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 0.1.24-13a467a-m [2019-10-15 02:05:07,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:05:07,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:05:07,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:05:07,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:05:07,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:05:07,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:05:07,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:05:07,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:05:07,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:05:07,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:05:07,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:05:07,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:05:07,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:05:07,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:05:07,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:05:07,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:05:07,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:05:07,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:05:07,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:05:07,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:05:07,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:05:07,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:05:07,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:05:07,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:05:07,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:05:07,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:05:07,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:05:07,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:05:07,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:05:07,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:05:07,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:05:07,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:05:07,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:05:07,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:05:07,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:05:07,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:05:07,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:05:07,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:05:07,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:05:07,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:05:07,205 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 [2019-10-15 02:05:07,219 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:05:07,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:05:07,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:05:07,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:05:07,223 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:05:07,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:05:07,224 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:05:07,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:05:07,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:05:07,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:05:07,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:05:07,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:05:07,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:05:07,225 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:05:07,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:05:07,226 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:05:07,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:05:07,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:05:07,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:05:07,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:05:07,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:05:07,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:05:07,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:05:07,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:05:07,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:05:07,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:05:07,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:05:07,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:05:07,228 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 [2019-10-15 02:05:07,526 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:05:07,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:05:07,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:05:07,544 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:05:07,545 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:05:07,546 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2019-10-15 02:05:07,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29ea77c3/43a9695383c146399bd7681237e0d63b/FLAG1926e9f82 [2019-10-15 02:05:08,348 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:05:08,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2019-10-15 02:05:08,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29ea77c3/43a9695383c146399bd7681237e0d63b/FLAG1926e9f82 [2019-10-15 02:05:08,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29ea77c3/43a9695383c146399bd7681237e0d63b [2019-10-15 02:05:08,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:05:08,503 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:05:08,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:05:08,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:05:08,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:05:08,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:05:08" (1/1) ... [2019-10-15 02:05:08,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9fb768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:08, skipping insertion in model container [2019-10-15 02:05:08,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:05:08" (1/1) ... [2019-10-15 02:05:08,522 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:05:08,614 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:05:09,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:05:09,482 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:05:09,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:05:09,817 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:05:09,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:09 WrapperNode [2019-10-15 02:05:09,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:05:09,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:05:09,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:05:09,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:05:09,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:09" (1/1) ... [2019-10-15 02:05:09,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:09" (1/1) ... [2019-10-15 02:05:09,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:09" (1/1) ... [2019-10-15 02:05:09,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:09" (1/1) ... [2019-10-15 02:05:09,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:09" (1/1) ... [2019-10-15 02:05:09,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:09" (1/1) ... [2019-10-15 02:05:09,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:09" (1/1) ... [2019-10-15 02:05:10,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:05:10,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:05:10,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:05:10,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:05:10,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:09" (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 [2019-10-15 02:05:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:05:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:05:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-15 02:05:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2019-10-15 02:05:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2019-10-15 02:05:10,114 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-15 02:05:10,114 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-15 02:05:10,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:05:10,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:05:10,115 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:05:10,115 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:05:10,116 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_value [2019-10-15 02:05:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_send_message [2019-10-15 02:05:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_ver_check [2019-10-15 02:05:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_count [2019-10-15 02:05:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_name [2019-10-15 02:05:10,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_data [2019-10-15 02:05:10,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_reset_high_low_data [2019-10-15 02:05:10,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_update_device [2019-10-15 02:05:10,121 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bmc_data [2019-10-15 02:05:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure show_name [2019-10-15 02:05:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_show_sensor [2019-10-15 02:05:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_reset_high_low [2019-10-15 02:05:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_sensor [2019-10-15 02:05:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure is_temp_sensor [2019-10-15 02:05:10,123 INFO L138 BoogieDeclarations]: Found implementation of procedure power_sensor_multiplier [2019-10-15 02:05:10,123 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sensor [2019-10-15 02:05:10,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_find_sensors [2019-10-15 02:05:10,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_register_bmc [2019-10-15 02:05:10,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_delete [2019-10-15 02:05:10,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_gone [2019-10-15 02:05:10,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_msg_handler [2019-10-15 02:05:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_init [2019-10-15 02:05:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_exit [2019-10-15 02:05:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:05:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 02:05:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_5 [2019-10-15 02:05:10,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_6 [2019-10-15 02:05:10,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_7 [2019-10-15 02:05:10,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:05:10,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:05:10,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 02:05:10,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-15 02:05:10,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-15 02:05:10,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-15 02:05:10,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sysfs [2019-10-15 02:05:10,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2019-10-15 02:05:10,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute_2 [2019-10-15 02:05:10,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:05:10,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 02:05:10,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-15 02:05:10,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 02:05:10,128 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-15 02:05:10,128 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-15 02:05:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 02:05:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 02:05:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 02:05:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2019-10-15 02:05:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2019-10-15 02:05:10,130 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2019-10-15 02:05:10,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_create_user [2019-10-15 02:05:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2019-10-15 02:05:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2019-10-15 02:05:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_request_settime [2019-10-15 02:05:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_watcher_register [2019-10-15 02:05:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_watcher_unregister [2019-10-15 02:05:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_validate_addr [2019-10-15 02:05:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:05:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-15 02:05:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-15 02:05:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-15 02:05:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:05:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-10-15 02:05:10,133 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:05:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:05:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 02:05:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:05:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:05:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 02:05:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-15 02:05:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2019-10-15 02:05:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:05:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2019-10-15 02:05:10,137 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 02:05:10,137 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-15 02:05:10,137 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 02:05:10,138 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-15 02:05:10,138 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-15 02:05:10,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:05:10,139 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-15 02:05:10,139 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 02:05:10,139 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 02:05:10,139 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-15 02:05:10,139 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:05:10,139 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-15 02:05:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:05:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:05:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-10-15 02:05:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-15 02:05:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_5 [2019-10-15 02:05:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_6 [2019-10-15 02:05:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_7 [2019-10-15 02:05:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2019-10-15 02:05:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 02:05:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 02:05:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 02:05:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-15 02:05:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sysfs [2019-10-15 02:05:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2019-10-15 02:05:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute_2 [2019-10-15 02:05:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:05:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:05:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:05:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:05:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:05:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:05:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:05:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:05:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:05:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2019-10-15 02:05:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_create_user [2019-10-15 02:05:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2019-10-15 02:05:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_request_settime [2019-10-15 02:05:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_watcher_register [2019-10-15 02:05:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_watcher_unregister [2019-10-15 02:05:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_validate_addr [2019-10-15 02:05:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2019-10-15 02:05:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2019-10-15 02:05:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure extract_value [2019-10-15 02:05:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_msg_handler [2019-10-15 02:05:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_register_bmc [2019-10-15 02:05:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_gone [2019-10-15 02:05:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_send_message [2019-10-15 02:05:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_ver_check [2019-10-15 02:05:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_count [2019-10-15 02:05:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_name [2019-10-15 02:05:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_data [2019-10-15 02:05:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_reset_high_low_data [2019-10-15 02:05:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_update_device [2019-10-15 02:05:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure get_bmc_data [2019-10-15 02:05:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure show_name [2019-10-15 02:05:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_show_sensor [2019-10-15 02:05:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_reset_high_low [2019-10-15 02:05:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_sensor [2019-10-15 02:05:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure is_temp_sensor [2019-10-15 02:05:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure power_sensor_multiplier [2019-10-15 02:05:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure create_sensor [2019-10-15 02:05:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:05:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_find_sensors [2019-10-15 02:05:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_delete [2019-10-15 02:05:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 02:05:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 02:05:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_init [2019-10-15 02:05:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_exit [2019-10-15 02:05:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:05:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:05:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-15 02:05:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:05:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:05:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:05:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-15 02:05:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-15 02:05:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-15 02:05:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:05:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:05:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:05:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:05:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:05:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:05:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:05:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 02:05:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 02:05:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 02:05:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 02:05:12,894 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:05:12,894 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:05:12,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:05:12 BoogieIcfgContainer [2019-10-15 02:05:12,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:05:12,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:05:12,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:05:12,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:05:12,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:05:08" (1/3) ... [2019-10-15 02:05:12,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c81ade4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:05:12, skipping insertion in model container [2019-10-15 02:05:12,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:05:09" (2/3) ... [2019-10-15 02:05:12,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c81ade4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:05:12, skipping insertion in model container [2019-10-15 02:05:12,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:05:12" (3/3) ... [2019-10-15 02:05:12,905 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2019-10-15 02:05:12,916 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:05:12,927 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:05:12,939 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:05:12,982 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:05:12,982 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:05:12,983 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:05:12,983 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:05:12,983 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:05:12,983 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:05:12,983 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:05:12,983 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:05:13,020 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states. [2019-10-15 02:05:13,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 02:05:13,053 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:05:13,054 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] [2019-10-15 02:05:13,058 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:05:13,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:05:13,066 INFO L82 PathProgramCache]: Analyzing trace with hash 422882300, now seen corresponding path program 1 times [2019-10-15 02:05:13,077 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:05:13,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032071428] [2019-10-15 02:05:13,078 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:05:13,078 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:05:13,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:05:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:05:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 02:05:14,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032071428] [2019-10-15 02:05:14,122 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:05:14,122 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 02:05:14,122 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939388513] [2019-10-15 02:05:14,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 02:05:14,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:05:14,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 02:05:14,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 02:05:14,152 INFO L87 Difference]: Start difference. First operand 398 states. Second operand 11 states. [2019-10-15 02:05:24,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:05:24,796 INFO L93 Difference]: Finished difference Result 2439 states and 3202 transitions. [2019-10-15 02:05:24,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-15 02:05:24,803 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 162 [2019-10-15 02:05:24,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:05:24,844 INFO L225 Difference]: With dead ends: 2439 [2019-10-15 02:05:24,844 INFO L226 Difference]: Without dead ends: 2018 [2019-10-15 02:05:24,856 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 [2019-10-15 02:05:24,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2019-10-15 02:05:25,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1901. [2019-10-15 02:05:25,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1901 states. [2019-10-15 02:05:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2449 transitions. [2019-10-15 02:05:25,220 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2449 transitions. Word has length 162 [2019-10-15 02:05:25,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:05:25,225 INFO L462 AbstractCegarLoop]: Abstraction has 1901 states and 2449 transitions. [2019-10-15 02:05:25,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 02:05:25,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2449 transitions. [2019-10-15 02:05:25,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 02:05:25,244 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:05:25,244 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] [2019-10-15 02:05:25,245 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:05:25,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:05:25,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1102720887, now seen corresponding path program 1 times [2019-10-15 02:05:25,246 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:05:25,246 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652850373] [2019-10-15 02:05:25,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:05:25,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:05:25,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:05:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:05:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 02:05:25,566 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652850373] [2019-10-15 02:05:25,566 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:05:25,567 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:05:25,567 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841533260] [2019-10-15 02:05:25,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:05:25,571 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:05:25,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:05:25,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:05:25,572 INFO L87 Difference]: Start difference. First operand 1901 states and 2449 transitions. Second operand 3 states. [2019-10-15 02:05:25,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:05:25,746 INFO L93 Difference]: Finished difference Result 3063 states and 3985 transitions. [2019-10-15 02:05:25,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:05:25,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-15 02:05:25,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:05:25,771 INFO L225 Difference]: With dead ends: 3063 [2019-10-15 02:05:25,772 INFO L226 Difference]: Without dead ends: 2675 [2019-10-15 02:05:25,776 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 [2019-10-15 02:05:25,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2675 states. [2019-10-15 02:05:25,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2675 to 2627. [2019-10-15 02:05:25,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2627 states. [2019-10-15 02:05:25,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3385 transitions. [2019-10-15 02:05:25,967 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3385 transitions. Word has length 174 [2019-10-15 02:05:25,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:05:25,968 INFO L462 AbstractCegarLoop]: Abstraction has 2627 states and 3385 transitions. [2019-10-15 02:05:25,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:05:25,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3385 transitions. [2019-10-15 02:05:25,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-15 02:05:25,973 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:05:25,973 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] [2019-10-15 02:05:25,974 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:05:25,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:05:25,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1796085895, now seen corresponding path program 1 times [2019-10-15 02:05:25,974 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:05:25,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844648319] [2019-10-15 02:05:25,975 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:05:25,975 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:05:25,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:05:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:05:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 02:05:26,589 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844648319] [2019-10-15 02:05:26,590 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:05:26,590 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 02:05:26,590 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582454720] [2019-10-15 02:05:26,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 02:05:26,592 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:05:26,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 02:05:26,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:05:26,593 INFO L87 Difference]: Start difference. First operand 2627 states and 3385 transitions. Second operand 7 states. [2019-10-15 02:05:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:05:30,719 INFO L93 Difference]: Finished difference Result 3547 states and 4611 transitions. [2019-10-15 02:05:30,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 02:05:30,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2019-10-15 02:05:30,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:05:30,750 INFO L225 Difference]: With dead ends: 3547 [2019-10-15 02:05:30,750 INFO L226 Difference]: Without dead ends: 3543 [2019-10-15 02:05:30,754 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 [2019-10-15 02:05:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2019-10-15 02:05:30,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3385. [2019-10-15 02:05:30,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3385 states. [2019-10-15 02:05:31,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 4364 transitions. [2019-10-15 02:05:31,195 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 4364 transitions. Word has length 178 [2019-10-15 02:05:31,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:05:31,196 INFO L462 AbstractCegarLoop]: Abstraction has 3385 states and 4364 transitions. [2019-10-15 02:05:31,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 02:05:31,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 4364 transitions. [2019-10-15 02:05:31,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 02:05:31,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:05:31,206 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] [2019-10-15 02:05:31,206 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:05:31,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:05:31,207 INFO L82 PathProgramCache]: Analyzing trace with hash 425989734, now seen corresponding path program 1 times [2019-10-15 02:05:31,207 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:05:31,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244686296] [2019-10-15 02:05:31,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:05:31,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:05:31,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:05:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:05:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-15 02:05:31,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244686296] [2019-10-15 02:05:31,930 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872637464] [2019-10-15 02:05:31,930 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 [2019-10-15 02:05:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:05:32,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 1990 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 02:05:32,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:05:32,553 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 02:05:32,553 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:05:32,967 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-15 02:05:32,967 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 02:05:32,968 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [20] total 25 [2019-10-15 02:05:32,968 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824132415] [2019-10-15 02:05:32,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:05:32,969 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:05:32,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:05:32,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2019-10-15 02:05:32,970 INFO L87 Difference]: Start difference. First operand 3385 states and 4364 transitions. Second operand 8 states. [2019-10-15 02:05:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:05:33,152 INFO L93 Difference]: Finished difference Result 6081 states and 7850 transitions. [2019-10-15 02:05:33,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 02:05:33,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2019-10-15 02:05:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:05:33,176 INFO L225 Difference]: With dead ends: 6081 [2019-10-15 02:05:33,177 INFO L226 Difference]: Without dead ends: 3512 [2019-10-15 02:05:33,187 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2019-10-15 02:05:33,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2019-10-15 02:05:33,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 3427. [2019-10-15 02:05:33,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3427 states. [2019-10-15 02:05:33,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 4408 transitions. [2019-10-15 02:05:33,465 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 4408 transitions. Word has length 234 [2019-10-15 02:05:33,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:05:33,465 INFO L462 AbstractCegarLoop]: Abstraction has 3427 states and 4408 transitions. [2019-10-15 02:05:33,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:05:33,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 4408 transitions. [2019-10-15 02:05:33,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-15 02:05:33,471 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:05:33,472 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] [2019-10-15 02:05:33,679 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:05:33,680 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:05:33,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:05:33,680 INFO L82 PathProgramCache]: Analyzing trace with hash 254680291, now seen corresponding path program 1 times [2019-10-15 02:05:33,680 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:05:33,681 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272623408] [2019-10-15 02:05:33,681 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:05:33,681 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:05:33,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:05:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:05:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-15 02:05:34,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272623408] [2019-10-15 02:05:34,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494650625] [2019-10-15 02:05:34,296 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 [2019-10-15 02:05:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:05:34,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 2059 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 02:05:34,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:05:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-15 02:05:34,934 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:05:35,199 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-15 02:05:35,200 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1875455633] [2019-10-15 02:05:35,242 INFO L162 IcfgInterpreter]: Started Sifa with 198 locations of interest [2019-10-15 02:05:35,242 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:05:35,250 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:05:35,258 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:05:35,259 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs