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 0.1.24-36ac518-m [2019-10-07 05:29:22,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 05:29:22,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 05:29:22,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 05:29:22,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 05:29:22,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 05:29:22,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 05:29:22,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 05:29:22,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 05:29:22,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 05:29:22,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 05:29:22,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 05:29:22,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 05:29:22,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 05:29:22,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 05:29:22,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 05:29:22,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 05:29:22,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 05:29:22,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 05:29:22,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 05:29:22,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 05:29:22,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 05:29:22,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 05:29:22,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 05:29:22,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 05:29:22,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 05:29:22,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 05:29:22,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 05:29:22,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 05:29:22,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 05:29:22,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 05:29:22,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 05:29:22,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 05:29:22,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 05:29:22,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 05:29:22,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 05:29:22,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 05:29:22,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 05:29:22,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 05:29:22,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 05:29:22,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 05:29:22,658 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 [2019-10-07 05:29:22,679 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 05:29:22,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 05:29:22,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 05:29:22,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 05:29:22,681 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 05:29:22,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 05:29:22,681 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 05:29:22,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 05:29:22,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 05:29:22,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 05:29:22,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 05:29:22,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 05:29:22,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 05:29:22,684 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 05:29:22,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 05:29:22,684 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 05:29:22,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 05:29:22,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 05:29:22,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 05:29:22,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 05:29:22,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 05:29:22,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 05:29:22,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 05:29:22,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 05:29:22,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 05:29:22,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 05:29:22,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 05:29:22,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 05:29:22,686 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 [2019-10-07 05:29:22,965 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 05:29:22,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 05:29:22,993 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 05:29:22,995 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 05:29:22,995 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 05:29:22,996 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2019-10-07 05:29:23,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749bf6ee6/b2cac38613544661a7768b6d65f8975d/FLAGc4c456c30 [2019-10-07 05:29:23,683 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 05:29:23,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2019-10-07 05:29:23,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749bf6ee6/b2cac38613544661a7768b6d65f8975d/FLAGc4c456c30 [2019-10-07 05:29:23,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749bf6ee6/b2cac38613544661a7768b6d65f8975d [2019-10-07 05:29:23,897 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 05:29:23,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 05:29:23,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 05:29:23,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 05:29:23,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 05:29:23,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 05:29:23" (1/1) ... [2019-10-07 05:29:23,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d715e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:23, skipping insertion in model container [2019-10-07 05:29:23,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 05:29:23" (1/1) ... [2019-10-07 05:29:23,912 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 05:29:24,000 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 05:29:24,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 05:29:24,893 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 05:29:25,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 05:29:25,225 INFO L192 MainTranslator]: Completed translation [2019-10-07 05:29:25,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:25 WrapperNode [2019-10-07 05:29:25,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 05:29:25,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 05:29:25,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 05:29:25,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 05:29:25,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:25" (1/1) ... [2019-10-07 05:29:25,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:25" (1/1) ... [2019-10-07 05:29:25,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:25" (1/1) ... [2019-10-07 05:29:25,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:25" (1/1) ... [2019-10-07 05:29:25,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:25" (1/1) ... [2019-10-07 05:29:25,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:25" (1/1) ... [2019-10-07 05:29:25,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:25" (1/1) ... [2019-10-07 05:29:25,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 05:29:25,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 05:29:25,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 05:29:25,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 05:29:25,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:25" (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 [2019-10-07 05:29:25,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 05:29:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 05:29:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-07 05:29:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2019-10-07 05:29:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2019-10-07 05:29:25,506 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-07 05:29:25,506 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-07 05:29:25,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 05:29:25,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 05:29:25,506 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 05:29:25,507 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-07 05:29:25,507 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_value [2019-10-07 05:29:25,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_send_message [2019-10-07 05:29:25,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_ver_check [2019-10-07 05:29:25,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_count [2019-10-07 05:29:25,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_name [2019-10-07 05:29:25,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_data [2019-10-07 05:29:25,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_reset_high_low_data [2019-10-07 05:29:25,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_update_device [2019-10-07 05:29:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bmc_data [2019-10-07 05:29:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure show_name [2019-10-07 05:29:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_show_sensor [2019-10-07 05:29:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_reset_high_low [2019-10-07 05:29:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_sensor [2019-10-07 05:29:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure is_temp_sensor [2019-10-07 05:29:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure power_sensor_multiplier [2019-10-07 05:29:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sensor [2019-10-07 05:29:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_find_sensors [2019-10-07 05:29:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_register_bmc [2019-10-07 05:29:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_delete [2019-10-07 05:29:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_gone [2019-10-07 05:29:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_msg_handler [2019-10-07 05:29:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_init [2019-10-07 05:29:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_exit [2019-10-07 05:29:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 05:29:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-07 05:29:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_5 [2019-10-07 05:29:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_6 [2019-10-07 05:29:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_7 [2019-10-07 05:29:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 05:29:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 05:29:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 05:29:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 05:29:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 05:29:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 05:29:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sysfs [2019-10-07 05:29:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2019-10-07 05:29:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute_2 [2019-10-07 05:29:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 05:29:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-07 05:29:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-07 05:29:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-07 05:29:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-07 05:29:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-07 05:29:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-07 05:29:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-07 05:29:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-07 05:29:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2019-10-07 05:29:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2019-10-07 05:29:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2019-10-07 05:29:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_create_user [2019-10-07 05:29:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2019-10-07 05:29:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2019-10-07 05:29:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_request_settime [2019-10-07 05:29:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_watcher_register [2019-10-07 05:29:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_watcher_unregister [2019-10-07 05:29:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_validate_addr [2019-10-07 05:29:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 05:29:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-07 05:29:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-07 05:29:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-07 05:29:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-07 05:29:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-10-07 05:29:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 05:29:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 05:29:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 05:29:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 05:29:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 05:29:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 05:29:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-07 05:29:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2019-10-07 05:29:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 05:29:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2019-10-07 05:29:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-07 05:29:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-07 05:29:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-07 05:29:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-07 05:29:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-07 05:29:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 05:29:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-07 05:29:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-07 05:29:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-07 05:29:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-07 05:29:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-07 05:29:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-07 05:29:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 05:29:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 05:29:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-10-07 05:29:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-07 05:29:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_5 [2019-10-07 05:29:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_6 [2019-10-07 05:29:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_7 [2019-10-07 05:29:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2019-10-07 05:29:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-07 05:29:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-07 05:29:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-07 05:29:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-07 05:29:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sysfs [2019-10-07 05:29:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2019-10-07 05:29:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute_2 [2019-10-07 05:29:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 05:29:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 05:29:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 05:29:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 05:29:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 05:29:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 05:29:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 05:29:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 05:29:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-07 05:29:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2019-10-07 05:29:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_create_user [2019-10-07 05:29:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2019-10-07 05:29:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_request_settime [2019-10-07 05:29:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_watcher_register [2019-10-07 05:29:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_watcher_unregister [2019-10-07 05:29:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_validate_addr [2019-10-07 05:29:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2019-10-07 05:29:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2019-10-07 05:29:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure extract_value [2019-10-07 05:29:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_msg_handler [2019-10-07 05:29:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_register_bmc [2019-10-07 05:29:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_gone [2019-10-07 05:29:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_send_message [2019-10-07 05:29:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_ver_check [2019-10-07 05:29:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_count [2019-10-07 05:29:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_name [2019-10-07 05:29:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_data [2019-10-07 05:29:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_reset_high_low_data [2019-10-07 05:29:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_update_device [2019-10-07 05:29:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure get_bmc_data [2019-10-07 05:29:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure show_name [2019-10-07 05:29:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_show_sensor [2019-10-07 05:29:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_reset_high_low [2019-10-07 05:29:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_sensor [2019-10-07 05:29:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure is_temp_sensor [2019-10-07 05:29:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure power_sensor_multiplier [2019-10-07 05:29:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure create_sensor [2019-10-07 05:29:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 05:29:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_find_sensors [2019-10-07 05:29:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_delete [2019-10-07 05:29:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 05:29:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 05:29:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_init [2019-10-07 05:29:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_exit [2019-10-07 05:29:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 05:29:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 05:29:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-07 05:29:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 05:29:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 05:29:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 05:29:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 05:29:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 05:29:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 05:29:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 05:29:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 05:29:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 05:29:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 05:29:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 05:29:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 05:29:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 05:29:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 05:29:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 05:29:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 05:29:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 05:29:27,970 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 05:29:27,970 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 05:29:27,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 05:29:27 BoogieIcfgContainer [2019-10-07 05:29:27,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 05:29:27,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 05:29:27,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 05:29:27,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 05:29:27,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 05:29:23" (1/3) ... [2019-10-07 05:29:27,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7278df30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 05:29:27, skipping insertion in model container [2019-10-07 05:29:27,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:29:25" (2/3) ... [2019-10-07 05:29:27,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7278df30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 05:29:27, skipping insertion in model container [2019-10-07 05:29:27,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 05:29:27" (3/3) ... [2019-10-07 05:29:27,984 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2019-10-07 05:29:27,995 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 05:29:28,009 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 05:29:28,020 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 05:29:28,066 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 05:29:28,067 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 05:29:28,067 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 05:29:28,067 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 05:29:28,067 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 05:29:28,067 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 05:29:28,067 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 05:29:28,068 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 05:29:28,106 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states. [2019-10-07 05:29:28,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-07 05:29:28,135 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:29:28,137 INFO L385 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] [2019-10-07 05:29:28,140 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:29:28,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:29:28,146 INFO L82 PathProgramCache]: Analyzing trace with hash 422882300, now seen corresponding path program 1 times [2019-10-07 05:29:28,155 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:29:28,155 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:29:28,156 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:29:28,156 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:29:28,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:29:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:29:29,055 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 05:29:29,056 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:29:29,056 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:29:29,057 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 05:29:29,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 05:29:29,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 05:29:29,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-07 05:29:29,078 INFO L87 Difference]: Start difference. First operand 398 states. Second operand 11 states. [2019-10-07 05:29:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:29:38,436 INFO L93 Difference]: Finished difference Result 2439 states and 3202 transitions. [2019-10-07 05:29:38,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-07 05:29:38,438 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 162 [2019-10-07 05:29:38,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:29:38,472 INFO L225 Difference]: With dead ends: 2439 [2019-10-07 05:29:38,472 INFO L226 Difference]: Without dead ends: 2018 [2019-10-07 05:29:38,482 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2019-10-07 05:29:38,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2019-10-07 05:29:38,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1901. [2019-10-07 05:29:38,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1901 states. [2019-10-07 05:29:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2449 transitions. [2019-10-07 05:29:38,732 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2449 transitions. Word has length 162 [2019-10-07 05:29:38,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:29:38,734 INFO L462 AbstractCegarLoop]: Abstraction has 1901 states and 2449 transitions. [2019-10-07 05:29:38,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 05:29:38,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2449 transitions. [2019-10-07 05:29:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 05:29:38,739 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:29:38,740 INFO L385 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] [2019-10-07 05:29:38,740 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:29:38,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:29:38,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1102720887, now seen corresponding path program 1 times [2019-10-07 05:29:38,741 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:29:38,741 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:29:38,741 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:29:38,741 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:29:38,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:29:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:29:38,942 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 05:29:38,942 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:29:38,943 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:29:38,943 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 05:29:38,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 05:29:38,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 05:29:38,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 05:29:38,946 INFO L87 Difference]: Start difference. First operand 1901 states and 2449 transitions. Second operand 3 states. [2019-10-07 05:29:39,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:29:39,113 INFO L93 Difference]: Finished difference Result 3063 states and 3985 transitions. [2019-10-07 05:29:39,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 05:29:39,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-07 05:29:39,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:29:39,132 INFO L225 Difference]: With dead ends: 3063 [2019-10-07 05:29:39,132 INFO L226 Difference]: Without dead ends: 2675 [2019-10-07 05:29:39,137 INFO L606 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 [2019-10-07 05:29:39,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2675 states. [2019-10-07 05:29:39,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2675 to 2627. [2019-10-07 05:29:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2627 states. [2019-10-07 05:29:39,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3385 transitions. [2019-10-07 05:29:39,386 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3385 transitions. Word has length 174 [2019-10-07 05:29:39,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:29:39,389 INFO L462 AbstractCegarLoop]: Abstraction has 2627 states and 3385 transitions. [2019-10-07 05:29:39,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 05:29:39,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3385 transitions. [2019-10-07 05:29:39,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-07 05:29:39,410 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:29:39,411 INFO L385 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] [2019-10-07 05:29:39,411 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:29:39,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:29:39,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1796085895, now seen corresponding path program 1 times [2019-10-07 05:29:39,412 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:29:39,413 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:29:39,413 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:29:39,413 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:29:39,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:29:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:29:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 05:29:39,913 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:29:39,913 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:29:39,913 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 05:29:39,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 05:29:39,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 05:29:39,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-07 05:29:39,915 INFO L87 Difference]: Start difference. First operand 2627 states and 3385 transitions. Second operand 7 states. [2019-10-07 05:29:43,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:29:43,359 INFO L93 Difference]: Finished difference Result 3547 states and 4611 transitions. [2019-10-07 05:29:43,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 05:29:43,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2019-10-07 05:29:43,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:29:43,381 INFO L225 Difference]: With dead ends: 3547 [2019-10-07 05:29:43,381 INFO L226 Difference]: Without dead ends: 3543 [2019-10-07 05:29:43,383 INFO L606 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 [2019-10-07 05:29:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2019-10-07 05:29:43,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3385. [2019-10-07 05:29:43,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3385 states. [2019-10-07 05:29:43,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 4364 transitions. [2019-10-07 05:29:43,660 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 4364 transitions. Word has length 178 [2019-10-07 05:29:43,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:29:43,662 INFO L462 AbstractCegarLoop]: Abstraction has 3385 states and 4364 transitions. [2019-10-07 05:29:43,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 05:29:43,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 4364 transitions. [2019-10-07 05:29:43,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-07 05:29:43,669 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:29:43,670 INFO L385 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] [2019-10-07 05:29:43,670 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:29:43,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:29:43,670 INFO L82 PathProgramCache]: Analyzing trace with hash 425989734, now seen corresponding path program 1 times [2019-10-07 05:29:43,671 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:29:43,671 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:29:43,671 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:29:43,671 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:29:43,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:29:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:29:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-07 05:29:44,305 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:29:44,305 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 05:29:44,306 INFO L95 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 [2019-10-07 05:29:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:29:44,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 1990 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 05:29:44,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 05:29:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 05:29:44,954 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 05:29:45,267 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-07 05:29:45,270 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 05:29:45,270 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [20] total 25 [2019-10-07 05:29:45,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 05:29:45,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 05:29:45,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2019-10-07 05:29:45,274 INFO L87 Difference]: Start difference. First operand 3385 states and 4364 transitions. Second operand 8 states. [2019-10-07 05:29:45,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:29:45,481 INFO L93 Difference]: Finished difference Result 6081 states and 7850 transitions. [2019-10-07 05:29:45,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 05:29:45,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2019-10-07 05:29:45,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:29:45,511 INFO L225 Difference]: With dead ends: 6081 [2019-10-07 05:29:45,511 INFO L226 Difference]: Without dead ends: 3512 [2019-10-07 05:29:45,524 INFO L606 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 [2019-10-07 05:29:45,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2019-10-07 05:29:45,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 3427. [2019-10-07 05:29:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3427 states. [2019-10-07 05:29:45,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 4408 transitions. [2019-10-07 05:29:45,787 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 4408 transitions. Word has length 234 [2019-10-07 05:29:45,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:29:45,787 INFO L462 AbstractCegarLoop]: Abstraction has 3427 states and 4408 transitions. [2019-10-07 05:29:45,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 05:29:45,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 4408 transitions. [2019-10-07 05:29:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-07 05:29:45,792 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:29:45,793 INFO L385 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] [2019-10-07 05:29:46,002 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 05:29:46,003 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:29:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:29:46,003 INFO L82 PathProgramCache]: Analyzing trace with hash 254680291, now seen corresponding path program 1 times [2019-10-07 05:29:46,004 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:29:46,004 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:29:46,004 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:29:46,005 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:29:46,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:29:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:29:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-07 05:29:46,566 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:29:46,566 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 05:29:46,566 INFO L95 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 [2019-10-07 05:29:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:29:47,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 2059 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 05:29:47,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 05:29:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-07 05:29:47,157 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 05:29:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-07 05:29:47,401 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 05:29:47,433 INFO L162 IcfgInterpreter]: Started Sifa with 198 locations of interest [2019-10-07 05:29:47,433 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 05:29:47,438 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 05:29:47,445 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 05:29:47,446 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 05:30:12,283 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-07 05:30:14,929 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 704 [2019-10-07 05:30:15,163 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 704 [2019-10-07 05:30:15,431 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 704 [2019-10-07 05:30:15,744 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 780 [2019-10-07 05:30:15,984 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 780 [2019-10-07 05:30:16,229 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 780 [2019-10-07 05:30:16,495 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 780 [2019-10-07 05:30:16,873 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 782 DAG size of output: 780 [2019-10-07 05:30:17,063 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 780 [2019-10-07 05:30:17,410 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 780 [2019-10-07 05:30:17,593 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 780 [2019-10-07 05:30:17,778 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 780 [2019-10-07 05:30:17,976 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 780 [2019-10-07 05:30:17,991 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 214 for LOIs [2019-10-07 05:30:18,159 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 697 [2019-10-07 05:30:18,307 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 697 [2019-10-07 05:30:18,460 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 773 [2019-10-07 05:30:18,461 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 796 for LOIs [2019-10-07 05:30:18,642 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 796 [2019-10-07 05:30:18,826 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 796 [2019-10-07 05:30:19,030 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 810 [2019-10-07 05:30:19,245 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 796 [2019-10-07 05:30:19,505 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 796 [2019-10-07 05:30:19,728 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 810 [2019-10-07 05:30:19,947 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:20,123 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:20,344 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:20,804 WARN L191 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 808 DAG size of output: 794 [2019-10-07 05:30:20,983 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:21,199 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:21,394 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:21,584 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:21,848 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:22,024 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:22,216 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:22,419 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:22,595 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:22,771 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:23,394 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:23,569 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:23,747 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:23,964 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:24,140 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:24,317 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:24,524 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:24,717 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:24,896 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:25,094 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:25,274 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:25,451 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:25,649 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:25,825 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:26,004 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:26,203 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:26,380 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:26,557 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:26,756 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:26,931 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:27,106 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:27,314 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:27,522 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:27,698 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:27,900 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:28,076 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:28,253 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 05:30:28,451 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:28,734 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:28,922 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:29,126 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:29,504 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 808 DAG size of output: 806 [2019-10-07 05:30:29,696 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:29,911 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:30,101 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:30,293 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:30,493 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 806 [2019-10-07 05:30:30,730 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 05:30:30,731 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 05:30:30,742 INFO L168 Benchmark]: Toolchain (without parser) took 66843.32 ms. Allocated memory was 135.3 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 96.0 MB in the beginning and 311.3 MB in the end (delta: -215.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2019-10-07 05:30:30,743 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 135.3 MB. Free memory is still 118.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 05:30:30,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1327.83 ms. Allocated memory was 135.3 MB in the beginning and 201.3 MB in the end (delta: 66.1 MB). Free memory was 95.5 MB in the beginning and 134.8 MB in the end (delta: -39.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2019-10-07 05:30:30,750 INFO L168 Benchmark]: Boogie Preprocessor took 209.91 ms. Allocated memory is still 201.3 MB. Free memory was 134.8 MB in the beginning and 125.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 05:30:30,753 INFO L168 Benchmark]: RCFGBuilder took 2535.65 ms. Allocated memory was 201.3 MB in the beginning and 262.1 MB in the end (delta: 60.8 MB). Free memory was 125.1 MB in the beginning and 131.0 MB in the end (delta: -5.9 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. [2019-10-07 05:30:30,754 INFO L168 Benchmark]: TraceAbstraction took 62765.55 ms. Allocated memory was 262.1 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 131.0 MB in the beginning and 311.3 MB in the end (delta: -180.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2019-10-07 05:30:30,757 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 135.3 MB. Free memory is still 118.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1327.83 ms. Allocated memory was 135.3 MB in the beginning and 201.3 MB in the end (delta: 66.1 MB). Free memory was 95.5 MB in the beginning and 134.8 MB in the end (delta: -39.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 209.91 ms. Allocated memory is still 201.3 MB. Free memory was 134.8 MB in the beginning and 125.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2535.65 ms. Allocated memory was 201.3 MB in the beginning and 262.1 MB in the end (delta: 60.8 MB). Free memory was 125.1 MB in the beginning and 131.0 MB in the end (delta: -5.9 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 62765.55 ms. Allocated memory was 262.1 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 131.0 MB in the beginning and 311.3 MB in the end (delta: -180.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...