./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer --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 71e8f27c3ba4176f5af8e2d76855bfc0208f8e20 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-30 00:33:31,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:33:31,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:33:31,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:33:31,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:33:31,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:33:31,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:33:31,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:33:31,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:33:31,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:33:31,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:33:31,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:33:31,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:33:31,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:33:31,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:33:31,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:33:31,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:33:31,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:33:31,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:33:31,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:33:31,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:33:31,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:33:31,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:33:31,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:33:31,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:33:31,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:33:31,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:33:31,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:33:31,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:33:31,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:33:31,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:33:31,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:33:31,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:33:31,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:33:31,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:33:31,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:33:31,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:33:31,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:33:31,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:33:31,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:33:31,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:33:31,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:33:31,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:33:31,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:33:31,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:33:31,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:33:31,464 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:33:31,464 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:33:31,465 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:33:31,465 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:33:31,465 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:33:31,466 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:33:31,466 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:33:31,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:33:31,467 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:33:31,467 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:33:31,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:33:31,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:33:31,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:33:31,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:33:31,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:33:31,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:33:31,469 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:33:31,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:33:31,470 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:33:31,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:33:31,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:33:31,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:33:31,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:33:31,471 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:33:31,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:33:31,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:33:31,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:33:31,472 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:33:31,474 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:33:31,474 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-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71e8f27c3ba4176f5af8e2d76855bfc0208f8e20 [2020-11-30 00:33:31,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:33:31,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:33:31,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:33:31,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:33:31,829 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:33:31,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2020-11-30 00:33:31,925 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/data/87f5735ac/6b1442ae7ca940cca1cf16ad84aeb973/FLAG61a67e8e2 [2020-11-30 00:33:32,574 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:33:32,575 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2020-11-30 00:33:32,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/data/87f5735ac/6b1442ae7ca940cca1cf16ad84aeb973/FLAG61a67e8e2 [2020-11-30 00:33:32,843 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/data/87f5735ac/6b1442ae7ca940cca1cf16ad84aeb973 [2020-11-30 00:33:32,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:33:32,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:33:32,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:33:32,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:33:32,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:33:32,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:33:32" (1/1) ... [2020-11-30 00:33:32,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4c1ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:32, skipping insertion in model container [2020-11-30 00:33:32,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:33:32" (1/1) ... [2020-11-30 00:33:32,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:33:32,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:33:33,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:33:33,430 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:33:33,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:33:33,599 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:33:33,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33 WrapperNode [2020-11-30 00:33:33,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:33:33,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:33:33,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:33:33,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:33:33,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (1/1) ... [2020-11-30 00:33:33,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (1/1) ... [2020-11-30 00:33:33,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:33:33,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:33:33,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:33:33,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:33:33,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (1/1) ... [2020-11-30 