./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 e19ca921 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-e19ca92 [2021-12-22 14:34:11,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:34:11,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:34:11,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:34:11,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:34:11,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:34:11,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:34:11,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:34:11,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:34:11,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:34:11,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:34:11,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:34:11,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:34:11,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:34:11,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:34:11,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:34:11,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:34:11,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:34:11,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:34:11,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:34:11,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:34:11,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:34:11,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:34:11,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:34:11,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:34:11,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:34:11,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:34:11,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:34:11,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:34:11,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:34:11,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:34:11,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:34:11,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:34:11,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:34:11,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:34:11,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:34:11,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:34:11,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:34:11,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:34:11,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:34:11,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:34:11,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:34:11,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:34:11,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:34:11,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:34:11,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:34:11,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:34:11,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:34:11,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:34:11,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:34:11,151 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:34:11,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:34:11,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:34:11,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:34:11,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:34:11,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:34:11,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:34:11,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:34:11,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:34:11,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:34:11,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:34:11,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:34:11,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:34:11,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:34:11,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:34:11,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:34:11,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:34:11,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:34:11,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:34:11,155 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:34:11,156 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:34:11,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:34:11,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:34:11,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac653d5d4bd645822c87d49861fb2a5e304e57a9bdc7e425845f1dc10a0731d2 [2021-12-22 14:34:11,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:34:11,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:34:11,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:34:11,416 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:34:11,416 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:34:11,418 INFO L432 ainManager$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 [2021-12-22 14:34:11,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c200b35da/709b404df4d046eb8349553bf80c678b/FLAGb26443823 [2021-12-22 14:34:12,126 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:34:12,126 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 [2021-12-22 14:34:12,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c200b35da/709b404df4d046eb8349553bf80c678b/FLAGb26443823 [2021-12-22 14:34:12,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c200b35da/709b404df4d046eb8349553bf80c678b [2021-12-22 14:34:12,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:34:12,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:34:12,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:34:12,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:34:12,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:34:12,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:34:12" (1/1) ... [2021-12-22 14:34:12,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b7f275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:12, skipping insertion in model container [2021-12-22 14:34:12,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:34:12" (1/1) ... [2021-12-22 14:34:12,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:34:12,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:34:13,941 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] [2021-12-22 14:34:14,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:34:14,087 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:34:14,425 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] [2021-12-22 14:34:14,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:34:14,550 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:34:14,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14 WrapperNode [2021-12-22 14:34:14,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:34:14,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:34:14,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:34:14,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:34:14,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (1/1) ... [2021-12-22 14:34:14,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (1/1) ... [2021-12-22 14:34:14,872 INFO L137 Inliner]: procedures = 373, calls = 2971, calls flagged for inlining = 172, calls inlined = 164, statements flattened = 5915 [2021-12-22 14:34:14,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:34:14,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:34:14,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:34:14,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:34:14,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (1/1) ... [2021-12-22 14:34:14,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (1/1) ... [2021-12-22 14:34:14,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (1/1) ... [2021-12-22 14:34:14,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (1/1) ... [2021-12-22 14:34:15,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (1/1) ... [2021-12-22 14:34:15,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (1/1) ... [2021-12-22 14:34:15,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (1/1) ... [2021-12-22 14:34:15,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:34:15,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:34:15,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:34:15,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:34:15,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (1/1) ... [2021-12-22 14:34:15,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:34:15,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:34:15,217 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) [2021-12-22 14:34:15,239 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 [2021-12-22 14:34:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-22 14:34:15,256 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-22 14:34:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-22 14:34:15,256 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-22 14:34:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-22 14:34:15,257 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-22 14:34:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-22 14:34:15,257 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-22 14:34:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-22 14:34:15,257 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-22 14:34:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-22 14:34:15,258 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-22 14:34:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-22 14:34:15,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-22 14:34:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-22 14:34:15,258 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-22 14:34:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-22 14:34:15,258 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-22 14:34:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-22 14:34:15,259 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-22 14:34:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-22 14:34:15,259 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-22 14:34:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-22 14:34:15,259 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-22 14:34:15,260 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-22 14:34:15,260 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-22 14:34:15,260 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-22 14:34:15,260 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-22 14:34:15,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:34:15,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:34:15,261 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-22 14:34:15,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-22 14:34:15,261 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-22 14:34:15,261 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-22 14:34:15,261 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-22 14:34:15,261 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-22 14:34:15,261 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-22 14:34:15,262 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-22 14:34:15,262 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:34:15,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:34:15,262 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-22 14:34:15,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-22 14:34:15,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:34:15,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:34:15,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-22 14:34:15,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-22 14:34:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-22 14:34:15,264 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-22 14:34:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-22 14:34:15,264 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-22 14:34:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-22 14:34:15,265 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-22 14:34:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-22 14:34:15,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-22 14:34:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 14:34:15,266 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 14:34:15,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_get_by_index [2021-12-22 14:34:15,267 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_get_by_index [2021-12-22 14:34:15,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-22 14:34:15,268 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-22 14:34:15,268 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-22 14:34:15,269 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-22 14:34:15,269 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-22 14:34:15,269 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-22 14:34:15,269 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-22 14:34:15,269 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-22 14:34:15,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2021-12-22 14:34:15,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2021-12-22 14:34:15,270 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 14:34:15,270 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 14:34:15,270 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-22 14:34:15,270 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-22 14:34:15,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-22 14:34:15,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-22 14:34:15,271 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:34:15,271 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:34:15,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:34:15,272 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:34:15,272 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:34:15,272 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-22 14:34:15,272 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-22 14:34:15,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-22 14:34:15,272 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-22 14:34:15,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-22 14:34:15,273 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-22 14:34:15,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-22 14:34:15,273 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-22 14:34:15,273 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-22 14:34:15,273 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-22 14:34:15,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-12-22 14:34:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-12-22 14:34:15,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:34:15,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:34:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:34:15,275 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-22 14:34:15,275 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-22 14:34:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-22 14:34:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-22 14:34:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-22 14:34:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:34:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:34:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-22 14:34:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-22 14:34:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:34:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:34:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-12-22 14:34:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-12-22 14:34:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:34:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:34:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 14:34:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 14:34:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-12-22 14:34:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-12-22 14:34:15,279 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-22 14:34:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-22 14:34:15,280 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:34:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:34:15,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-22 14:34:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-22 14:34:15,281 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-22 14:34:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-22 14:34:15,282 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:34:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:34:15,282 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:34:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:34:15,282 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-22 14:34:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-22 14:34:15,282 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-22 14:34:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-22 14:34:15,282 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:34:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:34:15,282 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-22 14:34:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-22 14:34:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-22 14:34:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-22 14:34:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-22 14:34:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-22 14:34:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-22 14:34:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-22 14:34:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:34:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:34:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-22 14:34:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-22 14:34:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-22 14:34:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-22 14:34:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-22 14:34:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-22 14:34:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-22 14:34:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-22 14:34:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-22 14:34:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-22 14:34:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-22 14:34:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-22 14:34:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:34:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-22 14:34:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-22 14:34:15,285 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-22 14:34:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-22 14:34:15,285 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 14:34:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 14:34:15,285 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-22 14:34:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-22 14:34:15,285 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-22 14:34:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-22 14:34:15,285 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:34:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:34:15,285 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 14:34:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 14:34:15,285 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-22 14:34:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-22 14:34:15,286 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-22 14:34:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-22 14:34:15,286 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:34:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:34:15,286 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-22 14:34:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-22 14:34:15,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:34:15,286 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-22 14:34:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-22 14:34:15,286 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-22 14:34:15,286 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-22 14:34:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-22 14:34:15,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:34:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:34:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-22 14:34:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-22 14:34:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-22 14:34:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-22 14:34:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2021-12-22 14:34:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2021-12-22 14:34:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:34:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-22 14:34:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-22 14:34:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:34:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:34:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:34:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:34:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:34:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 14:34:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 14:34:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-22 14:34:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-22 14:34:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2021-12-22 14:34:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2021-12-22 14:34:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 14:34:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 14:34:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-22 14:34:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-22 14:34:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2021-12-22 14:34:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2021-12-22 14:34:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-22 14:34:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-22 14:34:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-22 14:34:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-22 14:34:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-22 14:34:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-22 14:34:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 14:34:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 14:34:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-22 14:34:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-22 14:34:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 14:34:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 14:34:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-22 14:34:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-22 14:34:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:34:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:34:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-22 14:34:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-22 14:34:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:34:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:34:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:34:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 14:34:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 14:34:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:34:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:34:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-22 14:34:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-22 14:34:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-22 14:34:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-22 14:34:16,043 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:34:16,047 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:34:23,717 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:34:23,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:34:23,741 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:34:23,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:34:23 BoogieIcfgContainer [2021-12-22 14:34:23,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:34:23,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:34:23,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:34:23,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:34:23,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:34:12" (1/3) ... [2021-12-22 14:34:23,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c6e888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:34:23, skipping insertion in model container [2021-12-22 14:34:23,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:34:14" (2/3) ... [2021-12-22 14:34:23,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c6e888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:34:23, skipping insertion in model container [2021-12-22 14:34:23,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:34:23" (3/3) ... [2021-12-22 14:34:23,759 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2021-12-22 14:34:23,766 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:34:23,772 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:34:23,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:34:23,822 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 [2021-12-22 14:34:23,822 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:34:23,886 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) [2021-12-22 14:34:23,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-22 14:34:23,893 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:34:23,893 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] [2021-12-22 14:34:23,894 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:34:23,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:34:23,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1524047706, now seen corresponding path program 1 times [2021-12-22 14:34:23,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:34:23,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573177220] [2021-12-22 14:34:23,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:34:23,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:34:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:24,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:34:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:24,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:34:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:24,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 14:34:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:24,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:34:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:24,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:34:24,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:34:24,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573177220] [2021-12-22 14:34:24,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573177220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:34:24,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:34:24,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:34:24,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779507464] [2021-12-22 14:34:24,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:34:24,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:34:24,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:34:24,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:34:24,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:34:24,620 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) [2021-12-22 14:34:35,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:34:35,499 INFO L93 Difference]: Finished difference Result 5926 states and 8748 transitions. [2021-12-22 14:34:35,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:34:35,505 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 [2021-12-22 14:34:35,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:34:35,563 INFO L225 Difference]: With dead ends: 5926 [2021-12-22 14:34:35,563 INFO L226 Difference]: Without dead ends: 4084 [2021-12-22 14:34:35,583 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 [2021-12-22 14:34:35,595 INFO L933 BasicCegarLoop]: 2519 mSDtfsCounter, 5449 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 5030 mSolverCounterSat, 3195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5765 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 8225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3195 IncrementalHoareTripleChecker+Valid, 5030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:34:35,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5765 Valid, 4276 Invalid, 8225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3195 Valid, 5030 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2021-12-22 14:34:35,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4084 states. [2021-12-22 14:34:35,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4084 to 3549. [2021-12-22 14:34:35,864 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) [2021-12-22 14:34:35,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4983 transitions. [2021-12-22 14:34:35,905 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4983 transitions. Word has length 32 [2021-12-22 14:34:35,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:34:35,906 INFO L470 AbstractCegarLoop]: Abstraction has 3549 states and 4983 transitions. [2021-12-22 14:34:35,907 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) [2021-12-22 14:34:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4983 transitions. [2021-12-22 14:34:35,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-22 14:34:35,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:34:35,911 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] [2021-12-22 14:34:35,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:34:35,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:34:35,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:34:35,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1075164, now seen corresponding path program 1 times [2021-12-22 14:34:35,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:34:35,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317494911] [2021-12-22 14:34:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:34:35,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:34:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:36,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:34:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:36,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:34:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 14:34:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:36,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:34:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:36,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:34:36,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:34:36,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317494911] [2021-12-22 14:34:36,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317494911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:34:36,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:34:36,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:34:36,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176066304] [2021-12-22 14:34:36,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:34:36,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:34:36,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:34:36,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:34:36,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:34:36,217 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) [2021-12-22 14:34:42,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:34:42,078 INFO L93 Difference]: Finished difference Result 4152 states and 5960 transitions. [2021-12-22 14:34:42,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:34:42,084 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 [2021-12-22 14:34:42,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:34:42,116 INFO L225 Difference]: With dead ends: 4152 [2021-12-22 14:34:42,116 INFO L226 Difference]: Without dead ends: 4149 [2021-12-22 14:34:42,121 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 [2021-12-22 14:34:42,123 INFO L933 BasicCegarLoop]: 2110 mSDtfsCounter, 3976 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 2119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4212 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 4550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2119 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:34:42,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4212 Valid, 3022 Invalid, 4550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2119 Valid, 2431 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-22 14:34:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2021-12-22 14:34:42,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 3548. [2021-12-22 14:34:42,305 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) [2021-12-22 14:34:42,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 4981 transitions. [2021-12-22 14:34:42,335 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 4981 transitions. Word has length 33 [2021-12-22 14:34:42,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:34:42,336 INFO L470 AbstractCegarLoop]: Abstraction has 3548 states and 4981 transitions. [2021-12-22 14:34:42,336 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) [2021-12-22 14:34:42,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 4981 transitions. [2021-12-22 14:34:42,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-22 14:34:42,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:34:42,338 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] [2021-12-22 14:34:42,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:34:42,338 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:34:42,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:34:42,339 INFO L85 PathProgramCache]: Analyzing trace with hash -35239011, now seen corresponding path program 1 times [2021-12-22 14:34:42,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:34:42,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949940200] [2021-12-22 14:34:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:34:42,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:34:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:34:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:34:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 14:34:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:42,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:34:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:34:42,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:34:42,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949940200] [2021-12-22 14:34:42,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949940200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:34:42,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:34:42,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:34:42,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200179733] [2021-12-22 14:34:42,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:34:42,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:34:42,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:34:42,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:34:42,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:34:42,573 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) [2021-12-22 14:34:47,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:34:47,626 INFO L93 Difference]: Finished difference Result 4151 states and 5958 transitions. [2021-12-22 14:34:47,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:34:47,627 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 [2021-12-22 14:34:47,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:34:47,653 INFO L225 Difference]: With dead ends: 4151 [2021-12-22 14:34:47,654 INFO L226 Difference]: Without dead ends: 4148 [2021-12-22 14:34:47,657 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 [2021-12-22 14:34:47,658 INFO L933 BasicCegarLoop]: 2110 mSDtfsCounter, 3965 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 2113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4188 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 4578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2113 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:34:47,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4188 Valid, 3022 Invalid, 4578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2113 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-22 14:34:47,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2021-12-22 14:34:47,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3547. [2021-12-22 14:34:47,809 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) [2021-12-22 14:34:47,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4979 transitions. [2021-12-22 14:34:47,825 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4979 transitions. Word has length 34 [2021-12-22 14:34:47,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:34:47,826 INFO L470 AbstractCegarLoop]: Abstraction has 3547 states and 4979 transitions. [2021-12-22 14:34:47,826 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) [2021-12-22 14:34:47,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4979 transitions. [2021-12-22 14:34:47,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-22 14:34:47,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:34:47,827 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] [2021-12-22 14:34:47,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:34:47,828 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:34:47,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:34:47,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1094313401, now seen corresponding path program 1 times [2021-12-22 14:34:47,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:34:47,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418941743] [2021-12-22 14:34:47,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:34:47,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:34:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:48,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:34:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:48,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:34:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:48,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 14:34:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:48,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:34:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:48,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:34:48,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:34:48,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418941743] [2021-12-22 14:34:48,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418941743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:34:48,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:34:48,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:34:48,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281731047] [2021-12-22 14:34:48,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:34:48,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:34:48,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:34:48,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:34:48,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:34:48,082 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) [2021-12-22 14:34:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:34:52,856 INFO L93 Difference]: Finished difference Result 4288 states and 6099 transitions. [2021-12-22 14:34:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:34:52,856 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 [2021-12-22 14:34:52,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:34:52,881 INFO L225 Difference]: With dead ends: 4288 [2021-12-22 14:34:52,881 INFO L226 Difference]: Without dead ends: 4269 [2021-12-22 14:34:52,886 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 [2021-12-22 14:34:52,891 INFO L933 BasicCegarLoop]: 2170 mSDtfsCounter, 3878 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 2093 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4087 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 4702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2093 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:34:52,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4087 Valid, 3182 Invalid, 4702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2093 Valid, 2609 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-22 14:34:52,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4269 states. [2021-12-22 14:34:53,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4269 to 3660. [2021-12-22 14:34:53,112 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) [2021-12-22 14:34:53,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 5087 transitions. [2021-12-22 14:34:53,131 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 5087 transitions. Word has length 35 [2021-12-22 14:34:53,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:34:53,133 INFO L470 AbstractCegarLoop]: Abstraction has 3660 states and 5087 transitions. [2021-12-22 14:34:53,134 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) [2021-12-22 14:34:53,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 5087 transitions. [2021-12-22 14:34:53,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-22 14:34:53,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:34:53,144 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] [2021-12-22 14:34:53,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:34:53,144 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:34:53,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:34:53,145 INFO L85 PathProgramCache]: Analyzing trace with hash 515000665, now seen corresponding path program 1 times [2021-12-22 14:34:53,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:34:53,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119752597] [2021-12-22 14:34:53,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:34:53,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:34:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:53,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:34:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:53,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:34:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:53,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 14:34:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:34:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:53,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 14:34:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:53,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 14:34:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:53,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-22 14:34:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:34:53,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-22 14:34:53,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:34:53,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119752597] [2021-12-22 14:34:53,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119752597] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:34:53,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:34:53,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:34:53,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244361099] [2021-12-22 14:34:53,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:34:53,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:34:53,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:34:53,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:34:53,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:34:53,357 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) [2021-12-22 14:34:59,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:34:59,940 INFO L93 Difference]: Finished difference Result 8494 states and 12125 transitions. [2021-12-22 14:34:59,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:34:59,943 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 [2021-12-22 14:34:59,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:34:59,970 INFO L225 Difference]: With dead ends: 8494 [2021-12-22 14:34:59,970 INFO L226 Difference]: Without dead ends: 4992 [2021-12-22 14:34:59,986 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 [2021-12-22 14:34:59,987 INFO L933 BasicCegarLoop]: 2301 mSDtfsCounter, 3252 mSDsluCounter, 4208 mSDsCounter, 0 mSdLazyCounter, 5103 mSolverCounterSat, 2428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3482 SdHoareTripleChecker+Valid, 6509 SdHoareTripleChecker+Invalid, 7531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2428 IncrementalHoareTripleChecker+Valid, 5103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:34:59,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3482 Valid, 6509 Invalid, 7531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2428 Valid, 5103 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2021-12-22 14:34:59,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4992 states. [2021-12-22 14:35:00,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4992 to 4284. [2021-12-22 14:35:00,170 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) [2021-12-22 14:35:00,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 6052 transitions. [2021-12-22 14:35:00,190 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 6052 transitions. Word has length 58 [2021-12-22 14:35:00,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:35:00,190 INFO L470 AbstractCegarLoop]: Abstraction has 4284 states and 6052 transitions. [2021-12-22 14:35:00,191 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) [2021-12-22 14:35:00,191 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 6052 transitions. [2021-12-22 14:35:00,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-22 14:35:00,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:35:00,195 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] [2021-12-22 14:35:00,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:35:00,195 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:35:00,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:35:00,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1001937349, now seen corresponding path program 1 times [2021-12-22 14:35:00,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:35:00,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952702279] [2021-12-22 14:35:00,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:35:00,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:35:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:00,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:35:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:35:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:00,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 14:35:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:35:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:00,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 14:35:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:00,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:35:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:35:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:00,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:35:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:35:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-22 14:35:00,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:35:00,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952702279] [2021-12-22 14:35:00,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952702279] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:35:00,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:35:00,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:35:00,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321841229] [2021-12-22 14:35:00,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:35:00,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:35:00,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:35:00,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:35:00,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:35:00,445 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)