./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.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 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:42:52,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:42:52,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:42:52,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:42:52,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:42:52,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:42:52,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:42:52,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:42:52,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:42:52,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:42:52,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:42:52,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:42:52,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:42:52,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:42:52,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:42:52,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:42:52,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:42:52,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:42:52,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:42:52,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:42:52,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:42:52,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:42:52,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:42:52,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:42:52,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:42:52,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:42:52,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:42:52,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:42:52,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:42:52,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:42:52,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:42:52,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:42:52,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:42:52,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:42:52,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:42:52,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:42:52,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:42:52,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:42:52,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:42:52,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:42:52,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:42:52,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:42:52,334 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:42:52,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:42:52,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:42:52,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:42:52,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:42:52,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:42:52,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:42:52,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:42:52,337 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:42:52,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:42:52,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:42:52,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:42:52,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:42:52,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:42:52,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:42:52,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:42:52,338 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:42:52,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:42:52,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:42:52,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:42:52,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:42:52,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:42:52,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:42:52,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:42:52,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:42:52,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:42:52,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:42:52,339 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:42:52,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:42:52,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:42:52,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:42:52,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2021-12-14 17:42:52,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:42:52,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:42:52,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:42:52,487 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:42:52,488 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:42:52,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-14 17:42:52,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0081162/d59471ee10bd4513804146c0761f6a31/FLAG834617898 [2021-12-14 17:42:53,181 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:42:53,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-14 17:42:53,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0081162/d59471ee10bd4513804146c0761f6a31/FLAG834617898 [2021-12-14 17:42:53,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0081162/d59471ee10bd4513804146c0761f6a31 [2021-12-14 17:42:53,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:42:53,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:42:53,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:42:53,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:42:53,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:42:53,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:42:53" (1/1) ... [2021-12-14 17:42:53,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9750712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:53, skipping insertion in model container [2021-12-14 17:42:53,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:42:53" (1/1) ... [2021-12-14 17:42:53,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:42:53,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:42:54,308 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2021-12-14 17:42:55,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:42:55,091 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:42:55,269 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2021-12-14 17:42:55,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:42:55,581 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:42:55,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55 WrapperNode [2021-12-14 17:42:55,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:42:55,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:42:55,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:42:55,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:42:55,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (1/1) ... [2021-12-14 17:42:55,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (1/1) ... [2021-12-14 17:42:55,835 INFO L137 Inliner]: procedures = 371, calls = 3017, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6286 [2021-12-14 17:42:55,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:42:55,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:42:55,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:42:55,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:42:55,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (1/1) ... [2021-12-14 17:42:55,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (1/1) ... [2021-12-14 17:42:55,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (1/1) ... [2021-12-14 17:42:55,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (1/1) ... [2021-12-14 17:42:55,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (1/1) ... [2021-12-14 17:42:55,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (1/1) ... [2021-12-14 17:42:56,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (1/1) ... [2021-12-14 17:42:56,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:42:56,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:42:56,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:42:56,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:42:56,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (1/1) ... [2021-12-14 17:42:56,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:42:56,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:42:56,115 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 17:42:56,121 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 17:42:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-14 17:42:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-14 17:42:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-14 17:42:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-14 17:42:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-14 17:42:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-14 17:42:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-14 17:42:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-14 17:42:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-14 17:42:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-14 17:42:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2021-12-14 17:42:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2021-12-14 17:42:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-14 17:42:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-14 17:42:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:42:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:42:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-14 17:42:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-14 17:42:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-14 17:42:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-14 17:42:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-14 17:42:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-14 17:42:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2021-12-14 17:42:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2021-12-14 17:42:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-14 17:42:56,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-14 17:42:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-14 17:42:56,144 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-14 17:42:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:42:56,144 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:42:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-14 17:42:56,144 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-14 17:42:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-14 17:42:56,144 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-14 17:42:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:42:56,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:42:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-14 17:42:56,145 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-14 17:42:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-14 17:42:56,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-14 17:42:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-14 17:42:56,145 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-14 17:42:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2021-12-14 17:42:56,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2021-12-14 17:42:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-14 17:42:56,146 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-14 17:42:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-14 17:42:56,146 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-14 17:42:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:42:56,146 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:42:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:42:56,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:42:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-12-14 17:42:56,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-12-14 17:42:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-14 17:42:56,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-14 17:42:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-14 17:42:56,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-14 17:42:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-14 17:42:56,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-14 17:42:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-14 17:42:56,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-14 17:42:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 17:42:56,149 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 17:42:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:42:56,150 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:42:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-14 17:42:56,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-14 17:42:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-14 17:42:56,150 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-14 17:42:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-14 17:42:56,150 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-14 17:42:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-14 17:42:56,151 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-14 17:42:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2021-12-14 17:42:56,151 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2021-12-14 17:42:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2021-12-14 17:42:56,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2021-12-14 17:42:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-14 17:42:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-14 17:42:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-14 17:42:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-14 17:42:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:42:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:42:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:42:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 17:42:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 17:42:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-14 17:42:56,153 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-14 17:42:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-14 17:42:56,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-14 17:42:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-14 17:42:56,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-14 17:42:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-14 17:42:56,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-14 17:42:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-14 17:42:56,154 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-14 17:42:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:42:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 17:42:56,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 17:42:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-14 17:42:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-14 17:42:56,155 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-14 17:42:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-14 17:42:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-14 17:42:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-14 17:42:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-14 17:42:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:42:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:42:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2021-12-14 17:42:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2021-12-14 17:42:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-14 17:42:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-14 17:42:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:42:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:42:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-12-14 17:42:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-12-14 17:42:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 17:42:56,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 17:42:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-14 17:42:56,160 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-14 17:42:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 17:42:56,160 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 17:42:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-14 17:42:56,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-14 17:42:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-14 17:42:56,162 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-14 17:42:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:42:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:42:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 17:42:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 17:42:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:42:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:42:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-14 17:42:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-14 17:42:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-14 17:42:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-14 17:42:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2021-12-14 17:42:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2021-12-14 17:42:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 17:42:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 17:42:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-14 17:42:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-14 17:42:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2021-12-14 17:42:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2021-12-14 17:42:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:42:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:42:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-14 17:42:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-14 17:42:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 17:42:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 17:42:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-14 17:42:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-14 17:42:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-14 17:42:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-14 17:42:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-14 17:42:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-14 17:42:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-14 17:42:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-14 17:42:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-14 17:42:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-14 17:42:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:42:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-14 17:42:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-14 17:42:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-14 17:42:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-14 17:42:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-12-14 17:42:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-12-14 17:42:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-14 17:42:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-14 17:42:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-14 17:42:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-14 17:42:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-14 17:42:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-14 17:42:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 17:42:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 17:42:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-14 17:42:56,171 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-14 17:42:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-14 17:42:56,171 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-14 17:42:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-14 17:42:56,171 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-14 17:42:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:42:56,171 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:42:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2021-12-14 17:42:56,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2021-12-14 17:42:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2021-12-14 17:42:56,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2021-12-14 17:42:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-14 17:42:56,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-14 17:42:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:42:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2021-12-14 17:42:56,172 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2021-12-14 17:42:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-14 17:42:56,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-14 17:42:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-14 17:42:56,173 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-14 17:42:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:42:56,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:42:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-14 17:42:56,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-14 17:42:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-14 17:42:56,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-14 17:42:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2021-12-14 17:42:56,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2021-12-14 17:42:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:42:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-14 17:42:56,174 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-14 17:42:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:42:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 17:42:56,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 17:42:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:42:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:42:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2021-12-14 17:42:56,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2021-12-14 17:42:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2021-12-14 17:42:56,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2021-12-14 17:42:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:42:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:42:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 17:42:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 17:42:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-14 17:42:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-14 17:42:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 17:42:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 17:42:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-14 17:42:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-14 17:42:56,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2021-12-14 17:42:56,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2021-12-14 17:42:56,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-14 17:42:56,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-14 17:42:56,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-14 17:42:56,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-14 17:42:56,176 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-14 17:42:56,176 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-14 17:42:56,176 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-14 17:42:56,176 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-14 17:42:56,177 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 17:42:56,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 17:42:56,177 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-14 17:42:56,177 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-14 17:42:56,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 17:42:56,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 17:42:56,177 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-14 17:42:56,177 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-14 17:42:56,178 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 17:42:56,180 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 17:42:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-14 17:42:56,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-14 17:42:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:42:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:42:56,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:42:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-14 17:42:56,181 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-14 17:42:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-14 17:42:56,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-14 17:42:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 17:42:56,182 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 17:42:56,754 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:42:56,756 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:42:57,046 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:42:57,440 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2021-12-14 17:43:02,452 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:43:02,481 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:43:02,481 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:43:02,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:43:02 BoogieIcfgContainer [2021-12-14 17:43:02,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:43:02,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:43:02,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:43:02,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:43:02,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:42:53" (1/3) ... [2021-12-14 17:43:02,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47852fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:43:02, skipping insertion in model container [2021-12-14 17:43:02,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:42:55" (2/3) ... [2021-12-14 17:43:02,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47852fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:43:02, skipping insertion in model container [2021-12-14 17:43:02,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:43:02" (3/3) ... [2021-12-14 17:43:02,496 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-14 17:43:02,500 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:43:02,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:43:02,548 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:43:02,561 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 17:43:02,561 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:43:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 2105 states, 1518 states have (on average 1.3399209486166008) internal successors, (2034), 1559 states have internal predecessors, (2034), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) [2021-12-14 17:43:02,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-14 17:43:02,623 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:43:02,624 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2021-12-14 17:43:02,624 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:43:02,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:43:02,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1989796788, now seen corresponding path program 1 times [2021-12-14 17:43:02,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:43:02,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794798912] [2021-12-14 17:43:02,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:43:02,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:43:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:03,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:43:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:43:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:03,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:43:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:03,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:43:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:03,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:43:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:03,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:43:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:03,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:43:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:03,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:43:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:03,229 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-14 17:43:03,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:43:03,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794798912] [2021-12-14 17:43:03,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794798912] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:43:03,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:43:03,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:43:03,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779610754] [2021-12-14 17:43:03,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:43:03,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:43:03,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:43:03,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:43:03,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:43:03,258 INFO L87 Difference]: Start difference. First operand has 2105 states, 1518 states have (on average 1.3399209486166008) internal successors, (2034), 1559 states have internal predecessors, (2034), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-14 17:43:06,782 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 17:43:11,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:43:11,555 INFO L93 Difference]: Finished difference Result 6691 states and 9849 transitions. [2021-12-14 17:43:11,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:43:11,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2021-12-14 17:43:11,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:43:11,594 INFO L225 Difference]: With dead ends: 6691 [2021-12-14 17:43:11,594 INFO L226 Difference]: Without dead ends: 4554 [2021-12-14 17:43:11,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 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 17:43:11,613 INFO L933 BasicCegarLoop]: 3161 mSDtfsCounter, 4027 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 1412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4347 SdHoareTripleChecker+Valid, 7065 SdHoareTripleChecker+Invalid, 3185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-12-14 17:43:11,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4347 Valid, 7065 Invalid, 3185 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1412 Valid, 1772 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2021-12-14 17:43:11,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2021-12-14 17:43:11,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 4048. [2021-12-14 17:43:11,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 2945 states have (on average 1.33276740237691) internal successors, (3925), 2988 states have internal predecessors, (3925), 866 states have call successors, (866), 237 states have call predecessors, (866), 236 states have return successors, (859), 837 states have call predecessors, (859), 859 states have call successors, (859) [2021-12-14 17:43:11,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5650 transitions. [2021-12-14 17:43:11,858 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5650 transitions. Word has length 69 [2021-12-14 17:43:11,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:43:11,859 INFO L470 AbstractCegarLoop]: Abstraction has 4048 states and 5650 transitions. [2021-12-14 17:43:11,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-14 17:43:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5650 transitions. [2021-12-14 17:43:11,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-14 17:43:11,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:43:11,868 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:43:11,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:43:11,869 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:43:11,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:43:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2119451424, now seen corresponding path program 1 times [2021-12-14 17:43:11,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:43:11,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037584067] [2021-12-14 17:43:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:43:11,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:43:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:43:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:43:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:43:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:43:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:43:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:43:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:43:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:43:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 17:43:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 17:43:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-14 17:43:12,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:43:12,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037584067] [2021-12-14 17:43:12,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037584067] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:43:12,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:43:12,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:43:12,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993298569] [2021-12-14 17:43:12,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:43:12,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:43:12,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:43:12,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:43:12,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:43:12,176 INFO L87 Difference]: Start difference. First operand 4048 states and 5650 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-14 17:43:15,420 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 17:43:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:43:20,253 INFO L93 Difference]: Finished difference Result 12746 states and 17994 transitions. [2021-12-14 17:43:20,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:43:20,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2021-12-14 17:43:20,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:43:20,301 INFO L225 Difference]: With dead ends: 12746 [2021-12-14 17:43:20,301 INFO L226 Difference]: Without dead ends: 8719 [2021-12-14 17:43:20,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 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 17:43:20,320 INFO L933 BasicCegarLoop]: 3104 mSDtfsCounter, 3824 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 1358 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4156 SdHoareTripleChecker+Valid, 6890 SdHoareTripleChecker+Invalid, 3216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1358 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-14 17:43:20,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4156 Valid, 6890 Invalid, 3216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1358 Valid, 1857 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-12-14 17:43:20,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8719 states. [2021-12-14 17:43:20,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8719 to 7670. [2021-12-14 17:43:20,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7670 states, 5584 states have (on average 1.3273638968481376) internal successors, (7412), 5665 states have internal predecessors, (7412), 1627 states have call successors, (1627), 459 states have call predecessors, (1627), 458 states have return successors, (1620), 1575 states have call predecessors, (1620), 1620 states have call successors, (1620) [2021-12-14 17:43:20,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 10659 transitions. [2021-12-14 17:43:20,659 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 10659 transitions. Word has length 89 [2021-12-14 17:43:20,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:43:20,660 INFO L470 AbstractCegarLoop]: Abstraction has 7670 states and 10659 transitions. [2021-12-14 17:43:20,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-14 17:43:20,661 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 10659 transitions. [2021-12-14 17:43:20,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-14 17:43:20,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:43:20,686 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 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, 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 17:43:20,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:43:20,688 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:43:20,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:43:20,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1481995065, now seen corresponding path program 1 times [2021-12-14 17:43:20,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:43:20,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551901153] [2021-12-14 17:43:20,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:43:20,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:43:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:43:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:43:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:43:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:43:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:43:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:43:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:43:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:43:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 17:43:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:43:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:43:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:20,977 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-14 17:43:20,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:43:20,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551901153] [2021-12-14 17:43:20,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551901153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:43:20,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:43:20,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:43:20,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902638582] [2021-12-14 17:43:20,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:43:20,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:43:20,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:43:20,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:43:20,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:43:20,985 INFO L87 Difference]: Start difference. First operand 7670 states and 10659 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 17:43:24,291 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 17:43:32,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:43:32,936 INFO L93 Difference]: Finished difference Result 29996 states and 43373 transitions. [2021-12-14 17:43:32,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 17:43:32,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2021-12-14 17:43:32,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:43:33,061 INFO L225 Difference]: With dead ends: 29996 [2021-12-14 17:43:33,063 INFO L226 Difference]: Without dead ends: 22347 [2021-12-14 17:43:33,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:43:33,107 INFO L933 BasicCegarLoop]: 3157 mSDtfsCounter, 7746 mSDsluCounter, 4866 mSDsCounter, 0 mSdLazyCounter, 4039 mSolverCounterSat, 4138 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8205 SdHoareTripleChecker+Valid, 8023 SdHoareTripleChecker+Invalid, 8178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4138 IncrementalHoareTripleChecker+Valid, 4039 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:43:33,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8205 Valid, 8023 Invalid, 8178 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4138 Valid, 4039 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2021-12-14 17:43:33,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22347 states. [2021-12-14 17:43:33,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22347 to 15170. [2021-12-14 17:43:33,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15170 states, 11050 states have (on average 1.3270588235294118) internal successors, (14664), 11207 states have internal predecessors, (14664), 3207 states have call successors, (3207), 913 states have call predecessors, (3207), 912 states have return successors, (3200), 3109 states have call predecessors, (3200), 3200 states have call successors, (3200) [2021-12-14 17:43:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15170 states to 15170 states and 21071 transitions. [2021-12-14 17:43:33,975 INFO L78 Accepts]: Start accepts. Automaton has 15170 states and 21071 transitions. Word has length 97 [2021-12-14 17:43:33,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:43:33,976 INFO L470 AbstractCegarLoop]: Abstraction has 15170 states and 21071 transitions. [2021-12-14 17:43:33,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 17:43:33,977 INFO L276 IsEmpty]: Start isEmpty. Operand 15170 states and 21071 transitions. [2021-12-14 17:43:33,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-14 17:43:33,995 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:43:33,995 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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, 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 17:43:33,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:43:33,996 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:43:33,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:43:33,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1715328829, now seen corresponding path program 1 times [2021-12-14 17:43:33,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:43:33,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985822679] [2021-12-14 17:43:33,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:43:33,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:43:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:43:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:43:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:43:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:43:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:43:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:43:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:43:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:43:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 17:43:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:43:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:34,200 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-14 17:43:34,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:43:34,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985822679] [2021-12-14 17:43:34,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985822679] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:43:34,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:43:34,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:43:34,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610994896] [2021-12-14 17:43:34,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:43:34,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:43:34,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:43:34,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:43:34,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:43:34,203 INFO L87 Difference]: Start difference. First operand 15170 states and 21071 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-14 17:43:36,868 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 17:43:46,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:43:46,303 INFO L93 Difference]: Finished difference Result 58956 states and 86037 transitions. [2021-12-14 17:43:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 17:43:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2021-12-14 17:43:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:43:46,547 INFO L225 Difference]: With dead ends: 58956 [2021-12-14 17:43:46,548 INFO L226 Difference]: Without dead ends: 43807 [2021-12-14 17:43:46,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:43:46,625 INFO L933 BasicCegarLoop]: 3072 mSDtfsCounter, 7614 mSDsluCounter, 4928 mSDsCounter, 0 mSdLazyCounter, 4075 mSolverCounterSat, 4131 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8050 SdHoareTripleChecker+Valid, 8000 SdHoareTripleChecker+Invalid, 8207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4131 IncrementalHoareTripleChecker+Valid, 4075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-12-14 17:43:46,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8050 Valid, 8000 Invalid, 8207 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4131 Valid, 4075 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2021-12-14 17:43:46,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43807 states. [2021-12-14 17:43:47,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43807 to 38538. [2021-12-14 17:43:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38538 states, 28142 states have (on average 1.3164664913652193) internal successors, (37048), 28354 states have internal predecessors, (37048), 7991 states have call successors, (7991), 1797 states have call predecessors, (7991), 2404 states have return successors, (10352), 8534 states have call predecessors, (10352), 7984 states have call successors, (10352) [2021-12-14 17:43:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38538 states to 38538 states and 55391 transitions. [2021-12-14 17:43:48,200 INFO L78 Accepts]: Start accepts. Automaton has 38538 states and 55391 transitions. Word has length 93 [2021-12-14 17:43:48,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:43:48,200 INFO L470 AbstractCegarLoop]: Abstraction has 38538 states and 55391 transitions. [2021-12-14 17:43:48,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-14 17:43:48,201 INFO L276 IsEmpty]: Start isEmpty. Operand 38538 states and 55391 transitions. [2021-12-14 17:43:48,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-14 17:43:48,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:43:48,222 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:43:48,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:43:48,222 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:43:48,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:43:48,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2146301045, now seen corresponding path program 1 times [2021-12-14 17:43:48,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:43:48,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357168162] [2021-12-14 17:43:48,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:43:48,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:43:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:43:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:43:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:43:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:43:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:43:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:43:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:43:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:43:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:43:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 17:43:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:43:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-14 17:43:48,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:43:48,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357168162] [2021-12-14 17:43:48,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357168162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:43:48,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:43:48,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:43:48,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019850814] [2021-12-14 17:43:48,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:43:48,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:43:48,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:43:48,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:43:48,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:43:48,694 INFO L87 Difference]: Start difference. First operand 38538 states and 55391 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)