./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/product-lines/minepump_spec5_product48.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 1b0d27feddcb9d1a4db7cdc5c8945d696a44cc7b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-11-28 21:14:32,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:14:32,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:14:32,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:14:32,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:14:32,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:14:32,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:14:32,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:14:32,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:14:32,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:14:32,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:14:32,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:14:32,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:14:32,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:14:32,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:14:32,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:14:32,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:14:32,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:14:32,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:14:32,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:14:32,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:14:32,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:14:32,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:14:32,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:14:32,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:14:32,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:14:32,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:14:32,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:14:32,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:14:32,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:14:32,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:14:32,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:14:32,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:14:32,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:14:32,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:14:32,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:14:32,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:14:32,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:14:32,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:14:32,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:14:32,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:14:32,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:14:32,285 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:14:32,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:14:32,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:14:32,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:14:32,287 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:14:32,288 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:14:32,288 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:14:32,288 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:14:32,289 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:14:32,289 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:14:32,290 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:14:32,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:14:32,291 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:14:32,291 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:14:32,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:14:32,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:14:32,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:14:32,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:14:32,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:14:32,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:14:32,293 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:14:32,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:14:32,294 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:14:32,294 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:14:32,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:14:32,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:14:32,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:14:32,295 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:14:32,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:14:32,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:14:32,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:14:32,298 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:14:32,299 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:14:32,300 INFO L138 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 -> 1b0d27feddcb9d1a4db7cdc5c8945d696a44cc7b [2019-11-28 21:14:32,607 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:14:32,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:14:32,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:14:32,625 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:14:32,625 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:14:32,626 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c [2019-11-28 21:14:32,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75132ba8/627ba57ba8bb49bf92331a38295e9986/FLAGefe30ca7b [2019-11-28 21:14:33,297 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:14:33,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c [2019-11-28 21:14:33,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75132ba8/627ba57ba8bb49bf92331a38295e9986/FLAGefe30ca7b [2019-11-28 21:14:33,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75132ba8/627ba57ba8bb49bf92331a38295e9986 [2019-11-28 21:14:33,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:14:33,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:14:33,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:14:33,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:14:33,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:14:33,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:14:33" (1/1) ... [2019-11-28 21:14:33,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21aba202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:33, skipping insertion in model container [2019-11-28 21:14:33,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:14:33" (1/1) ... [2019-11-28 21:14:33,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:14:33,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:14:33,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:14:34,008 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:14:34,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:14:34,170 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:14:34,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34 WrapperNode [2019-11-28 21:14:34,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:14:34,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:14:34,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:14:34,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:14:34,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (1/1) ... [2019-11-28 21:14:34,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (1/1) ... [2019-11-28 21:14:34,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:14:34,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:14:34,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:14:34,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:14:34,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (1/1) ... [2019-11-28 21:14:34,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (1/1) ... [2019-11-28 21:14:34,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (1/1) ... [2019-11-28 21:14:34,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (1/1) ... [2019-11-28 21:14:34,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (1/1) ... [2019-11-28 21:14:34,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (1/1) ... [2019-11-28 21:14:34,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (1/1) ... [2019-11-28 21:14:34,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:14:34,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:14:34,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:14:34,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:14:34,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (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 [2019-11-28 21:14:34,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:14:34,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:14:34,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:14:34,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:14:35,323 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:14:35,323 INFO L287 CfgBuilder]: Removed 212 assume(true) statements. [2019-11-28 21:14:35,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:35 BoogieIcfgContainer [2019-11-28 21:14:35,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:14:35,326 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:14:35,326 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:14:35,329 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:14:35,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:35,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:14:33" (1/3) ... [2019-11-28 21:14:35,332 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76b09c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:14:35, skipping insertion in model container [2019-11-28 21:14:35,332 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:35,333 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:34" (2/3) ... [2019-11-28 21:14:35,333 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76b09c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:14:35, skipping insertion in model container [2019-11-28 21:14:35,333 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:35,334 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:35" (3/3) ... [2019-11-28 21:14:35,335 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2019-11-28 21:14:35,384 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:14:35,385 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:14:35,385 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:14:35,385 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:14:35,386 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:14:35,386 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:14:35,386 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:14:35,386 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:14:35,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2019-11-28 21:14:35,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-11-28 21:14:35,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:35,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:35,448 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:35,448 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:35,448 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:14:35,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2019-11-28 21:14:35,456 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-11-28 21:14:35,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:35,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:35,458 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:35,458 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:35,465 INFO L794 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 89#L988true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 101#L996true main_#t~ret70 := valid_product_#res;main_~tmp~8 := main_#t~ret70;havoc main_#t~ret70; 66#L903true assume 0 != main_~tmp~8; 108#L875true ~switchedOnBeforeTS~0 := 0; 59#L923true havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, 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; 100#L944-1true [2019-11-28 21:14:35,465 INFO L796 eck$LassoCheckResult]: Loop: 100#L944-1true assume !false; 94#L432true assume test_~splverifierCounter~0 < 4; 57#L433true test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 62#L441true assume !(0 != test_~tmp~3); 63#L441-1true test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 105#L451true assume !(0 != test_~tmp___0~0); 107#L451-1true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 27#L461true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 34#L469-1true havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 111#L638true __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 96#L933true assume !(0 != ~pumpRunning~0); 52#L510true assume !(0 != ~systemActive~0); 125#L517true havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 12#L797true __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 95#L944true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 100#L944-1true [2019-11-28 21:14:35,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:35,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:14:35,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:35,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190757366] [2019-11-28 21:14:35,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:35,831 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:35,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:35,833 INFO L82 PathProgramCache]: Analyzing trace with hash 677504054, now seen corresponding path program 1 times [2019-11-28 21:14:35,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:35,834 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422984444] [2019-11-28 21:14:35,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:14:35,891 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422984444] [2019-11-28 21:14:35,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:35,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:14:35,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602103544] [2019-11-28 21:14:35,899 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:14:35,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:35,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:14:35,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:14:35,919 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 3 states. [2019-11-28 21:14:36,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:36,016 INFO L93 Difference]: Finished difference Result 267 states and 383 transitions. [2019-11-28 21:14:36,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:14:36,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 383 transitions. [2019-11-28 21:14:36,028 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 174 [2019-11-28 21:14:36,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 253 states and 368 transitions. [2019-11-28 21:14:36,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 253 [2019-11-28 21:14:36,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 253 [2019-11-28 21:14:36,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 253 states and 368 transitions. [2019-11-28 21:14:36,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:36,042 INFO L688 BuchiCegarLoop]: Abstraction has 253 states and 368 transitions. [2019-11-28 21:14:36,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states and 368 transitions. [2019-11-28 21:14:36,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 251. [2019-11-28 21:14:36,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-11-28 21:14:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 365 transitions. [2019-11-28 21:14:36,089 INFO L711 BuchiCegarLoop]: Abstraction has 251 states and 365 transitions. [2019-11-28 21:14:36,089 INFO L591 BuchiCegarLoop]: Abstraction has 251 states and 365 transitions. [2019-11-28 21:14:36,089 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:14:36,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 251 states and 365 transitions. [2019-11-28 21:14:36,094 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 172 [2019-11-28 21:14:36,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:36,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:36,095 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:36,096 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:36,096 INFO L794 eck$LassoCheckResult]: Stem: 530#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 422#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 423#L988 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 531#L996 main_#t~ret70 := valid_product_#res;main_~tmp~8 := main_#t~ret70;havoc main_#t~ret70; 519#L903 assume 0 != main_~tmp~8; 520#L875 ~switchedOnBeforeTS~0 := 0; 512#L923 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, 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; 472#L944-1 [2019-11-28 21:14:36,096 INFO L796 eck$LassoCheckResult]: Loop: 472#L944-1 assume !false; 533#L432 assume test_~splverifierCounter~0 < 4; 509#L433 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 510#L441 assume !(0 != test_~tmp~3); 515#L441-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 516#L451 assume !(0 != test_~tmp___0~0); 518#L451-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 457#L461 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 459#L469-1 havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 470#L638 __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 536#L933 assume !(0 != ~pumpRunning~0); 455#L510 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 505#L568 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret39, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 580#L542-1 assume !