java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 12:13:39,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 12:13:39,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 12:13:39,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 12:13:39,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 12:13:39,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 12:13:39,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 12:13:39,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 12:13:39,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 12:13:39,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 12:13:39,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 12:13:39,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 12:13:39,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 12:13:39,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 12:13:39,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 12:13:39,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 12:13:39,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 12:13:39,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 12:13:39,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 12:13:39,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 12:13:39,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 12:13:39,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 12:13:39,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 12:13:39,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 12:13:39,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 12:13:39,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 12:13:39,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 12:13:39,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 12:13:39,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 12:13:39,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 12:13:39,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 12:13:39,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 12:13:39,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 12:13:39,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 12:13:39,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 12:13:39,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 12:13:39,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 12:13:39,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 12:13:39,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 12:13:39,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 12:13:39,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 12:13:39,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 12:13:39,145 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 12:13:39,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 12:13:39,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 12:13:39,146 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 12:13:39,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 12:13:39,150 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 12:13:39,150 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 12:13:39,151 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 12:13:39,151 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 12:13:39,151 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 12:13:39,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 12:13:39,152 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 12:13:39,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 12:13:39,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 12:13:39,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 12:13:39,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 12:13:39,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 12:13:39,154 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 12:13:39,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 12:13:39,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 12:13:39,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 12:13:39,156 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 12:13:39,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 12:13:39,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 12:13:39,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 12:13:39,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 12:13:39,158 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 12:13:39,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 12:13:39,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 12:13:39,158 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 12:13:39,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 12:13:39,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 12:13:39,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 12:13:39,217 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 12:13:39,217 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 12:13:39,218 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i [2019-09-10 12:13:39,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3273e20ce/b73c302ec85d4cb79c92db3038702d1f/FLAG5ebfd4a4b [2019-09-10 12:13:40,060 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 12:13:40,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i [2019-09-10 12:13:40,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3273e20ce/b73c302ec85d4cb79c92db3038702d1f/FLAG5ebfd4a4b [2019-09-10 12:13:40,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3273e20ce/b73c302ec85d4cb79c92db3038702d1f [2019-09-10 12:13:40,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 12:13:40,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 12:13:40,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 12:13:40,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 12:13:40,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 12:13:40,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:13:40" (1/1) ... [2019-09-10 12:13:40,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f49130d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:40, skipping insertion in model container [2019-09-10 12:13:40,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:13:40" (1/1) ... [2019-09-10 12:13:40,159 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 12:13:40,257 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 12:13:41,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 12:13:41,483 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 12:13:41,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 12:13:41,814 INFO L192 MainTranslator]: Completed translation [2019-09-10 12:13:41,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:41 WrapperNode [2019-09-10 12:13:41,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 12:13:41,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 12:13:41,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 12:13:41,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 12:13:41,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:41" (1/1) ... [2019-09-10 12:13:41,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:41" (1/1) ... [2019-09-10 12:13:41,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:41" (1/1) ... [2019-09-10 12:13:41,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:41" (1/1) ... [2019-09-10 12:13:41,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:41" (1/1) ... [2019-09-10 12:13:41,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:41" (1/1) ... [2019-09-10 12:13:41,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:41" (1/1) ... [2019-09-10 12:13:42,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 12:13:42,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 12:13:42,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 12:13:42,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 12:13:42,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:41" (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 [2019-09-10 12:13:42,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 12:13:42,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 12:13:42,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-09-10 12:13:42,084 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-09-10 12:13:42,084 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-09-10 12:13:42,085 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2019-09-10 12:13:42,085 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-10 12:13:42,085 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-10 12:13:42,085 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-09-10 12:13:42,085 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-09-10 12:13:42,086 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2019-09-10 12:13:42,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 12:13:42,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 12:13:42,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-10 12:13:42,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-10 12:13:42,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 12:13:42,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 12:13:42,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 