/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:12:54,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:12:54,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:12:54,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:12:54,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:12:54,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:12:54,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:12:54,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:12:54,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:12:54,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:12:54,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:12:54,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:12:54,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:12:54,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:12:54,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:12:54,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:12:54,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:12:54,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:12:54,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:12:54,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:12:54,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:12:54,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:12:54,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:12:54,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:12:54,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:12:54,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:12:54,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:12:54,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:12:54,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:12:54,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:12:54,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:12:54,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:12:54,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:12:54,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:12:54,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:12:54,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:12:54,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:12:54,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:12:54,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:12:54,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:12:54,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:12:54,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:12:54,331 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:12:54,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:12:54,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:12:54,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:12:54,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:12:54,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:12:54,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:12:54,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:12:54,338 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:12:54,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:12:54,340 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:12:54,340 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:12:54,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:12:54,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:12:54,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:12:54,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:12:54,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:12:54,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:12:54,342 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:12:54,342 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:12:54,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:12:54,342 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:12:54,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:12:54,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:12:54,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:12:54,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:12:54,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:12:54,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:12:54,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:12:54,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:12:54,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:12:54,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:12:54,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:12:54,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:12:54,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:12:54,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:12:54,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:12:54,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:12:54,797 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:12:54,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-10-15 21:12:54,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83bcb2c65/6dd5de1f12d54b5187cee6c94c936985/FLAGc9d5f04f8 [2022-10-15 21:12:56,082 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:12:56,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-10-15 21:12:56,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83bcb2c65/6dd5de1f12d54b5187cee6c94c936985/FLAGc9d5f04f8 [2022-10-15 21:12:56,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83bcb2c65/6dd5de1f12d54b5187cee6c94c936985 [2022-10-15 21:12:56,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:12:56,468 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:12:56,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:12:56,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:12:56,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:12:56,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:12:56" (1/1) ... [2022-10-15 21:12:56,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b6537e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:56, skipping insertion in model container [2022-10-15 21:12:56,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:12:56" (1/1) ... [2022-10-15 21:12:56,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:12:56,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:12:58,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-10-15 21:12:58,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:12:58,747 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:12:59,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-10-15 21:12:59,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:12:59,522 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:12:59,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59 WrapperNode [2022-10-15 21:12:59,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:12:59,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:12:59,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:12:59,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:12:59,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,780 INFO L138 Inliner]: procedures = 163, calls = 1186, calls flagged for inlining = 76, calls inlined = 76, statements flattened = 3123 [2022-10-15 21:12:59,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:12:59,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:12:59,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:12:59,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:12:59,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:13:00,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:13:00,052 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:13:00,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:13:00,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:13:00,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:13:00,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:13:00,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:13:00,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:13:00,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:00,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:00,167 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) [2022-10-15 21:13:00,195 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 [2022-10-15 21:13:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-15 21:13:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-15 21:13:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unregister_dev [2022-10-15 21:13:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unregister_dev [2022-10-15 21:13:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2022-10-15 21:13:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2022-10-15 21:13:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-10-15 21:13:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-10-15 21:13:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:13:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-10-15 21:13:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-10-15 21:13:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:13:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:13:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-10-15 21:13:00,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-10-15 21:13:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:13:00,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:13:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:13:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-15 21:13:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-15 21:13:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-10-15 21:13:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-10-15 21:13:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-15 21:13:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-15 21:13:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:13:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:13:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2022-10-15 21:13:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2022-10-15 21:13:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:13:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:13:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:13:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:13:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-15 21:13:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-15 21:13:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-15 21:13:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-15 21:13:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2022-10-15 21:13:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2022-10-15 21:13:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2022-10-15 21:13:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2022-10-15 21:13:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:13:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:13:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:13:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:13:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:13:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_rx_complete [2022-10-15 21:13:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_rx_complete [2022-10-15 21:13:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-10-15 21:13:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-10-15 21:13:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-10-15 21:13:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-10-15 21:13:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:13:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:13:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-15 21:13:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-15 21:13:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:13:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:13:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:13:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:13:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:13:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-15 21:13:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-15 21:13:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-10-15 21:13:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-10-15 21:13:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:13:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-15 21:13:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-15 21:13:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-15 21:13:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-15 21:13:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:13:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:13:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:13:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:13:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2022-10-15 21:13:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2022-10-15 21:13:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2022-10-15 21:13:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2022-10-15 21:13:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:13:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-10-15 21:13:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-10-15 21:13:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-10-15 21:13:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-10-15 21:13:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:13:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:13:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_10 [2022-10-15 21:13:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_10 [2022-10-15 21:13:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:13:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:13:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-15 21:13:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-15 21:13:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:13:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2022-10-15 21:13:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2022-10-15 21:13:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-10-15 21:13:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-10-15 21:13:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-15 21:13:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-15 21:13:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:13:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-10-15 21:13:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:13:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:13:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:13:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:13:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-10-15 21:13:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-10-15 21:13:00,843 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:13:00,846 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:13:01,386 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:13:02,297 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-15 21:13:06,444 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:13:06,461 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:13:06,462 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 21:13:06,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:06 BoogieIcfgContainer [2022-10-15 21:13:06,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:13:06,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:13:06,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:13:06,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:13:06,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:12:56" (1/3) ... [2022-10-15 21:13:06,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528a5f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:06, skipping insertion in model container [2022-10-15 21:13:06,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (2/3) ... [2022-10-15 21:13:06,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528a5f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:06, skipping insertion in model container [2022-10-15 21:13:06,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:06" (3/3) ... [2022-10-15 21:13:06,477 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-10-15 21:13:06,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:13:06,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2022-10-15 21:13:06,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:13:06,608 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@663b3131, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:13:06,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-10-15 21:13:06,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 939 states, 670 states have (on average 1.4298507462686567) internal successors, (958), 741 states have internal predecessors, (958), 180 states have call successors, (180), 44 states have call predecessors, (180), 42 states have return successors, (174), 166 states have call predecessors, (174), 174 states have call successors, (174) [2022-10-15 21:13:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-15 21:13:06,639 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:06,640 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:06,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2022-10-15 21:13:06,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:06,648 INFO L85 PathProgramCache]: Analyzing trace with hash 2067218169, now seen corresponding path program 1 times [2022-10-15 21:13:06,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:06,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968500836] [2022-10-15 21:13:06,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:06,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:07,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:07,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:07,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:13:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:07,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 21:13:07,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:07,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968500836] [2022-10-15 21:13:07,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968500836] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:07,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:07,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:07,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758015275] [2022-10-15 21:13:07,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:07,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:07,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:07,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:07,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:07,623 INFO L87 Difference]: Start difference. First operand has 939 states, 670 states have (on average 1.4298507462686567) internal successors, (958), 741 states have internal predecessors, (958), 180 states have call successors, (180), 44 states have call predecessors, (180), 42 states have return successors, (174), 166 states have call predecessors, (174), 174 states have call successors, (174) Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:13:10,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:12,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:17,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:17,913 INFO L93 Difference]: Finished difference Result 3004 states and 4373 transitions. [2022-10-15 21:13:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:13:17,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45 [2022-10-15 21:13:17,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:17,967 INFO L225 Difference]: With dead ends: 3004 [2022-10-15 21:13:17,974 INFO L226 Difference]: Without dead ends: 2028 [2022-10-15 21:13:17,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:18,001 INFO L413 NwaCegarLoop]: 1400 mSDtfsCounter, 2027 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 1010 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 3668 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1010 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:18,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2176 Valid, 3668 Invalid, 2567 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1010 Valid, 1555 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2022-10-15 21:13:18,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-10-15 21:13:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1716. [2022-10-15 21:13:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1261 states have (on average 1.421887390959556) internal successors, (1793), 1335 states have internal predecessors, (1793), 327 states have call successors, (327), 82 states have call predecessors, (327), 82 states have return successors, (326), 310 states have call predecessors, (326), 326 states have call successors, (326) [2022-10-15 21:13:18,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2446 transitions. [2022-10-15 21:13:18,300 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2446 transitions. Word has length 45 [2022-10-15 21:13:18,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:18,301 INFO L495 AbstractCegarLoop]: Abstraction has 1716 states and 2446 transitions. [2022-10-15 21:13:18,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:13:18,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2446 transitions. [2022-10-15 21:13:18,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-15 21:13:18,307 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:18,307 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:18,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:13:18,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2022-10-15 21:13:18,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:18,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1070180879, now seen corresponding path program 1 times [2022-10-15 21:13:18,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:18,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231333542] [2022-10-15 21:13:18,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:18,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:18,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:18,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:18,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:13:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:18,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:13:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:18,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 21:13:18,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:18,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231333542] [2022-10-15 21:13:18,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231333542] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:18,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:18,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:13:18,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343157324] [2022-10-15 21:13:18,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:18,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:18,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:18,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:18,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:18,760 INFO L87 Difference]: Start difference. First operand 1716 states and 2446 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:13:21,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:23,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:25,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:34,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:34,702 INFO L93 Difference]: Finished difference Result 5275 states and 7647 transitions. [2022-10-15 21:13:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:13:34,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2022-10-15 21:13:34,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:34,735 INFO L225 Difference]: With dead ends: 5275 [2022-10-15 21:13:34,735 INFO L226 Difference]: Without dead ends: 3570 [2022-10-15 21:13:34,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:13:34,746 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1388 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 501 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 4859 SdHoareTripleChecker+Invalid, 2911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:34,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 4859 Invalid, 2911 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [501 Valid, 2407 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2022-10-15 21:13:34,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3570 states. [2022-10-15 21:13:35,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 2912. [2022-10-15 21:13:35,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2912 states, 2162 states have (on average 1.4144310823311748) internal successors, (3058), 2260 states have internal predecessors, (3058), 553 states have call successors, (553), 151 states have call predecessors, (553), 151 states have return successors, (551), 518 states have call predecessors, (551), 551 states have call successors, (551) [2022-10-15 21:13:35,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2912 states to 2912 states and 4162 transitions. [2022-10-15 21:13:35,076 INFO L78 Accepts]: Start accepts. Automaton has 2912 states and 4162 transitions. Word has length 50 [2022-10-15 21:13:35,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:35,077 INFO L495 AbstractCegarLoop]: Abstraction has 2912 states and 4162 transitions. [2022-10-15 21:13:35,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:13:35,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2912 states and 4162 transitions. [2022-10-15 21:13:35,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 21:13:35,085 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:35,085 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:35,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:13:35,086 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2022-10-15 21:13:35,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:35,087 INFO L85 PathProgramCache]: Analyzing trace with hash -549607408, now seen corresponding path program 1 times [2022-10-15 21:13:35,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:35,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062776975] [2022-10-15 21:13:35,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:35,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:35,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:35,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:35,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:13:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:35,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:35,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 21:13:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 21:13:35,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:35,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062776975] [2022-10-15 21:13:35,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062776975] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:35,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:35,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:35,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806423997] [2022-10-15 21:13:35,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:35,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:35,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:35,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:35,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:35,482 INFO L87 Difference]: Start difference. First operand 2912 states and 4162 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:13:37,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:39,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:42,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:44,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []