./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 e19ca921 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-e19ca92 [2021-12-22 14:32:35,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:32:35,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:32:35,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:32:35,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:32:35,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:32:35,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:32:35,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:32:35,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:32:35,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:32:35,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:32:35,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:32:35,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:32:35,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:32:35,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:32:35,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:32:35,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:32:35,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:32:35,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:32:35,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:32:35,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:32:35,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:32:35,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:32:35,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:32:35,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:32:35,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:32:35,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:32:35,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:32:35,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:32:35,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:32:35,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:32:35,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:32:35,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:32:35,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:32:35,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:32:35,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:32:35,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:32:35,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:32:35,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:32:35,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:32:35,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:32:35,665 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:32:35,683 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:32:35,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:32:35,684 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:32:35,684 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:32:35,685 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:32:35,685 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:32:35,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:32:35,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:32:35,686 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:32:35,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:32:35,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:32:35,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:32:35,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:32:35,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:32:35,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:32:35,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:32:35,688 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:32:35,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:32:35,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:32:35,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:32:35,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:32:35,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:32:35,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:32:35,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:32:35,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:32:35,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:32:35,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:32:35,689 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:32:35,691 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:32:35,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:32:35,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:32:35,692 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 [2021-12-22 14:32:35,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:32:35,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:32:35,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:32:35,958 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:32:35,959 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:32:35,960 INFO L432 ainManager$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 [2021-12-22 14:32:36,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/783c4936e/15277fa581e04b5a8e16ebea7a6f8235/FLAG3e2240944 [2021-12-22 14:32:36,631 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:32:36,632 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 [2021-12-22 14:32:36,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/783c4936e/15277fa581e04b5a8e16ebea7a6f8235/FLAG3e2240944 [2021-12-22 14:32:36,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/783c4936e/15277fa581e04b5a8e16ebea7a6f8235 [2021-12-22 14:32:36,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:32:36,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:32:36,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:32:36,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:32:36,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:32:36,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:32:36" (1/1) ... [2021-12-22 14:32:36,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0cb400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:36, skipping insertion in model container [2021-12-22 14:32:36,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:32:36" (1/1) ... [2021-12-22 14:32:37,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:32:37,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:32:39,189 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] [2021-12-22 14:32:39,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:32:39,310 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:32:39,651 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] [2021-12-22 14:32:39,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:32:39,783 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:32:39,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39 WrapperNode [2021-12-22 14:32:39,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:32:39,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:32:39,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:32:39,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:32:39,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:39,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:40,120 INFO L137 Inliner]: procedures = 395, calls = 4058, calls flagged for inlining = 199, calls inlined = 146, statements flattened = 7281 [2021-12-22 14:32:40,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:32:40,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:32:40,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:32:40,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:32:40,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:40,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:40,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:40,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:40,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:40,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:40,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:40,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:32:40,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:32:40,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:32:40,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:32:40,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:40,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:32:40,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:32:40,481 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) [2021-12-22 14:32:40,499 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 [2021-12-22 14:32:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_wait_until_sent [2021-12-22 14:32:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_wait_until_sent [2021-12-22 14:32:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-22 14:32:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 14:32:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 14:32:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_start [2021-12-22 14:32:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_start [2021-12-22 14:32:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_txidle [2021-12-22 14:32:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_txidle [2021-12-22 14:32:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2021-12-22 14:32:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2021-12-22 14:32:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:32:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:32:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopback_frame [2021-12-22 14:32:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopback_frame [2021-12-22 14:32:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-22 14:32:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-22 14:32:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_receiver [2021-12-22 14:32:40,515 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_receiver [2021-12-22 14:32:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_serial_signals [2021-12-22 14:32:40,515 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_serial_signals [2021-12-22 14:32:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_trace_block [2021-12-22 14:32:40,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_trace_block [2021-12-22 14:32:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-22 14:32:40,515 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-22 14:32:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 14:32:40,515 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 14:32:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mgsl_ops_disconnect_2 [2021-12-22 14:32:40,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mgsl_ops_disconnect_2 [2021-12-22 14:32:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2021-12-22 14:32:40,516 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2021-12-22 14:32:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:32:40,516 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:32:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-22 14:32:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2021-12-22 14:32:40,516 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2021-12-22 14:32:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure load_next_tx_holding_buffer [2021-12-22 14:32:40,517 INFO L138 BoogieDeclarations]: Found implementation of procedure load_next_tx_holding_buffer [2021-12-22 14:32:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:32:40,517 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:32:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-22 14:32:40,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-22 14:32:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:32:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-22 14:32:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-22 14:32:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-22 14:32:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-22 14:32:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-22 14:32:40,518 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-22 14:32:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-22 14:32:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-22 14:32:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:32:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:32:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2021-12-22 14:32:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2021-12-22 14:32:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutDmaReg [2021-12-22 14:32:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutDmaReg [2021-12-22 14:32:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 14:32:40,521 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 14:32:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_cancel_transmit [2021-12-22 14:32:40,521 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_cancel_transmit [2021-12-22 14:32:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure usc_load_txfifo [2021-12-22 14:32:40,521 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_load_txfifo [2021-12-22 14:32:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-22 14:32:40,522 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-22 14:32:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2021-12-22 14:32:40,522 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2021-12-22 14:32:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:32:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 14:32:40,522 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 14:32:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 14:32:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 14:32:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:32:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:32:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:32:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:32:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure usc_reset [2021-12-22 14:32:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_reset [2021-12-22 14:32:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_free_frame_memory [2021-12-22 14:32:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_free_frame_memory [2021-12-22 14:32:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InReg [2021-12-22 14:32:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InReg [2021-12-22 14:32:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-22 14:32:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-22 14:32:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure usc_enable_loopback [2021-12-22 14:32:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_enable_loopback [2021-12-22 14:32:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_load_tx_dma_buffer [2021-12-22 14:32:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_load_tx_dma_buffer [2021-12-22 14:32:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure usc_DmaCmd [2021-12-22 14:32:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_DmaCmd [2021-12-22 14:32:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_buffer [2021-12-22 14:32:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_buffer [2021-12-22 14:32:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-22 14:32:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-22 14:32:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-22 14:32:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-22 14:32:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure usc_RTCmd [2021-12-22 14:32:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_RTCmd [2021-12-22 14:32:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:32:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_sdlc_mode [2021-12-22 14:32:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_sdlc_mode [2021-12-22 14:32:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_receiver [2021-12-22 14:32:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_receiver [2021-12-22 14:32:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:32:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:32:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:32:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 14:32:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 14:32:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_add_device [2021-12-22 14:32:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_add_device [2021-12-22 14:32:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_unthrottle [2021-12-22 14:32:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_unthrottle [2021-12-22 14:32:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_throttle [2021-12-22 14:32:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_throttle [2021-12-22 14:32:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutReg [2021-12-22 14:32:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutReg [2021-12-22 14:32:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 14:32:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 14:32:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2021-12-22 14:32:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2021-12-22 14:32:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_set_termios [2021-12-22 14:32:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_set_termios [2021-12-22 14:32:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-22 14:32:40,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-22 14:32:40,534 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:32:40,534 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:32:40,534 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_transmitter [2021-12-22 14:32:40,534 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_transmitter [2021-12-22 14:32:40,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:32:40,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:32:40,538 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-22 14:32:40,538 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-22 14:32:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:32:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:32:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_chars [2021-12-22 14:32:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_chars [2021-12-22 14:32:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:32:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:32:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-22 14:32:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-22 14:32:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_send_xchar [2021-12-22 14:32:40,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_send_xchar [2021-12-22 14:32:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_change_params [2021-12-22 14:32:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_change_params [2021-12-22 14:32:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:32:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:32:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:32:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:32:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure usc_get_serial_signals [2021-12-22 14:32:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_get_serial_signals [2021-12-22 14:32:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_reset_rx_dma_buffers [2021-12-22 14:32:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_reset_rx_dma_buffers [2021-12-22 14:32:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:32:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:32:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 