./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a99cd47cb89075c534de557ec34a8319cd4d0f3080d4e7f4d1690c11fbbfbd6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:25:46,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:25:46,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:25:46,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:25:46,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:25:46,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:25:46,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:25:46,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:25:46,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:25:46,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:25:46,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:25:46,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:25:46,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:25:46,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:25:46,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:25:46,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:25:46,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:25:46,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:25:46,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:25:46,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:25:46,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:25:46,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:25:46,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:25:46,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:25:46,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:25:46,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:25:46,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:25:46,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:25:46,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:25:46,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:25:46,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:25:46,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:25:46,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:25:46,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:25:46,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:25:46,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:25:46,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:25:46,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:25:46,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:25:46,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:25:46,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:25:46,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:25:46,273 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:25:46,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:25:46,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:25:46,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:25:46,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:25:46,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:25:46,277 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:25:46,278 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:25:46,278 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:25:46,278 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:25:46,279 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:25:46,280 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:25:46,280 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:25:46,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:25:46,281 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:25:46,281 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:25:46,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:25:46,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:25:46,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:25:46,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:25:46,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:25:46,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:25:46,283 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:25:46,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:25:46,283 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:25:46,284 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:25:46,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:25:46,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:25:46,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:25:46,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:25:46,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:25:46,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:25:46,290 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:25:46,291 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a99cd47cb89075c534de557ec34a8319cd4d0f3080d4e7f4d1690c11fbbfbd6 [2021-10-28 23:25:46,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:25:46,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:25:46,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:25:46,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:25:46,701 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:25:46,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c [2021-10-28 23:25:46,795 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/data/473158a19/0c6c9bbe9b864ea3b580c623e0379bd0/FLAGc137bffe4 [2021-10-28 23:25:47,544 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:25:47,545 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c [2021-10-28 23:25:47,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/data/473158a19/0c6c9bbe9b864ea3b580c623e0379bd0/FLAGc137bffe4 [2021-10-28 23:25:47,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/data/473158a19/0c6c9bbe9b864ea3b580c623e0379bd0 [2021-10-28 23:25:47,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:25:47,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:25:47,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:25:47,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:25:47,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:25:47,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:25:47" (1/1) ... [2021-10-28 23:25:47,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67010c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:47, skipping insertion in model container [2021-10-28 23:25:47,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:25:47" (1/1) ... [2021-10-28 23:25:47,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:25:47,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:25:48,255 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c[14789,14802] [2021-10-28 23:25:48,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:25:48,305 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:25:48,386 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/sv-benchmarks/c/product-lines/minepump_spec5_product05.cil.c[14789,14802] [2021-10-28 23:25:48,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:25:48,420 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:25:48,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48 WrapperNode [2021-10-28 23:25:48,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:25:48,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:25:48,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:25:48,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:25:48,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (1/1) ... [2021-10-28 23:25:48,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (1/1) ... [2021-10-28 23:25:48,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:25:48,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:25:48,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:25:48,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:25:48,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (1/1) ... [2021-10-28 23:25:48,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (1/1) ... [2021-10-28 23:25:48,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (1/1) ... [2021-10-28 23:25:48,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (1/1) ... [2021-10-28 23:25:48,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (1/1) ... [2021-10-28 23:25:48,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (1/1) ... [2021-10-28 23:25:48,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (1/1) ... [2021-10-28 23:25:48,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:25:48,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:25:48,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:25:48,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:25:48,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (1/1) ... [2021-10-28 23:25:48,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:48,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:48,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:48,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:25:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:25:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:25:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:25:48,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:25:49,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:25:49,854 INFO L299 CfgBuilder]: Removed 110 assume(true) statements. [2021-10-28 23:25:49,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:49 BoogieIcfgContainer [2021-10-28 23:25:49,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:25:49,861 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:25:49,861 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:25:49,866 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:25:49,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:49,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:25:47" (1/3) ... [2021-10-28 23:25:49,870 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21d98fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:25:49, skipping insertion in model container [2021-10-28 23:25:49,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:49,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:48" (2/3) ... [2021-10-28 23:25:49,871 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21d98fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:25:49, skipping insertion in model container [2021-10-28 23:25:49,872 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:49,872 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:49" (3/3) ... [2021-10-28 23:25:49,874 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product05.cil.c [2021-10-28 23:25:49,944 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:25:49,944 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:25:49,944 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:25:49,944 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:25:49,945 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:25:49,945 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:25:49,945 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:25:49,945 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:25:49,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:50,014 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 23:25:50,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:50,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:50,025 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:50,025 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:50,025 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:25:50,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:50,045 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 23:25:50,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:50,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:50,047 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:50,048 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:50,061 INFO L791 eck$LassoCheckResult]: Stem: 64#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 48#L-1true havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~5, main_~tmp~6;havoc main_~retValue_acc~5;havoc main_~tmp~6; 60#L890true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 26#L898true main_#t~ret67 := valid_product_#res;main_~tmp~6 := main_#t~ret67;havoc main_#t~ret67; 25#L774true assume 0 != main_~tmp~6; 15#L747true ~switchedOnBeforeTS~0 := 0; 43#L59true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 56#L80-1true [2021-10-28 23:25:50,063 INFO L793 eck$LassoCheckResult]: Loop: 56#L80-1true assume !false; 6#L259true assume test_~splverifierCounter~0 < 4; 75#L260true test_~tmp~2 := test_#t~nondet28;havoc test_#t~nondet28; 27#L268true assume !(0 != test_~tmp~2); 4#L268-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 76#L278true assume !(0 != test_~tmp___0~1); 35#L278-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 32#L288true assume 0 != test_~tmp___2~0; 58#L294-2true havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 50#L204true __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 20#L69true assume !(0 != ~pumpRunning~0); 65#L119true assume !(0 != ~systemActive~0); 8#L126true havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 28#L863true __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 12#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 56#L80-1true [2021-10-28 23:25:50,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:50,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:25:50,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:50,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625364102] [2021-10-28 23:25:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:50,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:50,440 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:50,692 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:50,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:50,710 INFO L85 PathProgramCache]: Analyzing trace with hash 93981420, now seen corresponding path program 1 times [2021-10-28 23:25:50,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:50,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604501888] [2021-10-28 23:25:50,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:50,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:50,727 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:50,748 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:50,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:50,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2028006630, now seen corresponding path program 1 times [2021-10-28 23:25:50,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:50,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838590007] [2021-10-28 23:25:50,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:50,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:50,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:50,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:50,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838590007] [2021-10-28 23:25:50,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838590007] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:50,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:50,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:25:50,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410745129] [2021-10-28 23:25:51,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:51,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:25:51,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:25:51,182 INFO L87 Difference]: Start difference. First operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:51,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:51,378 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2021-10-28 23:25:51,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:25:51,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 100 transitions. [2021-10-28 23:25:51,383 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-28 23:25:51,388 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 93 transitions. [2021-10-28 23:25:51,389 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-28 23:25:51,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-10-28 23:25:51,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2021-10-28 23:25:51,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:25:51,392 INFO L681 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-28 23:25:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2021-10-28 23:25:51,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-28 23:25:51,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.3676470588235294) internal successors, (93), 67 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:51,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2021-10-28 23:25:51,425 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-28 23:25:51,425 INFO L587 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-28 23:25:51,426 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:25:51,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 93 transitions. [2021-10-28 23:25:51,427 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-28 23:25:51,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:51,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:51,428 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:51,429 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:51,429 INFO L791 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 229#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~5, main_~tmp~6;havoc main_~retValue_acc~5;havoc main_~tmp~6; 230#L890 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 205#L898 main_#t~ret67 := valid_product_#res;main_~tmp~6 := main_#t~ret67;havoc main_#t~ret67; 204#L774 assume 0 != main_~tmp~6; 190#L747 ~switchedOnBeforeTS~0 := 0; 191#L59 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 185#L80-1 [2021-10-28 23:25:51,429 INFO L793 eck$LassoCheckResult]: Loop: 185#L80-1 assume !false; 172#L259 assume test_~splverifierCounter~0 < 4; 173#L260 test_~tmp~2 := test_#t~nondet28;havoc test_#t~nondet28; 206#L268 assume !(0 != test_~tmp~2); 168#L268-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 169#L278 assume !(0 != test_~tmp___0~1); 202#L278-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 211#L288 assume 0 != test_~tmp___2~0; 213#L294-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 231#L204 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 196#L69 assume !(0 != ~pumpRunning~0); 197#L119 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 199#L151 assume !(0 != ~pumpRunning~0); 175#L126 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 176#L863 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 183#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 185#L80-1 [2021-10-28 23:25:51,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:51,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:25:51,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:51,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232039088] [2021-10-28 23:25:51,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:51,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:51,480 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:51,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:51,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:51,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1402071741, now seen corresponding path program 1 times [2021-10-28 23:25:51,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:51,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347867370] [2021-10-28 23:25:51,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:51,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:51,548 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:51,556 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:51,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:51,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1576832375, now seen corresponding path program 1 times [2021-10-28 23:25:51,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:51,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337514418] [2021-10-28 23:25:51,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:51,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:51,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:51,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337514418] [2021-10-28 23:25:51,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337514418] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:51,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:51,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:25:51,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845580301] [2021-10-28 23:25:51,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:51,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:25:51,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:25:51,784 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. cyclomatic complexity: 27 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:51,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:51,930 INFO L93 Difference]: Finished difference Result 182 states and 252 transitions. [2021-10-28 23:25:51,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:25:51,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 252 transitions. [2021-10-28 23:25:51,936 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2021-10-28 23:25:51,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 252 transitions. [2021-10-28 23:25:51,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 182 [2021-10-28 23:25:51,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182 [2021-10-28 23:25:51,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 252 transitions. [2021-10-28 23:25:51,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:25:51,942 INFO L681 BuchiCegarLoop]: Abstraction has 182 states and 252 transitions. [2021-10-28 23:25:51,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 252 transitions. [2021-10-28 23:25:51,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 129. [2021-10-28 23:25:51,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.3565891472868217) internal successors, (175), 128 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:51,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 175 transitions. [2021-10-28 23:25:51,955 INFO L704 BuchiCegarLoop]: Abstraction has 129 states and 175 transitions. [2021-10-28 23:25:51,955 INFO L587 BuchiCegarLoop]: Abstraction has 129 states and 175 transitions. [2021-10-28 23:25:51,955 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:25:51,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 175 transitions. [2021-10-28 23:25:51,957 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2021-10-28 23:25:51,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:51,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:51,958 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:51,958 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:51,959 INFO L791 eck$LassoCheckResult]: Stem: 507#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 499#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~5, main_~tmp~6;havoc main_~retValue_acc~5;havoc main_~tmp~6; 500#L890 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 473#L898 main_#t~ret67 := valid_product_#res;main_~tmp~6 := main_#t~ret67;havoc main_#t~ret67; 472#L774 assume 0 != main_~tmp~6; 456#L747 ~switchedOnBeforeTS~0 := 0; 457#L59 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 494#L80-1 [2021-10-28 23:25:51,959 INFO L793 eck$LassoCheckResult]: Loop: 494#L80-1 assume !false; 438#L259 assume test_~splverifierCounter~0 < 4; 439#L260 test_~tmp~2 := test_#t~nondet28;havoc test_#t~nondet28; 474#L268 assume !(0 != test_~tmp~2); 434#L268-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 435#L278 assume !(0 != test_~tmp___0~1); 468#L278-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 479#L288 assume 0 != test_~tmp___2~0; 481#L294-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 501#L204 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 462#L69 assume !(0 != ~pumpRunning~0); 463#L119 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 465#L151 assume !(0 != ~pumpRunning~0); 443#L126 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 444#L863 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 450#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 451#L204-1 __utac_acc__Specification5_spec__3_#t~ret9 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 506#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 494#L80-1 [2021-10-28 23:25:51,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:51,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 23:25:51,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:51,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899691719] [2021-10-28 23:25:51,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:51,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:52,001 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:52,048 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:52,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:52,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1228773470, now seen corresponding path program 1 times [2021-10-28 23:25:52,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:52,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748349352] [2021-10-28 23:25:52,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:52,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:52,054 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:52,061 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash 787528740, now seen corresponding path program 1 times [2021-10-28 23:25:52,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:52,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506143756] [2021-10-28 23:25:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:52,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:52,098 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:52,144 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:56,453 WARN L207 SmtUtils]: Spent 1.07 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:28:12,874 WARN L207 SmtUtils]: Spent 37.25 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:28:13,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:28:13 BoogieIcfgContainer [2021-10-28 23:28:13,038 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:28:13,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:28:13,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:28:13,039 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:28:13,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:49" (3/4) ... [2021-10-28 23:28:13,043 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:28:13,113 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:28:13,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:28:13,115 INFO L168 Benchmark]: Toolchain (without parser) took 145272.78 ms. Allocated memory was 121.6 MB in the beginning and 207.6 MB in the end (delta: 86.0 MB). Free memory was 91.8 MB in the beginning and 75.5 MB in the end (delta: 16.2 MB). Peak memory consumption was 103.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:13,116 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 121.6 MB. Free memory was 74.7 MB in the beginning and 74.7 MB in the end (delta: 63.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:13,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.10 ms. Allocated memory is still 121.6 MB. Free memory was 91.8 MB in the beginning and 88.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:13,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.17 ms. Allocated memory is still 121.6 MB. Free memory was 88.1 MB in the beginning and 84.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:13,118 INFO L168 Benchmark]: Boogie Preprocessor took 64.16 ms. Allocated memory is still 121.6 MB. Free memory was 84.9 MB in the beginning and 82.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:13,118 INFO L168 Benchmark]: RCFGBuilder took 1289.65 ms. Allocated memory was 121.6 MB in the beginning and 169.9 MB in the end (delta: 48.2 MB). Free memory was 82.9 MB in the beginning and 129.8 MB in the end (delta: -46.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:13,119 INFO L168 Benchmark]: BuchiAutomizer took 143177.45 ms. Allocated memory was 169.9 MB in the beginning and 207.6 MB in the end (delta: 37.7 MB). Free memory was 129.3 MB in the beginning and 77.6 MB in the end (delta: 51.7 MB). Peak memory consumption was 114.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:13,120 INFO L168 Benchmark]: Witness Printer took 75.01 ms. Allocated memory is still 207.6 MB. Free memory was 77.6 MB in the beginning and 75.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:13,123 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 121.6 MB. Free memory was 74.7 MB in the beginning and 74.7 MB in the end (delta: 63.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 578.10 ms. Allocated memory is still 121.6 MB. Free memory was 91.8 MB in the beginning and 88.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.17 ms. Allocated memory is still 121.6 MB. Free memory was 88.1 MB in the beginning and 84.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.16 ms. Allocated memory is still 121.6 MB. Free memory was 84.9 MB in the beginning and 82.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1289.65 ms. Allocated memory was 121.6 MB in the beginning and 169.9 MB in the end (delta: 48.2 MB). Free memory was 82.9 MB in the beginning and 129.8 MB in the end (delta: -46.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 143177.45 ms. Allocated memory was 169.9 MB in the beginning and 207.6 MB in the end (delta: 37.7 MB). Free memory was 129.3 MB in the beginning and 77.6 MB in the end (delta: 51.7 MB). Peak memory consumption was 114.9 MB. Max. memory is 16.1 GB. * Witness Printer took 75.01 ms. Allocated memory is still 207.6 MB. Free memory was 77.6 MB in the beginning and 75.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 129 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 143.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 142.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 53 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 129 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 210 SDtfs, 557 SDslu, 270 SDs, 0 SdLazy, 73 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 258]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22810} State at position 1 is {NULL=31208, NULL=0, NULL=0, NULL=0, NULL=31194, NULL=0, NULL=22810, NULL=22813, retValue_acc=0, NULL=0, NULL=0, NULL=22811, NULL=31189, NULL=31186, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a175713=0, tmp=0, NULL=0, tmp___1=0, tmp=1, NULL=31204, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dcb276=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=31192, NULL=31199, \result=0, NULL=31188, NULL=22812, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=31193, \result=1, NULL=0, NULL=0, NULL=0, NULL=31197, NULL=0, NULL=0, NULL=31207, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32eba865=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=31187, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d0aed81=0, NULL=31196, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c5b3e98=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f42d18a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4478e8a8=54, retValue_acc=1, NULL=31203, NULL=0, NULL=0, NULL=31185, NULL=0, NULL=31209, retValue_acc=1, tmp___2=54, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=31191, NULL=31206, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d605ca8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21b4f99c=0, NULL=31195, tmp=0, head=0, retValue_acc=0, NULL=31200, NULL=31198, NULL=0, NULL=31190, NULL=31205, NULL=31201, NULL=31202} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L109] int pumpRunning = 0; [L110] int systemActive = 1; [L482] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L688] int cleanupTimeShifts = 4; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L765] int retValue_acc ; [L766] int tmp ; [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] return (retValue_acc); [L772] tmp = valid_product() [L774] COND TRUE \read(tmp) [L58] switchedOnBeforeTS = 0 [L249] int splverifierCounter ; [L250] int tmp ; [L251] int tmp___0 ; [L252] int tmp___1 ; [L253] int tmp___2 ; [L256] splverifierCounter = 0 Loop: [L258] COND TRUE 1 [L260] COND TRUE splverifierCounter < 4 [L266] tmp = __VERIFIER_nondet_int() [L268] COND FALSE !(\read(tmp)) [L276] tmp___0 = __VERIFIER_nondet_int() [L278] COND FALSE !(\read(tmp___0)) [L286] tmp___2 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp___2) [L200] int retValue_acc ; [L203] retValue_acc = pumpRunning [L204] return (retValue_acc); [L67] switchedOnBeforeTS = isPumpRunning() [L119] COND FALSE !(\read(pumpRunning)) [L126] COND TRUE \read(systemActive) [L148] int tmp ; [L151] COND FALSE !(\read(pumpRunning)) [L73] int tmp ; [L74] int tmp___0 ; [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L200] int retValue_acc ; [L203] retValue_acc = pumpRunning [L204] return (retValue_acc); [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:28:13,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8cef30-82ce-41a5-af70-aee4bb59577d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...