./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.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 ac653d5d4bd645822c87d49861fb2a5e304e57a9bdc7e425845f1dc10a0731d2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:52:19,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:52:19,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:52:19,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:52:19,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:52:19,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:52:19,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:52:20,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:52:20,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:52:20,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:52:20,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:52:20,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:52:20,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:52:20,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:52:20,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:52:20,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:52:20,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:52:20,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:52:20,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:52:20,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:52:20,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:52:20,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:52:20,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:52:20,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:52:20,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:52:20,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:52:20,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:52:20,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:52:20,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:52:20,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:52:20,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:52:20,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:52:20,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:52:20,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:52:20,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:52:20,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:52:20,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:52:20,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:52:20,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:52:20,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:52:20,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:52:20,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:52:20,107 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:52:20,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:52:20,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:52:20,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:52:20,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:52:20,110 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:52:20,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:52:20,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:52:20,112 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:52:20,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:52:20,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:52:20,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:52:20,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:52:20,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:52:20,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:52:20,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:52:20,114 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:52:20,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:52:20,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:52:20,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:52:20,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:52:20,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:52:20,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:52:20,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:52:20,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:52:20,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:52:20,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:52:20,116 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:52:20,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:52:20,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:52:20,117 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac653d5d4bd645822c87d49861fb2a5e304e57a9bdc7e425845f1dc10a0731d2 [2021-12-28 03:52:20,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:52:20,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:52:20,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:52:20,479 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:52:20,479 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:52:20,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2021-12-28 03:52:20,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35571c302/7bd9462416a24420a8a05eb48a8ab6c7/FLAGf3eba925b [2021-12-28 03:52:21,365 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:52:21,366 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2021-12-28 03:52:21,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35571c302/7bd9462416a24420a8a05eb48a8ab6c7/FLAGf3eba925b [2021-12-28 03:52:21,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35571c302/7bd9462416a24420a8a05eb48a8ab6c7 [2021-12-28 03:52:21,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:52:21,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:52:21,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:52:21,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:52:21,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:52:21,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:52:21" (1/1) ... [2021-12-28 03:52:21,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4812be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:21, skipping insertion in model container [2021-12-28 03:52:21,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:52:21" (1/1) ... [2021-12-28 03:52:21,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:52:22,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:52:24,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i[258672,258685] [2021-12-28 03:52:24,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:52:24,227 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:52:24,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i[258672,258685] [2021-12-28 03:52:24,803 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:52:24,936 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:52:24,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24 WrapperNode [2021-12-28 03:52:24,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:52:24,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:52:24,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:52:24,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:52:24,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (1/1) ... [2021-12-28 03:52:25,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (1/1) ... [2021-12-28 03:52:25,299 INFO L137 Inliner]: procedures = 373, calls = 2971, calls flagged for inlining = 172, calls inlined = 164, statements flattened = 5915 [2021-12-28 03:52:25,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:52:25,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:52:25,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:52:25,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:52:25,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (1/1) ... [2021-12-28 03:52:25,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (1/1) ... [2021-12-28 03:52:25,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (1/1) ... [2021-12-28 03:52:25,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (1/1) ... [2021-12-28 03:52:25,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (1/1) ... [2021-12-28 03:52:25,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (1/1) ... [2021-12-28 03:52:25,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (1/1) ... [2021-12-28 03:52:25,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:52:25,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:52:25,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:52:25,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:52:25,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (1/1) ... [2021-12-28 03:52:25,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:52:25,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:52:25,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 03:52:25,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 03:52:25,701 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-28 03:52:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-28 03:52:25,702 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-28 03:52:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-28 03:52:25,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-28 03:52:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-28 03:52:25,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-28 03:52:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-28 03:52:25,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-28 03:52:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-28 03:52:25,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-28 03:52:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-28 03:52:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-28 03:52:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-28 03:52:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-28 03:52:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-28 03:52:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-28 03:52:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-28 03:52:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-28 03:52:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-28 03:52:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-28 03:52:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-28 03:52:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-28 03:52:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-28 03:52:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-28 03:52:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-28 03:52:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-28 03:52:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-28 03:52:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:52:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:52:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-28 03:52:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-28 03:52:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-28 03:52:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-28 03:52:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-28 03:52:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-28 03:52:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-28 03:52:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-28 03:52:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:52:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:52:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-28 03:52:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-28 03:52:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:52:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:52:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-28 03:52:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-28 03:52:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-28 03:52:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-28 03:52:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-28 03:52:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-28 03:52:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-28 03:52:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-28 03:52:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-28 03:52:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-28 03:52:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 03:52:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 03:52:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_get_by_index [2021-12-28 03:52:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_get_by_index [2021-12-28 03:52:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-28 03:52:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-28 03:52:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-28 03:52:25,714 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-28 03:52:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-28 03:52:25,714 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-28 03:52:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-28 03:52:25,715 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-28 03:52:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2021-12-28 03:52:25,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2021-12-28 03:52:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 03:52:25,715 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 03:52:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-28 03:52:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-28 03:52:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-28 03:52:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-28 03:52:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:52:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:52:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:52:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 03:52:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 03:52:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-28 03:52:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-28 03:52:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-28 03:52:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-28 03:52:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-28 03:52:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-28 03:52:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-28 03:52:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-28 03:52:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-28 03:52:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-28 03:52:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-12-28 03:52:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-12-28 03:52:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:52:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 03:52:25,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 03:52:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-28 03:52:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-28 03:52:25,721 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-28 03:52:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-28 03:52:25,722 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-28 03:52:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:52:25,723 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:52:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-28 03:52:25,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-28 03:52:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:52:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:52:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-12-28 03:52:25,724 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-12-28 03:52:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 03:52:25,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 03:52:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-28 03:52:25,725 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-28 03:52:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-12-28 03:52:25,725 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-12-28 03:52:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-28 03:52:25,725 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-28 03:52:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 03:52:25,726 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 03:52:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-28 03:52:25,726 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-28 03:52:25,727 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-28 03:52:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-28 03:52:25,729 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 03:52:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 03:52:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:52:25,730 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:52:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-28 03:52:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-28 03:52:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-28 03:52:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-28 03:52:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 03:52:25,738 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 03:52:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-28 03:52:25,738 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-28 03:52:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-28 03:52:25,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-28 03:52:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-28 03:52:25,739 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-28 03:52:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-28 03:52:25,739 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-28 03:52:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 03:52:25,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 03:52:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-28 03:52:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-28 03:52:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-28 03:52:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-28 03:52:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-28 03:52:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-28 03:52:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-28 03:52:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-28 03:52:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-28 03:52:25,741 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-28 03:52:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-28 03:52:25,741 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-28 03:52:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:52:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-28 03:52:25,741 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-28 03:52:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-28 03:52:25,742 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-28 03:52:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-28 03:52:25,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-28 03:52:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-28 03:52:25,742 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-28 03:52:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-28 03:52:25,742 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-28 03:52:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 03:52:25,743 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 03:52:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-28 03:52:25,743 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-28 03:52:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-28 03:52:25,743 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-28 03:52:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-28 03:52:25,744 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-28 03:52:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:52:25,744 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:52:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-28 03:52:25,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-28 03:52:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:52:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-28 03:52:25,744 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-28 03:52:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-28 03:52:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-28 03:52:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-28 03:52:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:52:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:52:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-28 