./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:38:25,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:38:25,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:38:25,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:38:25,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:38:25,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:38:25,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:38:25,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:38:25,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:38:25,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:38:25,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:38:25,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:38:25,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:38:25,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:38:25,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:38:25,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:38:25,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:38:25,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:38:25,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:38:25,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:38:25,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:38:25,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:38:25,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:38:25,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:38:25,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:38:25,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:38:25,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:38:25,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:38:25,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:38:25,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:38:25,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:38:25,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:38:25,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:38:25,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:38:25,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:38:25,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:38:25,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:38:25,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:38:25,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:38:25,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:38:25,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:38:25,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:38:25,208 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:38:25,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:38:25,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:38:25,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:38:25,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:38:25,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:38:25,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:38:25,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:38:25,210 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:38:25,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:38:25,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:38:25,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:38:25,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:38:25,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:38:25,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:38:25,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:38:25,211 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:38:25,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:38:25,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:38:25,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:38:25,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:38:25,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:38:25,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:38:25,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:38:25,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:38:25,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:38:25,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:38:25,213 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:38:25,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:38:25,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:38:25,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:38:25,214 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 [2021-12-14 17:38:25,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:38:25,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:38:25,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:38:25,409 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:38:25,409 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:38:25,410 INFO L432 ainManager$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 [2021-12-14 17:38:25,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d09f2be/4c9e8178512b4e6c8ccd0e1afab81203/FLAGa00376f35 [2021-12-14 17:38:26,168 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:38:26,169 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 [2021-12-14 17:38:26,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d09f2be/4c9e8178512b4e6c8ccd0e1afab81203/FLAGa00376f35 [2021-12-14 17:38:26,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d09f2be/4c9e8178512b4e6c8ccd0e1afab81203 [2021-12-14 17:38:26,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:38:26,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:38:26,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:38:26,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:38:26,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:38:26,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:38:26" (1/1) ... [2021-12-14 17:38:26,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6489a791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:26, skipping insertion in model container [2021-12-14 17:38:26,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:38:26" (1/1) ... [2021-12-14 17:38:26,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:38:26,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:38:28,428 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] [2021-12-14 17:38:28,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:38:28,583 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:38:28,946 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] [2021-12-14 17:38:28,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:38:29,140 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:38:29,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29 WrapperNode [2021-12-14 17:38:29,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:38:29,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:38:29,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:38:29,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:38:29,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,529 INFO L137 Inliner]: procedures = 395, calls = 4058, calls flagged for inlining = 199, calls inlined = 146, statements flattened = 7281 [2021-12-14 17:38:29,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:38:29,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:38:29,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:38:29,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:38:29,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:38:29,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:38:29,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:38:29,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:38:29,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:38:29,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:38:29,900 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) [2021-12-14 17:38:29,938 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 [2021-12-14 17:38:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_wait_until_sent [2021-12-14 17:38:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_wait_until_sent [2021-12-14 17:38:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-14 17:38:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 17:38:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 17:38:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_start [2021-12-14 17:38:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_start [2021-12-14 17:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_txidle [2021-12-14 17:38:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_txidle [2021-12-14 17:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2021-12-14 17:38:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2021-12-14 17:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:38:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:38:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopback_frame [2021-12-14 17:38:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopback_frame [2021-12-14 17:38:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-14 17:38:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-14 17:38:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_receiver [2021-12-14 17:38:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_receiver [2021-12-14 17:38:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_serial_signals [2021-12-14 17:38:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_serial_signals [2021-12-14 17:38:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_trace_block [2021-12-14 17:38:29,970 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_trace_block [2021-12-14 17:38:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-14 17:38:29,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-14 17:38:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 17:38:29,970 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 17:38:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mgsl_ops_disconnect_2 [2021-12-14 17:38:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mgsl_ops_disconnect_2 [2021-12-14 17:38:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2021-12-14 17:38:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2021-12-14 17:38:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:38:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:38:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-14 17:38:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2021-12-14 17:38:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2021-12-14 17:38:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure load_next_tx_holding_buffer [2021-12-14 17:38:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure load_next_tx_holding_buffer [2021-12-14 17:38:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:38:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:38:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-14 17:38:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-14 17:38:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:38:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-14 17:38:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-14 17:38:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-14 17:38:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-14 17:38:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-14 17:38:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-14 17:38:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-14 17:38:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-14 17:38:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:38:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:38:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2021-12-14 17:38:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2021-12-14 17:38:29,975 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutDmaReg [2021-12-14 17:38:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutDmaReg [2021-12-14 17:38:29,975 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 17:38:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 17:38:29,976 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_cancel_transmit [2021-12-14 17:38:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_cancel_transmit [2021-12-14 17:38:29,976 INFO L130 BoogieDeclarations]: Found specification of procedure usc_load_txfifo [2021-12-14 17:38:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_load_txfifo [2021-12-14 17:38:29,977 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-14 17:38:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-14 17:38:29,977 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2021-12-14 17:38:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2021-12-14 17:38:29,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:38:29,977 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 17:38:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 17:38:29,977 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 17:38:29,978 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 17:38:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 17:38:29,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 17:38:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:38:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:38:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure usc_reset [2021-12-14 17:38:29,978 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_reset [2021-12-14 17:38:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_free_frame_memory [2021-12-14 17:38:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_free_frame_memory [2021-12-14 17:38:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InReg [2021-12-14 17:38:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InReg [2021-12-14 17:38:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-14 17:38:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-14 17:38:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure usc_enable_loopback [2021-12-14 17:38:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_enable_loopback [2021-12-14 17:38:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_load_tx_dma_buffer [2021-12-14 17:38:29,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_load_tx_dma_buffer [2021-12-14 17:38:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure usc_DmaCmd [2021-12-14 17:38:29,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_DmaCmd [2021-12-14 17:38:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_buffer [2021-12-14 17:38:29,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_buffer [2021-12-14 17:38:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-14 17:38:29,981 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-14 17:38:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-14 17:38:29,981 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-14 17:38:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure usc_RTCmd [2021-12-14 17:38:29,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_RTCmd [2021-12-14 17:38:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:38:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_sdlc_mode [2021-12-14 17:38:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_sdlc_mode [2021-12-14 17:38:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_receiver [2021-12-14 17:38:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_receiver [2021-12-14 17:38:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:38:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:38:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:38:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 17:38:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 17:38:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_add_device [2021-12-14 17:38:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_add_device [2021-12-14 17:38:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_unthrottle [2021-12-14 17:38:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_unthrottle [2021-12-14 17:38:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_throttle [2021-12-14 17:38:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_throttle [2021-12-14 17:38:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutReg [2021-12-14 17:38:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutReg [2021-12-14 17:38:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 17:38:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 17:38:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2021-12-14 17:38:29,987 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2021-12-14 17:38:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_set_termios [2021-12-14 17:38:29,988 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_set_termios [2021-12-14 17:38:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-14 17:38:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-14 17:38:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 17:38:29,990 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 17:38:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_transmitter [2021-12-14 17:38:29,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_transmitter [2021-12-14 17:38:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:38:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:38:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-14 17:38:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-14 17:38:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:38:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:38:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_chars [2021-12-14 17:38:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_chars [2021-12-14 17:38:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:38:29,995 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:38:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-14 17:38:29,995 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-14 17:38:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_send_xchar [2021-12-14 17:38:29,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_send_xchar [2021-12-14 17:38:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_change_params [2021-12-14 17:38:29,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_change_params [2021-12-14 17:38:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:38:29,996 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:38:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:38:29,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:38:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure usc_get_serial_signals [2021-12-14 17:38:29,996 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_get_serial_signals [2021-12-14 17:38:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_reset_rx_dma_buffers [2021-12-14 17:38:29,996 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_reset_rx_dma_buffers [2021-12-14 17:38:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:38:29,996 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:38:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 17:38:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 17:38:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_transmitter [2021-12-14 17:38:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_transmitter [2021-12-14 17:38:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-14 17:38:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-14 17:38:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-14 17:38:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-14 17:38:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 17:38:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 17:38:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_paranoia_check [2021-12-14 17:38:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_paranoia_check [2021-12-14 17:38:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InDmaReg [2021-12-14 17:38:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InDmaReg [2021-12-14 17:38:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:38:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:38:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_active [2021-12-14 17:38:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_active [2021-12-14 17:38:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_stop [2021-12-14 17:38:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_stop [2021-12-14 17:38:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-14 17:38:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-14 17:38:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:38:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_remove_one [2021-12-14 17:38:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_remove_one [2021-12-14 17:38:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 17:38:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 17:38:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_cleanup [2021-12-14 17:38:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_cleanup [2021-12-14 17:38:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-14 17:38:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-14 17:38:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 17:38:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 17:38:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-14 17:38:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-14 17:38:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-14 17:38:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-14 17:38:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-14 17:38:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-14 17:38:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_write_room [2021-12-14 17:38:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_write_room [2021-12-14 17:38:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_break [2021-12-14 17:38:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_break [2021-12-14 17:38:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_allocate_device [2021-12-14 17:38:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_allocate_device [2021-12-14 17:38:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-14 17:38:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-14 17:38:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_install [2021-12-14 17:38:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_install [2021-12-14 17:38:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2021-12-14 17:38:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2021-12-14 17:38:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_release_resources [2021-12-14 17:38:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_release_resources [2021-12-14 17:38:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-14 17:38:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-14 17:38:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 17:38:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 17:38:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 17:38:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 17:38:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_send_done [2021-12-14 17:38:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_send_done [2021-12-14 17:38:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 17:38:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 17:38:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-14 17:38:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-14 17:38:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:38:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:38:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_ioctl [2021-12-14 17:38:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_ioctl [2021-12-14 17:38:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-14 17:38:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-14 17:38:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:38:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:38:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:38:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure msgl_get_icount [2021-12-14 17:38:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure msgl_get_icount [2021-12-14 17:38:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_chars_in_buffer [2021-12-14 17:38:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_chars_in_buffer [2021-12-14 17:38:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-14 17:38:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-14 17:38:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-14 17:38:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-14 17:38:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 17:38:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 17:38:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_put_char [2021-12-14 17:38:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_put_char [2021-12-14 17:38:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_program_hw [2021-12-14 17:38:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_program_hw [2021-12-14 17:38:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2021-12-14 17:38:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2021-12-14 17:38:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_hangup [2021-12-14 17:38:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_hangup [2021-12-14 17:38:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-14 17:38:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-14 17:38:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-12-14 17:38:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-12-14 17:38:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-14 17:38:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-14 17:38:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:38:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_alloc_frame_memory [2021-12-14 17:38:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_alloc_frame_memory [2021-12-14 17:38:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-14 17:38:30,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-14 17:38:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-14 17:38:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-14 17:38:30,793 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:38:30,795 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:38:50,417 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:38:50,442 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:38:50,442 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:38:50,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:38:50 BoogieIcfgContainer [2021-12-14 17:38:50,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:38:50,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:38:50,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:38:50,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:38:50,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:38:26" (1/3) ... [2021-12-14 17:38:50,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea5da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:38:50, skipping insertion in model container [2021-12-14 17:38:50,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (2/3) ... [2021-12-14 17:38:50,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea5da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:38:50, skipping insertion in model container [2021-12-14 17:38:50,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:38:50" (3/3) ... [2021-12-14 17:38:50,452 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2021-12-14 17:38:50,456 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:38:50,456 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:38:50,497 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:38:50,501 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 [2021-12-14 17:38:50,501 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:38:50,570 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) [2021-12-14 17:38:50,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-14 17:38:50,578 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:50,578 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] [2021-12-14 17:38:50,579 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:50,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash -932140242, now seen corresponding path program 1 times [2021-12-14 17:38:50,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:50,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176357178] [2021-12-14 17:38:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:50,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:51,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 17:38:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:51,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:51,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176357178] [2021-12-14 17:38:51,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176357178] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:51,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:51,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:38:51,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392819525] [2021-12-14 17:38:51,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:51,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:38:51,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:51,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:38:51,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:38:51,108 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) [2021-12-14 17:38:55,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:38:57,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:03,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:05,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:08,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:11,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:14,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:16,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:18,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:20,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:22,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:25,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:27,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:29,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:32,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:39:32,849 INFO L93 Difference]: Finished difference Result 9912 states and 15267 transitions. [2021-12-14 17:39:32,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:39:32,871 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 [2021-12-14 17:39:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:39:32,968 INFO L225 Difference]: With dead ends: 9912 [2021-12-14 17:39:32,968 INFO L226 Difference]: Without dead ends: 6698 [2021-12-14 17:39:33,005 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 [2021-12-14 17:39:33,009 INFO L933 BasicCegarLoop]: 5253 mSDtfsCounter, 5776 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 4661 mSolverCounterSat, 2482 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 9922 SdHoareTripleChecker+Invalid, 7156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2482 IncrementalHoareTripleChecker+Valid, 4661 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2021-12-14 17:39:33,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6580 Valid, 9922 Invalid, 7156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2482 Valid, 4661 Invalid, 13 Unknown, 0 Unchecked, 40.8s Time] [2021-12-14 17:39:33,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6698 states. [2021-12-14 17:39:33,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6698 to 6348. [2021-12-14 17:39:33,368 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) [2021-12-14 17:39:33,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 9652 transitions. [2021-12-14 17:39:33,422 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 9652 transitions. Word has length 23 [2021-12-14 17:39:33,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:39:33,422 INFO L470 AbstractCegarLoop]: Abstraction has 6348 states and 9652 transitions. [2021-12-14 17:39:33,423 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) [2021-12-14 17:39:33,423 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 9652 transitions. [2021-12-14 17:39:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-14 17:39:33,435 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:39:33,436 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] [2021-12-14 17:39:33,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:39:33,436 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:39:33,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:39:33,438 INFO L85 PathProgramCache]: Analyzing trace with hash 832541815, now seen corresponding path program 1 times [2021-12-14 17:39:33,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:39:33,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900088258] [2021-12-14 17:39:33,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:39:33,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:39:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 17:39:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:39:33,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:39:33,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900088258] [2021-12-14 17:39:33,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900088258] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:39:33,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:39:33,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:39:33,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593716004] [2021-12-14 17:39:33,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:39:33,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:39:33,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:39:33,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:39:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:39:33,631 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) [2021-12-14 17:39:34,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:39:34,112 INFO L93 Difference]: Finished difference Result 16115 states and 24400 transitions. [2021-12-14 17:39:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:39:34,112 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 [2021-12-14 17:39:34,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:39:34,166 INFO L225 Difference]: With dead ends: 16115 [2021-12-14 17:39:34,166 INFO L226 Difference]: Without dead ends: 9770 [2021-12-14 17:39:34,200 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 [2021-12-14 17:39:34,203 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, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:39:34,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2584 Valid, 10859 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 17:39:34,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9770 states. [2021-12-14 17:39:34,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9770 to 9758. [2021-12-14 17:39:34,594 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)