/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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:15:56,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:15:56,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:15:56,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:15:56,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:15:56,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:15:56,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:15:56,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:15:56,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:15:56,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:15:56,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:15:56,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:15:56,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:15:56,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:15:56,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:15:56,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:15:56,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:15:56,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:15:56,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:15:56,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:15:56,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:15:56,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:15:56,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:15:56,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:15:56,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:15:56,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:15:56,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:15:56,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:15:56,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:15:56,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:15:56,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:15:56,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:15:56,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:15:56,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:15:56,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:15:56,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:15:56,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:15:56,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:15:56,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:15:56,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:15:56,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:15:56,627 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 21:15:56,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:15:56,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:15:56,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:15:56,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:15:56,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:15:56,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:15:56,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:15:56,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:15:56,674 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:15:56,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:15:56,674 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:15:56,675 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:15:56,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:15:56,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:15:56,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:15:56,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:15:56,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:15:56,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:15:56,676 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:15:56,676 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:15:56,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:15:56,676 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:15:56,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:15:56,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:15:56,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:15:56,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:15:56,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:15:56,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:15:56,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:15:56,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:15:56,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:15:56,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:15:56,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:15:56,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:15:57,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:15:57,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:15:57,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:15:57,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:15:57,129 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:15:57,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-10-15 21:15:57,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e03e97a3/3d09298079fc4225aa165f9f43cf7614/FLAG28b72f204 [2022-10-15 21:15:58,275 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:15:58,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-10-15 21:15:58,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e03e97a3/3d09298079fc4225aa165f9f43cf7614/FLAG28b72f204 [2022-10-15 21:15:58,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e03e97a3/3d09298079fc4225aa165f9f43cf7614 [2022-10-15 21:15:58,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:15:58,699 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:15:58,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:15:58,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:15:58,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:15:58,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:15:58" (1/1) ... [2022-10-15 21:15:58,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2200a22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:58, skipping insertion in model container [2022-10-15 21:15:58,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:15:58" (1/1) ... [2022-10-15 21:15:58,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:15:58,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:15:59,866 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2022-10-15 21:16:00,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:16:00,589 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:16:00,864 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2022-10-15 21:16:01,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:16:01,221 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:16:01,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01 WrapperNode [2022-10-15 21:16:01,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:16:01,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:16:01,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:16:01,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:16:01,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,413 INFO L138 Inliner]: procedures = 157, calls = 1181, calls flagged for inlining = 63, calls inlined = 51, statements flattened = 2369 [2022-10-15 21:16:01,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:16:01,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:16:01,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:16:01,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:16:01,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:16:01,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:16:01,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:16:01,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:16:01,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (1/1) ... [2022-10-15 21:16:01,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:16:01,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:16:01,723 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 21:16:01,734 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 21:16:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-15 21:16:01,790 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-15 21:16:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2022-10-15 21:16:01,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2022-10-15 21:16:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:16:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-10-15 21:16:01,791 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-10-15 21:16:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-10-15 21:16:01,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-10-15 21:16:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-15 21:16:01,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-15 21:16:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:16:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:16:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-10-15 21:16:01,792 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-10-15 21:16:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:16:01,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:16:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:16:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-15 21:16:01,793 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-15 21:16:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-10-15 21:16:01,793 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-10-15 21:16:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2022-10-15 21:16:01,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2022-10-15 21:16:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:16:01,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:16:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:16:01,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:16:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:16:01,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:16:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-15 21:16:01,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-15 21:16:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2022-10-15 21:16:01,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2022-10-15 21:16:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2022-10-15 21:16:01,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2022-10-15 21:16:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-10-15 21:16:01,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-10-15 21:16:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:16:01,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:16:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:16:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-15 21:16:01,796 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-15 21:16:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:16:01,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:16:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-10-15 21:16:01,797 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-10-15 21:16:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:16:01,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:16:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-15 21:16:01,798 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-15 21:16:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:16:01,799 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:16:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:16:01,799 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:16:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:16:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-10-15 21:16:01,800 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-10-15 21:16:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:16:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-15 21:16:01,801 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-15 21:16:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:16:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:16:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2022-10-15 21:16:01,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2022-10-15 21:16:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:16:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-10-15 21:16:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-10-15 21:16:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-10-15 21:16:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-10-15 21:16:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-15 21:16:01,803 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-15 21:16:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:16:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:16:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:16:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:16:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-15 21:16:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-15 21:16:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:16:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2022-10-15 21:16:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2022-10-15 21:16:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-15 21:16:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-15 21:16:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-15 21:16:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-15 21:16:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:16:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-10-15 21:16:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:16:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:16:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:16:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:16:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-10-15 21:16:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-10-15 21:16:02,498 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:16:02,502 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:16:02,687 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:16:07,556 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:16:07,572 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:16:07,573 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 21:16:07,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:16:07 BoogieIcfgContainer [2022-10-15 21:16:07,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:16:07,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:16:07,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:16:07,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:16:07,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:15:58" (1/3) ... [2022-10-15 21:16:07,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7cde06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:16:07, skipping insertion in model container [2022-10-15 21:16:07,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:01" (2/3) ... [2022-10-15 21:16:07,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7cde06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:16:07, skipping insertion in model container [2022-10-15 21:16:07,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:16:07" (3/3) ... [2022-10-15 21:16:07,589 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-10-15 21:16:07,615 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:16:07,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-10-15 21:16:07,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:16:07,717 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;@28d84a87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:16:07,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-10-15 21:16:07,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 744 states, 533 states have (on average 1.4202626641651033) internal successors, (757), 581 states have internal predecessors, (757), 137 states have call successors, (137), 38 states have call predecessors, (137), 37 states have return successors, (133), 130 states have call predecessors, (133), 133 states have call successors, (133) [2022-10-15 21:16:07,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-15 21:16:07,747 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:16:07,748 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] [2022-10-15 21:16:07,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mwifiex_usb_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mwifiex_usb_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mwifiex_usb_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:16:07,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:16:07,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2043496751, now seen corresponding path program 1 times [2022-10-15 21:16:07,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:16:07,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289040499] [2022-10-15 21:16:07,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:16:07,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:16:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:08,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:16:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:16:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:16:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:08,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:16:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:08,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:16:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:08,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:16:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:08,612 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 21:16:08,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:16:08,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289040499] [2022-10-15 21:16:08,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289040499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:16:08,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:16:08,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:16:08,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923379857] [2022-10-15 21:16:08,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:16:08,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:16:08,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:16:08,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:16:08,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:16:08,663 INFO L87 Difference]: Start difference. First operand has 744 states, 533 states have (on average 1.4202626641651033) internal successors, (757), 581 states have internal predecessors, (757), 137 states have call successors, (137), 38 states have call predecessors, (137), 37 states have return successors, (133), 130 states have call predecessors, (133), 133 states have call successors, (133) Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 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 21:16:10,991 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 21:16:13,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:16,114 WARN L539 Checker$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 21:16:18,137 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 21:16:20,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:16:20,709 INFO L93 Difference]: Finished difference Result 1996 states and 2842 transitions. [2022-10-15 21:16:20,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:16:20,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 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 51 [2022-10-15 21:16:20,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:16:20,740 INFO L225 Difference]: With dead ends: 1996 [2022-10-15 21:16:20,740 INFO L226 Difference]: Without dead ends: 1216 [2022-10-15 21:16:20,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 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 21:16:20,759 INFO L413 NwaCegarLoop]: 1066 mSDtfsCounter, 1219 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 730 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:16:20,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 2945 Invalid, 1710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [730 Valid, 976 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2022-10-15 21:16:20,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-10-15 21:16:20,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1062. [2022-10-15 21:16:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 776 states have (on average 1.4110824742268042) internal successors, (1095), 823 states have internal predecessors, (1095), 191 states have call successors, (191), 59 states have call predecessors, (191), 59 states have return successors, (191), 184 states have call predecessors, (191), 191 states have call successors, (191) [2022-10-15 21:16:20,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1477 transitions. [2022-10-15 21:16:20,959 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1477 transitions. Word has length 51 [2022-10-15 21:16:20,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:16:20,960 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1477 transitions. [2022-10-15 21:16:20,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 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 21:16:20,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1477 transitions. [2022-10-15 21:16:20,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-15 21:16:20,965 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:16:20,965 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, 1] [2022-10-15 21:16:20,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:16:20,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mwifiex_usb_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mwifiex_usb_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mwifiex_usb_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:16:20,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:16:20,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1748952409, now seen corresponding path program 1 times [2022-10-15 21:16:20,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:16:20,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994356726] [2022-10-15 21:16:20,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:16:20,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:16:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:21,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:16:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:21,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:16:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:21,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:16:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:16:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:21,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-15 21:16:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:21,337 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 21:16:21,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:16:21,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994356726] [2022-10-15 21:16:21,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994356726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:16:21,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:16:21,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:16:21,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350853364] [2022-10-15 21:16:21,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:16:21,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:16:21,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:16:21,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:16:21,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:16:21,342 INFO L87 Difference]: Start difference. First operand 1062 states and 1477 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 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 21:16:23,499 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 21:16:25,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:28,328 WARN L539 Checker$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 21:16:30,354 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 21:16:33,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:16:33,657 INFO L93 Difference]: Finished difference Result 2805 states and 3882 transitions. [2022-10-15 21:16:33,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:16:33,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 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) Word has length 55 [2022-10-15 21:16:33,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:16:33,681 INFO L225 Difference]: With dead ends: 2805 [2022-10-15 21:16:33,681 INFO L226 Difference]: Without dead ends: 1755 [2022-10-15 21:16:33,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:16:33,692 INFO L413 NwaCegarLoop]: 1082 mSDtfsCounter, 1066 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 527 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:16:33,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 2910 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 1018 Invalid, 4 Unknown, 0 Unchecked, 12.0s Time] [2022-10-15 21:16:33,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2022-10-15 21:16:33,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1539. [2022-10-15 21:16:33,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1136 states have (on average 1.4022887323943662) internal successors, (1593), 1189 states have internal predecessors, (1593), 275 states have call successors, (275), 92 states have call predecessors, (275), 92 states have return successors, (275), 265 states have call predecessors, (275), 275 states have call successors, (275) [2022-10-15 21:16:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2143 transitions. [2022-10-15 21:16:33,869 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2143 transitions. Word has length 55 [2022-10-15 21:16:33,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:16:33,871 INFO L495 AbstractCegarLoop]: Abstraction has 1539 states and 2143 transitions. [2022-10-15 21:16:33,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 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 21:16:33,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2143 transitions. [2022-10-15 21:16:33,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 21:16:33,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:16:33,881 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 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] [2022-10-15 21:16:33,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:16:33,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mwifiex_usb_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mwifiex_usb_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mwifiex_usb_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:16:33,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:16:33,886 INFO L85 PathProgramCache]: Analyzing trace with hash -545378851, now seen corresponding path program 1 times [2022-10-15 21:16:33,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:16:33,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582581506] [2022-10-15 21:16:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:16:33,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:16:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:16:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:16:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:34,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:16:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:34,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:16:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:34,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:16:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:34,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:16:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:34,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:16:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:16:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:34,721 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:16:34,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:16:34,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582581506] [2022-10-15 21:16:34,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582581506] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:16:34,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:16:34,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 21:16:34,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583686996] [2022-10-15 21:16:34,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:16:34,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:16:34,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:16:34,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:16:34,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:16:34,727 INFO L87 Difference]: Start difference. First operand 1539 states and 2143 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-15 21:16:36,928 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 21:16:40,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:16:40,882 INFO L93 Difference]: Finished difference Result 3246 states and 4542 transitions. [2022-10-15 21:16:40,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:16:40,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2022-10-15 21:16:40,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:16:40,897 INFO L225 Difference]: With dead ends: 3246 [2022-10-15 21:16:40,898 INFO L226 Difference]: Without dead ends: 1724 [2022-10-15 21:16:40,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:16:40,905 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 309 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 308 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:16:40,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 4243 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 1342 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-10-15 21:16:40,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2022-10-15 21:16:40,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1533. [2022-10-15 21:16:40,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1130 states have (on average 1.4) internal successors, (1582), 1184 states have internal predecessors, (1582), 275 states have call successors, (275), 92 states have call predecessors, (275), 92 states have return successors, (275), 264 states have call predecessors, (275), 275 states have call successors, (275) [2022-10-15 21:16:41,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 2132 transitions. [2022-10-15 21:16:41,007 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 2132 transitions. Word has length 81 [2022-10-15 21:16:41,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:16:41,008 INFO L495 AbstractCegarLoop]: Abstraction has 1533 states and 2132 transitions. [2022-10-15 21:16:41,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-15 21:16:41,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 2132 transitions. [2022-10-15 21:16:41,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-15 21:16:41,011 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:16:41,012 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:16:41,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:16:41,013 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mwifiex_usb_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mwifiex_usb_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mwifiex_usb_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:16:41,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:16:41,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1599006032, now seen corresponding path program 1 times [2022-10-15 21:16:41,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:16:41,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951154997] [2022-10-15 21:16:41,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:16:41,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:16:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:16:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:16:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:16:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:16:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:16:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:16:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 21:16:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-15 21:16:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:16:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 21:16:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:16:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:41,624 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-15 21:16:41,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:16:41,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951154997] [2022-10-15 21:16:41,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951154997] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:16:41,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:16:41,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:16:41,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345787987] [2022-10-15 21:16:41,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:16:41,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:16:41,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:16:41,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:16:41,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:16:41,627 INFO L87 Difference]: Start difference. First operand 1533 states and 2132 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 21:16:43,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:45,837 WARN L539 Checker$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 21:16:48,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:50,213 WARN L539 Checker$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 21:16:53,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:16:53,515 INFO L93 Difference]: Finished difference Result 3724 states and 5190 transitions. [2022-10-15 21:16:53,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:16:53,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 100 [2022-10-15 21:16:53,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:16:53,534 INFO L225 Difference]: With dead ends: 3724 [2022-10-15 21:16:53,534 INFO L226 Difference]: Without dead ends: 2218 [2022-10-15 21:16:53,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 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 21:16:53,549 INFO L413 NwaCegarLoop]: 1110 mSDtfsCounter, 1204 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 678 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:16:53,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 2865 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [678 Valid, 984 Invalid, 4 Unknown, 0 Unchecked, 11.6s Time] [2022-10-15 21:16:53,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2022-10-15 21:16:53,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 1947. [2022-10-15 21:16:53,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1452 states have (on average 1.3973829201101928) internal successors, (2029), 1512 states have internal predecessors, (2029), 336 states have call successors, (336), 123 states have call predecessors, (336), 123 states have return successors, (336), 320 states have call predecessors, (336), 336 states have call successors, (336) [2022-10-15 21:16:53,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 2701 transitions. [2022-10-15 21:16:53,687 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 2701 transitions. Word has length 100 [2022-10-15 21:16:53,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:16:53,690 INFO L495 AbstractCegarLoop]: Abstraction has 1947 states and 2701 transitions. [2022-10-15 21:16:53,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-15 21:16:53,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 2701 transitions. [2022-10-15 21:16:53,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-15 21:16:53,696 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:16:53,696 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:16:53,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:16:53,697 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mwifiex_usb_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mwifiex_usb_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mwifiex_usb_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-10-15 21:16:53,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:16:53,698 INFO L85 PathProgramCache]: Analyzing trace with hash 303296934, now seen corresponding path program 1 times [2022-10-15 21:16:53,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:16:53,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446926605] [2022-10-15 21:16:53,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:16:53,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:16:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:54,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:16:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:54,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:16:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:16:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:16:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:54,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:16:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:54,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:16:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:54,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 21:16:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-15 21:16:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:54,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:16:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:55,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 21:16:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-10-15 21:16:55,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:16:55,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446926605] [2022-10-15 21:16:55,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446926605] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:16:55,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:16:55,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:16:55,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371496325] [2022-10-15 21:16:55,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:16:55,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:16:55,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:16:55,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:16:55,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:16:55,031 INFO L87 Difference]: Start difference. First operand 1947 states and 2701 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)