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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:02:44,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:02:44,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:02:44,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:02:44,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:02:44,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:02:44,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:02:44,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:02:44,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:02:44,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:02:44,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:02:44,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:02:44,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:02:44,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:02:44,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:02:44,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:02:44,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:02:44,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:02:44,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:02:44,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:02:44,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:02:44,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:02:44,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:02:44,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:02:44,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:02:44,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:02:44,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:02:44,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:02:44,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:02:44,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:02:44,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:02:44,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:02:44,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:02:44,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:02:44,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:02:44,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:02:44,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:02:44,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:02:44,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:02:44,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:02:44,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:02:44,462 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 22:02:44,486 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:02:44,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:02:44,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:02:44,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:02:44,490 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:02:44,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:02:44,490 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:02:44,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:02:44,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:02:44,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:02:44,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:02:44,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:02:44,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:02:44,493 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:02:44,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:02:44,493 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:02:44,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:02:44,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:02:44,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:02:44,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:02:44,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:02:44,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:02:44,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:02:44,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:02:44,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:02:44,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:02:44,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:02:44,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:02:44,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:02:44,852 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:02:44,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:02:44,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:02:44,881 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:02:44,882 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:02:44,883 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2019-10-13 22:02:44,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6a4ddf9/5322ce7c70da45298676a374e3947f4c/FLAGf15ab5896 [2019-10-13 22:02:45,701 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:02:45,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2019-10-13 22:02:45,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6a4ddf9/5322ce7c70da45298676a374e3947f4c/FLAGf15ab5896 [2019-10-13 22:02:45,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6a4ddf9/5322ce7c70da45298676a374e3947f4c [2019-10-13 22:02:45,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:02:45,921 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:02:45,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:02:45,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:02:45,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:02:45,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:02:45" (1/1) ... [2019-10-13 22:02:45,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@931e348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:45, skipping insertion in model container [2019-10-13 22:02:45,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:02:45" (1/1) ... [2019-10-13 22:02:45,941 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:02:46,018 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:02:46,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:02:47,004 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:02:47,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:02:47,294 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:02:47,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:47 WrapperNode [2019-10-13 22:02:47,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:02:47,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:02:47,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:02:47,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:02:47,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:47" (1/1) ... [2019-10-13 22:02:47,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:47" (1/1) ... [2019-10-13 22:02:47,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:47" (1/1) ... [2019-10-13 22:02:47,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:47" (1/1) ... [2019-10-13 22:02:47,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:47" (1/1) ... [2019-10-13 22:02:47,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:47" (1/1) ... [2019-10-13 22:02:47,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:47" (1/1) ... [2019-10-13 22:02:47,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:02:47,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:02:47,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:02:47,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:02:47,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:47" (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 22:02:47,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:02:47,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:02:47,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-13 22:02:47,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2019-10-13 22:02:47,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2019-10-13 22:02:47,583 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 22:02:47,583 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-13 22:02:47,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:02:47,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:02:47,584 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:02:47,584 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:02:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_value [2019-10-13 22:02:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_send_message [2019-10-13 22:02:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_ver_check [2019-10-13 22:02:47,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_count [2019-10-13 22:02:47,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_name [2019-10-13 22:02:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_data [2019-10-13 22:02:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_reset_high_low_data [2019-10-13 22:02:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_update_device [2019-10-13 22:02:47,589 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bmc_data [2019-10-13 22:02:47,589 INFO L138 BoogieDeclarations]: Found implementation of procedure show_name [2019-10-13 22:02:47,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_show_sensor [2019-10-13 22:02:47,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_reset_high_low [2019-10-13 22:02:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_sensor [2019-10-13 22:02:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure is_temp_sensor [2019-10-13 22:02:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure power_sensor_multiplier [2019-10-13 22:02:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sensor [2019-10-13 22:02:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_find_sensors [2019-10-13 22:02:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_register_bmc [2019-10-13 22:02:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_delete [2019-10-13 22:02:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_gone [2019-10-13 22:02:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_msg_handler [2019-10-13 22:02:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_init [2019-10-13 22:02:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_exit [2019-10-13 22:02:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:02:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 22:02:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_5 [2019-10-13 22:02:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_6 [2019-10-13 22:02:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_7 [2019-10-13 22:02:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:02:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:02:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:02:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 22:02:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 22:02:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 22:02:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sysfs [2019-10-13 22:02:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2019-10-13 22:02:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute_2 [2019-10-13 22:02:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:02:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 22:02:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 22:02:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 22:02:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 22:02:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-13 22:02:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 22:02:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 22:02:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 22:02:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2019-10-13 22:02:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2019-10-13 22:02:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2019-10-13 22:02:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_create_user [2019-10-13 22:02:47,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2019-10-13 22:02:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2019-10-13 22:02:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_request_settime [2019-10-13 22:02:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_watcher_register [2019-10-13 22:02:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_watcher_unregister [2019-10-13 22:02:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_validate_addr [2019-10-13 22:02:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:02:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-13 22:02:47,598 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 22:02:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 22:02:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:02:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-10-13 22:02:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:02:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:02:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:02:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:02:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:02:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:02:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-13 22:02:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2019-10-13 22:02:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:02:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2019-10-13 22:02:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 22:02:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-13 22:02:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 22:02:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 22:02:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 22:02:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:02:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 22:02:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 22:02:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 22:02:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 22:02:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:02:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-13 22:02:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:02:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:02:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-10-13 22:02:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-13 22:02:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_5 [2019-10-13 22:02:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_6 [2019-10-13 22:02:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_7 [2019-10-13 22:02:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2019-10-13 22:02:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 22:02:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 22:02:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 22:02:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 22:02:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sysfs [2019-10-13 22:02:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2019-10-13 22:02:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute_2 [2019-10-13 22:02:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:02:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:02:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:02:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:02:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:02:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:02:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:02:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:02:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:02:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2019-10-13 22:02:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_create_user [2019-10-13 22:02:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2019-10-13 22:02:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_request_settime [2019-10-13 22:02:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_watcher_register [2019-10-13 22:02:47,610 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_watcher_unregister [2019-10-13 22:02:47,610 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_validate_addr [2019-10-13 22:02:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2019-10-13 22:02:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2019-10-13 22:02:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure extract_value [2019-10-13 22:02:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_msg_handler [2019-10-13 22:02:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_register_bmc [2019-10-13 22:02:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_gone [2019-10-13 22:02:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_send_message [2019-10-13 22:02:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_ver_check [2019-10-13 22:02:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_count [2019-10-13 22:02:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_name [2019-10-13 22:02:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_data [2019-10-13 22:02:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_reset_high_low_data [2019-10-13 22:02:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_update_device [2019-10-13 22:02:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure get_bmc_data [2019-10-13 22:02:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure show_name [2019-10-13 22:02:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_show_sensor [2019-10-13 22:02:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_reset_high_low [2019-10-13 22:02:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_sensor [2019-10-13 22:02:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure is_temp_sensor [2019-10-13 22:02:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure power_sensor_multiplier [2019-10-13 22:02:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure create_sensor [2019-10-13 22:02:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:02:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_find_sensors [2019-10-13 22:02:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_delete [2019-10-13 22:02:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:02:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:02:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_init [2019-10-13 22:02:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_exit [2019-10-13 22:02:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:02:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:02:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-13 22:02:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:02:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:02:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:02:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 22:02:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 22:02:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 22:02:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:02:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:02:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:02:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:02:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:02:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:02:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:02:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:02:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:02:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:02:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:02:50,140 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:02:50,140 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:02:50,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:02:50 BoogieIcfgContainer [2019-10-13 22:02:50,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:02:50,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:02:50,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:02:50,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:02:50,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:02:45" (1/3) ... [2019-10-13 22:02:50,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ad6904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:02:50, skipping insertion in model container [2019-10-13 22:02:50,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:47" (2/3) ... [2019-10-13 22:02:50,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ad6904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:02:50, skipping insertion in model container [2019-10-13 22:02:50,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:02:50" (3/3) ... [2019-10-13 22:02:50,154 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2019-10-13 22:02:50,166 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:02:50,177 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:02:50,189 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:02:50,232 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:02:50,232 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:02:50,232 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:02:50,232 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:02:50,232 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:02:50,233 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:02:50,233 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:02:50,233 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:02:50,267 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states. [2019-10-13 22:02:50,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 22:02:50,285 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:02:50,287 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2019-10-13 22:02:50,289 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:02:50,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:02:50,296 INFO L82 PathProgramCache]: Analyzing trace with hash 422882300, now seen corresponding path program 1 times [2019-10-13 22:02:50,306 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:02:50,306 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363344179] [2019-10-13 22:02:50,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:02:50,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:02:50,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:02:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:02:51,395 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 22:02:51,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363344179] [2019-10-13 22:02:51,397 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:02:51,397 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 22:02:51,397 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995910214] [2019-10-13 22:02:51,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 22:02:51,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:02:51,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 22:02:51,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 22:02:51,427 INFO L87 Difference]: Start difference. First operand 398 states. Second operand 11 states. [2019-10-13 22:03:01,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:01,269 INFO L93 Difference]: Finished difference Result 2439 states and 3202 transitions. [2019-10-13 22:03:01,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-13 22:03:01,271 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 162 [2019-10-13 22:03:01,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:01,323 INFO L225 Difference]: With dead ends: 2439 [2019-10-13 22:03:01,323 INFO L226 Difference]: Without dead ends: 2018 [2019-10-13 22:03:01,338 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2019-10-13 22:03:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2019-10-13 22:03:01,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1901. [2019-10-13 22:03:01,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1901 states. [2019-10-13 22:03:01,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2449 transitions. [2019-10-13 22:03:01,637 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2449 transitions. Word has length 162 [2019-10-13 22:03:01,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:01,638 INFO L462 AbstractCegarLoop]: Abstraction has 1901 states and 2449 transitions. [2019-10-13 22:03:01,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 22:03:01,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2449 transitions. [2019-10-13 22:03:01,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 22:03:01,645 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:01,646 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2019-10-13 22:03:01,646 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:01,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:01,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1102720887, now seen corresponding path program 1 times [2019-10-13 22:03:01,647 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:01,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008370746] [2019-10-13 22:03:01,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:01,648 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:01,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:01,838 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 22:03:01,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008370746] [2019-10-13 22:03:01,839 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:01,839 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:03:01,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921688492] [2019-10-13 22:03:01,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:03:01,841 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:01,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:03:01,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:01,842 INFO L87 Difference]: Start difference. First operand 1901 states and 2449 transitions. Second operand 3 states. [2019-10-13 22:03:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:02,006 INFO L93 Difference]: Finished difference Result 3063 states and 3985 transitions. [2019-10-13 22:03:02,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:03:02,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-13 22:03:02,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:02,027 INFO L225 Difference]: With dead ends: 3063 [2019-10-13 22:03:02,027 INFO L226 Difference]: Without dead ends: 2675 [2019-10-13 22:03:02,032 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:03:02,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2675 states. [2019-10-13 22:03:02,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2675 to 2627. [2019-10-13 22:03:02,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2627 states. [2019-10-13 22:03:02,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3385 transitions. [2019-10-13 22:03:02,249 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3385 transitions. Word has length 174 [2019-10-13 22:03:02,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:02,251 INFO L462 AbstractCegarLoop]: Abstraction has 2627 states and 3385 transitions. [2019-10-13 22:03:02,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:03:02,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3385 transitions. [2019-10-13 22:03:02,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-13 22:03:02,261 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:02,261 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2019-10-13 22:03:02,261 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:02,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:02,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1796085895, now seen corresponding path program 1 times [2019-10-13 22:03:02,262 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:02,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483338471] [2019-10-13 22:03:02,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:02,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:02,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 22:03:02,588 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483338471] [2019-10-13 22:03:02,588 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:03:02,589 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 22:03:02,589 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427954727] [2019-10-13 22:03:02,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 22:03:02,590 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:02,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 22:03:02,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:03:02,590 INFO L87 Difference]: Start difference. First operand 2627 states and 3385 transitions. Second operand 7 states. [2019-10-13 22:03:06,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:06,459 INFO L93 Difference]: Finished difference Result 3547 states and 4611 transitions. [2019-10-13 22:03:06,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 22:03:06,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2019-10-13 22:03:06,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:06,491 INFO L225 Difference]: With dead ends: 3547 [2019-10-13 22:03:06,491 INFO L226 Difference]: Without dead ends: 3543 [2019-10-13 22:03:06,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-13 22:03:06,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2019-10-13 22:03:06,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3385. [2019-10-13 22:03:06,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3385 states. [2019-10-13 22:03:06,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 4364 transitions. [2019-10-13 22:03:06,755 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 4364 transitions. Word has length 178 [2019-10-13 22:03:06,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:06,758 INFO L462 AbstractCegarLoop]: Abstraction has 3385 states and 4364 transitions. [2019-10-13 22:03:06,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 22:03:06,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 4364 transitions. [2019-10-13 22:03:06,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-13 22:03:06,765 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:06,766 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 22:03:06,766 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:06,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:06,766 INFO L82 PathProgramCache]: Analyzing trace with hash 425989734, now seen corresponding path program 1 times [2019-10-13 22:03:06,767 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:06,767 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169776657] [2019-10-13 22:03:06,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:06,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:06,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 22:03:07,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169776657] [2019-10-13 22:03:07,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077789802] [2019-10-13 22:03:07,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:03:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:07,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 1990 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 22:03:07,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:03:08,082 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-13 22:03:08,084 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:03:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-13 22:03:08,446 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 22:03:08,447 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [20] total 25 [2019-10-13 22:03:08,447 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125734136] [2019-10-13 22:03:08,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:03:08,448 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:03:08,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:03:08,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2019-10-13 22:03:08,449 INFO L87 Difference]: Start difference. First operand 3385 states and 4364 transitions. Second operand 8 states. [2019-10-13 22:03:08,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:03:08,707 INFO L93 Difference]: Finished difference Result 6081 states and 7850 transitions. [2019-10-13 22:03:08,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:03:08,708 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2019-10-13 22:03:08,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:03:08,739 INFO L225 Difference]: With dead ends: 6081 [2019-10-13 22:03:08,740 INFO L226 Difference]: Without dead ends: 3512 [2019-10-13 22:03:08,757 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2019-10-13 22:03:08,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2019-10-13 22:03:09,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 3427. [2019-10-13 22:03:09,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3427 states. [2019-10-13 22:03:09,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 4408 transitions. [2019-10-13 22:03:09,061 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 4408 transitions. Word has length 234 [2019-10-13 22:03:09,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:03:09,062 INFO L462 AbstractCegarLoop]: Abstraction has 3427 states and 4408 transitions. [2019-10-13 22:03:09,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:03:09,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 4408 transitions. [2019-10-13 22:03:09,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-13 22:03:09,070 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:03:09,071 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 22:03:09,280 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:03:09,280 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:03:09,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:03:09,281 INFO L82 PathProgramCache]: Analyzing trace with hash 254680291, now seen corresponding path program 1 times [2019-10-13 22:03:09,281 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:03:09,281 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306098711] [2019-10-13 22:03:09,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:09,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:03:09,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:03:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:09,959 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 22:03:09,960 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306098711] [2019-10-13 22:03:09,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479182206] [2019-10-13 22:03:09,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:03:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:03:10,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 2059 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 22:03:10,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:03:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 22:03:10,561 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:03:10,881 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 22:03:10,882 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [721520001] [2019-10-13 22:03:10,927 INFO L162 IcfgInterpreter]: Started Sifa with 198 locations of interest [2019-10-13 22:03:10,927 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:03:10,935 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:03:10,942 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:03:10,942 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs