./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-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V --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 ff02e03a986f1a19fc84bb8ebf84ed80dd5601fff7cc4c17c4d87ec97b443afa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:55:42,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:55:42,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:55:42,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:55:42,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:55:42,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:55:42,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:55:42,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:55:42,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:55:42,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:55:42,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:55:42,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:55:42,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:55:42,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:55:42,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:55:42,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:55:42,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:55:42,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:55:42,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:55:42,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:55:42,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:55:42,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:55:42,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:55:42,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:55:42,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:55:42,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:55:42,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:55:42,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:55:42,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:55:42,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:55:42,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:55:42,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:55:42,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:55:42,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:55:42,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:55:42,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:55:42,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:55:42,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:55:42,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:55:42,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:55:42,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:55:42,735 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 01:55:42,761 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:55:42,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:55:42,762 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:55:42,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:55:42,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:55:42,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:55:42,763 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:55:42,764 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:55:42,764 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:55:42,764 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:55:42,764 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:55:42,764 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:55:42,765 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:55:42,765 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:55:42,765 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:55:42,765 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:55:42,766 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:55:42,766 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:55:42,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:55:42,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:55:42,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:55:42,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:55:42,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:55:42,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:55:42,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:55:42,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:55:42,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:55:42,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:55:42,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:55:42,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:55:42,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:55:42,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:55:42,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:55:42,776 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:55:42,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:55:42,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:55:42,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:55:42,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:55:42,778 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_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff02e03a986f1a19fc84bb8ebf84ed80dd5601fff7cc4c17c4d87ec97b443afa [2021-11-23 01:55:43,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:55:43,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:55:43,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:55:43,119 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:55:43,120 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:55:43,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2021-11-23 01:55:43,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/data/f5c6b364e/f25f3ba69f0747f2997b71db97f970e1/FLAG1dd642f35 [2021-11-23 01:55:44,303 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:55:44,304 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2021-11-23 01:55:44,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/data/f5c6b364e/f25f3ba69f0747f2997b71db97f970e1/FLAG1dd642f35 [2021-11-23 01:55:44,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/data/f5c6b364e/f25f3ba69f0747f2997b71db97f970e1 [2021-11-23 01:55:44,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:55:44,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:55:44,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:55:44,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:55:44,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:55:44,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:55:44" (1/1) ... [2021-11-23 01:55:44,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778f928c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:44, skipping insertion in model container [2021-11-23 01:55:44,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:55:44" (1/1) ... [2021-11-23 01:55:44,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:55:44,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:55:52,024 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_466c20ff-3d78-45ee-9a46-dc8af6f228e2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i[636672,636685] [2021-11-23 01:55:52,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:55:52,154 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:55:52,981 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_466c20ff-3d78-45ee-9a46-dc8af6f228e2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i[636672,636685] [2021-11-23 01:55:52,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:55:53,317 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:55:53,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53 WrapperNode [2021-11-23 01:55:53,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:55:53,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:55:53,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:55:53,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:55:53,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (1/1) ... [2021-11-23 01:55:53,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (1/1) ... [2021-11-23 01:55:54,235 INFO L137 Inliner]: procedures = 662, calls = 8707, calls flagged for inlining = 271, calls inlined = 268, statements flattened = 15877 [2021-11-23 01:55:54,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:55:54,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:55:54,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:55:54,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:55:54,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (1/1) ... [2021-11-23 01:55:54,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (1/1) ... [2021-11-23 01:55:54,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (1/1) ... [2021-11-23 01:55:54,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (1/1) ... [2021-11-23 01:55:54,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (1/1) ... [2021-11-23 01:55:54,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (1/1) ... [2021-11-23 01:55:55,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (1/1) ... [2021-11-23 01:55:55,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:55:55,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:55:55,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:55:55,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:55:55,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (1/1) ... [2021-11-23 01:55:55,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:55:55,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:55:55,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:55:55,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c20ff-3d78-45ee-9a46-dc8af6f228e2/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:55:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-23 01:55:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-23 01:55:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread32_locked [2021-11-23 01:55:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread32_locked [2021-11-23 01:55:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_info_clear_status [2021-11-23 01:55:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_info_clear_status [2021-11-23 01:55:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure zd_check_signal [2021-11-23 01:55:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_check_signal [2021-11-23 01:55:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 01:55:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 01:55:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-23 01:55:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-23 01:55:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-11-23 01:55:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-11-23 01:55:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure post_reset [2021-11-23 01:55:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure post_reset [2021-11-23 01:55:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-23 01:55:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-23 01:55:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_init_hw [2021-11-23 01:55:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_init_hw [2021-11-23 01:55:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 01:55:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 01:55:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-11-23 01:55:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-11-23 01:55:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_usbdev [2021-11-23 01:55:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_usbdev [2021-11-23 01:55:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-11-23 01:55:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-11-23 01:55:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_rx [2021-11-23 01:55:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_rx [2021-11-23 01:55:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_set_channel [2021-11-23 01:55:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_set_channel [2021-11-23 01:55:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_clear [2021-11-23 01:55:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_clear [2021-11-23 01:55:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure zd_switch_radio_off [2021-11-23 01:55:55,312 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_switch_radio_off [2021-11-23 01:55:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure free_rx_urb [2021-11-23 01:55:55,312 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rx_urb [2021-11-23 01:55:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_configure_filter [2021-11-23 01:55:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_configure_filter [2021-11-23 01:55:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2021-11-23 01:55:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2021-11-23 01:55:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 01:55:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 01:55:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure fw_reg_addr [2021-11-23 01:55:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_reg_addr [2021-11-23 01:55:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_beacon_get [2021-11-23 01:55:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_beacon_get [2021-11-23 01:55:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure zd_switch_radio_on [2021-11-23 01:55:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_switch_radio_on [2021-11-23 01:55:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 01:55:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_config [2021-11-23 01:55:55,316 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_config [2021-11-23 01:55:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-11-23 01:55:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-11-23 01:55:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_init_mode [2021-11-23 01:55:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_init_mode [2021-11-23 01:55:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-23 01:55:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-23 01:55:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_enable_hwint [2021-11-23 01:55:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_enable_hwint [2021-11-23 01:55:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 01:55:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 01:55:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:55:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_lock_phy_regs [2021-11-23 01:55:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_lock_phy_regs [2021-11-23 01:55:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 01:55:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 01:55:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_to_chip [2021-11-23 01:55:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_to_chip [2021-11-23 01:55:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_free_cur_beacon_locked [2021-11-23 01:55:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_free_cur_beacon_locked [2021-11-23 01:55:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_is_first [2021-11-23 01:55:55,321 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_is_first [2021-11-23 01:55:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async [2021-11-23 01:55:55,321 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async [2021-11-23 01:55:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2021-11-23 01:55:55,322 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2021-11-23 01:55:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 01:55:55,322 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 01:55:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwrite_locked [2021-11-23 01:55:55,322 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwrite_locked [2021-11-23 01:55:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2021-11-23 01:55:55,323 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2021-11-23 01:55:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 01:55:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 01:55:55,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 01:55:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 01:55:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2021-11-23 01:55:55,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2021-11-23 