./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product60_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec3_product60_false-unreach-call_false-termination.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 fddb6b0f0f2a5c528e066b10e7f7ba2c13018b92 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-2e94e6a [2019-01-01 23:44:39,131 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 23:44:39,132 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 23:44:39,149 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 23:44:39,150 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 23:44:39,151 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 23:44:39,153 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 23:44:39,156 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 23:44:39,158 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 23:44:39,159 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 23:44:39,167 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 23:44:39,167 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 23:44:39,169 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 23:44:39,170 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 23:44:39,171 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 23:44:39,175 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 23:44:39,176 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 23:44:39,179 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 23:44:39,181 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 23:44:39,187 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 23:44:39,188 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 23:44:39,191 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 23:44:39,194 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 23:44:39,196 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 23:44:39,196 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 23:44:39,197 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 23:44:39,199 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 23:44:39,201 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 23:44:39,203 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 23:44:39,206 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 23:44:39,206 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 23:44:39,207 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 23:44:39,207 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 23:44:39,207 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 23:44:39,209 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 23:44:39,211 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 23:44:39,213 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-01 23:44:39,247 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 23:44:39,247 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 23:44:39,249 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 23:44:39,250 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 23:44:39,250 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 23:44:39,250 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 23:44:39,250 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 23:44:39,251 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 23:44:39,251 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 23:44:39,251 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 23:44:39,251 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 23:44:39,251 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 23:44:39,251 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 23:44:39,252 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 23:44:39,252 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 23:44:39,252 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 23:44:39,252 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 23:44:39,252 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 23:44:39,252 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 23:44:39,255 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 23:44:39,255 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 23:44:39,255 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 23:44:39,255 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 23:44:39,256 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 23:44:39,256 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 23:44:39,256 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 23:44:39,256 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 23:44:39,256 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 23:44:39,257 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 23:44:39,257 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 23:44:39,257 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 23:44:39,260 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 23:44:39,260 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> fddb6b0f0f2a5c528e066b10e7f7ba2c13018b92 [2019-01-01 23:44:39,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 23:44:39,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 23:44:39,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 23:44:39,349 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 23:44:39,350 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 23:44:39,351 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product60_false-unreach-call_false-termination.cil.c [2019-01-01 23:44:39,420 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef88eac2b/e01b412d0eb9496da61fb074c10e10b9/FLAGb17d668aa [2019-01-01 23:44:39,914 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 23:44:39,915 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product60_false-unreach-call_false-termination.cil.c [2019-01-01 23:44:39,934 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef88eac2b/e01b412d0eb9496da61fb074c10e10b9/FLAGb17d668aa [2019-01-01 23:44:40,196 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef88eac2b/e01b412d0eb9496da61fb074c10e10b9 [2019-01-01 23:44:40,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 23:44:40,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 23:44:40,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 23:44:40,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 23:44:40,206 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 23:44:40,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:44:40" (1/1) ... [2019-01-01 23:44:40,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1941ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:40, skipping insertion in model container [2019-01-01 23:44:40,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:44:40" (1/1) ... [2019-01-01 23:44:40,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 23:44:40,286 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 23:44:40,746 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:44:40,773 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 23:44:40,994 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:44:41,042 INFO L195 MainTranslator]: Completed translation [2019-01-01 23:44:41,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41 WrapperNode [2019-01-01 23:44:41,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 23:44:41,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 23:44:41,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 23:44:41,044 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 23:44:41,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (1/1) ... [2019-01-01 23:44:41,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (1/1) ... [2019-01-01 23:44:41,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 23:44:41,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 23:44:41,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 23:44:41,141 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 23:44:41,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (1/1) ... [2019-01-01 23:44:41,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (1/1) ... [2019-01-01 23:44:41,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (1/1) ... [2019-01-01 23:44:41,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (1/1) ... [2019-01-01 23:44:41,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (1/1) ... [2019-01-01 23:44:41,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (1/1) ... [2019-01-01 23:44:41,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (1/1) ... [2019-01-01 23:44:41,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 23:44:41,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 23:44:41,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 23:44:41,208 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 23:44:41,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory: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 [2019-01-01 23:44:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 23:44:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-01 23:44:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 23:44:41,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 23:44:42,722 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 23:44:42,722 INFO L280 CfgBuilder]: Removed 204 assue(true) statements. [2019-01-01 23:44:42,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:44:42 BoogieIcfgContainer [2019-01-01 23:44:42,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 23:44:42,724 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 23:44:42,724 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 23:44:42,728 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 23:44:42,729 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:44:42,729 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 11:44:40" (1/3) ... [2019-01-01 23:44:42,730 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7160bcb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:44:42, skipping insertion in model container [2019-01-01 23:44:42,730 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:44:42,730 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:44:41" (2/3) ... [2019-01-01 23:44:42,731 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7160bcb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:44:42, skipping insertion in model container [2019-01-01 23:44:42,731 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:44:42,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:44:42" (3/3) ... [2019-01-01 23:44:42,733 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product60_false-unreach-call_false-termination.cil.c [2019-01-01 23:44:42,793 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 23:44:42,794 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 23:44:42,794 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 23:44:42,794 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 23:44:42,794 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 23:44:42,795 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 23:44:42,795 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 23:44:42,795 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 23:44:42,795 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 23:44:42,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 140 states. [2019-01-01 23:44:42,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2019-01-01 23:44:42,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:44:42,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:44:42,865 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-01 23:44:42,866 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:44:42,866 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 23:44:42,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 140 states. [2019-01-01 23:44:42,877 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2019-01-01 23:44:42,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:44:42,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:44:42,878 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-01 23:44:42,879 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:44:42,884 INFO L794 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #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(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4; 21#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 62#L799true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 67#L807true main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 70#L997true assume 0 != main_~tmp~10; 108#L974true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 87#L380-1true [2019-01-01 23:44:42,885 INFO L796 eck$LassoCheckResult]: Loop: 87#L380-1true assume !false; 140#L57true assume test_~splverifierCounter~0 < 4; 73#L58true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 104#L66true assume !(0 != test_~tmp~0); 100#L66-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 29#L76true assume !(0 != test_~tmp___0~0); 27#L76-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 64#L86true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 59#L94-1true assume !(0 != ~pumpRunning~0); 106#L132true assume !(0 != ~systemActive~0); 46#L139true havoc __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_#t~ret28, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 19#L855-2true __utac_acc__Specification3_spec__1_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret26;havoc __utac_acc__Specification3_spec__1_#t~ret26; 114#L374true assume 0 != __utac_acc__Specification3_spec__1_~tmp~6; 87#L380-1true [2019-01-01 23:44:42,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:44:42,897 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-01-01 23:44:42,900 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:44:42,901 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:44:42,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:42,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:44:42,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:43,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:44:43,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1669554881, now seen corresponding path program 1 times [2019-01-01 23:44:43,798 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:44:43,799 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:44:43,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:43,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:44:43,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:44:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:44:43,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:44:43,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 23:44:43,916 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-01 23:44:43,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 23:44:43,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 23:44:43,940 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 3 states. [2019-01-01 23:44:44,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:44:44,172 INFO L93 Difference]: Finished difference Result 274 states and 396 transitions. [2019-01-01 23:44:44,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 23:44:44,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 274 states and 396 transitions. [2019-01-01 23:44:44,198 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 178 [2019-01-01 23:44:44,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 274 states to 260 states and 381 transitions. [2019-01-01 23:44:44,214 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 260 [2019-01-01 23:44:44,215 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 260 [2019-01-01 23:44:44,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 260 states and 381 transitions. [2019-01-01 23:44:44,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:44:44,219 INFO L705 BuchiCegarLoop]: Abstraction has 260 states and 381 transitions. [2019-01-01 23:44:44,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states and 381 transitions. [2019-01-01 23:44:44,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2019-01-01 23:44:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-01-01 23:44:44,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 378 transitions. [2019-01-01 23:44:44,269 INFO L728 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2019-01-01 23:44:44,269 INFO L608 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2019-01-01 23:44:44,269 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 23:44:44,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 378 transitions. [2019-01-01 23:44:44,274 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2019-01-01 23:44:44,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:44:44,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:44:44,275 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-01 23:44:44,275 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 23:44:44,276 INFO L794 eck$LassoCheckResult]: Stem: 561#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #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(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4; 453#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 454#L799 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 512#L807 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 518#L997 assume 0 != main_~tmp~10; 522#L974 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 546#L380-1 [2019-01-01 23:44:44,276 INFO L796 eck$LassoCheckResult]: Loop: 546#L380-1 assume !false; 547#L57 assume test_~splverifierCounter~0 < 4; 600#L58 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 567#L66 assume !(0 != test_~tmp~0); 459#L66-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 468#L76 assume !(0 != test_~tmp___0~0); 464#L76-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 465#L86 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 509#L94-1 assume !(0 != ~pumpRunning~0); 569#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 570#L190 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 615#L164-1 assume !(0 == ~pumpRunning~0); 493#L139 havoc __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_#t~ret28, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 450#L855-2 __utac_acc__Specification3_spec__1_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret26;havoc __utac_acc__Specification3_spec__1_#t~ret26; 451#L374 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6; 546#L380-1 [2019-01-01 23:44:44,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:44:44,277 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-01-01 23:44:44,277 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:44:44,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:44:44,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:44,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:44:44,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:44,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:44:44,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1405144280, now seen corresponding path program 1 times [2019-01-01 23:44:44,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:44:44,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:44:44,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:44,611 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 23:44:44,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:44:44,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:44:44,672 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:44:44,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 23:44:44,673 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-01 23:44:44,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 23:44:44,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 23:44:44,674 INFO L87 Difference]: Start difference. First operand 258 states and 378 transitions. cyclomatic complexity: 123 Second operand 3 states. [2019-01-01 23:44:45,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:44:45,112 INFO L93 Difference]: Finished difference Result 353 states and 496 transitions. [2019-01-01 23:44:45,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 23:44:45,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 353 states and 496 transitions. [2019-01-01 23:44:45,119 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 247 [2019-01-01 23:44:45,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 353 states to 353 states and 496 transitions. [2019-01-01 23:44:45,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 353 [2019-01-01 23:44:45,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 353 [2019-01-01 23:44:45,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 353 states and 496 transitions. [2019-01-01 23:44:45,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:44:45,128 INFO L705 BuchiCegarLoop]: Abstraction has 353 states and 496 transitions. [2019-01-01 23:44:45,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states and 496 transitions. [2019-01-01 23:44:45,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2019-01-01 23:44:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2019-01-01 23:44:45,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 496 transitions. [2019-01-01 23:44:45,146 INFO L728 BuchiCegarLoop]: Abstraction has 353 states and 496 transitions. [2019-01-01 23:44:45,146 INFO L608 BuchiCegarLoop]: Abstraction has 353 states and 496 transitions. [2019-01-01 23:44:45,146 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 23:44:45,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 353 states and 496 transitions. [2019-01-01 23:44:45,149 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 247 [2019-01-01 23:44:45,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:44:45,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:44:45,150 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-01 23:44:45,151 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] [2019-01-01 23:44:45,151 INFO L794 eck$LassoCheckResult]: Stem: 1177#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #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(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4; 1073#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1074#L799 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1131#L807 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 1139#L997 assume 0 != main_~tmp~10; 1143#L974 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1105#L380-1 [2019-01-01 23:44:45,151 INFO L796 eck$LassoCheckResult]: Loop: 1105#L380-1 assume !false; 1164#L57 assume test_~splverifierCounter~0 < 4; 1204#L58 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1233#L66 assume !(0 != test_~tmp~0); 1232#L66-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1226#L76 assume !(0 != test_~tmp___0~0); 1225#L76-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 1213#L86 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1214#L94-1 assume !(0 != ~pumpRunning~0); 1182#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1183#L190 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1267#L164-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1266#L895-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1264#L900-1 isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; 1262#L310-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1261#L310-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1260#L316-1 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 1252#L168-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1112#L139 havoc __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_#t~ret28, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1113#L855-2 __utac_acc__Specification3_spec__1_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret26;havoc __utac_acc__Specification3_spec__1_#t~ret26; 1190#L374 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6; 1105#L380-1 [2019-01-01 23:44:45,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:44:45,152 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-01-01 23:44:45,152 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:44:45,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:44:45,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:45,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:44:45,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:45,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:44:45,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1224409652, now seen corresponding path program 1 times [2019-01-01 23:44:45,521 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:44:45,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:44:45,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:45,522 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 23:44:45,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:45,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:44:45,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1680480846, now seen corresponding path program 1 times [2019-01-01 23:44:45,535 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:44:45,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:44:45,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:45,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:44:45,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:44:45,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:44:45,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:44:45,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 23:44:46,624 WARN L181 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-01-01 23:44:46,748 WARN L181 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-01-01 23:44:46,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 23:44:46,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-01 23:44:46,758 INFO L87 Difference]: Start difference. First operand 353 states and 496 transitions. cyclomatic complexity: 146 Second operand 5 states. [2019-01-01 23:44:47,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:44:47,737 INFO L93 Difference]: Finished difference Result 1229 states and 1735 transitions. [2019-01-01 23:44:47,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 23:44:47,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1229 states and 1735 transitions. [2019-01-01 23:44:47,755 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 922 [2019-01-01 23:44:47,768 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1229 states to 1229 states and 1735 transitions. [2019-01-01 23:44:47,768 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1229 [2019-01-01 23:44:47,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1229 [2019-01-01 23:44:47,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1229 states and 1735 transitions. [2019-01-01 23:44:47,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:44:47,777 INFO L705 BuchiCegarLoop]: Abstraction has 1229 states and 1735 transitions. [2019-01-01 23:44:47,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states and 1735 transitions. [2019-01-01 23:44:47,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 700. [2019-01-01 23:44:47,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-01-01 23:44:47,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 970 transitions. [2019-01-01 23:44:47,812 INFO L728 BuchiCegarLoop]: Abstraction has 700 states and 970 transitions. [2019-01-01 23:44:47,812 INFO L608 BuchiCegarLoop]: Abstraction has 700 states and 970 transitions. [2019-01-01 23:44:47,812 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2019-01-01 23:44:47,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 700 states and 970 transitions. [2019-01-01 23:44:47,817 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 494 [2019-01-01 23:44:47,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:44:47,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:44:47,818 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-01 23:44:47,818 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] [2019-01-01 23:44:47,818 INFO L794 eck$LassoCheckResult]: Stem: 2777#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #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(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4; 2676#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 2677#L799 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 2734#L807 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 2740#L997 assume 0 != main_~tmp~10; 2744#L974 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2785#L380-1 [2019-01-01 23:44:47,819 INFO L796 eck$LassoCheckResult]: Loop: 2785#L380-1 assume !false; 3152#L57 assume test_~splverifierCounter~0 < 4; 2748#L58 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 2749#L66 assume !(0 != test_~tmp~0); 2682#L66-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 2690#L76 assume !(0 != test_~tmp___0~0); 2691#L76-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 3339#L86 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2728#L94-1 assume !(0 != ~pumpRunning~0); 2729#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 3331#L190 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 3329#L164-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 3327#L895-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 3325#L900-1 isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; 3323#L310-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 2802#L310-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2803#L316-1 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 3307#L168-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 3165#L139 havoc __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_#t~ret28, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 3164#L855-2 __utac_acc__Specification3_spec__1_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret26;havoc __utac_acc__Specification3_spec__1_#t~ret26; 3163#L374 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 3162#L887 __utac_acc__Specification3_spec__1_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret27;havoc __utac_acc__Specification3_spec__1_#t~ret27; 3160#L380 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 2785#L380-1 [2019-01-01 23:44:47,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:44:47,819 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-01-01 23:44:47,819 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:44:47,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:44:47,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:47,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:44:47,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:48,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:44:48,077 INFO L82 PathProgramCache]: Analyzing trace with hash -163354618, now seen corresponding path program 1 times [2019-01-01 23:44:48,077 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:44:48,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:44:48,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:48,078 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 23:44:48,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:48,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:44:48,097 INFO L82 PathProgramCache]: Analyzing trace with hash 34398624, now seen corresponding path program 1 times [2019-01-01 23:44:48,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:44:48,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:44:48,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:48,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:44:48,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:44:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:44:49,622 WARN L181 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-01-01 23:44:50,110 WARN L181 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-01-01 23:45:14,769 WARN L181 SmtUtils]: Spent 24.65 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-01-01 23:45:30,979 WARN L181 SmtUtils]: Spent 16.21 s on a formula simplification that was a NOOP. DAG size: 449 [2019-01-01 23:45:31,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 11:45:31 BoogieIcfgContainer [2019-01-01 23:45:31,067 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 23:45:31,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 23:45:31,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 23:45:31,067 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 23:45:31,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:44:42" (3/4) ... [2019-01-01 23:45:31,072 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-01 23:45:31,193 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 23:45:31,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 23:45:31,194 INFO L168 Benchmark]: Toolchain (without parser) took 50994.12 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 327.2 MB). Free memory was 951.3 MB in the beginning and 1.3 GB in the end (delta: -326.2 MB). Peak memory consumption was 913.7 kB. Max. memory is 11.5 GB. [2019-01-01 23:45:31,196 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:45:31,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 840.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2019-01-01 23:45:31,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.18 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-01-01 23:45:31,201 INFO L168 Benchmark]: Boogie Preprocessor took 65.75 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. [2019-01-01 23:45:31,201 INFO L168 Benchmark]: RCFGBuilder took 1516.56 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: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. [2019-01-01 23:45:31,202 INFO L168 Benchmark]: BuchiAutomizer took 48342.55 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 216.5 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -259.0 MB). Peak memory consumption was 411.4 MB. Max. memory is 11.5 GB. [2019-01-01 23:45:31,202 INFO L168 Benchmark]: Witness Printer took 126.39 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2019-01-01 23:45:31,210 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 840.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.18 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.75 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 1516.56 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: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 48342.55 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 216.5 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -259.0 MB). Peak memory consumption was 411.4 MB. Max. memory is 11.5 GB. * Witness Printer took 126.39 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 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 700 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 48.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 46.2s. Construction of modules took 1.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 531 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 700 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 666 SDtfs, 1120 SDslu, 1161 SDs, 0 SdLazy, 147 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 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: 56]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5622} State at position 1 is {NULL=-13, NULL=0, NULL=0, retValue_acc=1, NULL=5622, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e299da1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@215302d8=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@172cdfc0=60, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4828a9fe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b9b6d4a=0, NULL=-15, NULL=-19, NULL=-17, methaneLevelCritical=0, tmp___0=0, NULL=0, retValue_acc=0, NULL=0, NULL=-23, tmp___1=0, NULL=-6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d234838=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44d34460=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b0262c3=0, cleanupTimeShifts=4, tmp=0, tmp=0, NULL=-11, tmp=1, tmp___0=1, NULL=-5, tmp=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e70266f=0, NULL=-21, retValue_acc=0, NULL=0, \result=0, NULL=-8, tmp___0=0, NULL=0, NULL=0, NULL=3091, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=0, head=0, pumpRunning=0, NULL=-9, NULL=-20, \result=0, NULL=-3, NULL=-4, NULL=-18, NULL=0, NULL=-22, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=-7, NULL=-14, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d7c6a93=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@85eb514=0, tmp___2=60, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=5621, NULL=-10, NULL=-16, tmp=0, tmp___1=0, head=0, NULL=-1, NULL=0, NULL=0, NULL=-2, NULL=0, NULL=-12} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L812] int waterLevel = 1; [L813] int methaneLevelCritical = 0; [L915] int cleanupTimeShifts = 4; [L988] int retValue_acc ; [L989] int tmp ; [L803] int retValue_acc ; [L806] retValue_acc = 1 [L807] return (retValue_acc); [L995] tmp = valid_product() [L997] COND TRUE \read(tmp) [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 Loop: [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L358] systemActive = 1 [L132] COND FALSE !(\read(pumpRunning)) [L139] COND TRUE \read(systemActive) [L187] int tmp ; [L190] COND FALSE !(\read(pumpRunning)) [L161] int tmp ; [L164] COND TRUE ! pumpRunning [L302] int retValue_acc ; [L303] int tmp ; [L304] int tmp___0 ; [L892] int retValue_acc ; [L895] COND TRUE waterLevel < 2 [L896] retValue_acc = 1 [L897] return (retValue_acc); [L308] tmp = isHighWaterSensorDry() [L310] COND TRUE \read(tmp) [L311] tmp___0 = 0 [L315] retValue_acc = tmp___0 [L316] return (retValue_acc); [L166] tmp = isHighWaterLevel() [L168] COND FALSE !(\read(tmp)) [L366] int tmp ; [L367] int tmp___0 ; [L368] int tmp___1 ; [L851] int retValue_acc ; [L854] retValue_acc = methaneLevelCritical [L855] return (retValue_acc); [L372] tmp = isMethaneLevelCritical() [L374] COND FALSE !(\read(tmp)) [L883] int retValue_acc ; [L886] retValue_acc = waterLevel [L887] return (retValue_acc); [L378] tmp___0 = getWaterLevel() [L380] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...