./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product34_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product34_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/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 ae55322c9e2147e3768d03287d4758f350a7d088 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-08 13:50:20,417 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 13:50:20,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 13:50:20,424 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 13:50:20,425 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 13:50:20,425 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 13:50:20,426 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 13:50:20,427 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 13:50:20,428 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 13:50:20,429 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 13:50:20,430 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 13:50:20,430 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 13:50:20,430 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 13:50:20,431 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 13:50:20,431 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 13:50:20,432 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 13:50:20,432 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 13:50:20,433 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 13:50:20,434 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 13:50:20,435 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 13:50:20,435 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 13:50:20,436 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 13:50:20,437 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 13:50:20,437 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 13:50:20,437 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 13:50:20,438 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 13:50:20,438 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 13:50:20,438 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 13:50:20,439 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 13:50:20,439 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 13:50:20,439 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 13:50:20,440 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 13:50:20,440 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 13:50:20,440 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 13:50:20,440 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 13:50:20,441 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 13:50:20,441 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-08 13:50:20,450 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 13:50:20,451 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 13:50:20,451 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 13:50:20,452 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 13:50:20,452 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 13:50:20,452 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 13:50:20,452 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 13:50:20,452 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 13:50:20,452 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 13:50:20,452 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 13:50:20,453 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 13:50:20,453 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 13:50:20,453 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 13:50:20,453 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 13:50:20,453 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 13:50:20,453 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 13:50:20,453 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 13:50:20,454 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 13:50:20,454 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 13:50:20,454 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 13:50:20,454 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 13:50:20,454 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 13:50:20,454 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 13:50:20,454 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 13:50:20,454 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 13:50:20,455 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 13:50:20,455 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 13:50:20,455 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 13:50:20,455 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 13:50:20,455 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 13:50:20,455 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 13:50:20,456 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 13:50:20,456 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/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 -> ae55322c9e2147e3768d03287d4758f350a7d088 [2018-12-08 13:50:20,476 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 13:50:20,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 13:50:20,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 13:50:20,488 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 13:50:20,488 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 13:50:20,489 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product34_true-unreach-call_false-termination.cil.c [2018-12-08 13:50:20,527 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/data/92dca2a08/076d7d513d9b4f3fbec08896adf5decd/FLAG06f0a4b6a [2018-12-08 13:50:20,932 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 13:50:20,932 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/sv-benchmarks/c/product-lines/minepump_spec5_product34_true-unreach-call_false-termination.cil.c [2018-12-08 13:50:20,938 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/data/92dca2a08/076d7d513d9b4f3fbec08896adf5decd/FLAG06f0a4b6a [2018-12-08 13:50:20,947 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/data/92dca2a08/076d7d513d9b4f3fbec08896adf5decd [2018-12-08 13:50:20,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 13:50:20,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 13:50:20,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 13:50:20,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 13:50:20,952 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 13:50:20,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:50:20" (1/1) ... [2018-12-08 13:50:20,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:20, skipping insertion in model container [2018-12-08 13:50:20,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:50:20" (1/1) ... [2018-12-08 13:50:20,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 13:50:20,984 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 13:50:21,147 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:50:21,186 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 13:50:21,240 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:50:21,257 INFO L195 MainTranslator]: Completed translation [2018-12-08 13:50:21,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21 WrapperNode [2018-12-08 13:50:21,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 13:50:21,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 13:50:21,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 13:50:21,259 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 13:50:21,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (1/1) ... [2018-12-08 13:50:21,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (1/1) ... [2018-12-08 13:50:21,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 13:50:21,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 13:50:21,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 13:50:21,301 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 13:50:21,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (1/1) ... [2018-12-08 13:50:21,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (1/1) ... [2018-12-08 13:50:21,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (1/1) ... [2018-12-08 13:50:21,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (1/1) ... [2018-12-08 13:50:21,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (1/1) ... [2018-12-08 13:50:21,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (1/1) ... [2018-12-08 13:50:21,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (1/1) ... [2018-12-08 13:50:21,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 13:50:21,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 13:50:21,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 13:50:21,329 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 13:50:21,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/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 [2018-12-08 13:50:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 13:50:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 13:50:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 13:50:21,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 13:50:21,676 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 13:50:21,677 INFO L280 CfgBuilder]: Removed 112 assue(true) statements. [2018-12-08 13:50:21,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:50:21 BoogieIcfgContainer [2018-12-08 13:50:21,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 13:50:21,678 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 13:50:21,678 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 13:50:21,681 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 13:50:21,682 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 13:50:21,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 01:50:20" (1/3) ... [2018-12-08 13:50:21,683 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@278c1bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 01:50:21, skipping insertion in model container [2018-12-08 13:50:21,683 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 13:50:21,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:50:21" (2/3) ... [2018-12-08 13:50:21,683 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@278c1bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 01:50:21, skipping insertion in model container [2018-12-08 13:50:21,683 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 13:50:21,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:50:21" (3/3) ... [2018-12-08 13:50:21,685 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product34_true-unreach-call_false-termination.cil.c [2018-12-08 13:50:21,727 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 13:50:21,727 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 13:50:21,727 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 13:50:21,727 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 13:50:21,728 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 13:50:21,728 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 13:50:21,728 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 13:50:21,728 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 13:50:21,728 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 13:50:21,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2018-12-08 13:50:21,752 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2018-12-08 13:50:21,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:50:21,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:50:21,757 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:50:21,757 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:50:21,757 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 13:50:21,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2018-12-08 13:50:21,760 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2018-12-08 13:50:21,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:50:21,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:50:21,760 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:50:21,761 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:50:21,764 INFO L794 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string37.base, #t~string37.offset := #Ultimate.alloc(13);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 14#L-1true havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 17#L65true 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; 12#L73true main_#t~ret72 := valid_product_#res;main_~tmp~7 := main_#t~ret72;havoc main_#t~ret72; 16#L925true assume 0 != main_~tmp~7; 69#L901true ~switchedOnBeforeTS~0 := 0; 82#L799true havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, 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; 32#L820-1true [2018-12-08 13:50:21,764 INFO L796 eck$LassoCheckResult]: Loop: 32#L820-1true assume !false; 47#L568true assume test_~splverifierCounter~0 < 4; 72#L569true test_~tmp~3 := test_#t~nondet46;havoc test_#t~nondet46; 9#L577true assume !(0 != test_~tmp~3); 10#L577-1true test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 78#L587true assume !(0 != test_~tmp___0~0); 81#L587-1true test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 58#L597true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 68#L605-2true havoc __utac_acc__Specification5_spec__2_#t~ret69;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; 59#L725true __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 30#L809true assume !(0 != ~pumpRunning~0); 24#L640true assume !(0 != ~systemActive~0); 18#L647true havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __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; 51#L535true __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 27#L820true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 32#L820-1true [2018-12-08 13:50:21,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:50:21,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-12-08 13:50:21,769 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:50:21,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:50:21,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:21,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:50:21,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:21,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:50:21,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1011437965, now seen corresponding path program 1 times [2018-12-08 13:50:21,904 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:50:21,904 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:50:21,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:21,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:50:21,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:50:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:50:21,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:50:21,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:50:21,939 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 13:50:21,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:50:21,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:50:21,949 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2018-12-08 13:50:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:50:21,978 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2018-12-08 13:50:21,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:50:21,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2018-12-08 13:50:21,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2018-12-08 13:50:21,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2018-12-08 13:50:21,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2018-12-08 13:50:21,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2018-12-08 13:50:21,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2018-12-08 13:50:21,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 13:50:21,990 INFO L705 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2018-12-08 13:50:22,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2018-12-08 13:50:22,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-12-08 13:50:22,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-12-08 13:50:22,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2018-12-08 13:50:22,017 INFO L728 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2018-12-08 13:50:22,018 INFO L608 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2018-12-08 13:50:22,018 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 13:50:22,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2018-12-08 13:50:22,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2018-12-08 13:50:22,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:50:22,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:50:22,020 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:50:22,020 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:50:22,020 INFO L794 eck$LassoCheckResult]: Stem: 222#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string37.base, #t~string37.offset := #Ultimate.alloc(13);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 199#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 200#L65 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; 195#L73 main_#t~ret72 := valid_product_#res;main_~tmp~7 := main_#t~ret72;havoc main_#t~ret72; 196#L925 assume 0 != main_~tmp~7; 203#L901 ~switchedOnBeforeTS~0 := 0; 251#L799 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, 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; 213#L820-1 [2018-12-08 13:50:22,020 INFO L796 eck$LassoCheckResult]: Loop: 213#L820-1 assume !false; 223#L568 assume test_~splverifierCounter~0 < 4; 240#L569 test_~tmp~3 := test_#t~nondet46;havoc test_#t~nondet46; 189#L577 assume !(0 != test_~tmp~3); 191#L577-1 test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 194#L587 assume !(0 != test_~tmp___0~0); 209#L587-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 244#L597 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 246#L605-2 havoc __utac_acc__Specification5_spec__2_#t~ret69;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; 247#L725 __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 218#L809 assume !(0 != ~pumpRunning~0); 207#L640 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 192#L672 assume !(0 == ~pumpRunning~0); 180#L647 havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __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; 204#L535 __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 211#L820 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 213#L820-1 [2018-12-08 13:50:22,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:50:22,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-12-08 13:50:22,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:50:22,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:50:22,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:50:22,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:22,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:50:22,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1258195139, now seen corresponding path program 1 times [2018-12-08 13:50:22,058 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:50:22,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:50:22,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,059 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 13:50:22,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:50:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:50:22,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:50:22,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:50:22,075 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 13:50:22,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:50:22,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:50:22,076 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand 3 states. [2018-12-08 13:50:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:50:22,114 INFO L93 Difference]: Finished difference Result 126 states and 170 transitions. [2018-12-08 13:50:22,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:50:22,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 170 transitions. [2018-12-08 13:50:22,116 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 88 [2018-12-08 13:50:22,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 170 transitions. [2018-12-08 13:50:22,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2018-12-08 13:50:22,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2018-12-08 13:50:22,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 170 transitions. [2018-12-08 13:50:22,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 13:50:22,117 INFO L705 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2018-12-08 13:50:22,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 170 transitions. [2018-12-08 13:50:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-12-08 13:50:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-12-08 13:50:22,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 170 transitions. [2018-12-08 13:50:22,121 INFO L728 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2018-12-08 13:50:22,121 INFO L608 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2018-12-08 13:50:22,121 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 13:50:22,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 170 transitions. [2018-12-08 13:50:22,122 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 88 [2018-12-08 13:50:22,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:50:22,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:50:22,123 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:50:22,123 INFO L867 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] [2018-12-08 13:50:22,123 INFO L794 eck$LassoCheckResult]: Stem: 431#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string37.base, #t~string37.offset := #Ultimate.alloc(13);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 411#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 412#L65 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; 407#L73 main_#t~ret72 := valid_product_#res;main_~tmp~7 := main_#t~ret72;havoc main_#t~ret72; 408#L925 assume 0 != main_~tmp~7; 415#L901 ~switchedOnBeforeTS~0 := 0; 467#L799 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, 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; 425#L820-1 [2018-12-08 13:50:22,123 INFO L796 eck$LassoCheckResult]: Loop: 425#L820-1 assume !false; 432#L568 assume test_~splverifierCounter~0 < 4; 450#L569 test_~tmp~3 := test_#t~nondet46;havoc test_#t~nondet46; 511#L577 assume !(0 != test_~tmp~3); 509#L577-1 test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 508#L587 assume !(0 != test_~tmp___0~0); 506#L587-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 505#L597 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 503#L605-2 havoc __utac_acc__Specification5_spec__2_#t~ret69;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; 460#L725 __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 430#L809 assume !(0 != ~pumpRunning~0); 419#L640 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 405#L672 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, 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; 406#L543 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 386#L548 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 387#L774 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 470#L774-2 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 452#L780 processEnvironment_#t~ret50 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret50;havoc processEnvironment_#t~ret50; 388#L676 assume !(0 != processEnvironment_~tmp~4); 390#L647 havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __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; 416#L535 __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 423#L820 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 425#L820-1 [2018-12-08 13:50:22,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:50:22,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-12-08 13:50:22,124 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:50:22,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:50:22,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:50:22,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:22,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:50:22,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1417181585, now seen corresponding path program 1 times [2018-12-08 13:50:22,160 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:50:22,160 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:50:22,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,161 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 13:50:22,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:50:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:50:22,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:50:22,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 13:50:22,210 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 13:50:22,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 13:50:22,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 13:50:22,211 INFO L87 Difference]: Start difference. First operand 126 states and 170 transitions. cyclomatic complexity: 46 Second operand 5 states. [2018-12-08 13:50:22,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:50:22,335 INFO L93 Difference]: Finished difference Result 466 states and 633 transitions. [2018-12-08 13:50:22,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 13:50:22,335 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 466 states and 633 transitions. [2018-12-08 13:50:22,341 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 325 [2018-12-08 13:50:22,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 466 states to 466 states and 633 transitions. [2018-12-08 13:50:22,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 466 [2018-12-08 13:50:22,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 466 [2018-12-08 13:50:22,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 466 states and 633 transitions. [2018-12-08 13:50:22,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 13:50:22,348 INFO L705 BuchiCegarLoop]: Abstraction has 466 states and 633 transitions. [2018-12-08 13:50:22,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states and 633 transitions. [2018-12-08 13:50:22,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 242. [2018-12-08 13:50:22,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-12-08 13:50:22,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2018-12-08 13:50:22,361 INFO L728 BuchiCegarLoop]: Abstraction has 242 states and 321 transitions. [2018-12-08 13:50:22,361 INFO L608 BuchiCegarLoop]: Abstraction has 242 states and 321 transitions. [2018-12-08 13:50:22,361 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 13:50:22,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 321 transitions. [2018-12-08 13:50:22,363 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2018-12-08 13:50:22,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:50:22,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:50:22,364 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:50:22,364 INFO L867 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] [2018-12-08 13:50:22,364 INFO L794 eck$LassoCheckResult]: Stem: 1043#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string37.base, #t~string37.offset := #Ultimate.alloc(13);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1022#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 1023#L65 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; 1018#L73 main_#t~ret72 := valid_product_#res;main_~tmp~7 := main_#t~ret72;havoc main_#t~ret72; 1019#L925 assume 0 != main_~tmp~7; 1026#L901 ~switchedOnBeforeTS~0 := 0; 1087#L799 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, 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; 1044#L820-1 [2018-12-08 13:50:22,364 INFO L796 eck$LassoCheckResult]: Loop: 1044#L820-1 assume !false; 1045#L568 assume test_~splverifierCounter~0 < 4; 1063#L569 test_~tmp~3 := test_#t~nondet46;havoc test_#t~nondet46; 1218#L577 assume !(0 != test_~tmp~3); 1216#L577-1 test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 1215#L587 assume !(0 != test_~tmp___0~0); 1213#L587-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 1212#L597 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1210#L605-2 havoc __utac_acc__Specification5_spec__2_#t~ret69;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; 1209#L725 __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 1160#L809 assume !(0 != ~pumpRunning~0); 1152#L640 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1151#L672 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, 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; 1139#L543 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 1097#L548 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 1148#L774 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1145#L774-2 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 1143#L780 processEnvironment_#t~ret50 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret50;havoc processEnvironment_#t~ret50; 1137#L676 assume !(0 != processEnvironment_~tmp~4); 1027#L647 havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __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; 1028#L535 __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 1036#L820 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; 1037#L725-1 __utac_acc__Specification5_spec__3_#t~ret71 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 1038#L824 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1044#L820-1 [2018-12-08 13:50:22,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:50:22,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-12-08 13:50:22,365 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:50:22,365 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:50:22,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:50:22,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:22,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:50:22,396 INFO L82 PathProgramCache]: Analyzing trace with hash -406884310, now seen corresponding path program 1 times [2018-12-08 13:50:22,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:50:22,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:50:22,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,396 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 13:50:22,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:22,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:50:22,405 INFO L82 PathProgramCache]: Analyzing trace with hash -547477648, now seen corresponding path program 1 times [2018-12-08 13:50:22,405 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:50:22,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:50:22,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:50:22,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:50:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:50:22,536 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-12-08 13:50:27,658 WARN L180 SmtUtils]: Spent 5.07 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-12-08 13:50:30,129 WARN L180 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 425 [2018-12-08 13:50:30,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 01:50:30 BoogieIcfgContainer [2018-12-08 13:50:30,166 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 13:50:30,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 13:50:30,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 13:50:30,167 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 13:50:30,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:50:21" (3/4) ... [2018-12-08 13:50:30,170 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-08 13:50:30,206 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_85c745a5-51ea-4844-8e50-412b4693c3fd/bin-2019/uautomizer/witness.graphml [2018-12-08 13:50:30,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 13:50:30,207 INFO L168 Benchmark]: Toolchain (without parser) took 9258.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 950.6 MB in the beginning and 843.8 MB in the end (delta: 106.9 MB). Peak memory consumption was 258.4 MB. Max. memory is 11.5 GB. [2018-12-08 13:50:30,207 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:50:30,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -141.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-08 13:50:30,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 13:50:30,208 INFO L168 Benchmark]: Boogie Preprocessor took 27.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:50:30,209 INFO L168 Benchmark]: RCFGBuilder took 348.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. [2018-12-08 13:50:30,209 INFO L168 Benchmark]: BuchiAutomizer took 8488.21 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.0 GB in the beginning and 849.9 MB in the end (delta: 183.8 MB). Peak memory consumption was 254.2 MB. Max. memory is 11.5 GB. [2018-12-08 13:50:30,209 INFO L168 Benchmark]: Witness Printer took 40.21 ms. Allocated memory is still 1.2 GB. Free memory was 849.9 MB in the beginning and 843.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2018-12-08 13:50:30,211 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -141.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 348.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8488.21 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.0 GB in the beginning and 849.9 MB in the end (delta: 183.8 MB). Peak memory consumption was 254.2 MB. Max. memory is 11.5 GB. * Witness Printer took 40.21 ms. Allocated memory is still 1.2 GB. Free memory was 849.9 MB in the beginning and 843.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 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 8.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 8.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. 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, 0.1s 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: 567]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=36, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ec636da=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@208bb1f6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1173237f=56, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13f07a36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2472a684=0, NULL=0, NULL=42, NULL=0, methaneLevelCritical=0, NULL=16, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2622521c=0, tmp___0=0, tmp=0, NULL=0, NULL=14, NULL=17, NULL=0, tmp___1=0, NULL=22, NULL=26, NULL=29, NULL=23, NULL=15, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=19, NULL=8, \result=0, NULL=11, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, \result=0, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7acc384a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4edc73eb=0, NULL=40, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ae8b112=0, NULL=28, NULL=0, tmp=1, NULL=0, \result=1, NULL=43, NULL=39, NULL=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54c21aab=0, retValue_acc=0, retValue_acc=1, retValue_acc=1, tmp___2=56, tmp=1, NULL=20, splverifierCounter=0, NULL=0, NULL=38, head=0, tmp=0, NULL=0, NULL=24, NULL=0, NULL=31, NULL=0, NULL=18, NULL=0, NULL=0, NULL=0, NULL=0, NULL=12, retValue_acc=0, NULL=37} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L628] int pumpRunning = 0; [L629] int systemActive = 1; [L793] int switchedOnBeforeTS ; [L842] int cleanupTimeShifts = 4; [L916] int retValue_acc ; [L917] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) [L798] switchedOnBeforeTS = 0 [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 Loop: [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp)) [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) [L788] systemActive = 1 [L721] int retValue_acc ; [L724] retValue_acc = pumpRunning [L725] return (retValue_acc); [L807] switchedOnBeforeTS = isPumpRunning() [L640] COND FALSE !(\read(pumpRunning)) [L647] COND TRUE \read(systemActive) [L669] int tmp ; [L672] COND TRUE ! pumpRunning [L766] int retValue_acc ; [L767] int tmp ; [L768] int tmp___0 ; [L540] int retValue_acc ; [L543] COND TRUE waterLevel < 2 [L544] retValue_acc = 1 [L545] return (retValue_acc); [L772] tmp = isHighWaterSensorDry() [L774] COND TRUE \read(tmp) [L775] tmp___0 = 0 [L779] retValue_acc = tmp___0 [L780] return (retValue_acc); [L674] tmp = isHighWaterLevel() [L676] COND FALSE !(\read(tmp)) [L813] int tmp ; [L814] int tmp___0 ; [L531] int retValue_acc ; [L534] retValue_acc = waterLevel [L535] return (retValue_acc); [L818] tmp = getWaterLevel() [L820] COND TRUE tmp != 2 [L721] int retValue_acc ; [L724] retValue_acc = pumpRunning [L725] return (retValue_acc); [L822] tmp___0 = isPumpRunning() [L824] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...