/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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:39:35,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:39:35,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:39:35,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:39:35,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:39:35,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:39:35,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:39:35,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:39:35,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:39:35,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:39:35,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:39:35,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:39:35,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:39:35,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:39:35,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:39:35,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:39:35,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:39:35,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:39:36,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:39:36,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:39:36,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:39:36,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:39:36,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:39:36,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:39:36,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:39:36,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:39:36,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:39:36,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:39:36,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:39:36,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:39:36,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:39:36,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:39:36,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:39:36,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:39:36,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:39:36,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:39:36,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:39:36,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:39:36,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:39:36,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:39:36,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:39:36,048 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:39:36,100 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:39:36,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:39:36,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:39:36,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:39:36,106 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:39:36,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:39:36,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:39:36,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:39:36,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:39:36,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:39:36,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:39:36,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:39:36,108 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:39:36,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:39:36,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:39:36,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:39:36,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:39:36,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:39:36,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:39:36,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:39:36,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:39:36,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:39:36,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:39:36,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:39:36,111 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:39:36,111 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:39:36,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:39:36,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:39:36,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:39:36,608 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:39:36,609 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:39:36,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2020-12-22 13:39:36,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9547de7a/e4c27f9bff474e43a09585b4a709c919/FLAGbdd215fc4 [2020-12-22 13:39:38,012 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:39:38,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2020-12-22 13:39:38,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9547de7a/e4c27f9bff474e43a09585b4a709c919/FLAGbdd215fc4 [2020-12-22 13:39:38,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9547de7a/e4c27f9bff474e43a09585b4a709c919 [2020-12-22 13:39:38,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:39:38,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:39:38,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:39:38,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:39:38,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:39:38,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:39:38" (1/1) ... [2020-12-22 13:39:38,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f59ca93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:38, skipping insertion in model container [2020-12-22 13:39:38,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:39:38" (1/1) ... [2020-12-22 13:39:38,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:39:38,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:39:39,033 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4050] [2020-12-22 13:39:39,033 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4051-4052] [2020-12-22 13:39:39,542 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i[126730,126743] [2020-12-22 13:39:41,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:39:41,564 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:39:41,730 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4050] [2020-12-22 13:39:41,731 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4051-4052] [2020-12-22 13:39:41,754 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i[126730,126743] [2020-12-22 13:39:42,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:39:43,113 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:39:43,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43 WrapperNode [2020-12-22 13:39:43,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:39:43,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:39:43,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:39:43,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:39:43,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (1/1) ... [2020-12-22 13:39:43,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (1/1) ... [2020-12-22 13:39:44,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:39:44,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:39:44,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:39:44,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:39:44,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (1/1) ... [2020-12-22 13:39:44,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (1/1) ... [2020-12-22 13:39:45,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (1/1) ... [2020-12-22 13:39:45,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (1/1) ... [2020-12-22 13:39:46,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (1/1) ... [2020-12-22 13:39:47,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (1/1) ... [2020-12-22 13:39:47,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (1/1) ... [2020-12-22 13:39:47,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:39:47,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:39:47,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:39:47,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:39:47,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (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 13:39:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_chars [2020-12-22 13:39:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_chars [2020-12-22 13:39:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_rx_chars [2020-12-22 13:39:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_rx_chars [2020-12-22 13:39:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_do_pm [2020-12-22 13:39:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_do_pm [2020-12-22 13:39:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure serial_dl_write [2020-12-22 13:39:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_dl_write [2020-12-22 13:39:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_start_tx [2020-12-22 13:39:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_start_tx [2020-12-22 13:39:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_16550a [2020-12-22 13:39:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_16550a [2020-12-22 13:39:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_tx_complete [2020-12-22 13:39:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_tx_complete [2020-12-22 13:39:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 13:39:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 13:39:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure serial_in [2020-12-22 13:39:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_in [2020-12-22 13:39:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_handle_irq [2020-12-22 13:39:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_handle_irq [2020-12-22 13:39:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:39:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure broken_efr [2020-12-22 13:39:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_efr [2020-12-22 13:39:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_modem_status [2020-12-22 13:39:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_modem_status [2020-12-22 13:39:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 13:39:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 13:39:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:39:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-12-22 13:39:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_dma [2020-12-22 13:39:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_dma [2020-12-22 13:39:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:39:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:39:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure disable_rsa [2020-12-22 13:39:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_rsa [2020-12-22 13:39:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure serial_out [2020-12-22 13:39:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_out [2020-12-22 13:39:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_termios [2020-12-22 13:39:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_termios [2020-12-22 13:39:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2020-12-22 13:39:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2020-12-22 13:39:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:39:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_in [2020-12-22 13:39:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_in [2020-12-22 13:39:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:39:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:39:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_pm [2020-12-22 13:39:47,839 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_pm [2020-12-22 13:39:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig [2020-12-22 13:39:47,839 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig [2020-12-22 13:39:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:39:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:39:47,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:39:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure uart_handle_break [2020-12-22 13:39:47,840 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_handle_break [2020-12-22 13:39:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure dma_async_issue_pending [2020-12-22 13:39:47,841 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_async_issue_pending [2020-12-22 13:39:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_config_port [2020-12-22 13:39:47,841 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_config_port [2020-12-22 13:39:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_shutdown [2020-12-22 13:39:47,841 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_shutdown [2020-12-22 13:39:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_has_efr [2020-12-22 13:39:47,842 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_has_efr [2020-12-22 13:39:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_rx_dma [2020-12-22 13:39:47,842 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_rx_dma [2020-12-22 13:39:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure size_fifo [2020-12-22 13:39:47,842 INFO L138 BoogieDeclarations]: Found implementation of procedure size_fifo [2020-12-22 13:39:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:39:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_sleep [2020-12-22 13:39:47,843 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_sleep [2020-12-22 13:39:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:39:47,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:39:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2020-12-22 13:39:47,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2020-12-22 13:42:26,765 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:42:26,765 INFO L299 CfgBuilder]: Removed 7609 assume(true) statements. [2020-12-22 13:42:26,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:42:26 BoogieIcfgContainer [2020-12-22 13:42:26,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:42:26,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:42:26,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:42:26,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:42:26,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:39:38" (1/3) ... [2020-12-22 13:42:26,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e823a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:42:26, skipping insertion in model container [2020-12-22 13:42:26,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:39:43" (2/3) ... [2020-12-22 13:42:26,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e823a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:42:26, skipping insertion in model container [2020-12-22 13:42:26,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:42:26" (3/3) ... [2020-12-22 13:42:26,790 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2020-12-22 13:42:26,798 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:42:26,809 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 13:42:26,833 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 13:42:26,899 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:42:26,899 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:42:26,899 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:42:26,899 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:42:26,900 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:42:26,900 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:42:26,900 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:42:26,901 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:42:27,087 INFO L276 IsEmpty]: Start isEmpty. Operand 10227 states. [2020-12-22 13:42:27,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-12-22 13:42:27,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:42:27,162 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:27,162 INFO L429 AbstractCegarLoop]: === Iteration 1 === [autoconfig_16550aErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, size_fifoErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:42:27,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:42:27,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1538672586, now seen corresponding path program 1 times [2020-12-22 13:42:27,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:42:27,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972928063] [2020-12-22 13:42:27,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:42:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:28,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-12-22 13:42:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:28,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-12-22 13:42:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:28,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-12-22 13:42:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:28,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-12-22 13:42:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:29,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-12-22 13:42:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:29,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-12-22 13:42:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:29,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-12-22 13:42:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:29,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-12-22 13:42:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:29,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-12-22 13:42:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:29,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-12-22 13:42:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:29,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-12-22 13:42:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:29,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-12-22 13:42:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-12-22 13:42:29,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972928063] [2020-12-22 13:42:29,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:42:29,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:42:29,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460791505] [2020-12-22 13:42:29,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:42:29,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:42:29,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:42:29,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:42:29,476 INFO L87 Difference]: Start difference. First operand 10227 states. Second operand 4 states.