01:55:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_free_cur_beacon [2021-11-23 01:55:55,325 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_free_cur_beacon [2021-11-23 01:55:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure beacon_watchdog_handler [2021-11-23 01:55:55,326 INFO L138 BoogieDeclarations]: Found implementation of procedure beacon_watchdog_handler [2021-11-23 01:55:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_remove_interface [2021-11-23 01:55:55,327 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_remove_interface [2021-11-23 01:55:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:55:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure check_read_regs [2021-11-23 01:55:55,327 INFO L138 BoogieDeclarations]: Found implementation of procedure check_read_regs [2021-11-23 01:55:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_clear [2021-11-23 01:55:55,327 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_clear [2021-11-23 01:55:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx_packet [2021-11-23 01:55:55,328 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx_packet [2021-11-23 01:55:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_stop [2021-11-23 01:55:55,328 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_stop [2021-11-23 01:55:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32a_locked [2021-11-23 01:55:55,329 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32a_locked [2021-11-23 01:55:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure zd1211b_al7230b_finalize [2021-11-23 01:55:55,329 INFO L138 BoogieDeclarations]: Found implementation of procedure zd1211b_al7230b_finalize [2021-11-23 01:55:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 01:55:55,330 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 01:55:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite16_locked [2021-11-23 01:55:55,333 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite16_locked [2021-11-23 01:55:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-23 01:55:55,334 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-23 01:55:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 01:55:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 01:55:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure test_init [2021-11-23 01:55:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure test_init [2021-11-23 01:55:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2021-11-23 01:55:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2021-11-23 01:55:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure request_fw_file [2021-11-23 01:55:55,343 INFO L138 BoogieDeclarations]: Found implementation of procedure request_fw_file [2021-11-23 01:55:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure dump_cr [2021-11-23 01:55:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_cr [2021-11-23 01:55:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure usb_pipe_endpoint [2021-11-23 01:55:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_pipe_endpoint [2021-11-23 01:55:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mc_clear [2021-11-23 01:55:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mc_clear [2021-11-23 01:55:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 01:55:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 01:55:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-23 01:55:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-23 01:55:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:55:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure zd_write_mac_addr_common [2021-11-23 01:55:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_write_mac_addr_common [2021-11-23 01:55:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 01:55:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_prepare_multicast [2021-11-23 01:55:55,346 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_prepare_multicast [2021-11-23 01:55:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-23 01:55:55,346 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-23 01:55:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_tx [2021-11-23 01:55:55,346 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_tx [2021-11-23 01:55:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_hw [2021-11-23 01:55:55,347 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_hw [2021-11-23 01:55:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:55:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-23 01:55:55,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-23 01:55:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_ioread16 [2021-11-23 01:55:55,347 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_ioread16 [2021-11-23 01:55:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:55:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_resume [2021-11-23 01:55:55,348 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_resume [2021-11-23 01:55:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 01:55:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 01:55:55,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 01:55:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-23 01:55:55,348 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-23 01:55:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread32v_locked [2021-11-23 01:55:55,349 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread32v_locked [2021-11-23 01:55:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure get_fw_name [2021-11-23 01:55:55,349 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fw_name [2021-11-23 01:55:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:55:55,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:55:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_is_zd1211b [2021-11-23 01:55:55,350 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_is_zd1211b [2021-11-23 01:55:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-23 01:55:55,350 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-23 01:55:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure set_beacon_interval [2021-11-23 01:55:55,350 INFO L138 BoogieDeclarations]: Found implementation of procedure set_beacon_interval [2021-11-23 01:55:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_filter [2021-11-23 01:55:55,350 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_filter [2021-11-23 01:55:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_synth_set_channel [2021-11-23 01:55:55,351 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_synth_set_channel [2021-11-23 01:55:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2021-11-23 01:55:55,351 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2021-11-23 01:55:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-23 01:55:55,351 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-23 01:55:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async_start [2021-11-23 01:55:55,352 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async_start [2021-11-23 01:55:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_rx [2021-11-23 01:55:55,352 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_rx [2021-11-23 01:55:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure zd1211b_al2230_finalize_rf [2021-11-23 01:55:55,352 INFO L138 BoogieDeclarations]: Found implementation of procedure zd1211b_al2230_finalize_rf [2021-11-23 01:55:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32_locked [2021-11-23 01:55:55,352 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32_locked [2021-11-23 01:55:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure handle_regs_int_override [2021-11-23 01:55:55,353 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_regs_int_override [2021-11-23 01:55:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_set_multicast_hash [2021-11-23 01:55:55,353 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_set_multicast_hash [2021-11-23 01:55:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-23 01:55:55,353 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-23 01:55:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 01:55:55,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 01:55:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure disable_hwint [2021-11-23 01:55:55,354 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_hwint [2021-11-23 01:55:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 01:55:55,354 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 01:55:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_tx_status [2021-11-23 01:55:55,354 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_tx_status [2021-11-23 01:55:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_rxtx [2021-11-23 01:55:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_rxtx [2021-11-23 01:55:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-23 01:55:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-23 01:55:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_unlock_phy_regs [2021-11-23 01:55:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_unlock_phy_regs [2021-11-23 01:55:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-23 01:55:55,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-23 01:55:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 01:55:55,356 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 01:55:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_name [2021-11-23 01:55:55,356 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_name [2021-11-23 01:55:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-11-23 01:55:55,356 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-11-23 01:55:55,357 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-23 01:55:55,357 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-23 01:55:55,357 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_clear [2021-11-23 01:55:55,357 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_clear [2021-11-23 01:55:55,357 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwritev_locked [2021-11-23 01:55:55,357 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwritev_locked [2021-11-23 01:55:55,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:55:55,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:55:55,358 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_wake_queues [2021-11-23 01:55:55,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_wake_queues [2021-11-23 01:55:55,358 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_control_leds [2021-11-23 01:55:55,358 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_control_leds [2021-11-23 01:55:55,358 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-23 01:55:55,358 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-23 01:55:55,358 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 01:55:55,359 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 01:55:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure scnprint_id___0 [2021-11-23 01:55:55,359 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprint_id___0 [2021-11-23 01:55:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_pspoll [2021-11-23 01:55:55,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_pspoll [2021-11-23 01:55:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async_end [2021-11-23 01:55:55,359 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async_end [2021-11-23 01:55:55,360 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-23 01:55:55,360 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-23 01:55:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 01:55:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 01:55:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure upload_code [2021-11-23 01:55:55,365 INFO L138 BoogieDeclarations]: Found implementation of procedure upload_code [2021-11-23 01:55:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 01:55:55,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 01:55:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-23 01:55:55,365 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-23 01:55:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rx_idle_timer_handler [2021-11-23 01:55:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rx_idle_timer_handler [2021-11-23 01:55:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwrite_cr_locked [2021-11-23 01:55:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwrite_cr_locked [2021-11-23 01:55:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~TO~int [2021-11-23 01:55:55,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~TO~int [2021-11-23 01:55:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-23 01:55:55,367 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-23 01:55:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure set_rts_cts [2021-11-23 01:55:55,367 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rts_cts [2021-11-23 01:55:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_mac [2021-11-23 01:55:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_mac [2021-11-23 01:55:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure __zd_usb_disable_rx [2021-11-23 01:55:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __zd_usb_disable_rx [2021-11-23 01:55:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure zd_submit_waiting_urb [2021-11-23 01:55:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_submit_waiting_urb [2021-11-23 01:55:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_stop [2021-11-23 01:55:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_stop [2021-11-23 01:55:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2021-11-23 01:55:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2021-11-23 01:55:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_reset_rx_idle_timer [2021-11-23 01:55:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_reset_rx_idle_timer [2021-11-23 01:55:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 01:55:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 01:55:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-23 01:55:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-23 01:55:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 01:55:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 01:55:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-23 01:55:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-23 01:55:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure zd_set_beacon_interval [2021-11-23 01:55:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_set_beacon_interval [2021-11-23 01:55:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 01:55:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 01:55:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 01:55:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 01:55:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcdDevice [2021-11-23 01:55:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcdDevice [2021-11-23 01:55:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_int [2021-11-23 01:55:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_int [2021-11-23 01:55:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:55:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:55:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-23 01:55:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-23 01:55:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:55:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 01:55:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 01:55:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_init_hw [2021-11-23 01:55:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_init_hw [2021-11-23 01:55:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure __zd_usb_enable_rx [2021-11-23 01:55:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __zd_usb_enable_rx [2021-11-23 01:55:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure usb_int_regs_length [2021-11-23 01:55:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_int_regs_length [2021-11-23 01:55:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:55:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-23 01:55:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-23 01:55:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2021-11-23 01:55:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2021-11-23 01:55:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2021-11-23 01:55:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2021-11-23 01:55:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32 [2021-11-23 01:55:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32 [2021-11-23 01:55:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:55:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_config_beacon [2021-11-23 01:55:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_config_beacon [2021-11-23 01:55:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2021-11-23 01:55:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2021-11-23 01:55:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 01:55:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 01:55:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-23 01:55:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-23 01:55:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-23 01:55:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-23 01:55:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2021-11-23 01:55:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2021-11-23 01:55:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure zd_tx_watchdog_handler [2021-11-23 01:55:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_tx_watchdog_handler [2021-11-23 01:55:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 01:55:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 01:55:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure zd_hw_mac [2021-11-23 01:55:55,377 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_hw_mac [2021-11-23 01:55:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure read_values [2021-11-23 01:55:55,377 INFO L138 BoogieDeclarations]: Found implementation of procedure read_values [2021-11-23 01:55:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-23 01:55:55,377 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-23 01:55:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 01:55:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 01:55:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-23 01:55:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-23 01:55:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_start [2021-11-23 01:55:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_start [2021-11-23 01:55:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-23 01:55:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-23 01:55:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect [2021-11-23 01:55:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect [2021-11-23 01:55:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure zd_intf_to_hw [2021-11-23 01:55:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_intf_to_hw [2021-11-23 01:55:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure inc_addr [2021-11-23 01:55:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_addr [2021-11-23 01:55:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-11-23 01:55:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-11-23 01:55:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_to_mac [2021-11-23 01:55:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_to_mac [2021-11-23 01:55:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwritev_cr_locked [2021-11-23 01:55:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwritev_cr_locked [2021-11-23 01:55:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure pre_reset [2021-11-23 01:55:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pre_reset [2021-11-23 01:55:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-23 01:55:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-23 01:55:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 01:55:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 01:55:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_switch_radio_on [2021-11-23 01:55:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_switch_radio_on [2021-11-23 01:55:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-11-23 01:55:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-11-23 01:55:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 01:55:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 01:55:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2021-11-23 01:55:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2021-11-23 01:55:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_write_vco_cfg [2021-11-23 01:55:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_write_vco_cfg [2021-11-23 01:55:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:55:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_switch_radio_off [2021-11-23 01:55:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_switch_radio_off [2021-11-23 01:55:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ep_regs_out_msg [2021-11-23 01:55:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ep_regs_out_msg [2021-11-23 01:55:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-23 01:55:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-23 01:55:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 01:55:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 01:55:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_chip [2021-11-23 01:55:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_chip [2021-11-23 01:55:55,384 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_hwint [2021-11-23 01:55:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_hwint [2021-11-23 01:55:55,384 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_ioread16v [2021-11-23 01:55:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_ioread16v [2021-11-23 01:55:55,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 01:55:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 01:55:55,384 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_init_hw [2021-11-23 01:55:55,385 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_init_hw [2021-11-23 01:55:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread16_locked [2021-11-23 01:55:55,385 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread16_locked [2021-11-23 01:55:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_init_hw [2021-11-23 01:55:55,385 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_init_hw [2021-11-23 01:55:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_bss_info_changed [2021-11-23 01:55:55,385 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_bss_info_changed [2021-11-23 01:55:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-23 01:55:55,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-23 01:55:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_get_tsf [2021-11-23 01:55:55,386 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_get_tsf [2021-11-23 01:55:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_int [2021-11-23 01:55:55,386 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_int [2021-11-23 01:55:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure zd_process_intr [2021-11-23 01:55:55,386 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_process_intr [2021-11-23 01:55:55,387 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2021-11-23 01:55:55,387 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2021-11-23 01:55:55,387 INFO L130 BoogieDeclarations]: Found specification of procedure link_led_handler [2021-11-23 01:55:55,387 INFO L138 BoogieDeclarations]: Found implementation of procedure link_led_handler [2021-11-23 01:55:55,387 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-23 01:55:55,387 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-23 01:55:55,387 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2021-11-23 01:55:55,388 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2021-11-23 01:55:55,388 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread16v_locked [2021-11-23 01:55:55,388 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread16v_locked [2021-11-23 01:55:55,388 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-23 01:55:55,388 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-23 01:55:55,388 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_enable_int [2021-11-23 01:55:55,388 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_enable_int [2021-11-23 01:55:55,388 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2021-11-23 01:55:55,389 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2021-11-23 01:55:55,389 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 01:55:55,389 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 01:55:55,389 INFO L130 BoogieDeclarations]: Found specification of procedure _zd_iowrite32v_async_locked [2021-11-23 01:55:55,389 INFO L138 BoogieDeclarations]: Found implementation of procedure _zd_iowrite32v_async_locked [2021-11-23 01:55:55,389 INFO L130 BoogieDeclarations]: Found specification of procedure set_mac_and_bssid [2021-11-23 01:55:55,389 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mac_and_bssid [2021-11-23 01:55:55,389 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_tx [2021-11-23 01:55:55,390 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_tx [2021-11-23 01:55:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_add_interface [2021-11-23 01:55:55,390 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_add_interface [2021-11-23 01:55:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:55:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure zd_write_mac_addr [2021-11-23 01:55:55,390 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_write_mac_addr [2021-11-23 01:55:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-23 01:55:55,390 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-23 01:55:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite16a_locked [2021-11-23 01:55:55,391 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite16a_locked [2021-11-23 01:55:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-23 01:55:55,391 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-23 01:55:56,950 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:55:56,955 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:56:01,793 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:00:01,480 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:00:04,397 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:00:04,397 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:00:04,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:00:04 BoogieIcfgContainer [2021-11-23 02:00:04,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:00:04,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:00:04,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:00:04,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:00:04,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:55:44" (1/3) ... [2021-11-23 02:00:04,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e69f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:00:04, skipping insertion in model container [2021-11-23 02:00:04,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:53" (2/3) ... [2021-11-23 02:00:04,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e69f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:00:04, skipping insertion in model container [2021-11-23 02:00:04,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:00:04" (3/3) ... [2021-11-23 02:00:04,414 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2021-11-23 02:00:04,420 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:00:04,420 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:00:04,488 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:00:04,495 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 [2021-11-23 02:00:04,495 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:00:04,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 3323 states, 1957 states have (on average 1.3065917220235053) internal successors, (2557), 2060 states have internal predecessors, (2557), 1157 states have call successors, (1157), 208 states have call predecessors, (1157), 207 states have return successors, (1151), 1142 states have call predecessors, (1151), 1151 states have call successors, (1151) [2021-11-23 02:00:04,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 02:00:04,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:04,599 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:00:04,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:04,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1981086751, now seen corresponding path program 1 times [2021-11-23 02:00:04,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:04,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001497127] [2021-11-23 02:00:04,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:04,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:00:06,105 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:06,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001497127] [2021-11-23 02:00:06,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001497127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:06,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:06,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:00:06,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919004734] [2021-11-23 02:00:06,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:06,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:00:06,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:06,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:00:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:00:06,165 INFO L87 Difference]: Start difference. First operand has 3323 states, 1957 states have (on average 1.3065917220235053) internal successors, (2557), 2060 states have internal predecessors, (2557), 1157 states have call successors, (1157), 208 states have call predecessors, (1157), 207 states have return successors, (1151), 1142 states have call predecessors, (1151), 1151 states have call successors, (1151) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:00:10,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:13,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:19,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:00:32,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:32,094 INFO L93 Difference]: Finished difference Result 9206 states and 13983 transitions. [2021-11-23 02:00:32,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:00:32,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 44 [2021-11-23 02:00:32,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:32,180 INFO L225 Difference]: With dead ends: 9206 [2021-11-23 02:00:32,180 INFO L226 Difference]: Without dead ends: 5854 [2021-11-23 02:00:32,290 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 [2021-11-23 02:00:32,298 INFO L933 BasicCegarLoop]: 6613 mSDtfsCounter, 3734 mSDsluCounter, 4843 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3736 SdHoareTripleChecker+Valid, 10989 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:32,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3736 Valid, 10989 Invalid, 1151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1144 Invalid, 3 Unknown, 0 Unchecked, 25.2s Time] [2021-11-23 02:00:32,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2021-11-23 02:00:32,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 5849. [2021-11-23 02:00:32,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5849 states, 3460 states have (on average 1.3026011560693642) internal successors, (4507), 3624 states have internal predecessors, (4507), 2015 states have call successors, (2015), 375 states have call predecessors, (2015), 373 states have return successors, (2013), 2001 states have call predecessors, (2013), 2013 states have call successors, (2013) [2021-11-23 02:00:32,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5849 states to 5849 states and 8535 transitions. [2021-11-23 02:00:32,993 INFO L78 Accepts]: Start accepts. Automaton has 5849 states and 8535 transitions. Word has length 44 [2021-11-23 02:00:32,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:32,994 INFO L470 AbstractCegarLoop]: Abstraction has 5849 states and 8535 transitions. [2021-11-23 02:00:32,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:00:32,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5849 states and 8535 transitions. [2021-11-23 02:00:33,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 02:00:33,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:33,009 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:00:33,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:00:33,010 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:33,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1422578263, now seen corresponding path program 1 times [2021-11-23 02:00:33,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:33,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182143296] [2021-11-23 02:00:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:33,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 02:00:34,146 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:34,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182143296] [2021-11-23 02:00:34,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182143296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:34,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:34,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:00:34,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721744607] [2021-11-23 02:00:34,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:34,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:00:34,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:34,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:00:34,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:00:34,151 INFO L87 Difference]: Start difference. First operand 5849 states and 8535 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-23 02:00:37,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:45,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:00:53,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:54,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:54,989 INFO L93 Difference]: Finished difference Result 10106 states and 14944 transitions. [2021-11-23 02:00:54,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:00:54,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 81 [2021-11-23 02:00:54,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:55,128 INFO L225 Difference]: With dead ends: 10106 [2021-11-23 02:00:55,129 INFO L226 Difference]: Without dead ends: 10103 [2021-11-23 02:00:55,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:00:55,139 INFO L933 BasicCegarLoop]: 5517 mSDtfsCounter, 4558 mSDsluCounter, 3877 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4558 SdHoareTripleChecker+Valid, 9010 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:55,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4558 Valid, 9010 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 902 Invalid, 2 Unknown, 0 Unchecked, 20.3s Time] [2021-11-23 02:00:55,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2021-11-23 02:00:55,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 10022. [2021-11-23 02:00:55,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10022 states, 5962 states have (on average 1.3030862126803087) internal successors, (7769), 6261 states have internal predecessors, (7769), 3388 states have call successors, (3388), 691 states have call predecessors, (3388), 671 states have return successors, (3647), 3319 states have call predecessors, (3647), 3385 states have call successors, (3647) [2021-11-23 02:00:55,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10022 states to 10022 states and 14804 transitions. [2021-11-23 02:00:55,984 INFO L78 Accepts]: Start accepts. Automaton has 10022 states and 14804 transitions. Word has length 81 [2021-11-23 02:00:55,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:55,985 INFO L470 AbstractCegarLoop]: Abstraction has 10022 states and 14804 transitions. [2021-11-23 02:00:55,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-23 02:00:55,986 INFO L276 IsEmpty]: Start isEmpty. Operand 10022 states and 14804 transitions. [2021-11-23 02:00:56,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-23 02:00:56,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:56,024 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:00:56,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:00:56,025 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:56,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:56,028 INFO L85 PathProgramCache]: Analyzing trace with hash -387704805, now seen corresponding path program 1 times [2021-11-23 02:00:56,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:56,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473499992] [2021-11-23 02:00:56,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:56,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:57,614 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-23 02:00:57,614 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:57,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473499992] [2021-11-23 02:00:57,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473499992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:57,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:57,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:00:57,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717810348] [2021-11-23 02:00:57,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:57,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:00:57,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:57,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:00:57,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:00:57,618 INFO L87 Difference]: Start difference. First operand 10022 states and 14804 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-23 02:01:11,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:22,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:22,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:02:34,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:02:58,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:05,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:34,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:35,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:42,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:44,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:02,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:07,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:18,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:19,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:21,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:23,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:29,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:31,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:43,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:43,309 INFO L93 Difference]: Finished difference Result 33064 states and 49011 transitions. [2021-11-23 02:04:43,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 02:04:43,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 178 [2021-11-23 02:04:43,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:43,542 INFO L225 Difference]: With dead ends: 33064 [2021-11-23 02:04:43,542 INFO L226 Difference]: Without dead ends: 23035 [2021-11-23 02:04:43,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:04:43,640 INFO L933 BasicCegarLoop]: 6642 mSDtfsCounter, 7113 mSDsluCounter, 6868 mSDsCounter, 0 mSdLazyCounter, 23230 mSolverCounterSat, 6245 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 215.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8209 SdHoareTripleChecker+Valid, 12616 SdHoareTripleChecker+Invalid, 29483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6245 IncrementalHoareTripleChecker+Valid, 23230 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 223.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:04:43,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8209 Valid, 12616 Invalid, 29483 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6245 Valid, 23230 Invalid, 8 Unknown, 0 Unchecked, 223.3s Time] [2021-11-23 02:04:43,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23035 states. [2021-11-23 02:04:45,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23035 to 22710. [2021-11-23 02:04:45,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22710 states, 13483 states have (on average 1.302677445672328) internal successors, (17564), 14257 states have internal predecessors, (17564), 7615 states have call successors, (7615), 1616 states have call predecessors, (7615), 1611 states have return successors, (8505), 7435 states have call predecessors, (8505), 7608 states have call successors, (8505) [2021-11-23 02:04:45,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22710 states to 22710 states and 33684 transitions. [2021-11-23 02:04:45,836 INFO L78 Accepts]: Start accepts. Automaton has 22710 states and 33684 transitions. Word has length 178 [2021-11-23 02:04:45,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:45,839 INFO L470 AbstractCegarLoop]: Abstraction has 22710 states and 33684 transitions. [2021-11-23 02:04:45,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-23 02:04:45,841 INFO L276 IsEmpty]: Start isEmpty. Operand 22710 states and 33684 transitions. [2021-11-23 02:04:45,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-23 02:04:45,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:45,883 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:04:45,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:04:45,883 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:04:45,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:45,884 INFO L85 PathProgramCache]: Analyzing trace with hash -63965200, now seen corresponding path program 1 times [2021-11-23 02:04:45,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:04:45,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305611772] [2021-11-23 02:04:45,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:45,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:47,129 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 02:04:47,129 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:04:47,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305611772] [2021-11-23 02:04:47,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305611772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:47,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:47,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:04:47,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718920854] [2021-11-23 02:04:47,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:47,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:04:47,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:04:47,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:04:47,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:04:47,132 INFO L87 Difference]: Start difference. First operand 22710 states and 33684 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 4 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-23 02:04:48,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:59,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:47,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:06:25,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:31,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:55,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:57,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:03,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:27,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:36,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:38,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:40,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:42,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:45,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:46,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:00,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:00,199 INFO L93 Difference]: Finished difference Result 58445 states and 87293 transitions. [2021-11-23 02:08:00,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 02:08:00,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 4 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 188 [2021-11-23 02:08:00,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:00,558 INFO L225 Difference]: With dead ends: 58445 [2021-11-23 02:08:00,558 INFO L226 Difference]: Without dead ends: 35726 [2021-11-23 02:08:00,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:08:00,961 INFO L933 BasicCegarLoop]: 5957 mSDtfsCounter, 5170 mSDsluCounter, 6807 mSDsCounter, 0 mSdLazyCounter, 20851 mSolverCounterSat, 4560 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 183.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6231 SdHoareTripleChecker+Valid, 11859 SdHoareTripleChecker+Invalid, 25417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4560 IncrementalHoareTripleChecker+Valid, 20851 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 190.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:00,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6231 Valid, 11859 Invalid, 25417 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4560 Valid, 20851 Invalid, 6 Unknown, 0 Unchecked, 190.5s Time] [2021-11-23 02:08:01,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35726 states. [2021-11-23 02:08:03,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35726 to 35006. [2021-11-23 02:08:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35006 states, 20768 states have (on average 1.302147534668721) internal successors, (27043), 21979 states have internal predecessors, (27043), 11749 states have call successors, (11749), 2493 states have call predecessors, (11749), 2488 states have return successors, (13330), 11467 states have call predecessors, (13330), 11734 states have call successors, (13330) [2021-11-23 02:08:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35006 states to 35006 states and 52122 transitions. [2021-11-23 02:08:04,021 INFO L78 Accepts]: Start accepts. Automaton has 35006 states and 52122 transitions. Word has length 188 [2021-11-23 02:08:04,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:04,023 INFO L470 AbstractCegarLoop]: Abstraction has 35006 states and 52122 transitions. [2021-11-23 02:08:04,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 4 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-23 02:08:04,023 INFO L276 IsEmpty]: Start isEmpty. Operand 35006 states and 52122 transitions. [2021-11-23 02:08:04,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-23 02:08:04,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:04,070 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:04,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:08:04,070 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:04,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:04,071 INFO L85 PathProgramCache]: Analyzing trace with hash 251513028, now seen corresponding path program 1 times [2021-11-23 02:08:04,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:04,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745061877] [2021-11-23 02:08:04,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:04,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-23 02:08:05,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:05,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745061877] [2021-11-23 02:08:05,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745061877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:05,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:05,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:08:05,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312145724] [2021-11-23 02:08:05,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:05,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:08:05,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:05,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:08:05,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:08:05,325 INFO L87 Difference]: Start difference. First operand 35006 states and 52122 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 4 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-23 02:08:17,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []