./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 ae007674 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-ae00767 [2021-12-28 03:50:44,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:50:44,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:50:44,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:50:44,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:50:44,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:50:44,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:50:44,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:50:44,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:50:44,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:50:44,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:50:44,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:50:44,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:50:44,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:50:44,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:50:44,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:50:44,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:50:44,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:50:44,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:50:44,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:50:44,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:50:44,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:50:44,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:50:44,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:50:44,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:50:44,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:50:44,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:50:44,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:50:44,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:50:44,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:50:44,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:50:44,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:50:44,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:50:44,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:50:44,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:50:44,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:50:44,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:50:44,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:50:44,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:50:44,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:50:44,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:50:44,788 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:50:44,812 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:50:44,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:50:44,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:50:44,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:50:44,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:50:44,815 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:50:44,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:50:44,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:50:44,816 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:50:44,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:50:44,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:50:44,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:50:44,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:50:44,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:50:44,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:50:44,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:50:44,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:50:44,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:50:44,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:50:44,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:50:44,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:50:44,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:50:44,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:50:44,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:50:44,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:50:44,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:50:44,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:50:44,819 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:50:44,819 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:50:44,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:50:44,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 [2021-12-28 03:50:45,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:50:45,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:50:45,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:50:45,100 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:50:45,101 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:50:45,102 INFO L432 ainManager$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 [2021-12-28 03:50:45,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ba84a5a/869817c14599459484ed396e9f35b136/FLAG119ad96e6 [2021-12-28 03:50:45,957 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:50:45,957 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 [2021-12-28 03:50:46,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ba84a5a/869817c14599459484ed396e9f35b136/FLAG119ad96e6 [2021-12-28 03:50:46,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ba84a5a/869817c14599459484ed396e9f35b136 [2021-12-28 03:50:46,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:50:46,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:50:46,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:50:46,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:50:46,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:50:46,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:50:46" (1/1) ... [2021-12-28 03:50:46,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7f2b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:46, skipping insertion in model container [2021-12-28 03:50:46,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:50:46" (1/1) ... [2021-12-28 03:50:46,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:50:46,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:50:48,546 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] [2021-12-28 03:50:48,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:50:48,695 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:50:49,058 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] [2021-12-28 03:50:49,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:50:49,205 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:50:49,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49 WrapperNode [2021-12-28 03:50:49,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:50:49,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:50:49,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:50:49,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:50:49,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,547 INFO L137 Inliner]: procedures = 395, calls = 4058, calls flagged for inlining = 199, calls inlined = 146, statements flattened = 7281 [2021-12-28 03:50:49,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:50:49,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:50:49,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:50:49,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:50:49,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:50:49,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:50:49,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:50:49,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:50:49,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:50:49,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:50:49,922 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) [2021-12-28 03:50:49,938 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 [2021-12-28 03:50:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_wait_until_sent [2021-12-28 03:50:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_wait_until_sent [2021-12-28 03:50:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-28 03:50:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 03:50:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 03:50:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_start [2021-12-28 03:50:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_start [2021-12-28 03:50:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_txidle [2021-12-28 03:50:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_txidle [2021-12-28 03:50:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2021-12-28 03:50:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2021-12-28 03:50:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:50:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:50:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopback_frame [2021-12-28 03:50:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopback_frame [2021-12-28 03:50:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-28 03:50:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-28 03:50:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_receiver [2021-12-28 03:50:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_receiver [2021-12-28 03:50:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_serial_signals [2021-12-28 03:50:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_serial_signals [2021-12-28 03:50:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_trace_block [2021-12-28 03:50:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_trace_block [2021-12-28 03:50:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-28 03:50:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-28 03:50:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 03:50:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 03:50:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mgsl_ops_disconnect_2 [2021-12-28 03:50:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mgsl_ops_disconnect_2 [2021-12-28 03:50:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2021-12-28 03:50:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2021-12-28 03:50:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:50:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:50:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-28 03:50:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2021-12-28 03:50:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2021-12-28 03:50:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure load_next_tx_holding_buffer [2021-12-28 03:50:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure load_next_tx_holding_buffer [2021-12-28 03:50:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:50:49,957 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:50:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-28 03:50:49,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-28 03:50:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:50:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-28 03:50:49,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-28 03:50:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-28 03:50:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-28 03:50:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-28 03:50:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-28 03:50:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-28 03:50:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-28 03:50:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 03:50:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 03:50:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2021-12-28 03:50:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2021-12-28 03:50:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutDmaReg [2021-12-28 03:50:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutDmaReg [2021-12-28 03:50:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 03:50:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 03:50:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_cancel_transmit [2021-12-28 03:50:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_cancel_transmit [2021-12-28 03:50:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure usc_load_txfifo [2021-12-28 03:50:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_load_txfifo [2021-12-28 03:50:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-28 03:50:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-28 03:50:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2021-12-28 03:50:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2021-12-28 03:50:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:50:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 03:50:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 03:50:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 03:50:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 03:50:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 03:50:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 03:50:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:50:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:50:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure usc_reset [2021-12-28 03:50:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_reset [2021-12-28 03:50:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_free_frame_memory [2021-12-28 03:50:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_free_frame_memory [2021-12-28 03:50:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InReg [2021-12-28 03:50:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InReg [2021-12-28 03:50:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-28 03:50:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-28 03:50:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure usc_enable_loopback [2021-12-28 03:50:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_enable_loopback [2021-12-28 03:50:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_load_tx_dma_buffer [2021-12-28 03:50:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_load_tx_dma_buffer [2021-12-28 03:50:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure usc_DmaCmd [2021-12-28 03:50:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_DmaCmd [2021-12-28 03:50:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_buffer [2021-12-28 03:50:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_buffer [2021-12-28 03:50:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-28 03:50:49,965 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-28 03:50:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-28 03:50:49,965 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-28 03:50:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure usc_RTCmd [2021-12-28 03:50:49,966 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_RTCmd [2021-12-28 03:50:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:50:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_sdlc_mode [2021-12-28 03:50:49,966 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_sdlc_mode [2021-12-28 03:50:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_receiver [2021-12-28 03:50:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_receiver [2021-12-28 03:50:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:50:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:50:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 03:50:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 03:50:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 03:50:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_add_device [2021-12-28 03:50:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_add_device [2021-12-28 03:50:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_unthrottle [2021-12-28 03:50:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_unthrottle [2021-12-28 03:50:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_throttle [2021-12-28 03:50:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_throttle [2021-12-28 03:50:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutReg [2021-12-28 03:50:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutReg [2021-12-28 03:50:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 03:50:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 03:50:49,969 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2021-12-28 03:50:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2021-12-28 03:50:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_set_termios [2021-12-28 03:50:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_set_termios [2021-12-28 03:50:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-28 03:50:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-28 03:50:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 03:50:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 03:50:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_transmitter [2021-12-28 03:50:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_transmitter [2021-12-28 03:50:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:50:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:50:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-28 03:50:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-28 03:50:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:50:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:50:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_chars [2021-12-28 03:50:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_chars [2021-12-28 03:50:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 03:50:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 03:50:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-28 03:50:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-28 03:50:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_send_xchar [2021-12-28 03:50:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_send_xchar [2021-12-28 03:50:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_change_params [2021-12-28 03:50:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_change_params [2021-12-28 03:50:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:50:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:50:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:50:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:50:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure usc_get_serial_signals [2021-12-28 03:50:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_get_serial_signals [2021-12-28 03:50:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_reset_rx_dma_buffers [2021-12-28 03:50:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_reset_rx_dma_buffers [2021-12-28 03:50:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 03:50:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 03:50:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 03:50:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 03:50:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_transmitter [2021-12-28 03:50:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_transmitter [2021-12-28 03:50:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-28 03:50:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-28 03:50:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-28 03:50:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-28 03:50:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 03:50:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 03:50:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_paranoia_check [2021-12-28 03:50:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_paranoia_check [2021-12-28 03:50:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InDmaReg [2021-12-28 03:50:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InDmaReg [2021-12-28 03:50:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:50:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:50:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_active [2021-12-28 03:50:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_active [2021-12-28 03:50:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_stop [2021-12-28 03:50:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_stop [2021-12-28 03:50:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-28 03:50:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-28 03:50:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:50:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_remove_one [2021-12-28 03:50:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_remove_one [2021-12-28 03:50:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 03:50:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 03:50:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_cleanup [2021-12-28 03:50:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_cleanup [2021-12-28 03:50:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-28 03:50:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-28 03:50:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:50:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:50:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-28 03:50:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-28 03:50:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-28 03:50:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-28 03:50:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-28 03:50:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-28 03:50:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_write_room [2021-12-28 03:50:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_write_room [2021-12-28 03:50:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_break [2021-12-28 03:50:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_break [2021-12-28 03:50:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_allocate_device [2021-12-28 03:50:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_allocate_device [2021-12-28 03:50:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-28 03:50:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-28 03:50:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_install [2021-12-28 03:50:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_install [2021-12-28 03:50:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2021-12-28 03:50:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2021-12-28 03:50:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_release_resources [2021-12-28 03:50:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_release_resources [2021-12-28 03:50:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-28 03:50:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-28 03:50:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 03:50:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 03:50:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 03:50:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 03:50:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_send_done [2021-12-28 03:50:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_send_done [2021-12-28 03:50:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 03:50:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 03:50:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-28 03:50:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-28 03:50:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:50:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:50:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_ioctl [2021-12-28 03:50:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_ioctl [2021-12-28 03:50:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-28 03:50:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-28 03:50:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:50:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:50:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:50:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure msgl_get_icount [2021-12-28 03:50:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure msgl_get_icount [2021-12-28 03:50:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_chars_in_buffer [2021-12-28 03:50:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_chars_in_buffer [2021-12-28 03:50:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-28 03:50:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-28 03:50:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-28 03:50:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-28 03:50:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 03:50:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 03:50:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_put_char [2021-12-28 03:50:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_put_char [2021-12-28 03:50:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_program_hw [2021-12-28 03:50:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_program_hw [2021-12-28 03:50:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2021-12-28 03:50:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2021-12-28 03:50:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_hangup [2021-12-28 03:50:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_hangup [2021-12-28 03:50:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-28 03:50:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-28 03:50:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-12-28 03:50:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-12-28 03:50:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-28 03:50:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-28 03:50:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:50:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_alloc_frame_memory [2021-12-28 03:50:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_alloc_frame_memory [2021-12-28 03:50:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-28 03:50:49,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-28 03:50:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-28 03:50:49,993 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-28 03:50:50,734 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:50:50,738 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:51:10,492 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:51:10,531 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:51:10,532 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 03:51:10,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:51:10 BoogieIcfgContainer [2021-12-28 03:51:10,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:51:10,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:51:10,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:51:10,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:51:10,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:50:46" (1/3) ... [2021-12-28 03:51:10,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0d1261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:51:10, skipping insertion in model container [2021-12-28 03:51:10,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (2/3) ... [2021-12-28 03:51:10,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0d1261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:51:10, skipping insertion in model container [2021-12-28 03:51:10,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:51:10" (3/3) ... [2021-12-28 03:51:10,541 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2021-12-28 03:51:10,544 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:51:10,545 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:51:10,592 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:51:10,598 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 [2021-12-28 03:51:10,599 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:51:10,659 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) [2021-12-28 03:51:10,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-28 03:51:10,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:10,674 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] [2021-12-28 03:51:10,674 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:10,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:10,678 INFO L85 PathProgramCache]: Analyzing trace with hash -932140242, now seen corresponding path program 1 times [2021-12-28 03:51:10,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:10,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945467031] [2021-12-28 03:51:10,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:10,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 03:51:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:11,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:11,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:11,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945467031] [2021-12-28 03:51:11,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945467031] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:11,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:11,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:51:11,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961241769] [2021-12-28 03:51:11,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:11,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:51:11,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:11,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:51:11,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:51:11,117 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) [2021-12-28 03:51:14,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:17,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:21,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:23,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:27,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:29,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:32,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:34,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:36,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:38,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:40,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:43,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:45,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:47,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:51,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:51,424 INFO L93 Difference]: Finished difference Result 9912 states and 15267 transitions. [2021-12-28 03:51:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:51:51,437 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 [2021-12-28 03:51:51,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:51,552 INFO L225 Difference]: With dead ends: 9912 [2021-12-28 03:51:51,552 INFO L226 Difference]: Without dead ends: 6698 [2021-12-28 03:51:51,603 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 [2021-12-28 03:51:51,623 INFO L933 BasicCegarLoop]: 5252 mSDtfsCounter, 5776 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 5598 mSolverCounterSat, 2482 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 8983 SdHoareTripleChecker+Invalid, 8092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2482 IncrementalHoareTripleChecker+Valid, 5598 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:51,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6580 Valid, 8983 Invalid, 8092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2482 Valid, 5598 Invalid, 12 Unknown, 0 Unchecked, 39.6s Time] [2021-12-28 03:51:51,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6698 states. [2021-12-28 03:51:52,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6698 to 6348. [2021-12-28 03:51:52,236 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) [2021-12-28 03:51:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 9652 transitions. [2021-12-28 03:51:52,289 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 9652 transitions. Word has length 23 [2021-12-28 03:51:52,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:52,289 INFO L470 AbstractCegarLoop]: Abstraction has 6348 states and 9652 transitions. [2021-12-28 03:51:52,290 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) [2021-12-28 03:51:52,290 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 9652 transitions. [2021-12-28 03:51:52,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-28 03:51:52,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:52,299 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] [2021-12-28 03:51:52,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:51:52,300 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:52,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:52,302 INFO L85 PathProgramCache]: Analyzing trace with hash 832541815, now seen corresponding path program 1 times [2021-12-28 03:51:52,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:52,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243071173] [2021-12-28 03:51:52,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:52,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:52,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 03:51:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:52,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:52,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243071173] [2021-12-28 03:51:52,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243071173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:52,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:52,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:51:52,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449425977] [2021-12-28 03:51:52,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:52,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:51:52,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:52,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:51:52,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:52,472 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) [2021-12-28 03:51:52,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:52,991 INFO L93 Difference]: Finished difference Result 16115 states and 24400 transitions. [2021-12-28 03:51:52,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:51:52,994 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 [2021-12-28 03:51:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:53,050 INFO L225 Difference]: With dead ends: 16115 [2021-12-28 03:51:53,052 INFO L226 Difference]: Without dead ends: 9770 [2021-12-28 03:51:53,086 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 [2021-12-28 03:51:53,088 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 [2021-12-28 03:51:53,088 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] [2021-12-28 03:51:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9770 states. [2021-12-28 03:51:53,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9770 to 9758. [2021-12-28 03:51:53,546 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) [2021-12-28 03:51:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9758 states to 9758 states and 14735 transitions. [2021-12-28 03:51:53,588 INFO L78 Accepts]: Start accepts. Automaton has 9758 states and 14735 transitions. Word has length 42 [2021-12-28 03:51:53,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:53,589 INFO L470 AbstractCegarLoop]: Abstraction has 9758 states and 14735 transitions. [2021-12-28 03:51:53,589 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) [2021-12-28 03:51:53,589 INFO L276 IsEmpty]: Start isEmpty. Operand 9758 states and 14735 transitions. [2021-12-28 03:51:53,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-28 03:51:53,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:53,592 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] [2021-12-28 03:51:53,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:51:53,593 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:53,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:53,599 INFO L85 PathProgramCache]: Analyzing trace with hash 93309406, now seen corresponding path program 1 times [2021-12-28 03:51:53,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:53,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32061739] [2021-12-28 03:51:53,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:53,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:53,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-28 03:51:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:53,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-28 03:51:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:53,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:53,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:53,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32061739] [2021-12-28 03:51:53,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32061739] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:53,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:53,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:51:53,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379113833] [2021-12-28 03:51:53,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:53,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:51:53,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:53,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:51:53,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:51:53,798 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)