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582616296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:43:04,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:43:04,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-19 08:43:04,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467464286] [2022-11-19 08:43:04,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:43:04,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-19 08:43:04,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:43:04,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-19 08:43:04,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-11-19 08:43:04,480 INFO L87 Difference]: Start difference. First operand 30167 states and 43847 transitions. Second operand has 22 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 16 states have internal predecessors, (55), 7 states have call successors, (14), 3 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2022-11-19 08:43:06,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:42,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:44:42,072 INFO L93 Difference]: Finished difference Result 56974 states and 82825 transitions. [2022-11-19 08:44:42,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-19 08:44:42,074 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 16 states have internal predecessors, (55), 7 states have call successors, (14), 3 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) Word has length 97 [2022-11-19 08:44:42,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:44:42,284 INFO L225 Difference]: With dead ends: 56974 [2022-11-19 08:44:42,285 INFO L226 Difference]: Without dead ends: 26822 [2022-11-19 08:44:42,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=169, Invalid=1553, Unknown=0, NotChecked=0, Total=1722 [2022-11-19 08:44:42,413 INFO L413 NwaCegarLoop]: 3011 mSDtfsCounter, 2230 mSDsluCounter, 47411 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 290 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 50422 SdHoareTripleChecker+Invalid, 3632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:44:42,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 50422 Invalid, 3632 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [290 Valid, 3341 Invalid, 1 Unknown, 0 Unchecked, 81.4s Time] [2022-11-19 08:44:42,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26822 states. [2022-11-19 08:44:44,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26822 to 11864. [2022-11-19 08:44:44,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11864 states, 8114 states have (on average 1.3597485826965738) internal successors, (11033), 8389 states have internal predecessors, (11033), 3097 states have call successors, (3097), 659 states have call predecessors, (3097), 652 states have return successors, (3085), 3046 states have call predecessors, (3085), 3085 states have call successors, (3085) [2022-11-19 08:44:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11864 states to 11864 states and 17215 transitions. [2022-11-19 08:44:44,310 INFO L78 Accepts]: Start accepts. Automaton has 11864 states and 17215 transitions. Word has length 97 [2022-11-19 08:44:44,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:44:44,311 INFO L495 AbstractCegarLoop]: Abstraction has 11864 states and 17215 transitions. [2022-11-19 08:44:44,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 16 states have internal predecessors, (55), 7 states have call successors, (14), 3 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2022-11-19 08:44:44,311 INFO L276 IsEmpty]: Start isEmpty. Operand 11864 states and 17215 transitions. [2022-11-19 08:44:44,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-19 08:44:44,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:44:44,318 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] [2022-11-19 08:44:44,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 08:44:44,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:44:44,531 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:44:44,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:44:44,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1611699544, now seen corresponding path program 1 times [2022-11-19 08:44:44,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:44:44,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804631993] [2022-11-19 08:44:44,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:44:44,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:44:44,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:44:44,537 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:44:44,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-19 08:44:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:44:47,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:44:47,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:44:48,276 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:44:48,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:44:48,276 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:44:48,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804631993] [2022-11-19 08:44:48,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804631993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:44:48,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:44:48,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:44:48,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615057368] [2022-11-19 08:44:48,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:44:48,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:44:48,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:44:48,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:44:48,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:44:48,280 INFO L87 Difference]: Start difference. First operand 11864 states and 17215 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:44:51,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:44:51,708 INFO L93 Difference]: Finished difference Result 22105 states and 32163 transitions. [2022-11-19 08:44:51,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:44:51,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2022-11-19 08:44:51,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:44:51,776 INFO L225 Difference]: With dead ends: 22105 [2022-11-19 08:44:51,776 INFO L226 Difference]: Without dead ends: 10277 [2022-11-19 08:44:51,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:44:51,825 INFO L413 NwaCegarLoop]: 2126 mSDtfsCounter, 1363 mSDsluCounter, 7779 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 9905 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:44:51,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 9905 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 08:44:51,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10277 states. [2022-11-19 08:44:53,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10277 to 9732. [2022-11-19 08:44:53,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9732 states, 6655 states have (on average 1.3589782118707738) internal successors, (9044), 6879 