/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:04:44,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:04:44,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:04:44,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:04:44,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:04:44,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:04:44,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:04:44,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:04:44,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:04:44,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:04:44,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:04:44,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:04:44,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:04:44,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:04:44,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:04:44,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:04:44,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:04:44,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:04:44,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:04:44,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:04:44,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:04:44,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:04:44,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:04:44,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:04:44,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:04:44,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:04:44,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:04:44,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:04:44,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:04:44,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:04:44,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:04:44,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:04:44,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:04:44,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:04:44,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:04:44,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:04:44,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:04:44,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:04:44,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:04:44,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:04:44,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:04:44,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:04:44,408 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:04:44,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:04:44,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:04:44,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:04:44,411 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:04:44,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:04:44,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:04:44,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:04:44,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:04:44,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:04:44,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:04:44,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:04:44,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:04:44,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:04:44,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:04:44,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:04:44,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:04:44,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:04:44,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:04:44,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:04:44,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:04:44,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:04:44,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:04:44,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:04:44,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:04:44,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:04:44,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:04:44,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:04:44,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:04:44,827 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:04:44,828 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:04:44,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2020-12-22 13:04:44,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c317f080/fce2c81a7c1e44ca903b3623845cc719/FLAGd0ceae992 [2020-12-22 13:04:45,980 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:04:45,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2020-12-22 13:04:46,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c317f080/fce2c81a7c1e44ca903b3623845cc719/FLAGd0ceae992 [2020-12-22 13:04:46,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c317f080/fce2c81a7c1e44ca903b3623845cc719 [2020-12-22 13:04:46,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:04:46,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:04:46,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:04:46,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:04:46,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:04:46,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:04:46" (1/1) ... [2020-12-22 13:04:46,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77470c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:46, skipping insertion in model container [2020-12-22 13:04:46,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:04:46" (1/1) ... [2020-12-22 13:04:46,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:04:46,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:04:48,896 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i[258672,258685] [2020-12-22 13:04:49,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:04:49,045 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:04:49,567 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i[258672,258685] [2020-12-22 13:04:49,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:04:50,128 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:04:50,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50 WrapperNode [2020-12-22 13:04:50,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:04:50,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:04:50,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:04:50,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:04:50,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (1/1) ... [2020-12-22 13:04:50,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (1/1) ... [2020-12-22 13:04:50,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:04:50,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:04:50,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:04:50,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:04:50,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (1/1) ... [2020-12-22 13:04:50,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (1/1) ... [2020-12-22 13:04:50,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (1/1) ... [2020-12-22 13:04:50,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (1/1) ... [2020-12-22 13:04:50,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (1/1) ... [2020-12-22 13:04:50,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (1/1) ... [2020-12-22 13:04:50,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (1/1) ... [2020-12-22 13:04:50,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:04:50,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:04:50,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:04:50,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:04:50,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:04:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2020-12-22 13:04:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2020-12-22 13:04:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-12-22 13:04:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-12-22 13:04:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2020-12-22 13:04:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2020-12-22 13:04:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2020-12-22 13:04:51,190 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2020-12-22 13:04:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2020-12-22 13:04:51,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2020-12-22 13:04:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2020-12-22 13:04:51,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2020-12-22 13:04:51,191 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2020-12-22 13:04:51,191 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2020-12-22 13:04:51,191 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2020-12-22 13:04:51,191 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2020-12-22 13:04:51,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2020-12-22 13:04:51,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2020-12-22 13:04:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2020-12-22 13:04:51,192 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2020-12-22 13:04:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2020-12-22 13:04:51,192 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2020-12-22 13:04:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 13:04:51,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 13:04:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:04:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2020-12-22 13:04:51,193 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2020-12-22 13:04:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2020-12-22 13:04:51,193 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2020-12-22 13:04:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:04:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-12-22 13:04:51,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-12-22 13:04:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-12-22 13:04:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2020-12-22 13:04:51,194 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2020-12-22 13:04:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2020-12-22 13:04:51,195 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2020-12-22 13:04:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:04:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:04:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2020-12-22 13:04:51,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2020-12-22 13:04:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2020-12-22 13:04:51,195 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2020-12-22 13:04:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2020-12-22 13:04:51,196 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2020-12-22 13:04:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2020-12-22 13:04:51,196 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2020-12-22 13:04:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2020-12-22 13:04:51,197 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2020-12-22 13:04:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2020-12-22 13:04:51,197 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2020-12-22 13:04:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2020-12-22 13:04:51,197 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2020-12-22 13:04:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:04:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2020-12-22 13:04:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2020-12-22 13:04:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2020-12-22 13:04:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2020-12-22 13:04:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:04:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2020-12-22 13:04:51,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2020-12-22 13:04:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2020-12-22 13:04:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2020-12-22 13:04:51,199 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2020-12-22 13:04:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2020-12-22 13:04:51,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2020-12-22 13:04:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:04:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:04:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 13:04:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:04:51,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:04:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 13:04:51,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 13:04:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2020-12-22 13:04:51,201 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2020-12-22 13:04:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2020-12-22 13:04:51,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2020-12-22 13:04:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2020-12-22 13:04:51,202 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2020-12-22 13:04:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2020-12-22 13:04:51,202 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2020-12-22 13:04:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 13:04:51,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 13:04:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:04:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:04:51,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:05:22,118 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:05:22,118 INFO L299 CfgBuilder]: Removed 1549 assume(true) statements. [2020-12-22 13:05:22,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:05:22 BoogieIcfgContainer [2020-12-22 13:05:22,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:05:22,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:05:22,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:05:22,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:05:22,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:04:46" (1/3) ... [2020-12-22 13:05:22,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a31aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:05:22, skipping insertion in model container [2020-12-22 13:05:22,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:04:50" (2/3) ... [2020-12-22 13:05:22,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a31aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:05:22, skipping insertion in model container [2020-12-22 13:05:22,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:05:22" (3/3) ... [2020-12-22 13:05:22,146 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2020-12-22 13:05:22,154 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:05:22,160 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 46 error locations. [2020-12-22 13:05:22,181 INFO L253 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2020-12-22 13:05:22,219 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:05:22,220 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:05:22,220 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:05:22,220 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:05:22,220 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:05:22,220 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:05:22,220 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:05:22,221 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:05:22,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states. [2020-12-22 