03:52:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-28 03:52:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-28 03:52:25,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-28 03:52:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2021-12-28 03:52:25,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2021-12-28 03:52:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:52:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-28 03:52:25,746 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-28 03:52:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:52:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:52:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 03:52:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 03:52:25,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 03:52:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:52:25,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:52:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-28 03:52:25,748 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-28 03:52:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2021-12-28 03:52:25,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2021-12-28 03:52:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 03:52:25,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 03:52:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-28 03:52:25,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-28 03:52:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2021-12-28 03:52:25,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2021-12-28 03:52:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-28 03:52:25,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-28 03:52:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-28 03:52:25,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-28 03:52:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-28 03:52:25,750 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-28 03:52:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 03:52:25,750 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 03:52:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-28 03:52:25,750 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-28 03:52:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 03:52:25,750 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 03:52:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-28 03:52:25,751 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-28 03:52:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:52:25,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:52:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-28 03:52:25,751 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-28 03:52:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 03:52:25,752 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 03:52:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:52:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 03:52:25,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 03:52:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:52:25,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:52:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-28 03:52:25,753 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-28 03:52:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-28 03:52:25,753 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-28 03:52:26,508 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:52:26,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:52:33,962 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:52:33,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:52:33,988 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 03:52:33,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:52:33 BoogieIcfgContainer [2021-12-28 03:52:33,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:52:33,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:52:33,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:52:34,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:52:34,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:52:21" (1/3) ... [2021-12-28 03:52:34,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f0a278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:52:34, skipping insertion in model container [2021-12-28 03:52:34,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:52:24" (2/3) ... [2021-12-28 03:52:34,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f0a278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:52:34, skipping insertion in model container [2021-12-28 03:52:34,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:52:33" (3/3) ... [2021-12-28 03:52:34,004 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2021-12-28 03:52:34,009 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:52:34,011 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:52:34,076 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:52:34,081 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 03:52:34,082 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:52:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 1845 states, 1279 states have (on average 1.3096168881939014) internal successors, (1675), 1313 states have internal predecessors, (1675), 452 states have call successors, (452), 112 states have call predecessors, (452), 112 states have return successors, (452), 438 states have call predecessors, (452), 452 states have call successors, (452) [2021-12-28 03:52:34,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-28 03:52:34,138 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:52:34,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:52:34,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:52:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:52:34,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1524047706, now seen corresponding path program 1 times [2021-12-28 03:52:34,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:52:34,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108833026] [2021-12-28 03:52:34,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:52:34,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:52:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:52:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:34,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:52:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 03:52:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:34,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 03:52:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:34,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:52:34,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:52:34,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108833026] [2021-12-28 03:52:34,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108833026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:52:34,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:52:34,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:52:34,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114495627] [2021-12-28 03:52:34,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:52:34,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:52:34,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:52:34,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:52:34,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:52:34,830 INFO L87 Difference]: Start difference. First operand has 1845 states, 1279 states have (on average 1.3096168881939014) internal successors, (1675), 1313 states have internal predecessors, (1675), 452 states have call successors, (452), 112 states have call predecessors, (452), 112 states have return successors, (452), 438 states have call predecessors, (452), 452 states have call successors, (452) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:52:47,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:52:47,060 INFO L93 Difference]: Finished difference Result 5926 states and 8748 transitions. [2021-12-28 03:52:47,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:52:47,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2021-12-28 03:52:47,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:52:47,112 INFO L225 Difference]: With dead ends: 5926 [2021-12-28 03:52:47,112 INFO L226 Difference]: Without dead ends: 4084 [2021-12-28 03:52:47,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-28 03:52:47,135 INFO L933 BasicCegarLoop]: 2519 mSDtfsCounter, 5448 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 5113 mSolverCounterSat, 3194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5770 SdHoareTripleChecker+Valid, 4180 SdHoareTripleChecker+Invalid, 8307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3194 IncrementalHoareTripleChecker+Valid, 5113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2021-12-28 03:52:47,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5770 Valid, 4180 Invalid, 8307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3194 Valid, 5113 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2021-12-28 03:52:47,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4084 states. [2021-12-28 03:52:47,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4084 to 3549. [2021-12-28 03:52:47,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3549 states, 2469 states have (on average 1.296881328473066) internal successors, (3202), 2526 states have internal predecessors, (3202), 839 states have call successors, (839), 220 states have call predecessors, (839), 240 states have return successors, (942), 821 states have call predecessors, (942), 823 states have call successors, (942) [2021-12-28 03:52:47,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4983 transitions. [2021-12-28 03:52:47,548 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4983 transitions. Word has length 32 [2021-12-28 03:52:47,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:52:47,549 INFO L470 AbstractCegarLoop]: Abstraction has 3549 states and 4983 transitions. [2021-12-28 03:52:47,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:52:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4983 transitions. [2021-12-28 