states have internal predecessors, (9044), 2538 states have call successors, (2538), 545 states have call predecessors, (2538), 538 states have return successors, (2528), 2496 states have call predecessors, (2528), 2528 states have call successors, (2528) [2022-11-19 08:44:53,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9732 states to 9732 states and 14110 transitions. [2022-11-19 08:44:53,247 INFO L78 Accepts]: Start accepts. Automaton has 9732 states and 14110 transitions. Word has length 104 [2022-11-19 08:44:53,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:44:53,248 INFO L495 AbstractCegarLoop]: Abstraction has 9732 states and 14110 transitions. [2022-11-19 08:44:53,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:44:53,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9732 states and 14110 transitions. [2022-11-19 08:44:53,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-19 08:44:53,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:44:53,256 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] [2022-11-19 08:44:53,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-19 08:44:53,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:44:53,471 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:44:53,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:44:53,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1015880518, now seen corresponding path program 1 times [2022-11-19 08:44:53,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:44:53,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472980968] [2022-11-19 08:44:53,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:44:53,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:44:53,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:44:53,483 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:44:53,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-19 08:44:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:44:56,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 1559 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:44:56,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:44:57,027 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:44:57,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:44:57,028 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:44:57,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472980968] [2022-11-19 08:44:57,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472980968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:44:57,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:44:57,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:44:57,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550106970] [2022-11-19 08:44:57,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:44:57,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:44:57,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:44:57,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:44:57,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:44:57,031 INFO L87 Difference]: Start difference. First operand 9732 states and 14110 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) [2022-11-19 08:44:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:44:59,642 INFO L93 Difference]: Finished difference Result 11353 states and 16540 transitions. [2022-11-19 08:44:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:44:59,643 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 [2022-11-19 08:44:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:44:59,686 INFO L225 Difference]: With dead ends: 11353 [2022-11-19 08:44:59,687 INFO L226 Difference]: Without dead ends: 7051 [2022-11-19 08:44:59,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:44:59,709 INFO L413 NwaCegarLoop]: 1987 mSDtfsCounter, 917 mSDsluCounter, 7430 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 9417 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:44:59,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 9417 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:44:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7051 states. [2022-11-19 08:45:00,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7051 to 6519. [2022-11-19 08:45:00,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6519 states, 4459 states have (on average 1.3565821933168871) internal successors, (6049), 4609 states have internal predecessors, (6049), 1696 states have call successors, (1696), 367 states have call predecessors, (1696), 363 states have return successors, (1688), 1668 states have call predecessors, (1688), 1688 states have call successors, (1688) [2022-11-19 08:45:00,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6519 states to 6519 states and 9433 transitions. [2022-11-19 08:45:00,726 INFO L78 Accepts]: Start accepts. Automaton has 6519 states and 9433 transitions. Word has length 104 [2022-11-19 08:45:00,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:45:00,726 INFO L495 AbstractCegarLoop]: Abstraction has 6519 states and 9433 transitions. [2022-11-19 08:45:00,726 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) [2022-11-19 08:45:00,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6519 states and 9433 transitions. [2022-11-19 08:45:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-19 08:45:00,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:45:00,734 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] [2022-11-19 08:45:00,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-19 08:45:00,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:00,960 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:45:00,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:45:00,960 INFO L85 PathProgramCache]: Analyzing trace with hash -46043079, now seen corresponding path program 1 times [2022-11-19 08:45:00,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:45:00,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324537620] [2022-11-19 08:45:00,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:45:00,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:00,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:45:00,964 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:45:00,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-19 08:45:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:45:03,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 1562 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:45:03,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:45:04,348 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-19 08:45:04,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:45:04,349 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:45:04,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324537620] [2022-11-19 08:45:04,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324537620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:45:04,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:45:04,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:45:04,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910231969] [2022-11-19 