12:13:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 12:13:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 12:13:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-10 12:13:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_select_wdt_out [2019-09-10 12:13:42,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_swc [2019-09-10 12:13:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_get_swc_base_addr [2019-09-10 12:13:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_swc_bank3 [2019-09-10 12:13:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_programm_wdto [2019-09-10 12:13:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_wden [2019-09-10 12:13:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_sw_wd_tren [2019-09-10 12:13:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable_sw_wd_tren [2019-09-10 12:13:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_sw_wd_trg [2019-09-10 12:13:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable_sw_wd_trg [2019-09-10 12:13:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable [2019-09-10 12:13:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable [2019-09-10 12:13:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_refresh [2019-09-10 12:13:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_open [2019-09-10 12:13:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_release [2019-09-10 12:13:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_status [2019-09-10 12:13:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_write [2019-09-10 12:13:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_ioctl [2019-09-10 12:13:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_notify_sys [2019-09-10 12:13:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_init [2019-09-10 12:13:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_exit [2019-09-10 12:13:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-09-10 12:13:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 12:13:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_5 [2019-09-10 12:13:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonseekable_open_6 [2019-09-10 12:13:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_7 [2019-09-10 12:13:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_8 [2019-09-10 12:13:42,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_9 [2019-09-10 12:13:42,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 12:13:42,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-10 12:13:42,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-10 12:13:42,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-10 12:13:42,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-10 12:13:42,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-10 12:13:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-10 12:13:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-10 12:13:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-10 12:13:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-10 12:13:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 12:13:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-09-10 12:13:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-09-10 12:13:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-09-10 12:13:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-09-10 12:13:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-10 12:13:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-10 12:13:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-10 12:13:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 12:13:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-09-10 12:13:42,098 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-09-10 12:13:42,098 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2019-09-10 12:13:42,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-10 12:13:42,098 INFO L138 BoogieDeclarations]: Found implementation of procedure register_reboot_notifier [2019-09-10 12:13:42,098 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2019-09-10 12:13:42,099 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 12:13:42,099 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 12:13:42,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 12:13:42,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 12:13:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 12:13:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 12:13:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-09-10 12:13:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-09-10 12:13:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-10 12:13:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-09-10 12:13:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 12:13:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2019-09-10 12:13:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-09-10 12:13:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 12:13:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-10 12:13:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-10 12:13:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-10 12:13:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-10 12:13:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-09-10 12:13:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-09-10 12:13:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-09-10 12:13:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-09-10 12:13:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2019-09-10 12:13:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_5 [2019-09-10 12:13:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-10 12:13:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 12:13:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 12:13:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 12:13:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 12:13:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 12:13:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 12:13:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 12:13:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 12:13:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 12:13:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 12:13:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-10 12:13:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-10 12:13:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 12:13:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 12:13:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 12:13:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 12:13:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 12:13:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-09-10 12:13:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-09-10 12:13:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_7 [2019-09-10 12:13:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-09-10 12:13:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_8 [2019-09-10 12:13:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_9 [2019-09-10 12:13:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2019-09-10 12:13:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonseekable_open_6 [2019-09-10 12:13:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure register_reboot_notifier [2019-09-10 12:13:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2019-09-10 12:13:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-10 12:13:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-09-10 12:13:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-10 12:13:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 12:13:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_select_wdt_out [2019-09-10 12:13:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_swc [2019-09-10 12:13:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_get_swc_base_addr [2019-09-10 12:13:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_swc_bank3 [2019-09-10 12:13:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_programm_wdto [2019-09-10 12:13:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_wden [2019-09-10 12:13:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_sw_wd_tren [2019-09-10 12:13:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable_sw_wd_tren [2019-09-10 12:13:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_sw_wd_trg [2019-09-10 12:13:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable_sw_wd_trg [2019-09-10 12:13:42,118 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable [2019-09-10 12:13:42,118 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable [2019-09-10 12:13:42,119 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_refresh [2019-09-10 12:13:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_open [2019-09-10 12:13:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_release [2019-09-10 12:13:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_status [2019-09-10 12:13:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_write [2019-09-10 12:13:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_ioctl [2019-09-10 12:13:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 12:13:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 12:13:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 12:13:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_notify_sys [2019-09-10 12:13:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_init [2019-09-10 12:13:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_exit [2019-09-10 12:13:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 12:13:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 12:13:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 12:13:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 12:13:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 12:13:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-10 12:13:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-10 12:13:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-10 12:13:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-10 12:13:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-10 12:13:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-10 12:13:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-10 12:13:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-10 12:13:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 12:13:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-10 12:13:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 12:13:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 12:13:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 12:13:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 12:13:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 12:13:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 12:13:42,710 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 12:13:43,448 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-10 12:13:46,023 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 12:13:46,023 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-10 12:13:46,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:13:46 BoogieIcfgContainer [2019-09-10 12:13:46,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 12:13:46,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 12:13:46,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 12:13:46,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 12:13:46,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:13:40" (1/3) ... [2019-09-10 12:13:46,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50efd24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:13:46, skipping insertion in model container [2019-09-10 12:13:46,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:41" (2/3) ... [2019-09-10 12:13:46,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50efd24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:13:46, skipping insertion in model container [2019-09-10 12:13:46,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:13:46" (3/3) ... [2019-09-10 12:13:46,033 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i [2019-09-10 12:13:46,043 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 12:13:46,060 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 12:13:46,079 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 12:13:46,112 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 12:13:46,113 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 12:13:46,113 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 12:13:46,113 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 12:13:46,113 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 12:13:46,113 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 12:13:46,113 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 12:13:46,113 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 12:13:46,153 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states. [2019-09-10 12:13:46,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-09-10 12:13:46,187 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:13:46,189 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 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] [2019-09-10 12:13:46,191 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:13:46,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:13:46,197 INFO L82 PathProgramCache]: Analyzing trace with hash 2060104884, now seen corresponding path program 1 times [2019-09-10 12:13:46,200 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:13:46,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:46,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:13:46,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:46,269 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:13:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:13:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2019-09-10 12:13:46,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:13:46,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:13:46,913 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:13:46,920 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:13:46,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:13:46,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:13:46,941 INFO L87 Difference]: Start difference. First operand 488 states. Second operand 3 states. [2019-09-10 12:13:47,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:13:47,095 INFO L93 Difference]: Finished difference Result 910 states and 1195 transitions. [2019-09-10 12:13:47,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:13:47,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-09-10 12:13:47,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:13:47,133 INFO L225 Difference]: With dead ends: 910 [2019-09-10 12:13:47,133 INFO L226 Difference]: Without dead ends: 873 [2019-09-10 12:13:47,138 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:13:47,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2019-09-10 12:13:47,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2019-09-10 12:13:47,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2019-09-10 12:13:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1142 transitions. [2019-09-10 12:13:47,339 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1142 transitions. Word has length 148 [2019-09-10 12:13:47,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:13:47,341 INFO L475 AbstractCegarLoop]: Abstraction has 873 states and 1142 transitions. [2019-09-10 12:13:47,341 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:13:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1142 transitions. [2019-09-10 12:13:47,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2019-09-10 12:13:47,361 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:13:47,361 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 12:13:47,362 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:13:47,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:13:47,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1632961415, now seen corresponding path program 1 times [2019-09-10 12:13:47,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:13:47,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:47,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:13:47,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:47,366 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:13:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:13:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2019-09-10 12:13:47,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:13:47,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:13:47,761 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:13:47,767 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:13:47,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:13:47,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:13:47,768 INFO L87 Difference]: Start difference. First operand 873 states and 1142 transitions. Second operand 3 states. [2019-09-10 12:13:47,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:13:47,903 INFO L93 Difference]: Finished difference Result 1158 states and 1476 transitions. [2019-09-10 12:13:47,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:13:47,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 375 [2019-09-10 12:13:47,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:13:47,917 INFO L225 Difference]: With dead ends: 1158 [2019-09-10 12:13:47,918 INFO L226 Difference]: Without dead ends: 1158 [2019-09-10 12:13:47,923 INFO L628 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 [2019-09-10 12:13:47,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-09-10 12:13:47,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1126. [2019-09-10 12:13:47,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2019-09-10 12:13:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1441 transitions. [2019-09-10 12:13:48,001 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1441 transitions. Word has length 375 [2019-09-10 12:13:48,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:13:48,002 INFO L475 AbstractCegarLoop]: Abstraction has 1126 states and 1441 transitions. [2019-09-10 12:13:48,002 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:13:48,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1441 transitions. [2019-09-10 12:13:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2019-09-10 12:13:48,015 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:13:48,016 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 12:13:48,016 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:13:48,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:13:48,017 INFO L82 PathProgramCache]: Analyzing trace with hash 580460837, now seen corresponding path program 1 times [2019-09-10 12:13:48,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:13:48,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:48,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:13:48,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:48,020 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:13:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:13:48,486 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2019-09-10 12:13:48,486 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 12:13:48,487 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 12:13:48,488 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 455 with the following transitions: [2019-09-10 12:13:48,490 INFO L207 CegarAbsIntRunner]: [17], [18], [24], [25], [26], [27], [28], [30], [32], [33], [35], [37], [38], [39], [40], [41], [43], [45], [55], [57], [89], [91], [92], [93], [94], [95], [98], [102], [136], [181], [187], [188], [189], [191], [193], [201], [203], [204], [205], [206], [207], [208], [209], [210], [212], [213], [225], [226], [228], [230], [233], [235], [237], [239], [241], [244], [246], [248], [250], [252], [254], [256], [289], [292], [295], [307], [310], [313], [315], [320], [324], [326], [345], [348], [351], [372], [385], [398], [401], [404], [406], [409], [477], [478], [479], [481], [484], [485], [487], [490], [495], [498], [518], [520], [521], [522], [523], [534], [535], [536], [537], [553], [555], [557], [562], [564], [566], [567], [766], [769], [770], [772], [777], [778], [780], [781], [799], [801], [802], [803], [804], [806], [807], [808], [810], [812], [815], [829], [831], [835], [838], [844], [846], [847], [851], [853], [868], [869], [870], [871], [872], [873], [874], [875], [876], [877], [878], [879], [892], [893], [904], [905], [920], [921], [922], [923], [936], [937], [938], [939], [940], [941], [942], [943], [944], [945], [946], [947], [948], [949], [950], [951], [952], [953], [954], [955], [956], [957], [958], [959], [960], [961], [962], [963], [964], [965], [966], [967], [968], [969], [970], [971], [972], [973], [974], [975], [976], [977], [978], [979], [980], [981], [982], [983], [990], [991], [1002], [1003], [1010], [1016], [1017], [1018], [1019], [1020], [1021], [1036], [1037], [1038], [1039], [1062], [1063], [1064], [1065], [1066], [1067], [1068], [1069], [1092], [1093], [1094], [1095], [1096], [1097], [1106], [1107], [1108], [1109], [1110], [1111], [1112], [1113], [1114], [1118], [1119], [1120], [1121], [1122], [1123], [1124], [1125], [1126], [1127], [1128], [1130], [1131] [2019-09-10 12:13:48,550 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 12:13:48,550 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 12:13:48,631 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 12:13:48,633 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 95 root evaluator evaluations with a maximum evaluation depth of 0. Performed 95 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 178 variables. [2019-09-10 12:13:48,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:13:48,638 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 12:13:48,761 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 12:13:48,762 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 12:13:48,773 INFO L420 sIntCurrentIteration]: We unified 453 AI predicates to 453 [2019-09-10 12:13:48,773 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 12:13:48,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 12:13:48,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-10 12:13:48,774 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:13:48,775 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 12:13:48,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 12:13:48,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 12:13:48,776 INFO L87 Difference]: Start difference. First operand 1126 states and 1441 transitions. Second operand 2 states. [2019-09-10 12:13:48,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:13:48,776 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 12:13:48,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 12:13:48,777 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 454 [2019-09-10 12:13:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:13:48,777 INFO L225 Difference]: With dead ends: 2 [2019-09-10 12:13:48,777 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 12:13:48,778 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 12:13:48,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 12:13:48,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 12:13:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 12:13:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 12:13:48,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 454 [2019-09-10 12:13:48,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:13:48,779 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 12:13:48,779 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 12:13:48,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 12:13:48,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 12:13:48,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:13:48 BoogieIcfgContainer [2019-09-10 12:13:48,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 12:13:48,789 INFO L168 Benchmark]: Toolchain (without parser) took 8648.55 ms. Allocated memory was 133.2 MB in the beginning and 340.8 MB in the end (delta: 207.6 MB). Free memory was 82.4 MB in the beginning and 121.8 MB in the end (delta: -39.4 MB). Peak memory consumption was 168.3 MB. Max. memory is 7.1 GB. [2019-09-10 12:13:48,790 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-10 12:13:48,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1677.48 ms. Allocated memory was 133.2 MB in the beginning and 203.9 MB in the end (delta: 70.8 MB). Free memory was 82.2 MB in the beginning and 117.8 MB in the end (delta: -35.6 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2019-09-10 12:13:48,793 INFO L168 Benchmark]: Boogie Preprocessor took 187.19 ms. Allocated memory is still 203.9 MB. Free memory was 117.8 MB in the beginning and 110.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 7.1 GB. [2019-09-10 12:13:48,794 INFO L168 Benchmark]: RCFGBuilder took 4020.80 ms. Allocated memory was 203.9 MB in the beginning and 271.6 MB in the end (delta: 67.6 MB). Free memory was 110.9 MB in the beginning and 164.5 MB in the end (delta: -53.6 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. [2019-09-10 12:13:48,796 INFO L168 Benchmark]: TraceAbstraction took 2758.37 ms. Allocated memory was 271.6 MB in the beginning and 340.8 MB in the end (delta: 69.2 MB). Free memory was 164.5 MB in the beginning and 121.8 MB in the end (delta: 42.7 MB). Peak memory consumption was 111.9 MB. Max. memory is 7.1 GB. [2019-09-10 12:13:48,805 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1677.48 ms. Allocated memory was 133.2 MB in the beginning and 203.9 MB in the end (delta: 70.8 MB). Free memory was 82.2 MB in the beginning and 117.8 MB in the end (delta: -35.6 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 187.19 ms. Allocated memory is still 203.9 MB. Free memory was 117.8 MB in the beginning and 110.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4020.80 ms. Allocated memory was 203.9 MB in the beginning and 271.6 MB in the end (delta: 67.6 MB). Free memory was 110.9 MB in the beginning and 164.5 MB in the end (delta: -53.6 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2758.37 ms. Allocated memory was 271.6 MB in the beginning and 340.8 MB in the end (delta: 69.2 MB). Free memory was 164.5 MB in the beginning and 121.8 MB in the end (delta: 42.7 MB). Peak memory consumption was 111.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4117]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 78 procedures, 544 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 3 OverallIterations, 7 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1413 SDtfs, 816 SDslu, 1096 SDs, 0 SdLazy, 25 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 460 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1126occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.653421633554084 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 32 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 977 NumberOfCodeBlocks, 977 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 974 ConstructedInterpolants, 0 QuantifiedInterpolants, 393837 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1400/1402 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...