13:05:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 13:05:22,272 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:22,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:22,274 INFO L429 AbstractCegarLoop]: === Iteration 1 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:22,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:22,280 INFO L82 PathProgramCache]: Analyzing trace with hash -673943287, now seen corresponding path program 1 times [2020-12-22 13:05:22,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:22,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177203527] [2020-12-22 13:05:22,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:05:23,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177203527] [2020-12-22 13:05:23,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:05:23,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:05:23,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184799718] [2020-12-22 13:05:23,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:05:23,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:05:23,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:05:23,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:05:23,344 INFO L87 Difference]: Start difference. First operand 1814 states. Second operand 3 states. [2020-12-22 13:05:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:05:26,204 INFO L93 Difference]: Finished difference Result 5055 states and 7003 transitions. [2020-12-22 13:05:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:05:26,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-22 13:05:26,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:05:26,274 INFO L225 Difference]: With dead ends: 5055 [2020-12-22 13:05:26,275 INFO L226 Difference]: Without dead ends: 3243 [2020-12-22 13:05:26,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:05:26,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3243 states. [2020-12-22 13:05:26,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3243 to 3193. [2020-12-22 13:05:26,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3193 states. [2020-12-22 13:05:26,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 4277 transitions. [2020-12-22 13:05:26,588 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 4277 transitions. Word has length 15 [2020-12-22 13:05:26,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:05:26,589 INFO L481 AbstractCegarLoop]: Abstraction has 3193 states and 4277 transitions. [2020-12-22 13:05:26,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:05:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 4277 transitions. [2020-12-22 13:05:26,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 13:05:26,590 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:26,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:26,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:05:26,591 INFO L429 AbstractCegarLoop]: === Iteration 2 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:26,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:26,592 INFO L82 PathProgramCache]: Analyzing trace with hash 582596825, now seen corresponding path program 1 times [2020-12-22 13:05:26,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:26,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672892212] [2020-12-22 13:05:26,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:05:27,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672892212] [2020-12-22 13:05:27,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:05:27,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:05:27,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599170405] [2020-12-22 13:05:27,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:05:27,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:05:27,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:05:27,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:05:27,016 INFO L87 Difference]: Start difference. First operand 3193 states and 4277 transitions. Second operand 3 states. [2020-12-22 13:05:29,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:05:29,265 INFO L93 Difference]: Finished difference Result 3193 states and 4277 transitions. [2020-12-22 13:05:29,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:05:29,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-22 13:05:29,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:05:29,287 INFO L225 Difference]: With dead ends: 3193 [2020-12-22 13:05:29,287 INFO L226 Difference]: Without dead ends: 3191 [2020-12-22 13:05:29,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:05:29,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2020-12-22 13:05:29,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 3191. [2020-12-22 13:05:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3191 states. [2020-12-22 13:05:29,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3191 states to 3191 states and 4275 transitions. [2020-12-22 13:05:29,429 INFO L78 Accepts]: Start accepts. Automaton has 3191 states and 4275 transitions. Word has length 16 [2020-12-22 13:05:29,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:05:29,429 INFO L481 AbstractCegarLoop]: Abstraction has 3191 states and 4275 transitions. [2020-12-22 13:05:29,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:05:29,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3191 states and 4275 transitions. [2020-12-22 13:05:29,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 13:05:29,431 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:29,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:29,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:05:29,432 INFO L429 AbstractCegarLoop]: === Iteration 3 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:29,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:29,433 INFO L82 PathProgramCache]: Analyzing trace with hash 880634643, now seen corresponding path program 1 times [2020-12-22 13:05:29,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:29,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86789546] [2020-12-22 13:05:29,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:05:29,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86789546] [2020-12-22 13:05:29,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:05:29,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:05:29,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898735271] [2020-12-22 13:05:29,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:05:29,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:05:29,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:05:29,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:05:29,846 INFO L87 Difference]: Start difference. First operand 3191 states and 4275 transitions. Second operand 3 states. [2020-12-22 13:05:32,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:05:32,150 INFO L93 Difference]: Finished difference Result 3191 states and 4275 transitions. [2020-12-22 13:05:32,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:05:32,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 13:05:32,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:05:32,173 INFO L225 Difference]: With dead ends: 3191 [2020-12-22 13:05:32,173 INFO L226 Difference]: Without dead ends: 3189 [2020-12-22 13:05:32,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:05:32,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2020-12-22 13:05:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 3189. [2020-12-22 13:05:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3189 states. [2020-12-22 13:05:32,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3189 states to 3189 states and 4273 transitions. [2020-12-22 13:05:32,323 INFO L78 Accepts]: Start accepts. Automaton has 3189 states and 4273 transitions. Word has length 17 [2020-12-22 13:05:32,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:05:32,324 INFO L481 AbstractCegarLoop]: Abstraction has 3189 states and 4273 transitions. [2020-12-22 13:05:32,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:05:32,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3189 states and 4273 transitions. [2020-12-22 13:05:32,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 13:05:32,325 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:32,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:32,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:05:32,326 INFO L429 AbstractCegarLoop]: === Iteration 4 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:32,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:32,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1529872419, now seen corresponding path program 1 times [2020-12-22 13:05:32,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:32,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125957372] [2020-12-22 13:05:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:32,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:05:32,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125957372] [2020-12-22 13:05:32,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:05:32,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:05:32,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564026962] [2020-12-22 13:05:32,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:05:32,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:05:32,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:05:32,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:05:32,704 INFO L87 Difference]: Start difference. First operand 3189 states and 4273 transitions. Second operand 3 states. [2020-12-22 13:05:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:05:35,102 INFO L93 Difference]: Finished difference Result 3189 states and 4273 transitions. [2020-12-22 13:05:35,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:05:35,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-22 13:05:35,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:05:35,124 INFO L225 Difference]: With dead ends: 3189 [2020-12-22 13:05:35,125 INFO L226 Difference]: Without dead ends: 3160 [2020-12-22 13:05:35,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:05:35,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2020-12-22 13:05:35,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 3160. [2020-12-22 13:05:35,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3160 states. [2020-12-22 13:05:35,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4235 transitions. [2020-12-22 13:05:35,271 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4235 transitions. Word has length 18 [2020-12-22 13:05:35,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:05:35,272 INFO L481 AbstractCegarLoop]: Abstraction has 3160 states and 4235 transitions. [2020-12-22 13:05:35,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:05:35,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4235 transitions. [2020-12-22 13:05:35,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 13:05:35,275 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:35,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:35,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:05:35,276 INFO L429 AbstractCegarLoop]: === Iteration 5 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:35,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:35,277 INFO L82 PathProgramCache]: Analyzing trace with hash -989379772, now seen corresponding path program 1 times [2020-12-22 13:05:35,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:35,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142126234] [2020-12-22 13:05:35,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:35,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:05:35,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142126234] [2020-12-22 13:05:35,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:05:35,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:05:35,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147984201] [2020-12-22 13:05:35,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:05:35,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:05:35,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:05:35,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:05:35,755 INFO L87 Difference]: Start difference. First operand 3160 states and 4235 transitions. Second operand 4 states. [2020-12-22 13:05:35,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:05:35,956 INFO L93 Difference]: Finished difference Result 6179 states and 8289 transitions. [2020-12-22 13:05:35,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:05:35,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-12-22 13:05:35,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:05:35,986 INFO L225 Difference]: With dead ends: 6179 [2020-12-22 13:05:35,987 INFO L226 Difference]: Without dead ends: 3160 [2020-12-22 13:05:36,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:05:36,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2020-12-22 13:05:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 3160. [2020-12-22 13:05:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3160 states. [2020-12-22 13:05:36,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4234 transitions. [2020-12-22 13:05:36,155 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4234 transitions. Word has length 30 [2020-12-22 13:05:36,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:05:36,155 INFO L481 AbstractCegarLoop]: Abstraction has 3160 states and 4234 transitions. [2020-12-22 13:05:36,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:05:36,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4234 transitions. [2020-12-22 13:05:36,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 13:05:36,164 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:36,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:36,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 13:05:36,166 INFO L429 AbstractCegarLoop]: === Iteration 6 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:36,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:36,167 INFO L82 PathProgramCache]: Analyzing trace with hash -51816062, now seen corresponding path program 1 times [2020-12-22 13:05:36,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:36,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776920519] [2020-12-22 13:05:36,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:05:36,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776920519] [2020-12-22 13:05:36,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:05:36,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:05:36,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880821292] [2020-12-22 13:05:36,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:05:36,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:05:36,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:05:36,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:05:36,511 INFO L87 Difference]: Start difference. First operand 3160 states and 4234 transitions. Second operand 3 states. [2020-12-22 13:05:36,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:05:36,659 INFO L93 Difference]: Finished difference Result 6306 states and 8452 transitions. [2020-12-22 13:05:36,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:05:36,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-12-22 13:05:36,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:05:36,684 INFO L225 Difference]: With dead ends: 6306 [2020-12-22 13:05:36,685 INFO L226 Difference]: Without dead ends: 3162 [2020-12-22 13:05:36,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:05:36,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2020-12-22 13:05:36,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3161. [2020-12-22 13:05:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3161 states. [2020-12-22 13:05:36,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3161 states to 3161 states and 4235 transitions. [2020-12-22 13:05:36,844 INFO L78 Accepts]: Start accepts. Automaton has 3161 states and 4235 transitions. Word has length 35 [2020-12-22 13:05:36,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:05:36,844 INFO L481 AbstractCegarLoop]: Abstraction has 3161 states and 4235 transitions. [2020-12-22 13:05:36,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:05:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3161 states and 4235 transitions. [2020-12-22 13:05:36,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 13:05:36,849 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:36,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:36,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 13:05:36,850 INFO L429 AbstractCegarLoop]: === Iteration 7 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:36,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:36,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1856353438, now seen corresponding path program 1 times [2020-12-22 13:05:36,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:36,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030964022] [2020-12-22 13:05:36,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:05:37,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030964022] [2020-12-22 13:05:37,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650508317] [2020-12-22 13:05:37,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:05:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:40,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 3587 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 13:05:40,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:05:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 13:05:40,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 13:05:40,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 13:05:40,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445121999] [2020-12-22 13:05:40,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:05:40,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:05:40,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:05:40,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:05:40,138 INFO L87 Difference]: Start difference. First operand 3161 states and 4235 transitions. Second operand 3 states. [2020-12-22 13:05:42,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:05:42,604 INFO L93 Difference]: Finished difference Result 6178 states and 8312 transitions. [2020-12-22 13:05:42,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:05:42,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-22 13:05:42,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:05:42,626 INFO L225 Difference]: With dead ends: 6178 [2020-12-22 13:05:42,626 INFO L226 Difference]: Without dead ends: 3161 [2020-12-22 13:05:42,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:05:42,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2020-12-22 13:05:42,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 3141. [2020-12-22 13:05:42,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3141 states. [2020-12-22 13:05:42,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 4137 transitions. [2020-12-22 13:05:42,782 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 4137 transitions. Word has length 37 [2020-12-22 13:05:42,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:05:42,782 INFO L481 AbstractCegarLoop]: Abstraction has 3141 states and 4137 transitions. [2020-12-22 13:05:42,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:05:42,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 4137 transitions. [2020-12-22 13:05:42,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 13:05:42,784 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:42,784 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:42,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-22 13:05:42,998 INFO L429 AbstractCegarLoop]: === Iteration 8 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:42,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:42,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1469233975, now seen corresponding path program 1 times [2020-12-22 13:05:42,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:43,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156079328] [2020-12-22 13:05:43,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:05:43,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156079328] [2020-12-22 13:05:43,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768687089] [2020-12-22 13:05:43,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:05:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:46,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 3649 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 13:05:46,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:05:46,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:05:46,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:05:46,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 13:05:46,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094498568] [2020-12-22 13:05:46,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:05:46,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:05:46,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:05:46,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:05:46,365 INFO L87 Difference]: Start difference. First operand 3141 states and 4137 transitions. Second operand 5 states. [2020-12-22 13:05:46,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:05:46,594 INFO L93 Difference]: Finished difference Result 6268 states and 8258 transitions. [2020-12-22 13:05:46,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:05:46,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-12-22 13:05:46,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:05:46,617 INFO L225 Difference]: With dead ends: 6268 [2020-12-22 13:05:46,617 INFO L226 Difference]: Without dead ends: 3144 [2020-12-22 13:05:46,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:05:46,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2020-12-22 13:05:46,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3143. [2020-12-22 13:05:46,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3143 states. [2020-12-22 13:05:46,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 4139 transitions. [2020-12-22 13:05:46,815 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 4139 transitions. Word has length 41 [2020-12-22 13:05:46,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:05:46,815 INFO L481 AbstractCegarLoop]: Abstraction has 3143 states and 4139 transitions. [2020-12-22 13:05:46,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:05:46,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 4139 transitions. [2020-12-22 13:05:46,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 13:05:46,817 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:46,817 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:47,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:05:47,031 INFO L429 AbstractCegarLoop]: === Iteration 9 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:47,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:47,032 INFO L82 PathProgramCache]: Analyzing trace with hash 747458899, now seen corresponding path program 2 times [2020-12-22 13:05:47,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:47,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607967871] [2020-12-22 13:05:47,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:47,961 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:05:47,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607967871] [2020-12-22 13:05:47,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227262847] [2020-12-22 13:05:47,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:05:50,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 13:05:50,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 13:05:50,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 3550 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 13:05:50,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:05:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 13:05:50,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 13:05:50,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2020-12-22 13:05:50,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429028089] [2020-12-22 13:05:50,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:05:50,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:05:50,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:05:50,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:05:50,793 INFO L87 Difference]: Start difference. First operand 3143 states and 4139 transitions. Second operand 5 states. [2020-12-22 13:05:53,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:05:53,071 INFO L93 Difference]: Finished difference Result 6142 states and 8095 transitions. [2020-12-22 13:05:53,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:05:53,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-12-22 13:05:53,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:05:53,095 INFO L225 Difference]: With dead ends: 6142 [2020-12-22 13:05:53,095 INFO L226 Difference]: Without dead ends: 3137 [2020-12-22 13:05:53,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-12-22 13:05:53,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2020-12-22 13:05:53,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 3137. [2020-12-22 13:05:53,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3137 states. [2020-12-22 13:05:53,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 4129 transitions. [2020-12-22 13:05:53,261 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 4129 transitions. Word has length 43 [2020-12-22 13:05:53,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:05:53,262 INFO L481 AbstractCegarLoop]: Abstraction has 3137 states and 4129 transitions. [2020-12-22 13:05:53,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:05:53,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 4129 transitions. [2020-12-22 13:05:53,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 13:05:53,263 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:53,264 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:53,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:05:53,479 INFO L429 AbstractCegarLoop]: === Iteration 10 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:53,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:53,480 INFO L82 PathProgramCache]: Analyzing trace with hash -352631159, now seen corresponding path program 1 times [2020-12-22 13:05:53,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:53,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394449342] [2020-12-22 13:05:53,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:54,675 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:05:54,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394449342] [2020-12-22 13:05:54,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123810698] [2020-12-22 13:05:54,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:05:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:57,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 3892 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 13:05:57,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:05:57,568 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:05:57,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:05:57,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-22 13:05:57,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174954295] [2020-12-22 13:05:57,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:05:57,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:05:57,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:05:57,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:05:57,572 INFO L87 Difference]: Start difference. First operand 3137 states and 4129 transitions. Second operand 6 states. [2020-12-22 13:05:57,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:05:57,745 INFO L93 Difference]: Finished difference Result 6258 states and 8240 transitions. [2020-12-22 13:05:57,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:05:57,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-12-22 13:05:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:05:57,770 INFO L225 Difference]: With dead ends: 6258 [2020-12-22 13:05:57,770 INFO L226 Difference]: Without dead ends: 3140 [2020-12-22 13:05:57,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:05:57,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2020-12-22 13:05:57,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3139. [2020-12-22 13:05:57,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3139 states. [2020-12-22 13:05:57,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 4131 transitions. [2020-12-22 13:05:57,917 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 4131 transitions. Word has length 55 [2020-12-22 13:05:57,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:05:57,917 INFO L481 AbstractCegarLoop]: Abstraction has 3139 states and 4131 transitions. [2020-12-22 13:05:57,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 13:05:57,917 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 4131 transitions. [2020-12-22 13:05:57,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 13:05:57,919 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:05:57,919 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:05:58,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:05:58,134 INFO L429 AbstractCegarLoop]: === Iteration 11 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:05:58,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:05:58,135 INFO L82 PathProgramCache]: Analyzing trace with hash -424215643, now seen corresponding path program 2 times [2020-12-22 13:05:58,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:05:58,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019933927] [2020-12-22 13:05:58,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:05:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:05:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:05:59,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019933927] [2020-12-22 13:05:59,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722316513] [2020-12-22 13:05:59,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:06:01,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 13:06:01,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 13:06:01,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 3787 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 13:06:01,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:06:02,037 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-22 13:06:02,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 13:06:02,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-12-22 13:06:02,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255268771] [2020-12-22 13:06:02,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:06:02,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:02,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:06:02,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 13:06:02,040 INFO L87 Difference]: Start difference. First operand 3139 states and 4131 transitions. Second operand 5 states. [2020-12-22 13:06:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:04,297 INFO L93 Difference]: Finished difference Result 6141 states and 8090 transitions. [2020-12-22 13:06:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:06:04,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-12-22 13:06:04,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:04,323 INFO L225 Difference]: With dead ends: 6141 [2020-12-22 13:06:04,323 INFO L226 Difference]: Without dead ends: 3139 [2020-12-22 13:06:04,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-12-22 13:06:04,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2020-12-22 13:06:04,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 3139. [2020-12-22 13:06:04,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3139 states. [2020-12-22 13:06:04,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 4130 transitions. [2020-12-22 13:06:04,462 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 4130 transitions. Word has length 57 [2020-12-22 13:06:04,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:04,463 INFO L481 AbstractCegarLoop]: Abstraction has 3139 states and 4130 transitions. [2020-12-22 13:06:04,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:06:04,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 4130 transitions. [2020-12-22 13:06:04,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 13:06:04,464 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:04,465 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:06:04,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 13:06:04,679 INFO L429 AbstractCegarLoop]: === Iteration 12 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:04,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:04,680 INFO L82 PathProgramCache]: Analyzing trace with hash -328698632, now seen corresponding path program 1 times [2020-12-22 13:06:04,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:04,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681641409] [2020-12-22 13:06:04,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 13:06:05,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681641409] [2020-12-22 13:06:05,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:06:05,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:06:05,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375923377] [2020-12-22 13:06:05,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:06:05,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:05,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:06:05,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:05,337 INFO L87 Difference]: Start difference. First operand 3139 states and 4130 transitions. Second operand 3 states. [2020-12-22 13:06:07,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:07,745 INFO L93 Difference]: Finished difference Result 3139 states and 4130 transitions. [2020-12-22 13:06:07,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:06:07,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-12-22 13:06:07,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:07,760 INFO L225 Difference]: With dead ends: 3139 [2020-12-22 13:06:07,760 INFO L226 Difference]: Without dead ends: 3094 [2020-12-22 13:06:07,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:06:07,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2020-12-22 13:06:07,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3094. [2020-12-22 13:06:07,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3094 states. [2020-12-22 13:06:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 4070 transitions. [2020-12-22 13:06:07,893 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 4070 transitions. Word has length 57 [2020-12-22 13:06:07,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:07,893 INFO L481 AbstractCegarLoop]: Abstraction has 3094 states and 4070 transitions. [2020-12-22 13:06:07,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:06:07,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 4070 transitions. [2020-12-22 13:06:07,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-22 13:06:07,895 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:07,895 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:06:07,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 13:06:07,896 INFO L429 AbstractCegarLoop]: === Iteration 13 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:07,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:07,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1450656532, now seen corresponding path program 1 times [2020-12-22 13:06:07,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:07,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874951339] [2020-12-22 13:06:07,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:09,139 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:06:09,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874951339] [2020-12-22 13:06:09,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198299338] [2020-12-22 13:06:09,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:06:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:11,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 3949 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 13:06:11,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:06:12,044 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:06:12,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:06:12,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-22 13:06:12,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918166668] [2020-12-22 13:06:12,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 13:06:12,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:12,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 13:06:12,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 13:06:12,047 INFO L87 Difference]: Start difference. First operand 3094 states and 4070 transitions. Second operand 7 states. [2020-12-22 13:06:12,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:12,230 INFO L93 Difference]: Finished difference Result 6170 states and 8120 transitions. [2020-12-22 13:06:12,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 13:06:12,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-12-22 13:06:12,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:12,245 INFO L225 Difference]: With dead ends: 6170 [2020-12-22 13:06:12,246 INFO L226 Difference]: Without dead ends: 3097 [2020-12-22 13:06:12,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 13:06:12,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2020-12-22 13:06:12,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 3096. [2020-12-22 13:06:12,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3096 states. [2020-12-22 13:06:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4072 transitions. [2020-12-22 13:06:12,391 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4072 transitions. Word has length 62 [2020-12-22 13:06:12,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:12,392 INFO L481 AbstractCegarLoop]: Abstraction has 3096 states and 4072 transitions. [2020-12-22 13:06:12,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 13:06:12,393 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4072 transitions. [2020-12-22 13:06:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 13:06:12,394 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:12,394 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:06:12,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:06:12,608 INFO L429 AbstractCegarLoop]: === Iteration 14 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:12,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:12,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1496821680, now seen corresponding path program 2 times [2020-12-22 13:06:12,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:12,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658378590] [2020-12-22 13:06:12,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:06:13,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658378590] [2020-12-22 13:06:13,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865593406] [2020-12-22 13:06:13,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:06:16,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 13:06:16,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 13:06:16,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 3838 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 13:06:16,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:06:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-22 13:06:16,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 13:06:16,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2020-12-22 13:06:16,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933326792] [2020-12-22 13:06:16,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 13:06:16,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:16,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 13:06:16,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-12-22 13:06:16,608 INFO L87 Difference]: Start difference. First operand 3096 states and 4072 transitions. Second operand 7 states. [2020-12-22 13:06:18,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:18,947 INFO L93 Difference]: Finished difference Result 6057 states and 7975 transitions. [2020-12-22 13:06:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 13:06:18,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-12-22 13:06:18,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:18,965 INFO L225 Difference]: With dead ends: 6057 [2020-12-22 13:06:18,965 INFO L226 Difference]: Without dead ends: 3096 [2020-12-22 13:06:18,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-12-22 13:06:18,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2020-12-22 13:06:19,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 3096. [2020-12-22 13:06:19,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3096 states. [2020-12-22 13:06:19,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4071 transitions. [2020-12-22 13:06:19,121 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4071 transitions. Word has length 64 [2020-12-22 13:06:19,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:19,121 INFO L481 AbstractCegarLoop]: Abstraction has 3096 states and 4071 transitions. [2020-12-22 13:06:19,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 13:06:19,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4071 transitions. [2020-12-22 13:06:19,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 13:06:19,123 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:19,124 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:06:19,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-22 13:06:19,338 INFO L429 AbstractCegarLoop]: === Iteration 15 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:19,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:19,339 INFO L82 PathProgramCache]: Analyzing trace with hash 516535348, now seen corresponding path program 1 times [2020-12-22 13:06:19,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:19,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200226806] [2020-12-22 13:06:19,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:06:20,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200226806] [2020-12-22 13:06:20,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385541650] [2020-12-22 13:06:20,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:06:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:23,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 3983 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 13:06:23,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:06:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:06:23,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:06:23,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-22 13:06:23,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551439841] [2020-12-22 13:06:23,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 13:06:23,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:06:23,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 13:06:23,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:06:23,232 INFO L87 Difference]: Start difference. First operand 3096 states and 4071 transitions. Second operand 8 states. [2020-12-22 13:06:23,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:06:23,415 INFO L93 Difference]: Finished difference Result 6172 states and 8120 transitions. [2020-12-22 13:06:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 13:06:23,416 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-12-22 13:06:23,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:06:23,430 INFO L225 Difference]: With dead ends: 6172 [2020-12-22 13:06:23,431 INFO L226 Difference]: Without dead ends: 3099 [2020-12-22 13:06:23,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:06:23,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2020-12-22 13:06:23,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 3098. [2020-12-22 13:06:23,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3098 states. [2020-12-22 13:06:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 4073 transitions. [2020-12-22 13:06:23,580 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 4073 transitions. Word has length 67 [2020-12-22 13:06:23,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:06:23,580 INFO L481 AbstractCegarLoop]: Abstraction has 3098 states and 4073 transitions. [2020-12-22 13:06:23,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 13:06:23,580 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 4073 transitions. [2020-12-22 13:06:23,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 13:06:23,582 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:06:23,582 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:06:23,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-22 13:06:23,783 INFO L429 AbstractCegarLoop]: === Iteration 16 === [serial_port_dtr_rtsErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_port_dtr_rtsErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_cleanupErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr1ASSERT_VIOLATIONERROR_FUNCTION, destroy_serialErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr8ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr6ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr10ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr9ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr7ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr0ASSERT_VIOLATIONERROR_FUNCTION, serial_chars_in_bufferErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr3ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr4ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr6ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr5ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr2ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION, usb_serial_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:06:23,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:06:23,784 INFO L82 PathProgramCache]: Analyzing trace with hash 334667600, now seen corresponding path program 2 times [2020-12-22 13:06:23,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:06:23,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339193112] [2020-12-22 13:06:23,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:06:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:06:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:06:24,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339193112] [2020-12-22 13:06:24,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903054879] [2020-12-22 13:06:24,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true