14:32:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 14:32:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_transmitter [2021-12-22 14:32:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_transmitter [2021-12-22 14:32:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-22 14:32:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-22 14:32:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-22 14:32:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-22 14:32:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 14:32:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 14:32:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_paranoia_check [2021-12-22 14:32:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_paranoia_check [2021-12-22 14:32:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InDmaReg [2021-12-22 14:32:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InDmaReg [2021-12-22 14:32:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:32:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:32:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_active [2021-12-22 14:32:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_active [2021-12-22 14:32:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_stop [2021-12-22 14:32:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_stop [2021-12-22 14:32:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-22 14:32:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-22 14:32:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:32:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_remove_one [2021-12-22 14:32:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_remove_one [2021-12-22 14:32:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-22 14:32:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-22 14:32:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_cleanup [2021-12-22 14:32:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_cleanup [2021-12-22 14:32:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-22 14:32:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-22 14:32:40,544 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:32:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:32:40,544 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-22 14:32:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-22 14:32:40,544 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-22 14:32:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-22 14:32:40,544 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-22 14:32:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-22 14:32:40,544 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_write_room [2021-12-22 14:32:40,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_write_room [2021-12-22 14:32:40,545 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_break [2021-12-22 14:32:40,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_break [2021-12-22 14:32:40,545 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_allocate_device [2021-12-22 14:32:40,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_allocate_device [2021-12-22 14:32:40,545 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-22 14:32:40,545 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-22 14:32:40,545 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_install [2021-12-22 14:32:40,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_install [2021-12-22 14:32:40,545 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2021-12-22 14:32:40,546 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2021-12-22 14:32:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_release_resources [2021-12-22 14:32:40,546 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_release_resources [2021-12-22 14:32:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-22 14:32:40,546 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-22 14:32:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-22 14:32:40,546 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-22 14:32:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 14:32:40,546 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 14:32:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_send_done [2021-12-22 14:32:40,547 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_send_done [2021-12-22 14:32:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:32:40,547 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:32:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 14:32:40,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 14:32:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:32:40,547 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:32:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_ioctl [2021-12-22 14:32:40,547 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_ioctl [2021-12-22 14:32:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-22 14:32:40,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-22 14:32:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:32:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:32:40,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:32:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure msgl_get_icount [2021-12-22 14:32:40,548 INFO L138 BoogieDeclarations]: Found implementation of procedure msgl_get_icount [2021-12-22 14:32:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_chars_in_buffer [2021-12-22 14:32:40,548 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_chars_in_buffer [2021-12-22 14:32:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 14:32:40,548 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 14:32:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-22 14:32:40,549 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-22 14:32:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 14:32:40,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 14:32:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_put_char [2021-12-22 14:32:40,549 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_put_char [2021-12-22 14:32:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_program_hw [2021-12-22 14:32:40,549 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_program_hw [2021-12-22 14:32:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2021-12-22 14:32:40,549 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2021-12-22 14:32:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_hangup [2021-12-22 14:32:40,550 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_hangup [2021-12-22 14:32:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-22 14:32:40,553 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-22 14:32:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-12-22 14:32:40,553 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-12-22 14:32:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-22 14:32:40,554 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-22 14:32:40,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:32:40,554 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_alloc_frame_memory [2021-12-22 14:32:40,554 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_alloc_frame_memory [2021-12-22 14:32:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-22 14:32:40,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-22 14:32:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-22 14:32:40,555 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-22 14:32:41,386 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:32:41,388 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:33:03,220 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:33:03,245 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:33:03,245 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:33:03,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:33:03 BoogieIcfgContainer [2021-12-22 14:33:03,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:33:03,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:33:03,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:33:03,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:33:03,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:32:36" (1/3) ... [2021-12-22 14:33:03,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adb0966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:33:03, skipping insertion in model container [2021-12-22 14:33:03,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39" (2/3) ... [2021-12-22 14:33:03,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adb0966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:33:03, skipping insertion in model container [2021-12-22 14:33:03,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:33:03" (3/3) ... [2021-12-22 14:33:03,256 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2021-12-22 14:33:03,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:33:03,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:33:03,314 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:33:03,321 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 [2021-12-22 14:33:03,321 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:33:03,381 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) [2021-12-22 14:33:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-22 14:33:03,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:03,401 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] [2021-12-22 14:33:03,402 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:03,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:03,406 INFO L85 PathProgramCache]: Analyzing trace with hash -932140242, now seen corresponding path program 1 times [2021-12-22 14:33:03,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:03,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594210012] [2021-12-22 14:33:03,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:03,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:03,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 14:33:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:03,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:03,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594210012] [2021-12-22 14:33:03,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594210012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:03,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:03,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:33:03,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795180101] [2021-12-22 14:33:03,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:03,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:33:03,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:33:03,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:33:03,961 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) [2021-12-22 14:33:07,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:09,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:12,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:15,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:18,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:21,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:23,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:25,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:27,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:30,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:32,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:34,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:36,453 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 [] [2021-12-22 14:33:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:39,757 INFO L93 Difference]: Finished difference Result 9912 states and 15267 transitions. [2021-12-22 14:33:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:33:39,760 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 [2021-12-22 14:33:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:39,824 INFO L225 Difference]: With dead ends: 9912 [2021-12-22 14:33:39,824 INFO L226 Difference]: Without dead ends: 6698 [2021-12-22 14:33:39,854 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 [2021-12-22 14:33:39,859 INFO L933 BasicCegarLoop]: 5252 mSDtfsCounter, 5776 mSDsluCounter, 4667 mSDsCounter, 0 mSdLazyCounter, 4664 mSolverCounterSat, 2482 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 9919 SdHoareTripleChecker+Invalid, 7154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2482 IncrementalHoareTripleChecker+Valid, 4664 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:39,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6580 Valid, 9919 Invalid, 7154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2482 Valid, 4664 Invalid, 8 Unknown, 0 Unchecked, 35.0s Time] [2021-12-22 14:33:39,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6698 states. [2021-12-22 14:33:40,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6698 to 6348. [2021-12-22 14:33:40,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6348 states, 4342 states have (on average 1.410409949332105) internal successors, (6124), 4486 states have internal predecessors, (6124), 1767 states have call successors, (1767), 239 states have call predecessors, (1767), 238 states have return successors, (1761), 1721 states have call predecessors, (1761), 1761 states have call successors, (1761) [2021-12-22 14:33:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 9652 transitions. [2021-12-22 14:33:40,352 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 9652 transitions. Word has length 23 [2021-12-22 14:33:40,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:40,353 INFO L470 AbstractCegarLoop]: Abstraction has 6348 states and 9652 transitions. [2021-12-22 14:33:40,353 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2021-12-22 14:33:40,353 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 9652 transitions. [2021-12-22 14:33:40,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-22 14:33:40,362 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:40,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:40,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:33:40,363 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:40,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:40,365 INFO L85 PathProgramCache]: Analyzing trace with hash 832541815, now seen corresponding path program 1 times [2021-12-22 14:33:40,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:40,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290912053] [2021-12-22 14:33:40,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:40,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:40,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 14:33:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:40,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:40,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290912053] [2021-12-22 14:33:40,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290912053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:40,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:40,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:33:40,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051526035] [2021-12-22 14:33:40,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:40,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:33:40,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:40,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:33:40,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:40,529 INFO L87 Difference]: Start difference. First operand 6348 states and 9652 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 14:33:41,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:41,067 INFO L93 Difference]: Finished difference Result 16115 states and 24400 transitions. [2021-12-22 14:33:41,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:33:41,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-12-22 14:33:41,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:41,123 INFO L225 Difference]: With dead ends: 16115 [2021-12-22 14:33:41,124 INFO L226 Difference]: Without dead ends: 9770 [2021-12-22 14:33:41,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:41,166 INFO L933 BasicCegarLoop]: 6281 mSDtfsCounter, 2584 mSDsluCounter, 4578 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 10859 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:41,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2584 Valid, 10859 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 14:33:41,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9770 states. [2021-12-22 14:33:41,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9770 to 9758. [2021-12-22 14:33:41,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9758 states, 6615 states have (on average 1.3963718820861677) internal successors, (9237), 6823 states have internal predecessors, (9237), 2752 states have call successors, (2752), 391 states have call predecessors, (2752), 390 states have return successors, (2746), 2677 states have call predecessors, (2746), 2746 states have call successors, (2746) [2021-12-22 14:33:41,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9758 states to 9758 states and 14735 transitions. [2021-12-22 14:33:41,666 INFO L78 Accepts]: Start accepts. Automaton has 9758 states and 14735 transitions. Word has length 42 [2021-12-22 14:33:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:41,666 INFO L470 AbstractCegarLoop]: Abstraction has 9758 states and 14735 transitions. [2021-12-22 14:33:41,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 14:33:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9758 states and 14735 transitions. [2021-12-22 14:33:41,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-22 14:33:41,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:41,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:41,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:33:41,670 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:41,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:41,690 INFO L85 PathProgramCache]: Analyzing trace with hash 93309406, now seen corresponding path program 1 times [2021-12-22 14:33:41,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:41,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477751253] [2021-12-22 14:33:41,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:41,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:41,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-22 14:33:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:41,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 14:33:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:41,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:41,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:41,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477751253] [2021-12-22 14:33:41,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477751253] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:41,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:41,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:33:41,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745822885] [2021-12-22 14:33:41,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:41,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:33:41,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:41,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:33:41,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:33:41,840 INFO L87 Difference]: Start difference. First operand 9758 states and 14735 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)