00:33:33,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (1/1) ... [2020-11-30 00:33:33,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (1/1) ... [2020-11-30 00:33:33,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (1/1) ... [2020-11-30 00:33:33,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (1/1) ... [2020-11-30 00:33:33,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (1/1) ... [2020-11-30 00:33:33,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (1/1) ... [2020-11-30 00:33:33,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:33:33,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:33:33,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:33:33,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:33:33,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:33:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:33:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:33:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:33:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:33:35,105 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:33:35,107 INFO L298 CfgBuilder]: Removed 118 assume(true) statements. [2020-11-30 00:33:35,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:33:35 BoogieIcfgContainer [2020-11-30 00:33:35,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:33:35,112 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:33:35,112 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:33:35,116 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:33:35,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:33:35,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:33:32" (1/3) ... [2020-11-30 00:33:35,119 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fe3dbc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:33:35, skipping insertion in model container [2020-11-30 00:33:35,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:33:35,119 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:33:33" (2/3) ... [2020-11-30 00:33:35,120 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fe3dbc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:33:35, skipping insertion in model container [2020-11-30 00:33:35,120 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:33:35,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:33:35" (3/3) ... [2020-11-30 00:33:35,123 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2020-11-30 00:33:35,194 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:33:35,195 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:33:35,195 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:33:35,196 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:33:35,196 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:33:35,196 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:33:35,197 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:33:35,197 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:33:35,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states. [2020-11-30 00:33:35,268 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-30 00:33:35,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:33:35,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:33:35,277 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:35,277 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:35,281 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:33:35,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states. [2020-11-30 00:33:35,293 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-30 00:33:35,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:33:35,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:33:35,299 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:35,300 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:35,312 INFO L794 eck$LassoCheckResult]: Stem: 52#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 24#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 72#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 86#L75true main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 79#L927true assume 0 != main_~tmp~7; 29#L903true ~switchedOnBeforeTS~0 := 0; 46#L801true havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 19#L822-1true [2020-11-30 00:33:35,313 INFO L796 eck$LassoCheckResult]: Loop: 19#L822-1true assume !false; 36#L570true assume test_~splverifierCounter~0 < 4; 55#L571true test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 60#L579true assume !(0 != test_~tmp~3); 61#L579-1true test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 42#L589true assume !(0 != test_~tmp___0~0); 45#L589-1true test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 9#L599true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 27#L607-2true havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 10#L727true __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 17#L811true assume !(0 != ~pumpRunning~0); 75#L642true assume !(0 != ~systemActive~0); 66#L649true havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 3#L537true __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 14#L822true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 19#L822-1true [2020-11-30 00:33:35,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:35,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:33:35,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:35,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231613790] [2020-11-30 00:33:35,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:35,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:35,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:35,829 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:35,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:35,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1011437967, now seen corresponding path program 1 times [2020-11-30 00:33:35,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:35,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637070630] [2020-11-30 00:33:35,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:33:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:33:35,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637070630] [2020-11-30 00:33:35,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:33:35,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:33:35,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242237757] [2020-11-30 00:33:35,924 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:33:35,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:33:35,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:33:35,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:33:35,948 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 3 states. [2020-11-30 00:33:36,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:33:36,014 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2020-11-30 00:33:36,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:33:36,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2020-11-30 00:33:36,031 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 00:33:36,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2020-11-30 00:33:36,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2020-11-30 00:33:36,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2020-11-30 00:33:36,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2020-11-30 00:33:36,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:33:36,044 INFO L691 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-30 00:33:36,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2020-11-30 00:33:36,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-11-30 00:33:36,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-30 00:33:36,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2020-11-30 00:33:36,094 INFO L714 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-30 00:33:36,095 INFO L594 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-30 00:33:36,095 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:33:36,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2020-11-30 00:33:36,099 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 00:33:36,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:33:36,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:33:36,101 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:36,101 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:36,101 INFO L794 eck$LassoCheckResult]: Stem: 239#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 217#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 218#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 252#L75 main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 253#L927 assume 0 != main_~tmp~7; 219#L903 ~switchedOnBeforeTS~0 := 0; 220#L801 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 203#L822-1 [2020-11-30 00:33:36,101 INFO L796 eck$LassoCheckResult]: Loop: 203#L822-1 assume !false; 212#L570 assume test_~splverifierCounter~0 < 4; 225#L571 test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 242#L579 assume !(0 != test_~tmp~3); 246#L579-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 228#L589 assume !(0 != test_~tmp___0~0); 230#L589-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 197#L599 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 199#L607-2 havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 193#L727 __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 194#L811 assume !(0 != ~pumpRunning~0); 208#L642 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 247#L674 assume !(0 == ~pumpRunning~0); 248#L649 havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 180#L537 __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 181#L822 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 203#L822-1 [2020-11-30 00:33:36,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:36,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:33:36,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:36,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737228396] [2020-11-30 00:33:36,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:36,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:36,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:36,343 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:36,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:36,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1258195141, now seen corresponding path program 1 times [2020-11-30 00:33:36,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:36,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822223946] [2020-11-30 00:33:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:33:36,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:33:36,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822223946] [2020-11-30 00:33:36,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:33:36,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:33:36,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175238650] [2020-11-30 00:33:36,366 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:33:36,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:33:36,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:33:36,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:33:36,368 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand 3 states. [2020-11-30 00:33:36,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:33:36,550 INFO L93 Difference]: Finished difference Result 126 states and 170 transitions. [2020-11-30 00:33:36,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:33:36,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 170 transitions. [2020-11-30 00:33:36,556 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 88 [2020-11-30 00:33:36,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 170 transitions. [2020-11-30 00:33:36,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2020-11-30 00:33:36,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2020-11-30 00:33:36,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 170 transitions. [2020-11-30 00:33:36,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:33:36,573 INFO L691 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2020-11-30 00:33:36,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 170 transitions. [2020-11-30 00:33:36,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-11-30 00:33:36,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-30 00:33:36,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 170 transitions. [2020-11-30 00:33:36,592 INFO L714 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2020-11-30 00:33:36,592 INFO L594 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2020-11-30 00:33:36,592 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:33:36,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 170 transitions. [2020-11-30 00:33:36,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 88 [2020-11-30 00:33:36,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:33:36,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:33:36,596 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:36,596 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:36,596 INFO L794 eck$LassoCheckResult]: Stem: 451#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 424#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 425#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 467#L75 main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 470#L927 assume 0 != main_~tmp~7; 429#L903 ~switchedOnBeforeTS~0 := 0; 430#L801 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 412#L822-1 [2020-11-30 00:33:36,597 INFO L796 eck$LassoCheckResult]: Loop: 412#L822-1 assume !false; 418#L570 assume test_~splverifierCounter~0 < 4; 435#L571 test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 490#L579 assume !(0 != test_~tmp~3); 487#L579-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 485#L589 assume !(0 != test_~tmp___0~0); 483#L589-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 482#L599 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 480#L607-2 havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 405#L727 __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 406#L811 assume !(0 != ~pumpRunning~0); 417#L642 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 461#L674 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret75, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 445#L545 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 446#L550 isHighWaterLevel_#t~ret75 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret75;havoc isHighWaterLevel_#t~ret75; 452#L776 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 453#L776-2 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 391#L782 processEnvironment_#t~ret57 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret57;havoc processEnvironment_#t~ret57; 392#L678 assume !(0 != processEnvironment_~tmp~4); 464#L649 havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 389#L537 __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 390#L822 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 412#L822-1 [2020-11-30 00:33:36,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:36,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:33:36,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:36,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169278375] [2020-11-30 00:33:36,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:36,697 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:36,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:36,821 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:36,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:36,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1417181583, now seen corresponding path program 1 times [2020-11-30 00:33:36,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:36,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328185994] [2020-11-30 00:33:36,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:33:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:33:36,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328185994] [2020-11-30 00:33:36,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:33:36,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:33:36,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686369828] [2020-11-30 00:33:36,897 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:33:36,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:33:36,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:33:36,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:33:36,898 INFO L87 Difference]: Start difference. First operand 126 states and 170 transitions. cyclomatic complexity: 46 Second operand 5 states. [2020-11-30 00:33:37,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:33:37,324 INFO L93 Difference]: Finished difference Result 466 states and 633 transitions. [2020-11-30 00:33:37,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:33:37,325 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 466 states and 633 transitions. [2020-11-30 00:33:37,332 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 325 [2020-11-30 00:33:37,349 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 466 states to 466 states and 633 transitions. [2020-11-30 00:33:37,349 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 466 [2020-11-30 00:33:37,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 466 [2020-11-30 00:33:37,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 466 states and 633 transitions. [2020-11-30 00:33:37,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:33:37,365 INFO L691 BuchiCegarLoop]: Abstraction has 466 states and 633 transitions. [2020-11-30 00:33:37,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states and 633 transitions. [2020-11-30 00:33:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 242. [2020-11-30 00:33:37,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-11-30 00:33:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2020-11-30 00:33:37,409 INFO L714 BuchiCegarLoop]: Abstraction has 242 states and 321 transitions. [2020-11-30 00:33:37,409 INFO L594 BuchiCegarLoop]: Abstraction has 242 states and 321 transitions. [2020-11-30 00:33:37,409 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:33:37,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 321 transitions. [2020-11-30 00:33:37,412 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2020-11-30 00:33:37,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:33:37,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:33:37,414 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:37,414 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:37,414 INFO L794 eck$LassoCheckResult]: Stem: 1070#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1039#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 1040#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1089#L75 main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 1094#L927 assume 0 != main_~tmp~7; 1044#L903 ~switchedOnBeforeTS~0 := 0; 1045#L801 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1055#L822-1 [2020-11-30 00:33:37,415 INFO L796 eck$LassoCheckResult]: Loop: 1055#L822-1 assume !false; 1217#L570 assume test_~splverifierCounter~0 < 4; 1218#L571 test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 1222#L579 assume !(0 != test_~tmp~3); 1220#L579-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 1205#L589 assume !(0 != test_~tmp___0~0); 1203#L589-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 1202#L599 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1200#L607-2 havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1199#L727 __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 1030#L811 assume !(0 != ~pumpRunning~0); 1031#L642 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1082#L674 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret75, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 1064#L545 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 1065#L550 isHighWaterLevel_#t~ret75 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret75;havoc isHighWaterLevel_#t~ret75; 1071#L776 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1072#L776-2 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 1002#L782 processEnvironment_#t~ret57 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret57;havoc processEnvironment_#t~ret57; 1003#L678 assume !(0 != processEnvironment_~tmp~4); 1085#L649 havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 1086#L537 __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 1023#L822 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1024#L727-1 __utac_acc__Specification5_spec__3_#t~ret78 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 1054#L826 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1055#L822-1 [2020-11-30 00:33:37,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:37,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-30 00:33:37,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:37,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264307935] [2020-11-30 00:33:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:37,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:37,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:37,509 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:37,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:37,510 INFO L82 PathProgramCache]: Analyzing trace with hash -406884308, now seen corresponding path program 1 times [2020-11-30 00:33:37,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:37,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085290621] [2020-11-30 00:33:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:37,518 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:37,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:37,528 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:37,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:37,529 INFO L82 PathProgramCache]: Analyzing trace with hash -547477646, now seen corresponding path program 1 times [2020-11-30 00:33:37,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:37,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091401375] [2020-11-30 00:33:37,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:37,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:37,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:37,693 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:37,933 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-30 00:35:15,924 WARN L193 SmtUtils]: Spent 1.63 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:36:11,791 WARN L193 SmtUtils]: Spent 55.84 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:36:12,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:36:12 BoogieIcfgContainer [2020-11-30 00:36:12,048 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:36:12,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:36:12,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:36:12,049 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:36:12,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:33:35" (3/4) ... [2020-11-30 00:36:12,052 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:36:12,122 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f7e0c776-5712-40f5-ae69-231ed7ca9c7b/bin/uautomizer/witness.graphml [2020-11-30 00:36:12,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:36:12,124 INFO L168 Benchmark]: Toolchain (without parser) took 159268.57 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 68.4 MB in the beginning and 40.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 69.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:12,124 INFO L168 Benchmark]: CDTParser took 0.95 ms. Allocated memory is still 92.3 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:36:12,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.85 ms. Allocated memory is still 92.3 MB. Free memory was 68.4 MB in the beginning and 59.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:12,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.54 ms. Allocated memory is still 92.3 MB. Free memory was 59.0 MB in the beginning and 55.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:12,127 INFO L168 Benchmark]: Boogie Preprocessor took 59.38 ms. Allocated memory is still 92.3 MB. Free memory was 55.9 MB in the beginning and 53.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:12,127 INFO L168 Benchmark]: RCFGBuilder took 1320.54 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.5 MB in the beginning and 52.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:12,128 INFO L168 Benchmark]: BuchiAutomizer took 156936.84 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 52.1 MB in the beginning and 42.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:12,129 INFO L168 Benchmark]: Witness Printer took 73.77 ms. Allocated memory is still 134.2 MB. Free memory was 42.2 MB in the beginning and 40.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:12,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 ms. Allocated memory is still 92.3 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 743.85 ms. Allocated memory is still 92.3 MB. Free memory was 68.4 MB in the beginning and 59.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 126.54 ms. Allocated memory is still 92.3 MB. Free memory was 59.0 MB in the beginning and 55.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.38 ms. Allocated memory is still 92.3 MB. Free memory was 55.9 MB in the beginning and 53.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1320.54 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.5 MB in the beginning and 52.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 156936.84 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 52.1 MB in the beginning and 42.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. * Witness Printer took 73.77 ms. Allocated memory is still 134.2 MB. Free memory was 42.2 MB in the beginning and 40.1 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 242 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 156.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 155.7s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 224 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 242 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 390 SDtfs, 646 SDslu, 495 SDs, 0 SdLazy, 126 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 569]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=20576} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=20576, NULL=20593, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@211a125=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25dcf4ab=0, NULL=20594, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a0ea638=0, tmp=0, NULL=0, NULL=20603, tmp___1=0, NULL=20586, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a778b10=0, NULL=0, NULL=20585, NULL=20595, cleanupTimeShifts=4, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=20588, tmp___0=0, NULL=20589, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=20597, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@690dfce2=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1317c22c=0, \result=1, NULL=0, retValue_acc=0, NULL=0, retValue_acc=1, tmp=1, NULL=20583, NULL=20587, head=0, tmp=0, NULL=0, NULL=0, NULL=20584, NULL=0, NULL=0, NULL=0, NULL=20590, NULL=0, NULL=0, NULL=0, NULL=20581, NULL=20599, NULL=20601, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35bbd287=0, tmp=1, tmp___0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a2254a5=0, NULL=0, NULL=20578, switchedOnBeforeTS=0, NULL=20582, NULL=20600, \result=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, retValue_acc=0, NULL=20579, tmp___0=0, \result=0, NULL=20602, NULL=20604, NULL=20580, NULL=20591, NULL=20577, retValue_acc=1, tmp___2=66, splverifierCounter=0, NULL=0, NULL=20596, NULL=20598, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f0c33a0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@284e5769=66, NULL=20592, retValue_acc=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L258] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int waterLevel = 1; [L463] int methaneLevelCritical = 0; [L630] int pumpRunning = 0; [L631] int systemActive = 1; [L795] int switchedOnBeforeTS ; [L844] int cleanupTimeShifts = 4; [L918] int retValue_acc ; [L919] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L925] tmp = valid_product() [L927] COND TRUE \read(tmp) [L800] switchedOnBeforeTS = 0 [L560] int splverifierCounter ; [L561] int tmp ; [L562] int tmp___0 ; [L563] int tmp___1 ; [L564] int tmp___2 ; [L567] splverifierCounter = 0 Loop: [L569] COND TRUE 1 [L571] COND TRUE splverifierCounter < 4 [L577] tmp = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp)) [L587] tmp___0 = __VERIFIER_nondet_int() [L589] COND FALSE !(\read(tmp___0)) [L597] tmp___2 = __VERIFIER_nondet_int() [L599] COND TRUE \read(tmp___2) [L790] systemActive = 1 [L723] int retValue_acc ; [L726] retValue_acc = pumpRunning [L727] return (retValue_acc); [L809] switchedOnBeforeTS = isPumpRunning() [L642] COND FALSE !(\read(pumpRunning)) [L649] COND TRUE \read(systemActive) [L671] int tmp ; [L674] COND TRUE ! pumpRunning [L768] int retValue_acc ; [L769] int tmp ; [L770] int tmp___0 ; [L542] int retValue_acc ; [L545] COND TRUE waterLevel < 2 [L546] retValue_acc = 1 [L547] return (retValue_acc); [L774] tmp = isHighWaterSensorDry() [L776] COND TRUE \read(tmp) [L777] tmp___0 = 0 [L781] retValue_acc = tmp___0 [L782] return (retValue_acc); [L676] tmp = isHighWaterLevel() [L678] COND FALSE !(\read(tmp)) [L815] int tmp ; [L816] int tmp___0 ; [L533] int retValue_acc ; [L536] retValue_acc = waterLevel [L537] return (retValue_acc); [L820] tmp = getWaterLevel() [L822] COND TRUE tmp != 2 [L723] int retValue_acc ; [L726] retValue_acc = pumpRunning [L727] return (retValue_acc); [L824] tmp___0 = isPumpRunning() [L826] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...