./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-16 03:52:34,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:52:34,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:52:34,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:52:34,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:52:34,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:52:34,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:52:34,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:52:34,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:52:34,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:52:34,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:52:34,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:52:34,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:52:34,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:52:34,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:52:34,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:52:34,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:52:34,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:52:34,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:52:34,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:52:34,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:52:34,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:52:34,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:52:34,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:52:34,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:52:34,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:52:34,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:52:34,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:52:34,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:52:34,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:52:34,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:52:34,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:52:34,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:52:34,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:52:34,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:52:34,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:52:34,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:52:34,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:52:34,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:52:34,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:52:34,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:52:34,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:52:34,892 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:52:34,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:52:34,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:52:34,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:52:34,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:52:34,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:52:34,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:52:34,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:52:34,895 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:52:34,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:52:34,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:52:34,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:52:34,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:52:34,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:52:34,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:52:34,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:52:34,897 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:52:34,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:52:34,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:52:34,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:52:34,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:52:34,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:52:34,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:52:34,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:52:34,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:52:34,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:52:34,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:52:34,899 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:52:34,899 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:52:34,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:52:34,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:52:34,899 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 [2021-12-16 03:52:35,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:52:35,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:52:35,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:52:35,118 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:52:35,119 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:52:35,120 INFO L432 ainManager$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 [2021-12-16 03:52:35,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f037a9f/38219d06067b4419bdfeab907cda6ea6/FLAG5990eac11 [2021-12-16 03:52:35,829 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:52:35,830 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 [2021-12-16 03:52:35,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f037a9f/38219d06067b4419bdfeab907cda6ea6/FLAG5990eac11 [2021-12-16 03:52:36,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f037a9f/38219d06067b4419bdfeab907cda6ea6 [2021-12-16 03:52:36,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:52:36,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:52:36,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:52:36,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:52:36,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:52:36,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:52:36" (1/1) ... [2021-12-16 03:52:36,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e45a08e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:36, skipping insertion in model container [2021-12-16 03:52:36,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:52:36" (1/1) ... [2021-12-16 03:52:36,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:52:36,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:52:38,481 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] [2021-12-16 03:52:38,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:52:38,643 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:52:38,996 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] [2021-12-16 03:52:39,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:52:39,123 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:52:39,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39 WrapperNode [2021-12-16 03:52:39,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:52:39,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:52:39,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:52:39,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:52:39,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (1/1) ... [2021-12-16 03:52:39,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (1/1) ... [2021-12-16 03:52:39,419 INFO L137 Inliner]: procedures = 395, calls = 4058, calls flagged for inlining = 199, calls inlined = 146, statements flattened = 7281 [2021-12-16 03:52:39,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:52:39,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:52:39,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:52:39,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:52:39,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (1/1) ... [2021-12-16 03:52:39,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (1/1) ... [2021-12-16 03:52:39,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (1/1) ... [2021-12-16 03:52:39,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (1/1) ... [2021-12-16 03:52:39,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (1/1) ... [2021-12-16 03:52:39,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (1/1) ... [2021-12-16 03:52:39,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (1/1) ... [2021-12-16 03:52:39,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:52:39,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:52:39,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:52:39,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:52:39,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (1/1) ... [2021-12-16 03:52:39,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:52:39,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:52:39,751 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) [2021-12-16 03:52:39,778 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 [2021-12-16 03:52:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_wait_until_sent [2021-12-16 03:52:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_wait_until_sent [2021-12-16 03:52:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-16 03:52:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-16 03:52:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-16 03:52:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_start [2021-12-16 03:52:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_start [2021-12-16 03:52:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_txidle [2021-12-16 03:52:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_txidle [2021-12-16 03:52:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2021-12-16 03:52:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2021-12-16 03:52:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:52:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:52:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopback_frame [2021-12-16 03:52:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopback_frame [2021-12-16 03:52:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-16 03:52:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-16 03:52:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_receiver [2021-12-16 03:52:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_receiver [2021-12-16 03:52:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_serial_signals [2021-12-16 03:52:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_serial_signals [2021-12-16 03:52:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_trace_block [2021-12-16 03:52:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_trace_block [2021-12-16 03:52:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-16 03:52:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-16 03:52:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 03:52:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 03:52:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mgsl_ops_disconnect_2 [2021-12-16 03:52:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mgsl_ops_disconnect_2 [2021-12-16 03:52:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2021-12-16 03:52:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2021-12-16 03:52:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 03:52:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 03:52:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-16 03:52:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2021-12-16 03:52:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2021-12-16 03:52:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure load_next_tx_holding_buffer [2021-12-16 03:52:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure load_next_tx_holding_buffer [2021-12-16 03:52:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 03:52:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 03:52:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-16 03:52:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-16 03:52:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:52:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-16 03:52:39,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-16 03:52:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-16 03:52:39,788 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-16 03:52:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-16 03:52:39,788 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-16 03:52:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-16 03:52:39,788 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-16 03:52:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 03:52:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 03:52:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2021-12-16 03:52:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2021-12-16 03:52:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutDmaReg [2021-12-16 03:52:39,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutDmaReg [2021-12-16 03:52:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 03:52:39,790 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 03:52:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_cancel_transmit [2021-12-16 03:52:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_cancel_transmit [2021-12-16 03:52:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure usc_load_txfifo [2021-12-16 03:52:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_load_txfifo [2021-12-16 03:52:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-16 03:52:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-16 03:52:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2021-12-16 03:52:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2021-12-16 03:52:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 03:52:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-16 03:52:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-16 03:52:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 03:52:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 03:52:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-16 03:52:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-16 03:52:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 03:52:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:52:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure usc_reset [2021-12-16 03:52:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_reset [2021-12-16 03:52:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_free_frame_memory [2021-12-16 03:52:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_free_frame_memory [2021-12-16 03:52:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InReg [2021-12-16 03:52:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InReg [2021-12-16 03:52:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-16 03:52:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-16 03:52:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure usc_enable_loopback [2021-12-16 03:52:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_enable_loopback [2021-12-16 03:52:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_load_tx_dma_buffer [2021-12-16 03:52:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_load_tx_dma_buffer [2021-12-16 03:52:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure usc_DmaCmd [2021-12-16 03:52:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_DmaCmd [2021-12-16 03:52:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_buffer [2021-12-16 03:52:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_buffer [2021-12-16 03:52:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-16 03:52:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-16 03:52:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-16 03:52:39,796 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-16 03:52:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure usc_RTCmd [2021-12-16 03:52:39,796 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_RTCmd [2021-12-16 03:52:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:52:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_sdlc_mode [2021-12-16 03:52:39,797 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_sdlc_mode [2021-12-16 03:52:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_receiver [2021-12-16 03:52:39,797 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_receiver [2021-12-16 03:52:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:52:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:52:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 03:52:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-16 03:52:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-16 03:52:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_add_device [2021-12-16 03:52:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_add_device [2021-12-16 03:52:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_unthrottle [2021-12-16 03:52:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_unthrottle [2021-12-16 03:52:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_throttle [2021-12-16 03:52:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_throttle [2021-12-16 03:52:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutReg [2021-12-16 03:52:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutReg [2021-12-16 03:52:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 03:52:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 03:52:39,800 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2021-12-16 03:52:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2021-12-16 03:52:39,801 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_set_termios [2021-12-16 03:52:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_set_termios [2021-12-16 03:52:39,802 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-16 03:52:39,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-16 03:52:39,803 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 03:52:39,803 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 03:52:39,803 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_transmitter [2021-12-16 03:52:39,803 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_transmitter [2021-12-16 03:52:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:52:39,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:52:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-16 03:52:39,808 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-16 03:52:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 03:52:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 03:52:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_chars [2021-12-16 03:52:39,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_chars [2021-12-16 03:52:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-16 03:52:39,808 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-16 03:52:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-16 03:52:39,809 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-16 03:52:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_send_xchar [2021-12-16 03:52:39,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_send_xchar [2021-12-16 03:52:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_change_params [2021-12-16 03:52:39,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_change_params [2021-12-16 03:52:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 03:52:39,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 03:52:39,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 03:52:39,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 03:52:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure usc_get_serial_signals [2021-12-16 03:52:39,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_get_serial_signals [2021-12-16 03:52:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_reset_rx_dma_buffers [2021-12-16 03:52:39,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_reset_rx_dma_buffers [2021-12-16 03:52:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 03:52:39,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 03:52:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-16 03:52:39,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-16 03:52:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_transmitter [2021-12-16 03:52:39,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_transmitter [2021-12-16 03:52:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-16 03:52:39,811 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-16 03:52:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-16 03:52:39,811 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-16 03:52:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-16 03:52:39,811 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-16 03:52:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_paranoia_check [2021-12-16 03:52:39,811 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_paranoia_check [2021-12-16 03:52:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InDmaReg [2021-12-16 03:52:39,811 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InDmaReg [2021-12-16 03:52:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:52:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:52:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_active [2021-12-16 03:52:39,812 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_active [2021-12-16 03:52:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_stop [2021-12-16 03:52:39,812 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_stop [2021-12-16 03:52:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-16 03:52:39,812 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-16 03:52:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:52:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_remove_one [2021-12-16 03:52:39,812 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_remove_one [2021-12-16 03:52:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-16 03:52:39,813 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-16 03:52:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_cleanup [2021-12-16 03:52:39,813 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_cleanup [2021-12-16 03:52:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-16 03:52:39,813 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-16 03:52:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-16 03:52:39,813 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-16 03:52:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-16 03:52:39,813 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-16 03:52:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-16 03:52:39,814 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-16 03:52:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-16 03:52:39,814 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-16 03:52:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_write_room [2021-12-16 03:52:39,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_write_room [2021-12-16 03:52:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_break [2021-12-16 03:52:39,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_break [2021-12-16 03:52:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_allocate_device [2021-12-16 03:52:39,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_allocate_device [2021-12-16 03:52:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-16 03:52:39,815 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-16 03:52:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_install [2021-12-16 03:52:39,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_install [2021-12-16 03:52:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2021-12-16 03:52:39,815 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2021-12-16 03:52:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_release_resources [2021-12-16 03:52:39,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_release_resources [2021-12-16 03:52:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-16 03:52:39,815 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-16 03:52:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-16 03:52:39,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-16 03:52:39,816 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 03:52:39,816 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 03:52:39,816 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_send_done [2021-12-16 03:52:39,816 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_send_done [2021-12-16 03:52:39,816 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 03:52:39,816 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 03:52:39,816 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-16 03:52:39,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-16 03:52:39,816 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 03:52:39,817 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 03:52:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_ioctl [2021-12-16 03:52:39,817 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_ioctl [2021-12-16 03:52:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-16 03:52:39,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-16 03:52:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:52:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:52:39,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:52:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure msgl_get_icount [2021-12-16 03:52:39,817 INFO L138 BoogieDeclarations]: Found implementation of procedure msgl_get_icount [2021-12-16 03:52:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_chars_in_buffer [2021-12-16 03:52:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_chars_in_buffer [2021-12-16 03:52:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-16 03:52:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-16 03:52:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-16 03:52:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-16 03:52:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-16 03:52:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-16 03:52:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_put_char [2021-12-16 03:52:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_put_char [2021-12-16 03:52:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_program_hw [2021-12-16 03:52:39,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_program_hw [2021-12-16 03:52:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2021-12-16 03:52:39,819 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2021-12-16 03:52:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_hangup [2021-12-16 03:52:39,820 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_hangup [2021-12-16 03:52:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-16 03:52:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-16 03:52:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-12-16 03:52:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-12-16 03:52:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-16 03:52:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-16 03:52:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:52:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_alloc_frame_memory [2021-12-16 03:52:39,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_alloc_frame_memory [2021-12-16 03:52:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-16 03:52:39,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-16 03:52:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-16 03:52:39,823 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-16 03:52:40,577 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:52:40,584 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:53:00,529 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:53:00,550 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:53:00,550 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:53:00,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:53:00 BoogieIcfgContainer [2021-12-16 03:53:00,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:53:00,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:53:00,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:53:00,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:53:00,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:52:36" (1/3) ... [2021-12-16 03:53:00,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4eb70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:53:00, skipping insertion in model container [2021-12-16 03:53:00,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:39" (2/3) ... [2021-12-16 03:53:00,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4eb70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:53:00, skipping insertion in model container [2021-12-16 03:53:00,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:53:00" (3/3) ... [2021-12-16 03:53:00,559 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2021-12-16 03:53:00,562 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:53:00,562 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:53:00,601 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:53:00,606 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 [2021-12-16 03:53:00,606 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:53:00,655 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) [2021-12-16 03:53:00,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-16 03:53:00,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:53:00,663 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] [2021-12-16 03:53:00,664 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:53:00,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:53:00,667 INFO L85 PathProgramCache]: Analyzing trace with hash -932140242, now seen corresponding path program 1 times [2021-12-16 03:53:00,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:53:00,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128540957] [2021-12-16 03:53:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:53:00,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:53:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:01,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 03:53:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:53:01,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:53:01,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128540957] [2021-12-16 03:53:01,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128540957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:53:01,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:53:01,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:53:01,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677639788] [2021-12-16 03:53:01,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:53:01,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:53:01,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:53:01,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:53:01,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:53:01,190 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) [2021-12-16 03:53:05,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:07,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:11,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:13,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:16,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:19,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:21,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:24,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:26,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:28,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:30,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:32,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:34,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:36,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:53:40,357 INFO L93 Difference]: Finished difference Result 9912 states and 15267 transitions. [2021-12-16 03:53:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:53:40,360 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 [2021-12-16 03:53:40,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:53:40,481 INFO L225 Difference]: With dead ends: 9912 [2021-12-16 03:53:40,481 INFO L226 Difference]: Without dead ends: 6698 [2021-12-16 03:53:40,504 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 [2021-12-16 03:53:40,520 INFO L933 BasicCegarLoop]: 5253 mSDtfsCounter, 5776 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 4663 mSolverCounterSat, 2482 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 9922 SdHoareTripleChecker+Invalid, 7156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2482 IncrementalHoareTripleChecker+Valid, 4663 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2021-12-16 03:53:40,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6580 Valid, 9922 Invalid, 7156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2482 Valid, 4663 Invalid, 11 Unknown, 0 Unchecked, 38.4s Time] [2021-12-16 03:53:40,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6698 states. [2021-12-16 03:53:40,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6698 to 6348. [2021-12-16 03:53:40,842 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) [2021-12-16 03:53:40,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 9652 transitions. [2021-12-16 03:53:40,887 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 9652 transitions. Word has length 23 [2021-12-16 03:53:40,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:53:40,887 INFO L470 AbstractCegarLoop]: Abstraction has 6348 states and 9652 transitions. [2021-12-16 03:53:40,887 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) [2021-12-16 03:53:40,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 9652 transitions. [2021-12-16 03:53:40,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-16 03:53:40,898 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:53:40,898 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] [2021-12-16 03:53:40,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:53:40,899 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:53:40,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:53:40,901 INFO L85 PathProgramCache]: Analyzing trace with hash 832541815, now seen corresponding path program 1 times [2021-12-16 03:53:40,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:53:40,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490517783] [2021-12-16 03:53:40,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:53:40,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:53:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:41,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 03:53:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:41,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:53:41,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:53:41,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490517783] [2021-12-16 03:53:41,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490517783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:53:41,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:53:41,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:53:41,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70622748] [2021-12-16 03:53:41,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:53:41,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:53:41,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:53:41,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:53:41,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:53:41,126 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) [2021-12-16 03:53:41,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:53:41,691 INFO L93 Difference]: Finished difference Result 16115 states and 24400 transitions. [2021-12-16 03:53:41,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:53:41,691 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 [2021-12-16 03:53:41,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:53:41,752 INFO L225 Difference]: With dead ends: 16115 [2021-12-16 03:53:41,752 INFO L226 Difference]: Without dead ends: 9770 [2021-12-16 03:53:41,788 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 [2021-12-16 03:53:41,789 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 [2021-12-16 03:53:41,789 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] [2021-12-16 03:53:41,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9770 states.