03:52:47,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-28 03:52:47,553 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:52:47,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:52:47,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:52:47,555 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:52:47,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:52:47,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1075164, now seen corresponding path program 1 times [2021-12-28 03:52:47,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:52:47,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674862887] [2021-12-28 03:52:47,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:52:47,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:52:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:52:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:47,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:52:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:47,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 03:52:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:47,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 03:52:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:52:47,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:52:47,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674862887] [2021-12-28 03:52:47,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674862887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:52:47,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:52:47,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:52:47,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090528685] [2021-12-28 03:52:47,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:52:47,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:52:47,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:52:47,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:52:47,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:52:47,836 INFO L87 Difference]: Start difference. First operand 3549 states and 4983 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:52:53,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:52:53,639 INFO L93 Difference]: Finished difference Result 4152 states and 5960 transitions. [2021-12-28 03:52:53,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:52:53,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2021-12-28 03:52:53,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:52:53,666 INFO L225 Difference]: With dead ends: 4152 [2021-12-28 03:52:53,666 INFO L226 Difference]: Without dead ends: 4149 [2021-12-28 03:52:53,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-28 03:52:53,670 INFO L933 BasicCegarLoop]: 2111 mSDtfsCounter, 3971 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 2459 mSolverCounterSat, 2111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4200 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 4570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2111 IncrementalHoareTripleChecker+Valid, 2459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-28 03:52:53,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4200 Valid, 3023 Invalid, 4570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2111 Valid, 2459 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-28 03:52:53,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2021-12-28 03:52:53,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 3548. [2021-12-28 03:52:53,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3548 states, 2469 states have (on average 1.2964763061968407) internal successors, (3201), 2525 states have internal predecessors, (3201), 838 states have call successors, (838), 220 states have call predecessors, (838), 240 states have return successors, (942), 821 states have call predecessors, (942), 823 states have call successors, (942) [2021-12-28 03:52:53,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 4981 transitions. [2021-12-28 03:52:53,841 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 4981 transitions. Word has length 33 [2021-12-28 03:52:53,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:52:53,841 INFO L470 AbstractCegarLoop]: Abstraction has 3548 states and 4981 transitions. [2021-12-28 03:52:53,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:52:53,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 4981 transitions. [2021-12-28 03:52:53,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-28 03:52:53,843 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:52:53,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:52:53,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:52:53,844 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:52:53,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:52:53,844 INFO L85 PathProgramCache]: Analyzing trace with hash -35239011, now seen corresponding path program 1 times [2021-12-28 03:52:53,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:52:53,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576389609] [2021-12-28 03:52:53,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:52:53,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:52:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:52:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:54,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:52:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 03:52:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:54,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 03:52:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:54,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:52:54,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:52:54,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576389609] [2021-12-28 03:52:54,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576389609] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:52:54,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:52:54,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:52:54,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654521872] [2021-12-28 03:52:54,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:52:54,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:52:54,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:52:54,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:52:54,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:52:54,095 INFO L87 Difference]: Start difference. First operand 3548 states and 4981 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:52:58,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:52:58,961 INFO L93 Difference]: Finished difference Result 4151 states and 5958 transitions. [2021-12-28 03:52:58,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:52:58,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2021-12-28 03:52:58,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:52:58,989 INFO L225 Difference]: With dead ends: 4151 [2021-12-28 03:52:58,990 INFO L226 Difference]: Without dead ends: 4148 [2021-12-28 03:52:58,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-28 03:52:58,994 INFO L933 BasicCegarLoop]: 2110 mSDtfsCounter, 3971 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 2444 mSolverCounterSat, 2114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4206 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 4558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2114 IncrementalHoareTripleChecker+Valid, 2444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-28 03:52:58,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4206 Valid, 3022 Invalid, 4558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2114 Valid, 2444 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-28 03:52:59,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2021-12-28 03:52:59,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3547. [2021-12-28 03:52:59,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 2469 states have (on average 1.2960712839206157) internal successors, (3200), 2524 states have internal predecessors, (3200), 837 states have call successors, (837), 220 states have call predecessors, (837), 240 states have return successors, (942), 821 states have call predecessors, (942), 823 states have call successors, (942) [2021-12-28 03:52:59,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4979 transitions. [2021-12-28 03:52:59,196 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4979 transitions. Word has length 34 [2021-12-28 03:52:59,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:52:59,196 INFO L470 AbstractCegarLoop]: Abstraction has 3547 states and 4979 transitions. [2021-12-28 03:52:59,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:52:59,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4979 transitions. [2021-12-28 03:52:59,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-28 03:52:59,200 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:52:59,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:52:59,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:52:59,201 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:52:59,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:52:59,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1094313401, now seen corresponding path program 1 times [2021-12-28 03:52:59,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:52:59,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243744583] [2021-12-28 03:52:59,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:52:59,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:52:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:59,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:52:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:59,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:52:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:59,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 03:52:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 03:52:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:59,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:52:59,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:52:59,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243744583] [2021-12-28 03:52:59,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243744583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:52:59,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:52:59,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:52:59,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415939843] [2021-12-28 03:52:59,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:52:59,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:52:59,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:52:59,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:52:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:52:59,445 INFO L87 Difference]: Start difference. First operand 3547 states and 4979 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:53:04,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:53:04,571 INFO L93 Difference]: Finished difference Result 4288 states and 6099 transitions. [2021-12-28 03:53:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:53:04,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2021-12-28 03:53:04,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:53:04,596 INFO L225 Difference]: With dead ends: 4288 [2021-12-28 03:53:04,596 INFO L226 Difference]: Without dead ends: 4269 [2021-12-28 03:53:04,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-28 03:53:04,601 INFO L933 BasicCegarLoop]: 2170 mSDtfsCounter, 3872 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 2649 mSolverCounterSat, 2081 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4080 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 4730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2081 IncrementalHoareTripleChecker+Valid, 2649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-28 03:53:04,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4080 Valid, 3157 Invalid, 4730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2081 Valid, 2649 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-28 03:53:04,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4269 states. [2021-12-28 03:53:04,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4269 to 3660. [2021-12-28 03:53:04,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3660 states, 2557 states have (on average 1.2901838091513493) internal successors, (3299), 2609 states have internal predecessors, (3299), 840 states have call successors, (840), 242 states have call predecessors, (840), 262 states have return successors, (948), 827 states have call predecessors, (948), 829 states have call successors, (948) [2021-12-28 03:53:04,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 5087 transitions. [2021-12-28 03:53:04,783 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 5087 transitions. Word has length 35 [2021-12-28 03:53:04,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:53:04,784 INFO L470 AbstractCegarLoop]: Abstraction has 3660 states and 5087 transitions. [2021-12-28 03:53:04,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:53:04,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 5087 transitions. [2021-12-28 03:53:04,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-28 03:53:04,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:04,789 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:04,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 03:53:04,789 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:04,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:04,790 INFO L85 PathProgramCache]: Analyzing trace with hash 515000665, now seen corresponding path program 1 times [2021-12-28 03:53:04,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:04,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551280547] [2021-12-28 03:53:04,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:04,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:04,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:04,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:53:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:04,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 03:53:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:04,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 03:53:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:05,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:53:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:05,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 03:53:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:05,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-28 03:53:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-28 03:53:05,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:05,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551280547] [2021-12-28 03:53:05,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551280547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:05,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:05,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 03:53:05,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450896989] [2021-12-28 03:53:05,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:05,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 03:53:05,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:05,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 03:53:05,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:53:05,039 INFO L87 Difference]: Start difference. First operand 3660 states and 5087 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 03:53:12,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:53:12,568 INFO L93 Difference]: Finished difference Result 8494 states and 12125 transitions. [2021-12-28 03:53:12,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:53:12,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2021-12-28 03:53:12,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:53:12,600 INFO L225 Difference]: With dead ends: 8494 [2021-12-28 03:53:12,600 INFO L226 Difference]: Without dead ends: 4992 [2021-12-28 03:53:12,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-28 03:53:12,622 INFO L933 BasicCegarLoop]: 2297 mSDtfsCounter, 3254 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 6045 mSolverCounterSat, 2428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3479 SdHoareTripleChecker+Valid, 5571 SdHoareTripleChecker+Invalid, 8473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2428 IncrementalHoareTripleChecker+Valid, 6045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-12-28 03:53:12,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3479 Valid, 5571 Invalid, 8473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2428 Valid, 6045 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2021-12-28 03:53:12,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4992 states. [2021-12-28 03:53:12,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4992 to 4284. [2021-12-28 03:53:12,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4284 states, 3032 states have (on average 1.3007915567282322) internal successors, (3944), 3075 states have internal predecessors, (3944), 975 states have call successors, (975), 242 states have call predecessors, (975), 276 states have return successors, (1133), 985 states have call predecessors, (1133), 964 states have call successors, (1133) [2021-12-28 03:53:12,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 6052 transitions. [2021-12-28 03:53:12,832 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 6052 transitions. Word has length 58 [2021-12-28 03:53:12,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:53:12,833 INFO L470 AbstractCegarLoop]: Abstraction has 4284 states and 6052 transitions. [2021-12-28 03:53:12,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 03:53:12,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 6052 transitions. [2021-12-28 03:53:12,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-28 03:53:12,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:12,838 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:12,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 03:53:12,838 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:12,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:12,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1001937349, now seen corresponding path program 1 times [2021-12-28 03:53:12,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:12,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322352277] [2021-12-28 03:53:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:12,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:13,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:13,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:53:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:13,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 03:53:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:13,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 03:53:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:13,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 03:53:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:53:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:13,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 03:53:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:13,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 03:53:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-28 03:53:13,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:13,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322352277] [2021-12-28 03:53:13,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322352277] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:13,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:13,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:53:13,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628209990] [2021-12-28 03:53:13,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:13,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:53:13,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:13,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:53:13,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:53:13,131 INFO L87 Difference]: Start difference. First operand 4284 states and 6052 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)