08:45:04,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:45:04,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:45:04,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:45:04,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:45:04,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:45:04,353 INFO L87 Difference]: Start difference. First operand 6519 states and 9433 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 08:45:06,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:45:06,916 INFO L93 Difference]: Finished difference Result 7101 states and 10353 transitions. [2022-11-19 08:45:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:45:06,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2022-11-19 08:45:06,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:45:06,943 INFO L225 Difference]: With dead ends: 7101 [2022-11-19 08:45:06,944 INFO L226 Difference]: Without dead ends: 4955 [2022-11-19 08:45:06,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:45:06,956 INFO L413 NwaCegarLoop]: 2132 mSDtfsCounter, 862 mSDsluCounter, 7490 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 9622 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:45:06,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 9622 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 08:45:06,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2022-11-19 08:45:07,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4400. [2022-11-19 08:45:07,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 3010 states have (on average 1.3528239202657808) internal successors, (4072), 3112 states have internal predecessors, (4072), 1141 states have call successors, (1141), 251 states have call predecessors, (1141), 248 states have return successors, (1133), 1120 states have call predecessors, (1133), 1133 states have call successors, (1133) [2022-11-19 08:45:07,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 6346 transitions. [2022-11-19 08:45:07,474 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 6346 transitions. Word has length 107 [2022-11-19 08:45:07,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:45:07,474 INFO L495 AbstractCegarLoop]: Abstraction has 4400 states and 6346 transitions. [2022-11-19 08:45:07,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 08:45:07,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 6346 transitions. [2022-11-19 08:45:07,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-19 08:45:07,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:45:07,481 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] [2022-11-19 08:45:07,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-19 08:45:07,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:07,707 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:45:07,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:45:07,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1694332208, now seen corresponding path program 1 times [2022-11-19 08:45:07,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:45:07,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730103343] [2022-11-19 08:45:07,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:45:07,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:07,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:45:07,711 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:45:07,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-19 08:45:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:45:10,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 1574 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:45:10,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:45:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-19 08:45:11,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:45:11,094 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:45:11,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730103343] [2022-11-19 08:45:11,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730103343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:45:11,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:45:11,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:45:11,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547555518] [2022-11-19 08:45:11,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:45:11,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:45:11,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:45:11,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:45:11,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:45:11,097 INFO L87 Difference]: Start difference. First operand 4400 states and 6346 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:45:13,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:45:13,618 INFO L93 Difference]: Finished difference Result 8758 states and 12641 transitions. [2022-11-19 08:45:13,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:45:13,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2022-11-19 08:45:13,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:45:13,636 INFO L225 Difference]: With dead ends: 8758 [2022-11-19 08:45:13,637 INFO L226 Difference]: Without dead ends: 4394 [2022-11-19 08:45:13,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:45:13,652 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 792 mSDsluCounter, 6816 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 8779 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:45:13,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 8779 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:45:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2022-11-19 08:45:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 4394. [2022-11-19 08:45:14,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 3007 states have (on average 1.3525108081143997) internal successors, (4067), 3109 states have internal predecessors, (4067), 1139 states have call successors, (1139), 249 states have call predecessors, (1139), 247 states have return successors, (1131), 1119 states have call predecessors, (1131), 1131 states have call successors, (1131) [2022-11-19 08:45:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 6337 transitions. [2022-11-19 08:45:14,167 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 6337 transitions. Word has length 110 [2022-11-19 08:45:14,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:45:14,167 INFO L495 AbstractCegarLoop]: Abstraction has 4394 states and 6337 transitions. [2022-11-19 08:45:14,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:45:14,167 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 6337 transitions. [2022-11-19 08:45:14,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-19 08:45:14,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:45:14,173 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] [2022-11-19 08:45:14,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-19 08:45:14,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:14,386 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:45:14,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:45:14,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1084270242, now seen corresponding path program 1 times [2022-11-19 08:45:14,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:45:14,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369095786] [2022-11-19 08:45:14,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:45:14,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:14,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:45:14,390 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:45:14,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-19 08:45:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:45:16,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:45:16,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:45:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-19 08:45:18,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:45:18,537 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:45:18,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369095786] [2022-11-19 08:45:18,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369095786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:45:18,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:45:18,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:45:18,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732396064] [2022-11-19 08:45:18,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:45:18,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:45:18,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:45:18,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:45:18,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:45:18,541 INFO L87 Difference]: Start difference. First operand 4394 states and 6337 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 08:45:23,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:45:23,952 INFO L93 Difference]: Finished difference Result 7719 states and 11120 transitions. [2022-11-19 08:45:23,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:45:23,953 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2022-11-19 08:45:23,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:45:23,969 INFO L225 Difference]: With dead ends: 7719 [2022-11-19 08:45:23,969 INFO L226 Difference]: Without dead ends: 3361 [2022-11-19 08:45:23,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:45:23,983 INFO L413 NwaCegarLoop]: 1892 mSDtfsCounter, 2668 mSDsluCounter, 8507 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2668 SdHoareTripleChecker+Valid, 10399 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:45:23,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2668 Valid, 10399 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 08:45:23,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2022-11-19 08:45:24,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 3361. [2022-11-19 08:45:24,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 2299 states have (on average 1.3466724662896912) internal successors, (3096), 2376 states have internal predecessors, (3096), 867 states have call successors, (867), 196 states have call predecessors, (867), 194 states have return successors, (860), 851 states have call predecessors, (860), 860 states have call successors, (860) [2022-11-19 08:45:24,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 4823 transitions. [2022-11-19 08:45:24,355 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 4823 transitions. Word has length 109 [2022-11-19 08:45:24,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:45:24,355 INFO L495 AbstractCegarLoop]: Abstraction has 3361 states and 4823 transitions. [2022-11-19 08:45:24,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 08:45:24,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 4823 transitions. [2022-11-19 08:45:24,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-19 08:45:24,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:45:24,364 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] [2022-11-19 08:45:24,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-19 08:45:24,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:24,580 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:45:24,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:45:24,580 INFO L85 PathProgramCache]: Analyzing trace with hash -220159002, now seen corresponding path program 1 times [2022-11-19 08:45:24,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:45:24,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861110595] [2022-11-19 08:45:24,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:45:24,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:24,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:45:24,584 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:45:24,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-19 08:45:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:45:27,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 1594 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:45:27,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:45:28,779 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:45:28,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:45:28,780 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:45:28,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861110595] [2022-11-19 08:45:28,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861110595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:45:28,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:45:28,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:45:28,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714480177] [2022-11-19 08:45:28,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:45:28,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:45:28,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:45:28,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:45:28,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:45:28,783 INFO L87 Difference]: Start difference. First operand 3361 states and 4823 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 08:45:30,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:31,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:45:31,817 INFO L93 Difference]: Finished difference Result 3365 states and 4825 transitions. [2022-11-19 08:45:31,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:45:31,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-11-19 08:45:31,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:45:31,831 INFO L225 Difference]: With dead ends: 3365 [2022-11-19 08:45:31,831 INFO L226 Difference]: Without dead ends: 3362 [2022-11-19 08:45:31,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:45:31,834 INFO L413 NwaCegarLoop]: 3214 mSDtfsCounter, 1568 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:45:31,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1568 Valid, 4831 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-19 08:45:31,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2022-11-19 08:45:32,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3360. [2022-11-19 08:45:32,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 2299 states have (on average 1.3458025228360158) internal successors, (3094), 2375 states have internal predecessors, (3094), 866 states have call successors, (866), 196 states have call predecessors, (866), 194 states have return successors, (860), 851 states have call predecessors, (860), 860 states have call successors, (860) [2022-11-19 08:45:32,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4820 transitions. [2022-11-19 08:45:32,281 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4820 transitions. Word has length 120 [2022-11-19 08:45:32,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:45:32,282 INFO L495 AbstractCegarLoop]: Abstraction has 3360 states and 4820 transitions. [2022-11-19 08:45:32,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 08:45:32,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4820 transitions. [2022-11-19 08:45:32,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-19 08:45:32,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:45:32,287 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] [2022-11-19 08:45:32,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-19 08:45:32,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:32,504 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:45:32,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:45:32,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1933077971, now seen corresponding path program 1 times [2022-11-19 08:45:32,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:45:32,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427220046] [2022-11-19 08:45:32,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:45:32,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:32,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:45:32,508 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:45:32,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-19 08:45:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:45:35,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:45:35,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:45:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:45:37,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:45:37,015 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:45:37,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427220046] [2022-11-19 08:45:37,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427220046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:45:37,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:45:37,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:45:37,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949464636] [2022-11-19 08:45:37,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:45:37,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:45:37,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:45:37,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:45:37,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:45:37,017 INFO L87 Difference]: Start difference. First operand 3360 states and 4820 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:45:39,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:43,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:45:43,469 INFO L93 Difference]: Finished difference Result 4592 states and 6543 transitions. [2022-11-19 08:45:43,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:45:43,469 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2022-11-19 08:45:43,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:45:43,478 INFO L225 Difference]: With dead ends: 4592 [2022-11-19 08:45:43,478 INFO L226 Difference]: Without dead ends: 2252 [2022-11-19 08:45:43,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:45:43,486 INFO L413 NwaCegarLoop]: 1650 mSDtfsCounter, 23 mSDsluCounter, 9876 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 11526 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:45:43,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 11526 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-19 08:45:43,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2022-11-19 08:45:43,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2252. [2022-11-19 08:45:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 1541 states have (on average 1.3432835820895523) internal successors, (2070), 1592 states have internal predecessors, (2070), 580 states have call successors, (580), 131 states have call predecessors, (580), 130 states have return successors, (576), 570 states have call predecessors, (576), 576 states have call successors, (576) [2022-11-19 08:45:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3226 transitions. [2022-11-19 08:45:43,744 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3226 transitions. Word has length 124 [2022-11-19 08:45:43,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:45:43,744 INFO L495 AbstractCegarLoop]: Abstraction has 2252 states and 3226 transitions. [2022-11-19 08:45:43,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:45:43,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3226 transitions. [2022-11-19 08:45:43,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-19 08:45:43,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:45:43,751 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] [2022-11-19 08:45:43,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-19 08:45:43,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:43,976 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:45:43,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:45:43,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1153683656, now seen corresponding path program 1 times [2022-11-19 08:45:43,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:45:43,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354282465] [2022-11-19 08:45:43,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:45:43,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:43,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:45:43,979 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:45:43,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-19 08:45:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:45:47,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:45:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:45:50,210 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 08:45:50,210 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:45:50,212 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:45:50,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-19 08:45:50,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:45:50,435 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:45:50,441 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:45:50,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:45:50 BoogieIcfgContainer [2022-11-19 08:45:50,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:45:50,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:45:50,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:45:50,899 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:45:50,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:40:32" (3/4) ... [2022-11-19 08:45:50,904 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:45:50,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:45:50,906 INFO L158 Benchmark]: Toolchain (without parser) took 378643.34ms. Allocated memory was 71.3MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 45.8MB in the beginning and 525.0MB in the end (delta: -479.2MB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2022-11-19 08:45:50,907 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 71.3MB. Free memory was 53.2MB in the beginning and 53.1MB in the end (delta: 57.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:45:50,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2978.82ms. Allocated memory was 71.3MB in the beginning and 136.3MB in the end (delta: 65.0MB). Free memory was 45.7MB in the beginning and 60.2MB in the end (delta: -14.6MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2022-11-19 08:45:50,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 299.85ms. Allocated memory is still 136.3MB. Free memory was 60.2MB in the beginning and 70.2MB in the end (delta: -10.0MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-11-19 08:45:50,911 INFO L158 Benchmark]: Boogie Preprocessor took 356.07ms. Allocated memory is still 136.3MB. Free memory was 70.2MB in the beginning and 70.3MB in the end (delta: -40.8kB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-11-19 08:45:50,912 INFO L158 Benchmark]: RCFGBuilder took 56503.76ms. Allocated memory was 136.3MB in the beginning and 744.5MB in the end (delta: 608.2MB). Free memory was 70.3MB in the beginning and 400.9MB in the end (delta: -330.7MB). Peak memory consumption was 448.2MB. Max. memory is 16.1GB. [2022-11-19 08:45:50,912 INFO L158 Benchmark]: TraceAbstraction took 318491.37ms. Allocated memory was 744.5MB in the beginning and 2.3GB in the end (delta: 1.6GB). Free memory was 399.9MB in the beginning and 525.0MB in the end (delta: -125.1MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2022-11-19 08:45:50,912 INFO L158 Benchmark]: Witness Printer took 5.49ms. Allocated memory is still 2.3GB. Free memory is still 525.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:45:50,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 71.3MB. Free memory was 53.2MB in the beginning and 53.1MB in the end (delta: 57.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2978.82ms. Allocated memory was 71.3MB in the beginning and 136.3MB in the end (delta: 65.0MB). Free memory was 45.7MB in the beginning and 60.2MB in the end (delta: -14.6MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 299.85ms. Allocated memory is still 136.3MB. Free memory was 60.2MB in the beginning and 70.2MB in the end (delta: -10.0MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 356.07ms. Allocated memory is still 136.3MB. Free memory was 70.2MB in the beginning and 70.3MB in the end (delta: -40.8kB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * RCFGBuilder took 56503.76ms. Allocated memory was 136.3MB in the beginning and 744.5MB in the end (delta: 608.2MB). Free memory was 70.3MB in the beginning and 400.9MB in the end (delta: -330.7MB). Peak memory consumption was 448.2MB. Max. memory is 16.1GB. * TraceAbstraction took 318491.37ms. Allocated memory was 744.5MB in the beginning and 2.3GB in the end (delta: 1.6GB). Free memory was 399.9MB in the beginning and 525.0MB in the end (delta: -125.1MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 5.49ms. Allocated memory is still 2.3GB. Free memory is still 525.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3238]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 5432. Possible FailurePath: [L3261] int LDV_IN_INTERRUPT = 1; [L3939] static ushort idVendor ; [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}; [L3970-L3974] static char product_desc[40U] = { 'P', 'r', 'i', 'n', 't', 'e', 'r', ' ', 'G', 'a', 'd', 'g', 'e', 't', '\000'}; [L3263] int ref_cnt ; [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}; [L3940] static ushort idProduct ; [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}; [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}; [L3937] static struct class *usb_gadget_class ; [L3938] static struct printer_dev usb_printer_gadget ; [L3950] static struct usb_otg_descriptor otg_desc = {3U, 9U, 1U}; [L3928-L3930] static char const shortname[8U] = { 'p', 'r', 'i', 'n', 't', 'e', 'r', '\000'}; [L3946] static unsigned int qlen = 10U; [L3262] int ldv_state_variable_2 ; [L3752] static unsigned int epnum ; [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}; [L3267] int ldv_state_variable_0 ; [L3264] int ldv_state_variable_1 ; [L5895] int ldv_usb_gadget_chrdev = 0; [L3945] static char *iPNPstring ; [L3265] struct file *printer_io_operations_group2 ; [L3266] struct inode *printer_io_operations_group1 ; [L3969] static char manufacturer[50U] ; [L3988-L3990] static struct usb_string strings[4U] = { {1U, (char const *)(& manufacturer)}, {2U, (char const *)(& product_desc)}, {3U, (char const *)(& serial_num)}}; [L3936] static dev_t g_printer_devno ; [L3268] struct usb_gadget *printer_driver_group0 ; [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}; [L3991] static struct usb_gadget_strings stringtab = {1033U, (struct usb_string *)(& strings)}; [L5894] int ldv_usb_gadget_class = 0; [L3953-L3954] static struct usb_interface_descriptor intf_desc = {9U, 4U, 0U, (unsigned char)0, 2U, 7U, 1U, 2U, 0U}; [L3931-L3935] static char const driver_desc[15U] = { 'P', 'r', 'i', 'n', 't', 'e', 'r', ' ', 'G', 'a', 'd', 'g', 'e', 't', '\000'}; [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}; [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}}; [L3943] static char *iProduct ; [L3944] static char *iSerialNum ; [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'}; [L3951-L3952] static struct usb_config_descriptor config_desc = {9U, 2U, (unsigned short)0, 1U, 1U, 0U, 192U, 1U}; [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}; [L3975] static char serial_num[40U] = { '1', '\000'}; [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}; [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 ; [L5896] int ldv_usb_gadget = 0; [L5466] int ldv_retval_1 ; [L5470] int ldv_retval_2 ; [L5469] int ldv_retval_3 ; [L3942] static char *iManufacturer ; [L3941] static ushort bcdDevice ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5494] struct usb_ctrlrequest *ldvarg0 ; [L5495] void *tmp ; [L5496] char *ldvarg7 ; [L5497] void *tmp___0 ; [L5498] struct poll_table_struct *ldvarg3 ; [L5499] void *tmp___1 ; [L5500] loff_t *ldvarg5 ; [L5501] void *tmp___2 ; [L5502] size_t ldvarg6 ; [L5503] size_t tmp___3 ; [L5504] unsigned long ldvarg1 ; [L5505] unsigned long tmp___4 ; [L5506] loff_t *ldvarg8 ; [L5507] void *tmp___5 ; [L5508] int ldvarg4 ; [L5509] int tmp___6 ; [L5510] char *ldvarg10 ; [L5511] void *tmp___7 ; [L5512] size_t ldvarg9 ; [L5513] size_t tmp___8 ; [L5514] unsigned int ldvarg2 ; [L5515] unsigned int tmp___9 ; [L5516] int tmp___10 ; [L5517] int tmp___11 ; [L5518] int tmp___12 ; [L5519] int tmp___13 ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5521] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=8, strings={111:0}, stringtab={114:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5521] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5521] tmp = ldv_zalloc(8UL) [L5522] ldvarg0 = (struct usb_ctrlrequest *)tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5523] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=1, strings={111:0}, stringtab={114:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5523] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5523] tmp___0 = ldv_zalloc(1UL) [L5524] ldvarg7 = (char *)tmp___0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5525] CALL, EXPR ldv_zalloc(16UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=16, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=16, strings={111:0}, stringtab={114:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5525] RET, EXPR ldv_zalloc(16UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5525] tmp___1 = ldv_zalloc(16UL) [L5526] ldvarg3 = (struct poll_table_struct *)tmp___1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5527] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=8, strings={111:0}, stringtab={114:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5527] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5527] tmp___2 = ldv_zalloc(8UL) [L5528] ldvarg5 = (loff_t *)tmp___2 [L5529] tmp___3 = __VERIFIER_nondet_size_t() [L5530] ldvarg6 = tmp___3 [L5531] tmp___4 = __VERIFIER_nondet_ulong() [L5532] ldvarg1 = tmp___4 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=137, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=137, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5533] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=8, strings={111:0}, stringtab={114:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5533] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg1=137, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=137, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5533] tmp___5 = ldv_zalloc(8UL) [L5534] ldvarg8 = (loff_t *)tmp___5 [L5535] tmp___6 = __VERIFIER_nondet_int() [L5536] ldvarg4 = tmp___6 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=137, ldvarg3={0:0}, ldvarg4=137, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=137, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5537] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=1, strings={111:0}, stringtab={114:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5537] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1=137, ldvarg3={0:0}, ldvarg4=137, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=137, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5537] tmp___7 = ldv_zalloc(1UL) [L5538] ldvarg10 = (char *)tmp___7 [L5539] tmp___8 = __VERIFIER_nondet_size_t() [L5540] ldvarg9 = tmp___8 [L5541] tmp___9 = __VERIFIER_nondet_uint() [L5542] ldvarg2 = tmp___9 [L5543] FCALL ldv_initialize() [L5544] ldv_state_variable_1 = 0 [L5545] ref_cnt = 0 [L5546] ldv_state_variable_0 = 1 [L5547] ldv_state_variable_2 = 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=138, ldvarg3={0:0}, ldvarg4=137, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=137, tmp___7={0:0}, tmp___8=0, tmp___9=138, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=138, ldvarg3={0:0}, ldvarg4=137, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=137, tmp___7={0:0}, tmp___8=0, tmp___9=138, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: [L5610] case 1: VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=138, ldvarg3={0:0}, ldvarg4=137, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=137, tmp___7={0:0}, tmp___8=0, tmp___9=138, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5611] COND TRUE ldv_state_variable_0 == 1 [L5612] CALL, EXPR init() [L5416] int status ; [L5417] void *tmp ; [L5418] long tmp___0 ; [L5419] long tmp___1 ; [L5421] CALL, EXPR ldv_create_class() [L5899] void *is_got ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5901] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [\old(size)=120, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3184] void *p ; [L3185] void *tmp ; [L3186] int tmp___0 ; [L3188] tmp___0 = __VERIFIER_nondet_int() [L3189] COND TRUE tmp___0 != 0 [L3190] return ((void *)0); VAL [\old(size)=120, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=120, strings={111:0}, stringtab={114:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5901] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5901] is_got = ldv_malloc(sizeof(struct class)) [L5902] COND TRUE (unsigned long )is_got <= 2012UL VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5903] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5907] COND TRUE ldv_usb_gadget_class == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5911] ldv_usb_gadget_class = 1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5914] return (is_got); VAL [\result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5421] RET, EXPR ldv_create_class() [L5421] tmp = ldv_create_class() [L5422] usb_gadget_class = (struct class *)tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5423] CALL, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5736] long tmp ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5738] CALL, EXPR ldv_is_err(ptr) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5861] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5738] RET, EXPR ldv_is_err(ptr) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5738] tmp = ldv_is_err(ptr) [L5739] return (tmp); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5423] RET, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5423] tmp___1 = IS_ERR((void const *)usb_gadget_class) [L5424] COND FALSE !(tmp___1 != 0L) [L5432] CALL, EXPR ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5762] ldv_func_ret_type ldv_func_res ; [L5763] int tmp ; [L5764] int tmp___0 ; [L5766] CALL, EXPR alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L6074] return __VERIFIER_nondet_int(); [L5766] RET, EXPR alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L5766] tmp = alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L5767] ldv_func_res = tmp [L5768] CALL, EXPR ldv_register_chrdev_region() [L5954] int is_reg ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5956] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5846] int ret ; [L5847] int tmp ; [L5849] CALL, EXPR ldv_undef_int() [L3220] int tmp ; [L3222] tmp = __VERIFIER_nondet_int() [L3223] return (tmp); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5851] COND TRUE ret <= 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5855] return (ret); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5956] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5956] is_reg = ldv_undef_int_nonpositive() [L5957] COND TRUE ! is_reg VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5958] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5962] COND TRUE ldv_usb_gadget_chrdev == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5966] ldv_usb_gadget_chrdev = 1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5969] return (is_reg); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5768] RET, EXPR ldv_register_chrdev_region() [L5768] tmp___0 = ldv_register_chrdev_region() [L5769] return (tmp___0); VAL [\old(ldv_func_arg2)=0, \old(ldv_func_arg3)=1, \result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={112:0}, ldv_func_arg1={112:0}, ldv_func_arg2=0, ldv_func_arg3=1, ldv_func_arg4={94:0}, ldv_func_arg4={94:0}, ldv_func_res=139, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=139, tmp___0=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5432] RET, EXPR ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5432] status = ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5433] COND FALSE !(status != 0) [L5439] CALL, EXPR ldv_usb_gadget_register_driver_9(& printer_driver) [L5783] ldv_func_ret_type___0 ldv_func_res ; [L5784] int tmp ; [L5785] int tmp___0 ; [L5787] CALL, EXPR usb_gadget_register_driver(ldv_func_arg1) [L6157] return __VERIFIER_nondet_int(); [L5787] RET, EXPR usb_gadget_register_driver(ldv_func_arg1) [L5787] tmp = usb_gadget_register_driver(ldv_func_arg1) [L5788] ldv_func_res = tmp [L5789] CALL, EXPR ldv_register_usb_gadget() [L5989] int is_reg ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5991] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5846] int ret ; [L5847] int tmp ; [L5849] CALL, EXPR ldv_undef_int() [L3220] int tmp ; [L3222] tmp = __VERIFIER_nondet_int() [L3223] return (tmp); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5851] COND TRUE ret <= 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5855] return (ret); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5991] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5991] is_reg = ldv_undef_int_nonpositive() [L5992] COND TRUE ! is_reg VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5993] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5997] ldv_usb_gadget = 1 VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L6000] return (is_reg); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5789] RET, EXPR ldv_register_usb_gadget() [L5789] tmp___0 = ldv_register_usb_gadget() [L5790] return (tmp___0); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={124:0}, ldv_func_arg1={124:0}, ldv_func_res=140, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=140, tmp___0=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5439] RET, EXPR ldv_usb_gadget_register_driver_9(& printer_driver) [L5439] status = ldv_usb_gadget_register_driver_9(& printer_driver) [L5440] COND FALSE !(status != 0) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, status=0, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5446] return (status); VAL [\result=0, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, status=0, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5612] RET, EXPR init() [L5612] ldv_retval_2 = init() [L5613] COND FALSE !(ldv_retval_2 != 0) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=138, ldvarg3={0:0}, ldvarg4=137, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=137, tmp___7={0:0}, tmp___8=0, tmp___9=138, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5618] COND TRUE ldv_retval_2 == 0 [L5619] ldv_state_variable_0 = 2 [L5620] ldv_state_variable_1 = 1 [L5621] CALL ldv_initialize_usb_gadget_driver_1() [L5473] void *tmp ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5475] CALL, EXPR ldv_zalloc(1072UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1072, \result={0:0}, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=1072, strings={111:0}, stringtab={114:0}, tmp___0=2147483648, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5475] RET, EXPR ldv_zalloc(1072UL) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5475] tmp = ldv_zalloc(1072UL) [L5476] printer_driver_group0 = (struct usb_gadget *)tmp VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5621] RET ldv_initialize_usb_gadget_driver_1() [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=138, ldvarg3={0:0}, ldvarg4=137, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=137, tmp___7={0:0}, tmp___8=0, tmp___9=138, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=137, ldvarg10={0:0}, ldvarg2=138, ldvarg3={0:0}, ldvarg4=137, ldvarg5={0:0}, ldvarg6=0, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=0, tmp___2={0:0}, tmp___3=0, tmp___4=137, tmp___5={0:0}, tmp___6=137, tmp___7={0:0}, tmp___8=0, tmp___9=138, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5603] COND TRUE ldv_state_variable_0 == 2 && ref_cnt == 0 [L5604] CALL cleanup() [L5451] int status ; VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5453] FCALL mutex_lock_nested(& usb_printer_gadget.lock_printer_io, 0U) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5454] CALL ldv_class_destroy_12(usb_gadget_class) [L5813] FCALL class_destroy(ldv_func_arg1) VAL [__this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5814] CALL ldv_unregister_class() VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5940] COND FALSE !(ldv_usb_gadget == 0) VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5942] CALL ldv_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3238] reach_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={0:0}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, 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={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 67 procedures, 1245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 317.9s, OverallIterations: 16, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 220.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 21736 SdHoareTripleChecker+Valid, 178.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21397 mSDsluCounter, 164466 SdHoareTripleChecker+Invalid, 170.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130899 mSDsCounter, 2044 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6907 IncrementalHoareTripleChecker+Invalid, 8960 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2044 mSolverCounterUnsat, 33567 mSDtfsCounter, 6907 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1429 GetRequests, 1306 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 44.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30186occurred in iteration=6, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 19523 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.8s SsaConstructionTime, 23.3s SatisfiabilityAnalysisTime, 36.1s InterpolantComputationTime, 1505 NumberOfCodeBlocks, 1505 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1358 ConstructedInterpolants, 0 QuantifiedInterpolants, 2638 SizeOfPredicates, 70 NumberOfNonLiveVariables, 23003 ConjunctsInSsa, 135 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 976/976 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 [2022-11-19 08:45:51,149 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-19 08:45:51,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e262de79-6a69-447e-abce-026e546811b4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample