./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:06:09,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:06:09,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:06:09,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:06:09,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:06:09,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:06:09,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:06:09,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:06:09,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:06:09,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:06:09,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:06:09,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:06:09,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:06:09,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:06:09,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:06:09,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:06:09,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:06:09,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:06:09,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:06:09,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:06:09,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:06:09,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:06:09,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:06:09,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:06:09,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:06:09,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:06:09,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:06:09,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:06:09,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:06:09,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:06:09,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:06:09,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:06:09,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:06:09,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:06:09,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:06:09,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:06:09,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:06:09,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:06:09,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:06:09,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:06:09,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:06:09,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:06:09,998 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:06:09,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:06:09,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:06:09,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:06:10,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:06:10,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:06:10,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:06:10,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:06:10,001 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:06:10,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:06:10,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:06:10,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:06:10,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:06:10,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:06:10,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:06:10,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:06:10,002 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:06:10,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:06:10,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:06:10,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:06:10,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:06:10,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:06:10,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:06:10,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:06:10,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:06:10,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:06:10,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:06:10,005 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:06:10,005 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:06:10,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:06:10,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:06:10,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 [2021-12-21 16:06:10,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:06:10,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:06:10,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:06:10,218 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:06:10,219 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:06:10,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2021-12-21 16:06:10,260 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823c325c0/18807dabf0da44b3abab19ed8c1033d5/FLAGfc3b5f379 [2021-12-21 16:06:10,873 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:06:10,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2021-12-21 16:06:10,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823c325c0/18807dabf0da44b3abab19ed8c1033d5/FLAGfc3b5f379 [2021-12-21 16:06:11,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823c325c0/18807dabf0da44b3abab19ed8c1033d5 [2021-12-21 16:06:11,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:06:11,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:06:11,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:06:11,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:06:11,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:06:11,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:06:11" (1/1) ... [2021-12-21 16:06:11,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a56781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:11, skipping insertion in model container [2021-12-21 16:06:11,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:06:11" (1/1) ... [2021-12-21 16:06:11,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:06:11,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:06:13,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2021-12-21 16:06:13,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:06:13,568 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:06:13,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2021-12-21 16:06:13,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:06:14,050 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:06:14,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14 WrapperNode [2021-12-21 16:06:14,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:06:14,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:06:14,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:06:14,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:06:14,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,382 INFO L137 Inliner]: procedures = 395, calls = 4058, calls flagged for inlining = 199, calls inlined = 146, statements flattened = 7281 [2021-12-21 16:06:14,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:06:14,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:06:14,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:06:14,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:06:14,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:06:14,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:06:14,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:06:14,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:06:14,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:06:14,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:06:14,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 16:06:14,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 16:06:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_wait_until_sent [2021-12-21 16:06:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_wait_until_sent [2021-12-21 16:06:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-21 16:06:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 16:06:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 16:06:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_start [2021-12-21 16:06:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_start [2021-12-21 16:06:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_txidle [2021-12-21 16:06:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_txidle [2021-12-21 16:06:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2021-12-21 16:06:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2021-12-21 16:06:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:06:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:06:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopback_frame [2021-12-21 16:06:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopback_frame [2021-12-21 16:06:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-21 16:06:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-21 16:06:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_receiver [2021-12-21 16:06:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_receiver [2021-12-21 16:06:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_serial_signals [2021-12-21 16:06:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_serial_signals [2021-12-21 16:06:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_trace_block [2021-12-21 16:06:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_trace_block [2021-12-21 16:06:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-21 16:06:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-21 16:06:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-21 16:06:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-21 16:06:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mgsl_ops_disconnect_2 [2021-12-21 16:06:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mgsl_ops_disconnect_2 [2021-12-21 16:06:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2021-12-21 16:06:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2021-12-21 16:06:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:06:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:06:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-21 16:06:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2021-12-21 16:06:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2021-12-21 16:06:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure load_next_tx_holding_buffer [2021-12-21 16:06:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure load_next_tx_holding_buffer [2021-12-21 16:06:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:06:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:06:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-21 16:06:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-21 16:06:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:06:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-21 16:06:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-21 16:06:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-21 16:06:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-21 16:06:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-21 16:06:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-21 16:06:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-21 16:06:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-21 16:06:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 16:06:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 16:06:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2021-12-21 16:06:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2021-12-21 16:06:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutDmaReg [2021-12-21 16:06:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutDmaReg [2021-12-21 16:06:14,770 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 16:06:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 16:06:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_cancel_transmit [2021-12-21 16:06:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_cancel_transmit [2021-12-21 16:06:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure usc_load_txfifo [2021-12-21 16:06:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_load_txfifo [2021-12-21 16:06:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-21 16:06:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-21 16:06:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2021-12-21 16:06:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2021-12-21 16:06:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:06:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-21 16:06:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-21 16:06:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 16:06:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 16:06:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-21 16:06:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-21 16:06:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:06:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:06:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure usc_reset [2021-12-21 16:06:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_reset [2021-12-21 16:06:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_free_frame_memory [2021-12-21 16:06:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_free_frame_memory [2021-12-21 16:06:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InReg [2021-12-21 16:06:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InReg [2021-12-21 16:06:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-21 16:06:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-21 16:06:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure usc_enable_loopback [2021-12-21 16:06:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_enable_loopback [2021-12-21 16:06:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_load_tx_dma_buffer [2021-12-21 16:06:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_load_tx_dma_buffer [2021-12-21 16:06:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure usc_DmaCmd [2021-12-21 16:06:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_DmaCmd [2021-12-21 16:06:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_buffer [2021-12-21 16:06:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_buffer [2021-12-21 16:06:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-21 16:06:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-21 16:06:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-21 16:06:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-21 16:06:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure usc_RTCmd [2021-12-21 16:06:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_RTCmd [2021-12-21 16:06:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:06:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_sdlc_mode [2021-12-21 16:06:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_sdlc_mode [2021-12-21 16:06:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_receiver [2021-12-21 16:06:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_receiver [2021-12-21 16:06:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:06:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:06:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 16:06:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-21 16:06:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-21 16:06:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_add_device [2021-12-21 16:06:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_add_device [2021-12-21 16:06:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_unthrottle [2021-12-21 16:06:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_unthrottle [2021-12-21 16:06:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_throttle [2021-12-21 16:06:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_throttle [2021-12-21 16:06:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutReg [2021-12-21 16:06:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutReg [2021-12-21 16:06:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 16:06:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 16:06:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2021-12-21 16:06:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2021-12-21 16:06:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_set_termios [2021-12-21 16:06:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_set_termios [2021-12-21 16:06:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-21 16:06:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-21 16:06:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 16:06:14,788 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 16:06:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_transmitter [2021-12-21 16:06:14,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_transmitter [2021-12-21 16:06:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:06:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:06:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-21 16:06:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-21 16:06:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:06:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:06:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_chars [2021-12-21 16:06:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_chars [2021-12-21 16:06:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-21 16:06:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-21 16:06:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-21 16:06:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-21 16:06:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_send_xchar [2021-12-21 16:06:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_send_xchar [2021-12-21 16:06:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_change_params [2021-12-21 16:06:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_change_params [2021-12-21 16:06:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:06:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:06:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:06:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:06:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure usc_get_serial_signals [2021-12-21 16:06:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_get_serial_signals [2021-12-21 16:06:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_reset_rx_dma_buffers [2021-12-21 16:06:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_reset_rx_dma_buffers [2021-12-21 16:06:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:06:14,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:06:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 16:06:14,796 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 16:06:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_transmitter [2021-12-21 16:06:14,796 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_transmitter [2021-12-21 16:06:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-21 16:06:14,796 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-21 16:06:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-21 16:06:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-21 16:06:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:06:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:06:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_paranoia_check [2021-12-21 16:06:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_paranoia_check [2021-12-21 16:06:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InDmaReg [2021-12-21 16:06:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InDmaReg [2021-12-21 16:06:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:06:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:06:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_active [2021-12-21 16:06:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_active [2021-12-21 16:06:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_stop [2021-12-21 16:06:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_stop [2021-12-21 16:06:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-21 16:06:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-21 16:06:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:06:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_remove_one [2021-12-21 16:06:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_remove_one [2021-12-21 16:06:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-21 16:06:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-21 16:06:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_cleanup [2021-12-21 16:06:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_cleanup [2021-12-21 16:06:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-21 16:06:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-21 16:06:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 16:06:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 16:06:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-21 16:06:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-21 16:06:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-21 16:06:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-21 16:06:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-21 16:06:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-21 16:06:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_write_room [2021-12-21 16:06:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_write_room [2021-12-21 16:06:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_break [2021-12-21 16:06:14,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_break [2021-12-21 16:06:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_allocate_device [2021-12-21 16:06:14,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_allocate_device [2021-12-21 16:06:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-21 16:06:14,803 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-21 16:06:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_install [2021-12-21 16:06:14,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_install [2021-12-21 16:06:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2021-12-21 16:06:14,804 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2021-12-21 16:06:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_release_resources [2021-12-21 16:06:14,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_release_resources [2021-12-21 16:06:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-21 16:06:14,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-21 16:06:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 16:06:14,804 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 16:06:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 16:06:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 16:06:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_send_done [2021-12-21 16:06:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_send_done [2021-12-21 16:06:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 16:06:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 16:06:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-21 16:06:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-21 16:06:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:06:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:06:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_ioctl [2021-12-21 16:06:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_ioctl [2021-12-21 16:06:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-21 16:06:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-21 16:06:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:06:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:06:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:06:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure msgl_get_icount [2021-12-21 16:06:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure msgl_get_icount [2021-12-21 16:06:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_chars_in_buffer [2021-12-21 16:06:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_chars_in_buffer [2021-12-21 16:06:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-21 16:06:14,808 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-21 16:06:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-21 16:06:14,808 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-21 16:06:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-21 16:06:14,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-21 16:06:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_put_char [2021-12-21 16:06:14,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_put_char [2021-12-21 16:06:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_program_hw [2021-12-21 16:06:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_program_hw [2021-12-21 16:06:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2021-12-21 16:06:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2021-12-21 16:06:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_hangup [2021-12-21 16:06:14,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_hangup [2021-12-21 16:06:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-21 16:06:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-21 16:06:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-12-21 16:06:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-12-21 16:06:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-21 16:06:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-21 16:06:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:06:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_alloc_frame_memory [2021-12-21 16:06:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_alloc_frame_memory [2021-12-21 16:06:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-21 16:06:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-21 16:06:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-21 16:06:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-21 16:06:15,581 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:06:15,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:06:37,874 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:06:37,889 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:06:37,889 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:06:37,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:06:37 BoogieIcfgContainer [2021-12-21 16:06:37,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:06:37,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:06:37,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:06:37,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:06:37,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:06:11" (1/3) ... [2021-12-21 16:06:37,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d31df53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:06:37, skipping insertion in model container [2021-12-21 16:06:37,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14" (2/3) ... [2021-12-21 16:06:37,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d31df53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:06:37, skipping insertion in model container [2021-12-21 16:06:37,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:06:37" (3/3) ... [2021-12-21 16:06:37,899 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2021-12-21 16:06:37,903 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:06:37,903 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:06:37,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:06:37,973 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 16:06:37,974 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:06:38,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 3211 states, 2199 states have (on average 1.4115507048658482) internal successors, (3104), 2276 states have internal predecessors, (3104), 890 states have call successors, (890), 120 states have call predecessors, (890), 120 states have return successors, (890), 870 states have call predecessors, (890), 890 states have call successors, (890) [2021-12-21 16:06:38,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-21 16:06:38,052 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:38,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:06:38,053 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:38,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:38,057 INFO L85 PathProgramCache]: Analyzing trace with hash -932140242, now seen corresponding path program 1 times [2021-12-21 16:06:38,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:38,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216687031] [2021-12-21 16:06:38,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:38,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:38,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:06:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:38,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:38,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:38,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216687031] [2021-12-21 16:06:38,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216687031] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:38,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:38,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:06:38,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118343154] [2021-12-21 16:06:38,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:38,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:06:38,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:38,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:06:38,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:06:38,710 INFO L87 Difference]: Start difference. First operand has 3211 states, 2199 states have (on average 1.4115507048658482) internal successors, (3104), 2276 states have internal predecessors, (3104), 890 states have call successors, (890), 120 states have call predecessors, (890), 120 states have return successors, (890), 870 states have call predecessors, (890), 890 states have call successors, (890) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:06:42,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:06:44,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:06:50,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:06:52,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:06:55,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:06:57,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:07:00,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:07:03,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:07:05,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:07:07,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:07:09,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:07:11,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:07:13,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:07:15,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:07:17,983 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 [] [2021-12-21 16:07:20,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:07:20,900 INFO L93 Difference]: Finished difference Result 9912 states and 15267 transitions. [2021-12-21 16:07:20,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:07:20,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-21 16:07:20,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:07:20,964 INFO L225 Difference]: With dead ends: 9912 [2021-12-21 16:07:20,965 INFO L226 Difference]: Without dead ends: 6698 [2021-12-21 16:07:20,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20