./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 367b4f63019d29c39ca623f3d4d0cb3290afe20355c38bfe319a1b34fe36216c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:32:21,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:32:21,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:32:21,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:32:21,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:32:21,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:32:21,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:32:21,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:32:21,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:32:21,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:32:21,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:32:21,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:32:21,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:32:21,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:32:21,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:32:21,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:32:21,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:32:21,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:32:21,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:32:21,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:32:21,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:32:21,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:32:21,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:32:21,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:32:21,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:32:21,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:32:21,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:32:21,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:32:21,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:32:21,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:32:21,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:32:21,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:32:21,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:32:21,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:32:21,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:32:21,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:32:21,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:32:21,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:32:21,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:32:21,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:32:21,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:32:21,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:32:21,760 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:32:21,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:32:21,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:32:21,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:32:21,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:32:21,762 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:32:21,762 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:32:21,763 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:32:21,763 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:32:21,763 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:32:21,764 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:32:21,764 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:32:21,764 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:32:21,764 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:32:21,765 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:32:21,765 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:32:21,765 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:32:21,765 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:32:21,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:32:21,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:32:21,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:32:21,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:32:21,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:32:21,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:32:21,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:32:21,767 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:32:21,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:32:21,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:32:21,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:32:21,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:32:21,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:32:21,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:32:21,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:32:21,770 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:32:21,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:32:21,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:32:21,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:32:21,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:32:21,771 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 367b4f63019d29c39ca623f3d4d0cb3290afe20355c38bfe319a1b34fe36216c [2021-11-25 19:32:22,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:32:22,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:32:22,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:32:22,088 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:32:22,089 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:32:22,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-25 19:32:22,189 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/data/d44634242/95a6f28e8981495fbdcc69d444c7ce8d/FLAGe81b6aee8 [2021-11-25 19:32:23,233 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:32:23,234 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-25 19:32:23,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/data/d44634242/95a6f28e8981495fbdcc69d444c7ce8d/FLAGe81b6aee8 [2021-11-25 19:32:23,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/data/d44634242/95a6f28e8981495fbdcc69d444c7ce8d [2021-11-25 19:32:23,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:32:23,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:32:23,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:32:23,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:32:23,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:32:23,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:32:23" (1/1) ... [2021-11-25 19:32:23,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97751b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:23, skipping insertion in model container [2021-11-25 19:32:23,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:32:23" (1/1) ... [2021-11-25 19:32:23,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:32:23,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:32:27,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i[415639,415652] [2021-11-25 19:32:27,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:32:27,767 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:32:28,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i[415639,415652] [2021-11-25 19:32:28,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:32:28,535 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:32:28,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28 WrapperNode [2021-11-25 19:32:28,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:32:28,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:32:28,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:32:28,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:32:28,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (1/1) ... [2021-11-25 19:32:28,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (1/1) ... [2021-11-25 19:32:29,044 INFO L137 Inliner]: procedures = 526, calls = 4909, calls flagged for inlining = 185, calls inlined = 176, statements flattened = 10347 [2021-11-25 19:32:29,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:32:29,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:32:29,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:32:29,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:32:29,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (1/1) ... [2021-11-25 19:32:29,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (1/1) ... [2021-11-25 19:32:29,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (1/1) ... [2021-11-25 19:32:29,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (1/1) ... [2021-11-25 19:32:29,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (1/1) ... [2021-11-25 19:32:29,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (1/1) ... [2021-11-25 19:32:29,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (1/1) ... [2021-11-25 19:32:29,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:32:29,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:32:29,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:32:29,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:32:29,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (1/1) ... [2021-11-25 19:32:29,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:32:29,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:32:29,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:32:29,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09af4fd7-0674-4500-adff-936554b4a7ea/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:32:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_strings_serialnumber_show [2021-11-25 19:32:29,732 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_strings_serialnumber_show [2021-11-25 19:32:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_link [2021-11-25 19:32:29,732 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_link [2021-11-25 19:32:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function [2021-11-25 19:32:29,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function [2021-11-25 19:32:29,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:32:29,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:32:29,733 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_strings_product_store [2021-11-25 19:32:29,733 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_strings_product_store [2021-11-25 19:32:29,734 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_desc_bmAttributes_store [2021-11-25 19:32:29,734 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_desc_bmAttributes_store [2021-11-25 19:32:29,734 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2021-11-25 19:32:29,734 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2021-11-25 19:32:29,734 INFO L130 BoogieDeclarations]: Found specification of procedure count_ext_prop [2021-11-25 19:32:29,734 INFO L138 BoogieDeclarations]: Found implementation of procedure count_ext_prop [2021-11-25 19:32:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:32:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:32:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ext_prop_data_ptr [2021-11-25 19:32:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ext_prop_data_ptr [2021-11-25 19:32:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_info_attr_release [2021-11-25 19:32:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_info_attr_release [2021-11-25 19:32:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_bind [2021-11-25 19:32:29,736 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_bind [2021-11-25 19:32:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_strings_manufacturer_show [2021-11-25 19:32:29,736 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_strings_manufacturer_show [2021-11-25 19:32:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2021-11-25 19:32:29,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2021-11-25 19:32:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_os_desc_ext_prop_attr_store [2021-11-25 19:32:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_os_desc_ext_prop_attr_store [2021-11-25 19:32:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_prepare [2021-11-25 19:32:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_prepare [2021-11-25 19:32:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure composite_unbind [2021-11-25 19:32:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_unbind [2021-11-25 19:32:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bMaxPacketSize0_show [2021-11-25 19:32:29,738 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bMaxPacketSize0_show [2021-11-25 19:32:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_strings_product_show [2021-11-25 19:32:29,738 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_strings_product_show [2021-11-25 19:32:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_gadget_info [2021-11-25 19:32:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_gadget_info [2021-11-25 19:32:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure config_group_init_type_name [2021-11-25 19:32:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure config_group_init_type_name [2021-11-25 19:32:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2021-11-25 19:32:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2021-11-25 19:32:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_func_lock [2021-11-25 19:32:29,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_func_lock [2021-11-25 19:32:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 19:32:29,740 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 19:32:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_b_vendor_code_store [2021-11-25 19:32:29,741 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_b_vendor_code_store [2021-11-25 19:32:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_use_show [2021-11-25 19:32:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_use_show [2021-11-25 19:32:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure usb_os_desc_ext_prop_attr_show [2021-11-25 19:32:29,743 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_os_desc_ext_prop_attr_show [2021-11-25 19:32:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_ext_prop_ptr [2021-11-25 19:32:29,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_ext_prop_ptr [2021-11-25 19:32:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_strings_attr_store [2021-11-25 19:32:29,743 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_strings_attr_store [2021-11-25 19:32:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_func_lock [2021-11-25 19:32:29,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_func_lock [2021-11-25 19:32:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure function_drop [2021-11-25 19:32:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure function_drop [2021-11-25 19:32:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure to_config_usb_cfg [2021-11-25 19:32:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure to_config_usb_cfg [2021-11-25 19:32:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure config_usb_cfg_attr_store [2021-11-25 19:32:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure config_usb_cfg_attr_store [2021-11-25 19:32:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:32:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:32:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 19:32:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 19:32:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_gadget [2021-11-25 19:32:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_gadget [2021-11-25 19:32:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure ext_prop_data_show [2021-11-25 19:32:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_prop_data_show [2021-11-25 19:32:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure composite_bind [2021-11-25 19:32:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_bind [2021-11-25 19:32:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:32:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure bos_desc [2021-11-25 19:32:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure bos_desc [2021-11-25 19:32:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure composite_disconnect [2021-11-25 19:32:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_disconnect [2021-11-25 19:32:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_idProduct_show [2021-11-25 19:32:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_idProduct_show [2021-11-25 19:32:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_qw_sign_store [2021-11-25 19:32:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_qw_sign_store [2021-11-25 19:32:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 19:32:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 19:32:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_function [2021-11-25 19:32:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_function [2021-11-25 19:32:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_opts_mutex_of_usb_os_desc [2021-11-25 19:32:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_opts_mutex_of_usb_os_desc [2021-11-25 19:32:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 19:32:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 19:32:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_desc_MaxPower_show [2021-11-25 19:32:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_desc_MaxPower_show [2021-11-25 19:32:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_UDC_show [2021-11-25 19:32:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_UDC_show [2021-11-25 19:32:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_zero [2021-11-25 19:32:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_zero [2021-11-25 19:32:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure check_user_usb_string [2021-11-25 19:32:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure check_user_usb_string [2021-11-25 19:32:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure len_ext_prop [2021-11-25 19:32:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure len_ext_prop [2021-11-25 19:32:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_info_attr_store [2021-11-25 19:32:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_info_attr_store [2021-11-25 19:32:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_gadget_info [2021-11-25 19:32:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_gadget_info [2021-11-25 19:32:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:32:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_attr_release [2021-11-25 19:32:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_attr_release [2021-11-25 19:32:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_idProduct_store [2021-11-25 19:32:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_idProduct_store [2021-11-25 19:32:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bDeviceProtocol_show [2021-11-25 19:32:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bDeviceProtocol_show [2021-11-25 19:32:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 19:32:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 19:32:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_name_configuration_show [2021-11-25 19:32:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_name_configuration_show [2021-11-25 19:32:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 19:32:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 19:32:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:32:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:32:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure usb_os_desc_ext_prop_release [2021-11-25 19:32:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_os_desc_ext_prop_release [2021-11-25 19:32:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_name_attr_store [2021-11-25 19:32:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_name_attr_store [2021-11-25 19:32:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure composite_resume [2021-11-25 19:32:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_resume [2021-11-25 19:32:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_unbind [2021-11-25 19:32:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_unbind [2021-11-25 19:32:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:32:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:32:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure ext_prop_data_store [2021-11-25 19:32:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_prop_data_store [2021-11-25 19:32:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure to_cdriver [2021-11-25 19:32:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure to_cdriver [2021-11-25 19:32:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure collect_langs [2021-11-25 19:32:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure collect_langs [2021-11-25 19:32:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_attr_store [2021-11-25 19:32:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_attr_store [2021-11-25 19:32:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure try_get_usb_function_instance [2021-11-25 19:32:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure try_get_usb_function_instance [2021-11-25 19:32:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure count_configs [2021-11-25 19:32:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure count_configs [2021-11-25 19:32:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure kstrdup [2021-11-25 19:32:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrdup [2021-11-25 19:32:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 19:32:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 19:32:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_all_descriptors [2021-11-25 19:32:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_all_descriptors [2021-11-25 19:32:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_strings_strings_drop [2021-11-25 19:32:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_strings_strings_drop [2021-11-25 19:32:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_name_attr_show [2021-11-25 19:32:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_name_attr_show [2021-11-25 19:32:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_idVendor_store [2021-11-25 19:32:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_idVendor_store [2021-11-25 19:32:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-25 19:32:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-25 19:32:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure utf8s_to_utf16s [2021-11-25 19:32:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8s_to_utf16s [2021-11-25 19:32:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_b_vendor_code_show [2021-11-25 19:32:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_b_vendor_code_show [2021-11-25 19:32:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_is_superspeed [2021-11-25 19:32:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_is_superspeed [2021-11-25 19:32:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:32:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure interf_grp_sub_compatible_id_store [2021-11-25 19:32:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure interf_grp_sub_compatible_id_store [2021-11-25 19:32:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_dequeue [2021-11-25 19:32:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_dequeue [2021-11-25 19:32:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure composite_ep0_queue [2021-11-25 19:32:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_ep0_queue [2021-11-25 19:32:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-25 19:32:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-25 19:32:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:32:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bDeviceClass_store [2021-11-25 19:32:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bDeviceClass_store [2021-11-25 19:32:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bcdUSB_show [2021-11-25 19:32:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bcdUSB_show [2021-11-25 19:32:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:32:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_UDC_store [2021-11-25 19:32:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_UDC_store [2021-11-25 19:32:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2021-11-25 19:32:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2021-11-25 19:32:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:32:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:32:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure to_usb_os_desc_ext_prop [2021-11-25 19:32:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure to_usb_os_desc_ext_prop [2021-11-25 19:32:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:32:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:32:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure config_usb_cfg_link [2021-11-25 19:32:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure config_usb_cfg_link [2021-11-25 19:32:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure config_desc_drop [2021-11-25 19:32:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure config_desc_drop [2021-11-25 19:32:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_cleanup [2021-11-25 19:32:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_cleanup [2021-11-25 19:32:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_desc_MaxPower_store [2021-11-25 19:32:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_desc_MaxPower_store [2021-11-25 19:32:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bcdDevice_show [2021-11-25 19:32:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bcdDevice_show [2021-11-25 19:32:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure composite_suspend [2021-11-25 19:32:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_suspend [2021-11-25 19:32:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure ext_prop_drop [2021-11-25 19:32:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_prop_drop [2021-11-25 19:32:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure count_ext_compat [2021-11-25 19:32:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure count_ext_compat [2021-11-25 19:32:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 19:32:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 19:32:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_idVendor_show [2021-11-25 19:32:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_idVendor_show [2021-11-25 19:32:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_desc_bmAttributes_show [2021-11-25 19:32:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_desc_bmAttributes_show [2021-11-25 19:32:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure purge_configs_funcs [2021-11-25 19:32:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure purge_configs_funcs [2021-11-25 19:32:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_is_otg [2021-11-25 19:32:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_is_otg [2021-11-25 19:32:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ext_prop_data_len_ptr [2021-11-25 19:32:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ext_prop_data_len_ptr [2021-11-25 19:32:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:32:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:32:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 19:32:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 19:32:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function_instance [2021-11-25 19:32:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function_instance [2021-11-25 19:32:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_function_instance [2021-11-25 19:32:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_function_instance [2021-11-25 19:32:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-25 19:32:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-25 19:32:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:32:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:32:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_le16p [2021-11-25 19:32:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_le16p [2021-11-25 19:32:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string_ids_tab [2021-11-25 19:32:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string_ids_tab [2021-11-25 19:32:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:32:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:32:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bDeviceClass_show [2021-11-25 19:32:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bDeviceClass_show [2021-11-25 19:32:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-25 19:32:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-25 19:32:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2021-11-25 19:32:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2021-11-25 19:32:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2021-11-25 19:32:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2021-11-25 19:32:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure reset_config [2021-11-25 19:32:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_config [2021-11-25 19:32:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_opts_mutex_of_usb_os_desc [2021-11-25 19:32:29,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_opts_mutex_of_usb_os_desc [2021-11-25 19:32:29,793 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 19:32:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 19:32:29,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-25 19:32:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-25 19:32:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bDeviceProtocol_store [2021-11-25 19:32:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bDeviceProtocol_store [2021-11-25 19:32:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string_copy [2021-11-25 19:32:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string_copy [2021-11-25 19:32:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure to_config_group [2021-11-25 19:32:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure to_config_group [2021-11-25 19:32:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_function [2021-11-25 19:32:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_function [2021-11-25 19:32:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-11-25 19:32:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-11-25 19:32:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:32:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:32:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure to_gadget_info [2021-11-25 19:32:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure to_gadget_info [2021-11-25 19:32:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure __composite_unbind [2021-11-25 19:32:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __composite_unbind [2021-11-25 19:32:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2021-11-25 19:32:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2021-11-25 19:32:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 19:32:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 19:32:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-25 19:32:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-25 19:32:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-25 19:32:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-25 19:32:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_strings_serialnumber_store [2021-11-25 19:32:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_strings_serialnumber_store [2021-11-25 19:32:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure to_gadget_strings [2021-11-25 19:32:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure to_gadget_strings [2021-11-25 19:32:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:32:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 19:32:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 19:32:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bcdDevice_store [2021-11-25 19:32:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bcdDevice_store [2021-11-25 19:32:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-11-25 19:32:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-11-25 19:32:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bDeviceSubClass_show [2021-11-25 19:32:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bDeviceSubClass_show [2021-11-25 19:32:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:32:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure config_usb_cfg_unlink [2021-11-25 19:32:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure config_usb_cfg_unlink [2021-11-25 19:32:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bMaxPacketSize0_store [2021-11-25 19:32:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bMaxPacketSize0_store [2021-11-25 19:32:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-25 19:32:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-25 19:32:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_name_attr_release [2021-11-25 19:32:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_name_attr_release [2021-11-25 19:32:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure to_os_desc [2021-11-25 19:32:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure to_os_desc [2021-11-25 19:32:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:32:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_unlink [2021-11-25 19:32:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_unlink [2021-11-25 19:32:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_info_attr_show [2021-11-25 19:32:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_info_attr_show [2021-11-25 19:32:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 19:32:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 19:32:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2021-11-25 19:32:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2021-11-25 19:32:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-11-25 19:32:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-11-25 19:32:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 19:32:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 19:32:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure le16_add_cpu [2021-11-25 19:32:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure le16_add_cpu [2021-11-25 19:32:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou16 [2021-11-25 19:32:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou16 [2021-11-25 19:32:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure composite_setup_complete [2021-11-25 19:32:29,866 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_setup_complete [2021-11-25 19:32:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure composite_setup [2021-11-25 19:32:29,866 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_setup [2021-11-25 19:32:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_name_strings_drop [2021-11-25 19:32:29,866 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_name_strings_drop [2021-11-25 19:32:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure set_config [2021-11-25 19:32:29,866 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config [2021-11-25 19:32:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-25 19:32:29,866 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-25 19:32:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_function [2021-11-25 19:32:29,866 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_function [2021-11-25 19:32:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_strings_attr_release [2021-11-25 19:32:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_strings_attr_release [2021-11-25 19:32:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure composite_os_desc_req_prepare [2021-11-25 19:32:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_os_desc_req_prepare [2021-11-25 19:32:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_bcd [2021-11-25 19:32:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_bcd [2021-11-25 19:32:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bcdUSB_store [2021-11-25 19:32:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bcdUSB_store [2021-11-25 19:32:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure interf_grp_compatible_id_show [2021-11-25 19:32:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure interf_grp_compatible_id_show [2021-11-25 19:32:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_qw_sign_show [2021-11-25 19:32:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_qw_sign_show [2021-11-25 19:32:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure config_usb_cfg_attr_show [2021-11-25 19:32:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure config_usb_cfg_attr_show [2021-11-25 19:32:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:32:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:32:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_config_only [2021-11-25 19:32:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_config_only [2021-11-25 19:32:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure config_item_put [2021-11-25 19:32:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure config_item_put [2021-11-25 19:32:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure lookup_string [2021-11-25 19:32:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup_string [2021-11-25 19:32:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_CAST [2021-11-25 19:32:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_CAST [2021-11-25 19:32:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:32:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:32:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:32:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure interf_grp_compatible_id_store [2021-11-25 19:32:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure interf_grp_compatible_id_store [2021-11-25 19:32:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_descriptors [2021-11-25 19:32:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_descriptors [2021-11-25 19:32:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure to_usb_os_desc [2021-11-25 19:32:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure to_usb_os_desc [2021-11-25 19:32:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-25 19:32:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-25 19:32:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gstrings_attach [2021-11-25 19:32:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gstrings_attach [2021-11-25 19:32:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure get_default_bcdDevice [2021-11-25 19:32:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure get_default_bcdDevice [2021-11-25 19:32:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure interf_grp_sub_compatible_id_show [2021-11-25 19:32:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure interf_grp_sub_compatible_id_show [2021-11-25 19:32:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_name_configuration_store [2021-11-25 19:32:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_name_configuration_store [2021-11-25 19:32:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2021-11-25 19:32:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2021-11-25 19:32:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_dev_desc_bDeviceSubClass_store [2021-11-25 19:32:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_dev_desc_bDeviceSubClass_store [2021-11-25 19:32:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_is_dualspeed [2021-11-25 19:32:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_is_dualspeed [2021-11-25 19:32:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_strings_attr_show [2021-11-25 19:32:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_strings_attr_show [2021-11-25 19:32:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure ext_prop_type_store [2021-11-25 19:32:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_prop_type_store [2021-11-25 19:32:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_attr_show [2021-11-25 19:32:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_attr_show [2021-11-25 19:32:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-25 19:32:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-25 19:32:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure gadgets_drop [2021-11-25 19:32:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure gadgets_drop [2021-11-25 19:32:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-25 19:32:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-25 19:32:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure ext_prop_type_show [2021-11-25 19:32:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_prop_type_show [2021-11-25 19:32:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_strings_manufacturer_store [2021-11-25 19:32:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_strings_manufacturer_store [2021-11-25 19:32:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2021-11-25 19:32:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2021-11-25 19:32:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 19:32:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 19:32:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure to_gadget_config_name [2021-11-25 19:32:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure to_gadget_config_name [2021-11-25 19:32:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure remove_config [2021-11-25 19:32:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_config [2021-11-25 19:32:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_config_attr_release [2021-11-25 19:32:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_config_attr_release [2021-11-25 19:32:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:32:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 19:32:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 19:32:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure os_desc_use_store [2021-11-25 19:32:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure os_desc_use_store [2021-11-25 19:32:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2021-11-25 19:32:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2021-11-25 19:32:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure get_containers_gs [2021-11-25 19:32:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure get_containers_gs [2021-11-25 19:32:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2021-11-25 19:32:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2021-11-25 19:32:31,191 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:32:31,196 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:32:31,457 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:32:47,277 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:33:08,692 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:33:08,692 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 19:33:08,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:33:08 BoogieIcfgContainer [2021-11-25 19:33:08,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:33:08,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:33:08,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:33:08,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:33:08,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:32:23" (1/3) ... [2021-11-25 19:33:08,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d87a954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:33:08, skipping insertion in model container [2021-11-25 19:33:08,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:28" (2/3) ... [2021-11-25 19:33:08,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d87a954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:33:08, skipping insertion in model container [2021-11-25 19:33:08,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:33:08" (3/3) ... [2021-11-25 19:33:08,712 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-25 19:33:08,718 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:33:08,718 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:33:08,923 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:33:08,929 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:33:08,930 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:33:09,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 3242 states, 2049 states have (on average 1.390922401171303) internal successors, (2850), 2144 states have internal predecessors, (2850), 993 states have call successors, (993), 199 states have call predecessors, (993), 198 states have return successors, (953), 932 states have call predecessors, (953), 953 states have call successors, (953) [2021-11-25 19:33:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1156 [2021-11-25 19:33:09,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:33:09,100 INFO L514 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 72, 72, 72, 72, 72, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:33:09,101 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:33:09,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:33:09,107 INFO L85 PathProgramCache]: Analyzing trace with hash 506348603, now seen corresponding path program 1 times [2021-11-25 19:33:09,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:33:09,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106473523] [2021-11-25 19:33:09,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:33:09,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:33:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:33:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 28402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28402 trivial. 0 not checked. [2021-11-25 19:33:11,814 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:33:11,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106473523] [2021-11-25 19:33:11,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106473523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:33:11,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:33:11,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:33:11,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98023301] [2021-11-25 19:33:11,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:33:11,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:33:11,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:33:11,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:33:11,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:33:11,870 INFO L87 Difference]: Start difference. First operand has 3242 states, 2049 states have (on average 1.390922401171303) internal successors, (2850), 2144 states have internal predecessors, (2850), 993 states have call successors, (993), 199 states have call predecessors, (993), 198 states have return successors, (953), 932 states have call predecessors, (953), 953 states have call successors, (953) Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2021-11-25 19:33:14,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:16,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:20,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:33:20,867 INFO L93 Difference]: Finished difference Result 9260 states and 14094 transitions. [2021-11-25 19:33:20,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:33:20,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) Word has length 1155 [2021-11-25 19:33:20,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:33:20,946 INFO L225 Difference]: With dead ends: 9260 [2021-11-25 19:33:20,946 INFO L226 Difference]: Without dead ends: 6138 [2021-11-25 19:33:20,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:33:20,979 INFO L933 BasicCegarLoop]: 5235 mSDtfsCounter, 4390 mSDsluCounter, 4762 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4393 SdHoareTripleChecker+Valid, 9619 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:33:20,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4393 Valid, 9619 Invalid, 785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 782 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2021-11-25 19:33:21,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6138 states. [2021-11-25 19:33:21,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6138 to 6118. [2021-11-25 19:33:21,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6118 states, 3948 states have (on average 1.3799392097264438) internal successors, (5448), 4045 states have internal predecessors, (5448), 1778 states have call successors, (1778), 392 states have call predecessors, (1778), 391 states have return successors, (1770), 1724 states have call predecessors, (1770), 1767 states have call successors, (1770) [2021-11-25 19:33:21,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 8996 transitions. [2021-11-25 19:33:21,739 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 8996 transitions. Word has length 1155 [2021-11-25 19:33:21,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:33:21,748 INFO L470 AbstractCegarLoop]: Abstraction has 6118 states and 8996 transitions. [2021-11-25 19:33:21,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2021-11-25 19:33:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 8996 transitions. [2021-11-25 19:33:21,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1157 [2021-11-25 19:33:21,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:33:21,827 INFO L514 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 72, 72, 72, 72, 72, 29, 29, 29, 29, 29, 29, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:33:21,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:33:21,828 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:33:21,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:33:21,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1843836070, now seen corresponding path program 1 times [2021-11-25 19:33:21,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:33:21,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800953612] [2021-11-25 19:33:21,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:33:21,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:33:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:33:23,689 INFO L134 CoverageAnalysis]: Checked inductivity of 28404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28404 trivial. 0 not checked. [2021-11-25 19:33:23,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:33:23,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800953612] [2021-11-25 19:33:23,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800953612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:33:23,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:33:23,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:33:23,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99893369] [2021-11-25 19:33:23,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:33:23,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:33:23,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:33:23,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:33:23,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:33:23,697 INFO L87 Difference]: Start difference. First operand 6118 states and 8996 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2021-11-25 19:33:25,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:28,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:33,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:33,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:33:33,662 INFO L93 Difference]: Finished difference Result 17815 states and 26182 transitions. [2021-11-25 19:33:33,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:33:33,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 1156 [2021-11-25 19:33:33,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:33:33,768 INFO L225 Difference]: With dead ends: 17815 [2021-11-25 19:33:33,768 INFO L226 Difference]: Without dead ends: 11904 [2021-11-25 19:33:33,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:33:33,807 INFO L933 BasicCegarLoop]: 5188 mSDtfsCounter, 4273 mSDsluCounter, 4665 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4276 SdHoareTripleChecker+Valid, 9476 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:33:33,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4276 Valid, 9476 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 795 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2021-11-25 19:33:33,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11904 states. [2021-11-25 19:33:34,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11904 to 11883. [2021-11-25 19:33:34,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11883 states, 7700 states have (on average 1.3844155844155843) internal successors, (10660), 7885 states have internal predecessors, (10660), 3405 states have call successors, (3405), 778 states have call predecessors, (3405), 777 states have return successors, (3403), 3307 states have call predecessors, (3403), 3394 states have call successors, (3403) [2021-11-25 19:33:34,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11883 states to 11883 states and 17468 transitions. [2021-11-25 19:33:34,452 INFO L78 Accepts]: Start accepts. Automaton has 11883 states and 17468 transitions. Word has length 1156 [2021-11-25 19:33:34,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:33:34,456 INFO L470 AbstractCegarLoop]: Abstraction has 11883 states and 17468 transitions. [2021-11-25 19:33:34,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2021-11-25 19:33:34,457 INFO L276 IsEmpty]: Start isEmpty. Operand 11883 states and 17468 transitions. [2021-11-25 19:33:34,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1159 [2021-11-25 19:33:34,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:33:34,476 INFO L514 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 72, 72, 72, 72, 72, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:33:34,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:33:34,476 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:33:34,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:33:34,477 INFO L85 PathProgramCache]: Analyzing trace with hash -861744947, now seen corresponding path program 1 times [2021-11-25 19:33:34,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:33:34,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753848465] [2021-11-25 19:33:34,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:33:34,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:33:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:33:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 28402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28402 trivial. 0 not checked. [2021-11-25 19:33:36,009 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:33:36,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753848465] [2021-11-25 19:33:36,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753848465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:33:36,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:33:36,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:33:36,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43859772] [2021-11-25 19:33:36,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:33:36,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:33:36,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:33:36,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:33:36,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:33:36,017 INFO L87 Difference]: Start difference. First operand 11883 states and 17468 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2021-11-25 19:33:38,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:40,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:42,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:46,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:33:46,232 INFO L93 Difference]: Finished difference Result 34995 states and 51447 transitions. [2021-11-25 19:33:46,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:33:46,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) Word has length 1158 [2021-11-25 19:33:46,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:33:46,557 INFO L225 Difference]: With dead ends: 34995 [2021-11-25 19:33:46,557 INFO L226 Difference]: Without dead ends: 23319 [2021-11-25 19:33:46,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:33:46,627 INFO L933 BasicCegarLoop]: 5255 mSDtfsCounter, 4282 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4288 SdHoareTripleChecker+Valid, 9555 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:33:46,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4288 Valid, 9555 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 784 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2021-11-25 19:33:46,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23319 states. [2021-11-25 19:33:47,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23319 to 23299. [2021-11-25 19:33:47,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23299 states, 15112 states have (on average 1.3861831656961354) internal successors, (20948), 15473 states have internal predecessors, (20948), 6645 states have call successors, (6645), 1542 states have call predecessors, (6645), 1541 states have return successors, (6667), 6459 states have call predecessors, (6667), 6634 states have call successors, (6667) [2021-11-25 19:33:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23299 states to 23299 states and 34260 transitions. [2021-11-25 19:33:47,690 INFO L78 Accepts]: Start accepts. Automaton has 23299 states and 34260 transitions. Word has length 1158 [2021-11-25 19:33:47,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:33:47,691 INFO L470 AbstractCegarLoop]: Abstraction has 23299 states and 34260 transitions. [2021-11-25 19:33:47,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2021-11-25 19:33:47,692 INFO L276 IsEmpty]: Start isEmpty. Operand 23299 states and 34260 transitions. [2021-11-25 19:33:47,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1163 [2021-11-25 19:33:47,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:33:47,710 INFO L514 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 72, 72, 72, 72, 72, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:33:47,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:33:47,710 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:33:47,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:33:47,711 INFO L85 PathProgramCache]: Analyzing trace with hash -18494397, now seen corresponding path program 1 times [2021-11-25 19:33:47,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:33:47,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916213600] [2021-11-25 19:33:47,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:33:47,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:33:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:33:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 28402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28402 trivial. 0 not checked. [2021-11-25 19:33:49,186 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:33:49,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916213600] [2021-11-25 19:33:49,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916213600] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:33:49,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:33:49,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:33:49,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449909853] [2021-11-25 19:33:49,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:33:49,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:33:49,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:33:49,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:33:49,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:33:49,190 INFO L87 Difference]: Start difference. First operand 23299 states and 34260 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2021-11-25 19:33:51,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:53,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:56,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:33:59,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:33:59,838 INFO L93 Difference]: Finished difference Result 69210 states and 101746 transitions. [2021-11-25 19:33:59,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:33:59,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) Word has length 1162 [2021-11-25 19:33:59,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:00,108 INFO L225 Difference]: With dead ends: 69210 [2021-11-25 19:34:00,108 INFO L226 Difference]: Without dead ends: 46118 [2021-11-25 19:34:00,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:34:00,214 INFO L933 BasicCegarLoop]: 5296 mSDtfsCounter, 4297 mSDsluCounter, 4687 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4300 SdHoareTripleChecker+Valid, 9605 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:00,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4300 Valid, 9605 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 780 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2021-11-25 19:34:00,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46118 states. [2021-11-25 19:34:02,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46118 to 46091. [2021-11-25 19:34:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46091 states, 29948 states have (on average 1.3882730065446773) internal successors, (41576), 30661 states have internal predecessors, (41576), 13061 states have call successors, (13061), 3082 states have call predecessors, (13061), 3081 states have return successors, (13119), 12699 states have call predecessors, (13119), 13050 states have call successors, (13119) [2021-11-25 19:34:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46091 states to 46091 states and 67756 transitions. [2021-11-25 19:34:02,633 INFO L78 Accepts]: Start accepts. Automaton has 46091 states and 67756 transitions. Word has length 1162 [2021-11-25 19:34:02,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:02,634 INFO L470 AbstractCegarLoop]: Abstraction has 46091 states and 67756 transitions. [2021-11-25 19:34:02,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2021-11-25 19:34:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 46091 states and 67756 transitions. [2021-11-25 19:34:02,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1158 [2021-11-25 19:34:02,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:02,652 INFO L514 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 72, 72, 72, 72, 72, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:02,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:34:02,653 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:34:02,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:02,654 INFO L85 PathProgramCache]: Analyzing trace with hash -456985401, now seen corresponding path program 1 times [2021-11-25 19:34:02,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:02,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914709064] [2021-11-25 19:34:02,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:02,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 28402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28402 trivial. 0 not checked. [2021-11-25 19:34:04,601 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:04,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914709064] [2021-11-25 19:34:04,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914709064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:04,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:04,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:34:04,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878553691] [2021-11-25 19:34:04,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:04,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:34:04,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:04,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:34:04,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:34:04,605 INFO L87 Difference]: Start difference. First operand 46091 states and 67756 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (105), 2 states have call predecessors, (105), 1 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) [2021-11-25 19:34:06,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:34:09,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:34:15,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:15,444 INFO L93 Difference]: Finished difference Result 136767 states and 200995 transitions. [2021-11-25 19:34:15,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:34:15,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (105), 2 states have call predecessors, (105), 1 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) Word has length 1157 [2021-11-25 19:34:15,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:15,883 INFO L225 Difference]: With dead ends: 136767 [2021-11-25 19:34:15,883 INFO L226 Difference]: Without dead ends: 90883 [2021-11-25 19:34:16,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:34:16,086 INFO L933 BasicCegarLoop]: 5286 mSDtfsCounter, 4203 mSDsluCounter, 4686 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4206 SdHoareTripleChecker+Valid, 9595 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:16,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4206 Valid, 9595 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 779 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2021-11-25 19:34:16,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90883 states. [2021-11-25 19:34:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90883 to 90875. [2021-11-25 19:34:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90875 states, 59236 states have (on average 1.391181038557634) internal successors, (82408), 60637 states have internal predecessors, (82408), 25477 states have call successors, (25477), 6162 states have call predecessors, (25477), 6161 states have return successors, (25607), 24779 states have call predecessors, (25607), 25466 states have call successors, (25607) [2021-11-25 19:34:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90875 states to 90875 states and 133492 transitions. [2021-11-25 19:34:20,894 INFO L78 Accepts]: Start accepts. Automaton has 90875 states and 133492 transitions. Word has length 1157 [2021-11-25 19:34:20,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:34:20,895 INFO L470 AbstractCegarLoop]: Abstraction has 90875 states and 133492 transitions. [2021-11-25 19:34:20,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (105), 2 states have call predecessors, (105), 1 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) [2021-11-25 19:34:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 90875 states and 133492 transitions. [2021-11-25 19:34:20,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1162 [2021-11-25 19:34:20,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:34:20,917 INFO L514 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 72, 72, 72, 72, 72, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:34:20,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:34:20,917 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:34:20,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:34:20,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1400858919, now seen corresponding path program 1 times [2021-11-25 19:34:20,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:34:20,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13044558] [2021-11-25 19:34:20,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:34:20,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:34:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:22,666 INFO L134 CoverageAnalysis]: Checked inductivity of 28402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28402 trivial. 0 not checked. [2021-11-25 19:34:22,666 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:22,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13044558] [2021-11-25 19:34:22,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13044558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:34:22,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:34:22,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:34:22,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697103843] [2021-11-25 19:34:22,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:34:22,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:34:22,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:34:22,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:34:22,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:34:22,670 INFO L87 Difference]: Start difference. First operand 90875 states and 133492 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (108), 2 states have call predecessors, (108), 1 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2021-11-25 19:34:24,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:34:27,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:34:36,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:34:36,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:34:36,573 INFO L93 Difference]: Finished difference Result 270202 states and 396762 transitions. [2021-11-25 19:34:36,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:34:36,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (108), 2 states have call predecessors, (108), 1 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) Word has length 1161 [2021-11-25 19:34:36,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:34:37,450 INFO L225 Difference]: With dead ends: 270202 [2021-11-25 19:34:37,450 INFO L226 Difference]: Without dead ends: 179534 [2021-11-25 19:34:38,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:34:38,197 INFO L933 BasicCegarLoop]: 5296 mSDtfsCounter, 4212 mSDsluCounter, 4665 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4215 SdHoareTripleChecker+Valid, 9584 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:34:38,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4215 Valid, 9584 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 802 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2021-11-25 19:34:38,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179534 states. [2021-11-25 19:34:43,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179534 to 179499.