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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:02:32,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:02:32,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:02:33,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:02:33,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:02:33,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:02:33,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:02:33,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:02:33,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:02:33,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:02:33,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:02:33,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:02:33,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:02:33,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:02:33,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:02:33,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:02:33,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:02:33,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:02:33,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:02:33,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:02:33,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:02:33,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:02:33,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:02:33,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:02:33,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:02:33,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:02:33,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:02:33,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:02:33,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:02:33,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:02:33,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:02:33,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:02:33,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:02:33,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:02:33,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:02:33,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:02:33,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:02:33,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:02:33,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:02:33,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:02:33,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:02:33,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:02:33,092 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:02:33,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:02:33,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:02:33,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:02:33,094 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:02:33,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:02:33,099 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:02:33,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:02:33,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:02:33,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:02:33,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:02:33,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:02:33,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:02:33,101 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:02:33,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:02:33,101 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:02:33,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:02:33,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:02:33,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:02:33,102 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:02:33,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:02:33,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:02:33,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:02:33,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:02:33,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:02:33,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:02:33,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:02:33,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:02:33,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:02:33,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:02:33,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:02:33,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:02:33,416 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:02:33,416 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:02:33,417 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2019-10-13 19:02:33,504 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b3c8f924/bba619ec63dc4b43af841bd0d93ea7af/FLAGf676359f0 [2019-10-13 19:02:34,299 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:02:34,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2019-10-13 19:02:34,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b3c8f924/bba619ec63dc4b43af841bd0d93ea7af/FLAGf676359f0 [2019-10-13 19:02:34,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b3c8f924/bba619ec63dc4b43af841bd0d93ea7af [2019-10-13 19:02:34,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:02:34,430 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:02:34,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:02:34,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:02:34,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:02:34,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:02:34" (1/1) ... [2019-10-13 19:02:34,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354e775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:34, skipping insertion in model container [2019-10-13 19:02:34,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:02:34" (1/1) ... [2019-10-13 19:02:34,448 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:02:34,564 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:02:35,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:02:35,640 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:02:35,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:02:35,995 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:02:35,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35 WrapperNode [2019-10-13 19:02:35,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:02:35,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:02:35,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:02:35,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:02:36,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35" (1/1) ... [2019-10-13 19:02:36,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35" (1/1) ... [2019-10-13 19:02:36,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35" (1/1) ... [2019-10-13 19:02:36,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35" (1/1) ... [2019-10-13 19:02:36,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35" (1/1) ... [2019-10-13 19:02:36,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35" (1/1) ... [2019-10-13 19:02:36,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35" (1/1) ... [2019-10-13 19:02:36,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:02:36,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:02:36,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:02:36,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:02:36,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35" (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 [2019-10-13 19:02:36,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:02:36,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:02:36,334 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 19:02:36,334 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-13 19:02:36,334 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-13 19:02:36,335 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-13 19:02:36,335 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-13 19:02:36,335 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-13 19:02:36,337 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-13 19:02:36,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 19:02:36,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 19:02:36,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 19:02:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 19:02:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 19:02:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 19:02:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 19:02:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 19:02:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 19:02:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 19:02:36,341 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2019-10-13 19:02:36,341 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2019-10-13 19:02:36,341 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2019-10-13 19:02:36,342 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2019-10-13 19:02:36,342 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2019-10-13 19:02:36,342 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inw [2019-10-13 19:02:36,343 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outw [2019-10-13 19:02:36,343 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_update_timeout [2019-10-13 19:02:36,343 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_round_time [2019-10-13 19:02:36,344 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_keepalive [2019-10-13 19:02:36,344 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_start [2019-10-13 19:02:36,344 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_stop [2019-10-13 19:02:36,344 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_set_timeout [2019-10-13 19:02:36,345 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_get_status [2019-10-13 19:02:36,345 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_open [2019-10-13 19:02:36,345 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_release [2019-10-13 19:02:36,346 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_write [2019-10-13 19:02:36,346 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_ioctl [2019-10-13 19:02:36,346 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_notify_sys [2019-10-13 19:02:36,347 INFO L138 BoogieDeclarations]: Found implementation of procedure it87_wdt_init [2019-10-13 19:02:36,347 INFO L138 BoogieDeclarations]: Found implementation of procedure it87_wdt_exit [2019-10-13 19:02:36,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-10-13 19:02:36,348 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:02:36,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_5 [2019-10-13 19:02:36,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonseekable_open_6 [2019-10-13 19:02:36,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_7 [2019-10-13 19:02:36,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_8 [2019-10-13 19:02:36,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 19:02:36,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 19:02:36,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 19:02:36,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 19:02:36,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 19:02:36,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-13 19:02:36,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-13 19:02:36,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-13 19:02:36,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-13 19:02:36,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-13 19:02:36,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 19:02:36,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 19:02:36,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 19:02:36,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-13 19:02:36,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-13 19:02:36,353 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 19:02:36,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 19:02:36,354 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-10-13 19:02:36,354 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-10-13 19:02:36,355 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2019-10-13 19:02:36,355 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 19:02:36,355 INFO L138 BoogieDeclarations]: Found implementation of procedure register_reboot_notifier [2019-10-13 19:02:36,355 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2019-10-13 19:02:36,356 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 19:02:36,356 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 19:02:36,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 19:02:36,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 19:02:36,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:02:36,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 19:02:36,357 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 19:02:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-13 19:02:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-13 19:02:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-13 19:02:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-13 19:02:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:02:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 19:02:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 19:02:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 19:02:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-13 19:02:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-13 19:02:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-13 19:02:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-13 19:02:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_5 [2019-10-13 19:02:36,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-13 19:02:36,361 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:02:36,361 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 19:02:36,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:02:36,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 19:02:36,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 19:02:36,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:02:36,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 19:02:36,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:02:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 19:02:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 19:02:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 19:02:36,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 19:02:36,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 19:02:36,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 19:02:36,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 19:02:36,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 19:02:36,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 19:02:36,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-10-13 19:02:36,366 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2019-10-13 19:02:36,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonseekable_open_6 [2019-10-13 19:02:36,366 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-10-13 19:02:36,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_7 [2019-10-13 19:02:36,367 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-10-13 19:02:36,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_8 [2019-10-13 19:02:36,367 INFO L130 BoogieDeclarations]: Found specification of procedure register_reboot_notifier [2019-10-13 19:02:36,368 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2019-10-13 19:02:36,368 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 19:02:36,368 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 19:02:36,368 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 19:02:36,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:02:36,369 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2019-10-13 19:02:36,369 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2019-10-13 19:02:36,369 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2019-10-13 19:02:36,370 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2019-10-13 19:02:36,370 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2019-10-13 19:02:36,370 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inw [2019-10-13 19:02:36,370 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outw [2019-10-13 19:02:36,370 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_update_timeout [2019-10-13 19:02:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_round_time [2019-10-13 19:02:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_keepalive [2019-10-13 19:02:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_start [2019-10-13 19:02:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_stop [2019-10-13 19:02:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_set_timeout [2019-10-13 19:02:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_get_status [2019-10-13 19:02:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:02:36,373 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_open [2019-10-13 19:02:36,373 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_release [2019-10-13 19:02:36,373 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_write [2019-10-13 19:02:36,374 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_ioctl [2019-10-13 19:02:36,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:02:36,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:02:36,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:02:36,374 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_notify_sys [2019-10-13 19:02:36,375 INFO L130 BoogieDeclarations]: Found specification of procedure it87_wdt_init [2019-10-13 19:02:36,375 INFO L130 BoogieDeclarations]: Found specification of procedure it87_wdt_exit [2019-10-13 19:02:36,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 19:02:36,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 19:02:36,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:02:36,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 19:02:36,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 19:02:36,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 19:02:36,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 19:02:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 19:02:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-13 19:02:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-13 19:02:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-13 19:02:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-13 19:02:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 19:02:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 19:02:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:02:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 19:02:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:02:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:02:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 19:02:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 19:02:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:02:37,707 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 19:02:37,718 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-13 19:02:39,444 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:02:39,444 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:02:39,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:02:39 BoogieIcfgContainer [2019-10-13 19:02:39,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:02:39,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:02:39,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:02:39,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:02:39,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:02:34" (1/3) ... [2019-10-13 19:02:39,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f959233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:02:39, skipping insertion in model container [2019-10-13 19:02:39,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35" (2/3) ... [2019-10-13 19:02:39,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f959233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:02:39, skipping insertion in model container [2019-10-13 19:02:39,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:02:39" (3/3) ... [2019-10-13 19:02:39,454 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2019-10-13 19:02:39,464 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:02:39,474 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:02:39,486 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:02:39,517 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:02:39,517 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:02:39,517 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:02:39,517 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:02:39,517 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:02:39,518 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:02:39,518 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:02:39,518 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:02:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states. [2019-10-13 19:02:39,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:02:39,587 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:02:39,589 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1] [2019-10-13 19:02:39,592 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:02:39,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:02:39,599 INFO L82 PathProgramCache]: Analyzing trace with hash -960615019, now seen corresponding path program 1 times [2019-10-13 19:02:39,608 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:02:39,609 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369006046] [2019-10-13 19:02:39,609 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:02:39,609 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:02:39,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:02:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:40,846 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2019-10-13 19:02:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:41,324 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2019-10-13 19:02:41,325 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369006046] [2019-10-13 19:02:41,326 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:02:41,327 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:02:41,327 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360969504] [2019-10-13 19:02:41,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:02:41,334 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:02:41,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:02:41,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:02:41,352 INFO L87 Difference]: Start difference. First operand 665 states. Second operand 8 states. [2019-10-13 19:02:42,318 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2019-10-13 19:02:47,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:02:47,074 INFO L93 Difference]: Finished difference Result 706 states and 1012 transitions. [2019-10-13 19:02:47,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:02:47,082 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2019-10-13 19:02:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:02:47,116 INFO L225 Difference]: With dead ends: 706 [2019-10-13 19:02:47,116 INFO L226 Difference]: Without dead ends: 673 [2019-10-13 19:02:47,124 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:02:47,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2019-10-13 19:02:47,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 645. [2019-10-13 19:02:47,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2019-10-13 19:02:47,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 929 transitions. [2019-10-13 19:02:47,344 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 929 transitions. Word has length 150 [2019-10-13 19:02:47,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:02:47,345 INFO L462 AbstractCegarLoop]: Abstraction has 645 states and 929 transitions. [2019-10-13 19:02:47,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:02:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 929 transitions. [2019-10-13 19:02:47,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:02:47,351 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:02:47,351 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1] [2019-10-13 19:02:47,351 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:02:47,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:02:47,352 INFO L82 PathProgramCache]: Analyzing trace with hash -903356717, now seen corresponding path program 1 times [2019-10-13 19:02:47,352 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:02:47,352 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323811919] [2019-10-13 19:02:47,353 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:02:47,353 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:02:47,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:02:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,134 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2019-10-13 19:02:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:02:48,514 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2019-10-13 19:02:48,515 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323811919] [2019-10-13 19:02:48,515 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:02:48,516 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:02:48,516 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334110004] [2019-10-13 19:02:48,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:02:48,520 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:02:48,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:02:48,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:02:48,521 INFO L87 Difference]: Start difference. First operand 645 states and 929 transitions. Second operand 8 states. [2019-10-13 19:02:49,907 WARN L191 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2019-10-13 19:02:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:02:59,537 INFO L93 Difference]: Finished difference Result 1277 states and 1850 transitions. [2019-10-13 19:02:59,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:02:59,538 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2019-10-13 19:02:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:02:59,550 INFO L225 Difference]: With dead ends: 1277 [2019-10-13 19:02:59,550 INFO L226 Difference]: Without dead ends: 1227 [2019-10-13 19:02:59,554 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:02:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2019-10-13 19:02:59,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1216. [2019-10-13 19:02:59,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1216 states. [2019-10-13 19:02:59,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1758 transitions. [2019-10-13 19:02:59,760 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1758 transitions. Word has length 150 [2019-10-13 19:02:59,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:02:59,761 INFO L462 AbstractCegarLoop]: Abstraction has 1216 states and 1758 transitions. [2019-10-13 19:02:59,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:02:59,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1758 transitions. [2019-10-13 19:02:59,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-13 19:02:59,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:02:59,769 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 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] [2019-10-13 19:02:59,769 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:02:59,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:02:59,769 INFO L82 PathProgramCache]: Analyzing trace with hash -421737455, now seen corresponding path program 1 times [2019-10-13 19:02:59,770 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:02:59,770 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558118506] [2019-10-13 19:02:59,770 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:02:59,770 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:02:59,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:02:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,468 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2019-10-13 19:03:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:03:00,934 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2019-10-13 19:03:00,935 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558118506] [2019-10-13 19:03:00,935 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:03:00,935 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:03:00,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186254128] [2019-10-13 19:03:00,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:03:00,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:03:00,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:03:00,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:03:00,938 INFO L87 Difference]: Start difference. First operand 1216 states and 1758 transitions. Second operand 9 states. [2019-10-13 19:03:02,848 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 249