/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--usb--serial--usbserial.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:06:18,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:06:18,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:06:18,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:06:18,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:06:18,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:06:18,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:06:18,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:06:18,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:06:18,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:06:18,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:06:18,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:06:18,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:06:18,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:06:18,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:06:18,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:06:18,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:06:18,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:06:18,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:06:18,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:06:18,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:06:18,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:06:18,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:06:18,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:06:18,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:06:18,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:06:18,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:06:18,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:06:18,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:06:18,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:06:18,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:06:18,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:06:18,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:06:18,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:06:18,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:06:18,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:06:18,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:06:18,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:06:18,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:06:18,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:06:18,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:06:18,158 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 [2022-10-16 13:06:18,202 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:06:18,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:06:18,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:06:18,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:06:18,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:06:18,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:06:18,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:06:18,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:06:18,206 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:06:18,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:06:18,206 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:06:18,207 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:06:18,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:06:18,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:06:18,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:06:18,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:06:18,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:06:18,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:06:18,208 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:06:18,208 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:06:18,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:06:18,209 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:06:18,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:06:18,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:06:18,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:06:18,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:06:18,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:06:18,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:06:18,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:06:18,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:06:18,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:06:18,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:06:18,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:06:18,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:06:18,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:06:18,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:06:18,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:06:18,679 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:06:18,679 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:06:18,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-10-16 13:06:18,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838ebcefc/250a5379fa0c484b8fcb12ed947053f1/FLAGcf4ed0e6a [2022-10-16 13:06:19,905 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:06:19,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-10-16 13:06:19,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838ebcefc/250a5379fa0c484b8fcb12ed947053f1/FLAGcf4ed0e6a [2022-10-16 13:06:20,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838ebcefc/250a5379fa0c484b8fcb12ed947053f1 [2022-10-16 13:06:20,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:06:20,264 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:06:20,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:06:20,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:06:20,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:06:20,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:06:20" (1/1) ... [2022-10-16 13:06:20,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57345205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:20, skipping insertion in model container [2022-10-16 13:06:20,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:06:20" (1/1) ... [2022-10-16 13:06:20,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:06:20,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:06:21,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2022-10-16 13:06:23,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:06:23,288 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:06:23,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2022-10-16 13:06:23,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:06:24,153 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:06:24,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24 WrapperNode [2022-10-16 13:06:24,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:06:24,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:06:24,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:06:24,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:06:24,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,598 INFO L138 Inliner]: procedures = 371, calls = 3017, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6390 [2022-10-16 13:06:24,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:06:24,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:06:24,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:06:24,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:06:24,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,892 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:06:24,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:06:24,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:06:24,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:06:24,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (1/1) ... [2022-10-16 13:06:24,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:06:24,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:24,992 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) [2022-10-16 13:06:25,013 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 [2022-10-16 13:06:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2022-10-16 13:06:25,146 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2022-10-16 13:06:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2022-10-16 13:06:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2022-10-16 13:06:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2022-10-16 13:06:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2022-10-16 13:06:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2022-10-16 13:06:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2022-10-16 13:06:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-10-16 13:06:25,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-10-16 13:06:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2022-10-16 13:06:25,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2022-10-16 13:06:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-10-16 13:06:25,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-10-16 13:06:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:06:25,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:06:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-10-16 13:06:25,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-10-16 13:06:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2022-10-16 13:06:25,149 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2022-10-16 13:06:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2022-10-16 13:06:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2022-10-16 13:06:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2022-10-16 13:06:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2022-10-16 13:06:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-16 13:06:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-16 13:06:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2022-10-16 13:06:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2022-10-16 13:06:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-16 13:06:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-16 13:06:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-16 13:06:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-16 13:06:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2022-10-16 13:06:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2022-10-16 13:06:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:06:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:06:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-10-16 13:06:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-10-16 13:06:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-16 13:06:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-16 13:06:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-10-16 13:06:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-10-16 13:06:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2022-10-16 13:06:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2022-10-16 13:06:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2022-10-16 13:06:25,167 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2022-10-16 13:06:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-10-16 13:06:25,167 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-10-16 13:06:25,167 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 13:06:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 13:06:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:06:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:06:25,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-10-16 13:06:25,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-10-16 13:06:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2022-10-16 13:06:25,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2022-10-16 13:06:25,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2022-10-16 13:06:25,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2022-10-16 13:06:25,172 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-10-16 13:06:25,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-10-16 13:06:25,172 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2022-10-16 13:06:25,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2022-10-16 13:06:25,172 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-16 13:06:25,173 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-16 13:06:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:06:25,173 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:06:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2022-10-16 13:06:25,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2022-10-16 13:06:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2022-10-16 13:06:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2022-10-16 13:06:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2022-10-16 13:06:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2022-10-16 13:06:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2022-10-16 13:06:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2022-10-16 13:06:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2022-10-16 13:06:25,175 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2022-10-16 13:06:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2022-10-16 13:06:25,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2022-10-16 13:06:25,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-10-16 13:06:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-10-16 13:06:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-10-16 13:06:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-10-16 13:06:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 13:06:25,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 13:06:25,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:06:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 13:06:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 13:06:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2022-10-16 13:06:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2022-10-16 13:06:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-10-16 13:06:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-10-16 13:06:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2022-10-16 13:06:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2022-10-16 13:06:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2022-10-16 13:06:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2022-10-16 13:06:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-10-16 13:06:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-10-16 13:06:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:06:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-16 13:06:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-16 13:06:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-10-16 13:06:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2022-10-16 13:06:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2022-10-16 13:06:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2022-10-16 13:06:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2022-10-16 13:06:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-16 13:06:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-16 13:06:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 13:06:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 13:06:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-10-16 13:06:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-10-16 13:06:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2022-10-16 13:06:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2022-10-16 13:06:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:06:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:06:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-10-16 13:06:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-10-16 13:06:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-16 13:06:25,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-16 13:06:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-10-16 13:06:25,183 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-10-16 13:06:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 13:06:25,183 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 13:06:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2022-10-16 13:06:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2022-10-16 13:06:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2022-10-16 13:06:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2022-10-16 13:06:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 13:06:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 13:06:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-16 13:06:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-16 13:06:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 13:06:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 13:06:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2022-10-16 13:06:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2022-10-16 13:06:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-10-16 13:06:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-10-16 13:06:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-10-16 13:06:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-10-16 13:06:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-16 13:06:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-16 13:06:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2022-10-16 13:06:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2022-10-16 13:06:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2022-10-16 13:06:25,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2022-10-16 13:06:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:06:25,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:06:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2022-10-16 13:06:25,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2022-10-16 13:06:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 13:06:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-16 13:06:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-10-16 13:06:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-10-16 13:06:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-10-16 13:06:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-10-16 13:06:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2022-10-16 13:06:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2022-10-16 13:06:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2022-10-16 13:06:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2022-10-16 13:06:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-10-16 13:06:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-10-16 13:06:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:06:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-10-16 13:06:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2022-10-16 13:06:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-16 13:06:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-16 13:06:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2022-10-16 13:06:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2022-10-16 13:06:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-16 13:06:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-16 13:06:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2022-10-16 13:06:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2022-10-16 13:06:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2022-10-16 13:06:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2022-10-16 13:06:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 13:06:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 13:06:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-16 13:06:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-16 13:06:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-10-16 13:06:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-10-16 13:06:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2022-10-16 13:06:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2022-10-16 13:06:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:06:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 13:06:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2022-10-16 13:06:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2022-10-16 13:06:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2022-10-16 13:06:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2022-10-16 13:06:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-10-16 13:06:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-10-16 13:06:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:06:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2022-10-16 13:06:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2022-10-16 13:06:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2022-10-16 13:06:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2022-10-16 13:06:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-10-16 13:06:25,195 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-10-16 13:06:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:06:25,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:06:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2022-10-16 13:06:25,195 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2022-10-16 13:06:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2022-10-16 13:06:25,196 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2022-10-16 13:06:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2022-10-16 13:06:25,196 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2022-10-16 13:06:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:06:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2022-10-16 13:06:25,196 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2022-10-16 13:06:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:06:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-16 13:06:25,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-16 13:06:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:06:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 13:06:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2022-10-16 13:06:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2022-10-16 13:06:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2022-10-16 13:06:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2022-10-16 13:06:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:06:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:06:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-16 13:06:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-16 13:06:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2022-10-16 13:06:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2022-10-16 13:06:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-16 13:06:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-16 13:06:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-10-16 13:06:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-10-16 13:06:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2022-10-16 13:06:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2022-10-16 13:06:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2022-10-16 13:06:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2022-10-16 13:06:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2022-10-16 13:06:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2022-10-16 13:06:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2022-10-16 13:06:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2022-10-16 13:06:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-10-16 13:06:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-10-16 13:06:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-16 13:06:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-16 13:06:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2022-10-16 13:06:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2022-10-16 13:06:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-16 13:06:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-16 13:06:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2022-10-16 13:06:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2022-10-16 13:06:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-16 13:06:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-16 13:06:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-16 13:06:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-16 13:06:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:06:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:06:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:06:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-10-16 13:06:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-10-16 13:06:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-10-16 13:06:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-10-16 13:06:25,204 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 13:06:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 13:06:26,116 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:06:26,125 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:06:26,714 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:06:27,556 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2022-10-16 13:06:36,227 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:06:36,252 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:06:36,252 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 13:06:36,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:06:36 BoogieIcfgContainer [2022-10-16 13:06:36,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:06:36,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:06:36,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:06:36,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:06:36,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:06:20" (1/3) ... [2022-10-16 13:06:36,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e21cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:06:36, skipping insertion in model container [2022-10-16 13:06:36,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:24" (2/3) ... [2022-10-16 13:06:36,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e21cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:06:36, skipping insertion in model container [2022-10-16 13:06:36,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:06:36" (3/3) ... [2022-10-16 13:06:36,269 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-10-16 13:06:36,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:06:36,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 128 error locations. [2022-10-16 13:06:36,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:06:36,449 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;@5eaeee4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:06:36,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2022-10-16 13:06:36,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 2347 states, 1633 states have (on average 1.3937538273116963) internal successors, (2276), 1801 states have internal predecessors, (2276), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) [2022-10-16 13:06:36,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 13:06:36,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:36,509 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:06:36,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [usb_serial_generic_write_startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, usb_serial_generic_write_startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 126 more)] === [2022-10-16 13:06:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:36,517 INFO L85 PathProgramCache]: Analyzing trace with hash -494807025, now seen corresponding path program 1 times [2022-10-16 13:06:36,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:36,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008142663] [2022-10-16 13:06:36,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:36,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:06:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:06:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:06:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:06:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:06:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:06:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:06:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:06:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,782 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-16 13:06:37,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:37,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008142663] [2022-10-16 13:06:37,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008142663] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:37,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:37,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:06:37,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822444001] [2022-10-16 13:06:37,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:37,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:37,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:37,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:37,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:06:37,862 INFO L87 Difference]: Start difference. First operand has 2347 states, 1633 states have (on average 1.3937538273116963) internal successors, (2276), 1801 states have internal predecessors, (2276), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:06:42,913 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 [] [2022-10-16 13:06:49,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:49,947 INFO L93 Difference]: Finished difference Result 7544 states and 10743 transitions. [2022-10-16 13:06:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:06:49,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2022-10-16 13:06:49,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:50,046 INFO L225 Difference]: With dead ends: 7544 [2022-10-16 13:06:50,047 INFO L226 Difference]: Without dead ends: 5111 [2022-10-16 13:06:50,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:06:50,085 INFO L413 NwaCegarLoop]: 3403 mSDtfsCounter, 4513 mSDsluCounter, 4085 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 1439 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4848 SdHoareTripleChecker+Valid, 7488 SdHoareTripleChecker+Invalid, 3529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1439 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:50,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4848 Valid, 7488 Invalid, 3529 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1439 Valid, 2089 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-10-16 13:06:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5111 states. [2022-10-16 13:06:50,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5111 to 4419. [2022-10-16 13:06:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 3185 states have (on average 1.383673469387755) internal successors, (4407), 3351 states have internal predecessors, (4407), 868 states have call successors, (868), 238 states have call predecessors, (868), 238 states have return successors, (868), 845 states have call predecessors, (868), 868 states have call successors, (868) [2022-10-16 13:06:50,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 6143 transitions. [2022-10-16 13:06:50,596 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 6143 transitions. Word has length 68 [2022-10-16 13:06:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:50,598 INFO L495 AbstractCegarLoop]: Abstraction has 4419 states and 6143 transitions. [2022-10-16 13:06:50,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:06:50,598 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 6143 transitions. [2022-10-16 13:06:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 13:06:50,608 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:50,609 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:06:50,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:06:50,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [usb_serial_generic_write_startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, usb_serial_generic_write_startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 126 more)] === [2022-10-16 13:06:50,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:50,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1104874358, now seen corresponding path program 1 times [2022-10-16 13:06:50,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:50,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689148262] [2022-10-16 13:06:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:50,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:06:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:06:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:06:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:06:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:06:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:06:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:06:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-16 13:06:51,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:51,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689148262] [2022-10-16 13:06:51,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689148262] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:51,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:51,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:06:51,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572728017] [2022-10-16 13:06:51,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:51,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:51,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:51,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:51,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:06:51,495 INFO L87 Difference]: Start difference. First operand 4419 states and 6143 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-16 13:06:55,605 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 [] [2022-10-16 13:07:02,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:02,781 INFO L93 Difference]: Finished difference Result 14136 states and 19953 transitions. [2022-10-16 13:07:02,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:07:02,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 68 [2022-10-16 13:07:02,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:02,876 INFO L225 Difference]: With dead ends: 14136 [2022-10-16 13:07:02,876 INFO L226 Difference]: Without dead ends: 9738 [2022-10-16 13:07:02,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:07:02,910 INFO L413 NwaCegarLoop]: 3365 mSDtfsCounter, 4393 mSDsluCounter, 3997 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1368 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4712 SdHoareTripleChecker+Valid, 7362 SdHoareTripleChecker+Invalid, 3405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1368 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:02,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4712 Valid, 7362 Invalid, 3405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1368 Valid, 2036 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-10-16 13:07:02,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9738 states. [2022-10-16 13:07:03,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9738 to 8528. [2022-10-16 13:07:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 6240 states have (on average 1.3871794871794871) internal successors, (8656), 6442 states have internal predecessors, (8656), 1696 states have call successors, (1696), 464 states have call predecessors, (1696), 464 states have return successors, (1696), 1651 states have call predecessors, (1696), 1696 states have call successors, (1696) [2022-10-16 13:07:03,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 12048 transitions. [2022-10-16 13:07:03,576 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 12048 transitions. Word has length 68 [2022-10-16 13:07:03,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:03,579 INFO L495 AbstractCegarLoop]: Abstraction has 8528 states and 12048 transitions. [2022-10-16 13:07:03,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-16 13:07:03,579 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 12048 transitions. [2022-10-16 13:07:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 13:07:03,585 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:03,585 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:07:03,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:07:03,586 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [usb_serial_generic_write_startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, usb_serial_generic_write_startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 126 more)] === [2022-10-16 13:07:03,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:03,587 INFO L85 PathProgramCache]: Analyzing trace with hash -989189798, now seen corresponding path program 1 times [2022-10-16 13:07:03,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:03,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467476936] [2022-10-16 13:07:03,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:03,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:03,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:07:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:03,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:07:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:03,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:07:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:07:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:07:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:07:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:07:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:07:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,139 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-16 13:07:04,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:04,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467476936] [2022-10-16 13:07:04,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467476936] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:07:04,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:07:04,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:07:04,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481510993] [2022-10-16 13:07:04,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:07:04,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:07:04,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:04,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:07:04,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:07:04,150 INFO L87 Difference]: Start difference. First operand 8528 states and 12048 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:07:07,977 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 [] [2022-10-16 13:07:18,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:18,048 INFO L93 Difference]: Finished difference Result 28210 states and 40976 transitions. [2022-10-16 13:07:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:07:18,049 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), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 70 [2022-10-16 13:07:18,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:18,198 INFO L225 Difference]: With dead ends: 28210 [2022-10-16 13:07:18,199 INFO L226 Difference]: Without dead ends: 19703 [2022-10-16 13:07:18,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:07:18,251 INFO L413 NwaCegarLoop]: 3328 mSDtfsCounter, 6040 mSDsluCounter, 4017 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 2710 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6370 SdHoareTripleChecker+Valid, 7345 SdHoareTripleChecker+Invalid, 5178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2710 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:18,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6370 Valid, 7345 Invalid, 5178 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2710 Valid, 2467 Invalid, 1 Unknown, 0 Unchecked, 12.4s Time] [2022-10-16 13:07:18,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2022-10-16 13:07:19,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 17655. [2022-10-16 13:07:19,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17655 states, 13007 states have (on average 1.3842546321211655) internal successors, (18005), 13296 states have internal predecessors, (18005), 3488 states have call successors, (3488), 928 states have call predecessors, (3488), 1032 states have return successors, (4188), 3490 states have call predecessors, (4188), 3488 states have call successors, (4188) [2022-10-16 13:07:20,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17655 states to 17655 states and 25681 transitions. [2022-10-16 13:07:20,128 INFO L78 Accepts]: Start accepts. Automaton has 17655 states and 25681 transitions. Word has length 70 [2022-10-16 13:07:20,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:20,129 INFO L495 AbstractCegarLoop]: Abstraction has 17655 states and 25681 transitions. [2022-10-16 13:07:20,130 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), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:07:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 17655 states and 25681 transitions. [2022-10-16 13:07:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 13:07:20,135 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:20,136 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:07:20,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:07:20,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [usb_serial_generic_write_startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, usb_serial_generic_write_startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 126 more)] === [2022-10-16 13:07:20,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:20,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1780378985, now seen corresponding path program 1 times [2022-10-16 13:07:20,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:20,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746602187] [2022-10-16 13:07:20,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:20,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:07:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:07:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:07:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:07:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:07:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:07:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:07:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:07:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:20,611 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-16 13:07:20,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:20,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746602187] [2022-10-16 13:07:20,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746602187] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:07:20,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:07:20,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:07:20,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351067438] [2022-10-16 13:07:20,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:07:20,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:07:20,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:20,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:07:20,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:07:20,614 INFO L87 Difference]: Start difference. First operand 17655 states and 25681 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:07:23,681 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 [] [2022-10-16 13:07:34,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:34,875 INFO L93 Difference]: Finished difference Result 53807 states and 78857 transitions. [2022-10-16 13:07:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:07:34,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2022-10-16 13:07:34,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:35,137 INFO L225 Difference]: With dead ends: 53807 [2022-10-16 13:07:35,137 INFO L226 Difference]: Without dead ends: 36173 [2022-10-16 13:07:35,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:07:35,250 INFO L413 NwaCegarLoop]: 3285 mSDtfsCounter, 4190 mSDsluCounter, 5354 mSDsCounter, 0 mSdLazyCounter, 3276 mSolverCounterSat, 1344 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4519 SdHoareTripleChecker+Valid, 8639 SdHoareTripleChecker+Invalid, 4621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1344 IncrementalHoareTripleChecker+Valid, 3276 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:35,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4519 Valid, 8639 Invalid, 4621 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1344 Valid, 3276 Invalid, 1 Unknown, 0 Unchecked, 11.8s Time] [2022-10-16 13:07:35,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36173 states. [2022-10-16 13:07:38,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36173 to 33383. [2022-10-16 13:07:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33383 states, 24679 states have (on average 1.3808095952023989) internal successors, (34077), 25124 states have internal predecessors, (34077), 6576 states have call successors, (6576), 1792 states have call predecessors, (6576), 2000 states have return successors, (7896), 6582 states have call predecessors, (7896), 6576 states have call successors, (7896) [2022-10-16 13:07:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33383 states to 33383 states and 48549 transitions. [2022-10-16 13:07:38,367 INFO L78 Accepts]: Start accepts. Automaton has 33383 states and 48549 transitions. Word has length 77 [2022-10-16 13:07:38,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:38,368 INFO L495 AbstractCegarLoop]: Abstraction has 33383 states and 48549 transitions. [2022-10-16 13:07:38,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:07:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 33383 states and 48549 transitions. [2022-10-16 13:07:38,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 13:07:38,371 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:38,371 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:07:38,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:07:38,372 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [usb_serial_generic_write_startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, usb_serial_generic_write_startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 126 more)] === [2022-10-16 13:07:38,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:38,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1369678447, now seen corresponding path program 1 times [2022-10-16 13:07:38,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:38,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347540396] [2022-10-16 13:07:38,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:38,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:07:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:07:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:07:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:07:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:07:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:07:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:07:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 13:07:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:07:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-16 13:07:38,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:38,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347540396] [2022-10-16 13:07:38,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347540396] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:07:38,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:07:38,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:07:38,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536655387] [2022-10-16 13:07:38,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:07:38,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:07:38,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:38,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:07:38,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:07:38,880 INFO L87 Difference]: Start difference. First operand 33383 states and 48549 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:07:42,014 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 [] [2022-10-16 13:07:48,112 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 [] [2022-10-16 13:07:58,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:58,890 INFO L93 Difference]: Finished difference Result 106877 states and 157161 transitions. [2022-10-16 13:07:58,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:07:58,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2022-10-16 13:07:58,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:59,595 INFO L225 Difference]: With dead ends: 106877 [2022-10-16 13:07:59,596 INFO L226 Difference]: Without dead ends: 73515 [2022-10-16 13:07:59,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:07:59,786 INFO L413 NwaCegarLoop]: 3652 mSDtfsCounter, 5807 mSDsluCounter, 3862 mSDsCounter, 0 mSdLazyCounter, 2820 mSolverCounterSat, 2491 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6152 SdHoareTripleChecker+Valid, 7514 SdHoareTripleChecker+Invalid, 5313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2491 IncrementalHoareTripleChecker+Valid, 2820 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:59,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6152 Valid, 7514 Invalid, 5313 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2491 Valid, 2820 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2022-10-16 13:07:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73515 states. [2022-10-16 13:08:05,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73515 to 66131. [2022-10-16 13:08:05,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66131 states, 48967 states have (on average 1.379561745665448) internal successors, (67553), 49732 states have internal predecessors, (67553), 13036 states have call successors, (13036), 3584 states have call predecessors, (13036), 4000 states have return successors, (15612), 13046 states have call predecessors, (15612), 13036 states have call successors, (15612) [2022-10-16 13:08:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66131 states to 66131 states and 96201 transitions. [2022-10-16 13:08:07,127 INFO L78 Accepts]: Start accepts. Automaton has 66131 states and 96201 transitions. Word has length 78 [2022-10-16 13:08:07,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:07,128 INFO L495 AbstractCegarLoop]: Abstraction has 66131 states and 96201 transitions. [2022-10-16 13:08:07,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:08:07,129 INFO L276 IsEmpty]: Start isEmpty. Operand 66131 states and 96201 transitions. [2022-10-16 13:08:07,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 13:08:07,133 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:07,135 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:07,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:08:07,135 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [usb_serial_generic_write_startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, usb_serial_generic_write_startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 126 more)] === [2022-10-16 13:08:07,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:07,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1208999571, now seen corresponding path program 1 times [2022-10-16 13:08:07,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:07,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894216486] [2022-10-16 13:08:07,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:07,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:08:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:08:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:08:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:08:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:08:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:08:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:08:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,674 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-16 13:08:07,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:07,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894216486] [2022-10-16 13:08:07,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894216486] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:08:07,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:08:07,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:08:07,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567228535] [2022-10-16 13:08:07,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:08:07,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:08:07,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:07,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:08:07,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:08:07,678 INFO L87 Difference]: Start difference. First operand 66131 states and 96201 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:08:10,698 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 [] [2022-10-16 13:08:28,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:28,968 INFO L93 Difference]: Finished difference Result 207151 states and 303981 transitions. [2022-10-16 13:08:28,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:08:28,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2022-10-16 13:08:28,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:30,467 INFO L225 Difference]: With dead ends: 207151 [2022-10-16 13:08:30,468 INFO L226 Difference]: Without dead ends: 141041 [2022-10-16 13:08:30,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:08:30,907 INFO L413 NwaCegarLoop]: 3939 mSDtfsCounter, 4191 mSDsluCounter, 4303 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 1252 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4521 SdHoareTripleChecker+Valid, 8242 SdHoareTripleChecker+Invalid, 3423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1252 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:30,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4521 Valid, 8242 Invalid, 3423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1252 Valid, 2170 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2022-10-16 13:08:31,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141041 states. [2022-10-16 13:08:41,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141041 to 130387. [2022-10-16 13:08:41,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130387 states, 96567 states have (on average 1.3766296975157144) internal successors, (132937), 97972 states have internal predecessors, (132937), 25724 states have call successors, (25724), 7136 states have call predecessors, (25724), 7968 states have return successors, (30844), 25742 states have call predecessors, (30844), 25724 states have call successors, (30844) [2022-10-16 13:08:43,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130387 states to 130387 states and 189505 transitions. [2022-10-16 13:08:43,379 INFO L78 Accepts]: Start accepts. Automaton has 130387 states and 189505 transitions. Word has length 77 [2022-10-16 13:08:43,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:43,382 INFO L495 AbstractCegarLoop]: Abstraction has 130387 states and 189505 transitions. [2022-10-16 13:08:43,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:08:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 130387 states and 189505 transitions. [2022-10-16 13:08:43,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 13:08:43,391 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:43,392 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:43,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:08:43,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting usb_serial_suspendErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [usb_serial_generic_write_startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, usb_serial_generic_write_startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 126 more)] === [2022-10-16 13:08:43,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:43,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1557090579, now seen corresponding path program 1 times [2022-10-16 13:08:43,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:43,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934023272] [2022-10-16 13:08:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:43,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:44,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:44,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:08:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:44,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:08:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:44,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:44,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:08:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:44,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:08:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:44,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:08:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:44,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:08:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:08:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-16 13:08:44,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:44,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934023272] [2022-10-16 13:08:44,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934023272] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:08:44,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:08:44,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:08:44,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017727452] [2022-10-16 13:08:44,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:08:44,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:08:44,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:44,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:08:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:08:44,358 INFO L87 Difference]: Start difference. First operand 130387 states and 189505 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:08:46,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:08:49,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:09:20,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:09:20,457 INFO L93 Difference]: Finished difference Result 401861 states and 589279 transitions. [2022-10-16 13:09:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:09:20,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2022-10-16 13:09:20,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:09:23,146 INFO L225 Difference]: With dead ends: 401861 [2022-10-16 13:09:23,146 INFO L226 Difference]: Without dead ends: 271495 [2022-10-16 13:09:23,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:09:23,705 INFO L413 NwaCegarLoop]: 5397 mSDtfsCounter, 3712 mSDsluCounter, 5089 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 977 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4051 SdHoareTripleChecker+Valid, 10486 SdHoareTripleChecker+Invalid, 3376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 977 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:09:23,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4051 Valid, 10486 Invalid, 3376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [977 Valid, 2397 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2022-10-16 13:09:23,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271495 states.