(0 == ~pumpRunning~0); 548#L517 havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 430#L797 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 431#L944 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 472#L944-1 [2019-11-28 21:14:36,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:36,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:14:36,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:36,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222766666] [2019-11-28 21:14:36,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:36,299 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:36,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:36,300 INFO L82 PathProgramCache]: Analyzing trace with hash -538952360, now seen corresponding path program 1 times [2019-11-28 21:14:36,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:36,301 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731503184] [2019-11-28 21:14:36,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:36,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:14:36,327 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731503184] [2019-11-28 21:14:36,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:36,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:14:36,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888467763] [2019-11-28 21:14:36,331 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:14:36,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:36,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:14:36,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:14:36,332 INFO L87 Difference]: Start difference. First operand 251 states and 365 transitions. cyclomatic complexity: 117 Second operand 3 states. [2019-11-28 21:14:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:36,581 INFO L93 Difference]: Finished difference Result 350 states and 487 transitions. [2019-11-28 21:14:36,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:14:36,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 350 states and 487 transitions. [2019-11-28 21:14:36,586 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 247 [2019-11-28 21:14:36,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 350 states to 350 states and 487 transitions. [2019-11-28 21:14:36,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 350 [2019-11-28 21:14:36,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 350 [2019-11-28 21:14:36,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 350 states and 487 transitions. [2019-11-28 21:14:36,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:36,597 INFO L688 BuchiCegarLoop]: Abstraction has 350 states and 487 transitions. [2019-11-28 21:14:36,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states and 487 transitions. [2019-11-28 21:14:36,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-11-28 21:14:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-11-28 21:14:36,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 487 transitions. [2019-11-28 21:14:36,634 INFO L711 BuchiCegarLoop]: Abstraction has 350 states and 487 transitions. [2019-11-28 21:14:36,634 INFO L591 BuchiCegarLoop]: Abstraction has 350 states and 487 transitions. [2019-11-28 21:14:36,634 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:14:36,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 350 states and 487 transitions. [2019-11-28 21:14:36,637 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 247 [2019-11-28 21:14:36,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:36,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:36,639 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:36,639 INFO L850 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] [2019-11-28 21:14:36,639 INFO L794 eck$LassoCheckResult]: Stem: 1144#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 1029#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 1030#L988 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1146#L996 main_#t~ret70 := valid_product_#res;main_~tmp~8 := main_#t~ret70;havoc main_#t~ret70; 1134#L903 assume 0 != main_~tmp~8; 1135#L875 ~switchedOnBeforeTS~0 := 0; 1125#L923 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, 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; 1126#L944-1 [2019-11-28 21:14:36,640 INFO L796 eck$LassoCheckResult]: Loop: 1126#L944-1 assume !false; 1337#L432 assume test_~splverifierCounter~0 < 4; 1122#L433 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 1123#L441 assume !(0 != test_~tmp~3); 1332#L441-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 1331#L451 assume !(0 != test_~tmp___0~0); 1328#L451-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 1327#L461 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1066#L469-1 havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1323#L638 __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 1322#L933 assume !(0 != ~pumpRunning~0); 1197#L510 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1321#L568 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret39, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1191#L542-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1320#L805-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1319#L810-1 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 1026#L687-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1027#L687-5 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1028#L693-1 processEnvironment__wrappee__methaneQuery_#t~ret39 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret39;havoc processEnvironment__wrappee__methaneQuery_#t~ret39; 1162#L546-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 1275#L517 havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1342#L797 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1340#L944 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 1126#L944-1 [2019-11-28 21:14:36,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:36,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:14:36,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:36,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934065727] [2019-11-28 21:14:36,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:36,755 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:36,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:36,756 INFO L82 PathProgramCache]: Analyzing trace with hash 2055068228, now seen corresponding path program 1 times [2019-11-28 21:14:36,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:36,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530189059] [2019-11-28 21:14:36,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:14:36,812 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530189059] [2019-11-28 21:14:36,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:36,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 21:14:36,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66797434] [2019-11-28 21:14:36,813 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:14:36,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:36,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:14:36,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:14:36,814 INFO L87 Difference]: Start difference. First operand 350 states and 487 transitions. cyclomatic complexity: 140 Second operand 5 states. [2019-11-28 21:14:37,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:37,170 INFO L93 Difference]: Finished difference Result 1535 states and 2147 transitions. [2019-11-28 21:14:37,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:14:37,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1535 states and 2147 transitions. [2019-11-28 21:14:37,195 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1070 [2019-11-28 21:14:37,214 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1535 states to 1535 states and 2147 transitions. [2019-11-28 21:14:37,215 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1535 [2019-11-28 21:14:37,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1535 [2019-11-28 21:14:37,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1535 states and 2147 transitions. [2019-11-28 21:14:37,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:37,231 INFO L688 BuchiCegarLoop]: Abstraction has 1535 states and 2147 transitions. [2019-11-28 21:14:37,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states and 2147 transitions. [2019-11-28 21:14:37,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 687. [2019-11-28 21:14:37,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 687 states. [2019-11-28 21:14:37,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 943 transitions. [2019-11-28 21:14:37,283 INFO L711 BuchiCegarLoop]: Abstraction has 687 states and 943 transitions. [2019-11-28 21:14:37,283 INFO L591 BuchiCegarLoop]: Abstraction has 687 states and 943 transitions. [2019-11-28 21:14:37,283 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:14:37,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 687 states and 943 transitions. [2019-11-28 21:14:37,288 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 490 [2019-11-28 21:14:37,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:37,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:37,294 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:37,294 INFO L850 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, 1] [2019-11-28 21:14:37,294 INFO L794 eck$LassoCheckResult]: Stem: 3051#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 2937#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 2938#L988 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 3054#L996 main_#t~ret70 := valid_product_#res;main_~tmp~8 := main_#t~ret70;havoc main_#t~ret70; 3039#L903 assume 0 != main_~tmp~8; 3040#L875 ~switchedOnBeforeTS~0 := 0; 3030#L923 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, 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; 3031#L944-1 [2019-11-28 21:14:37,295 INFO L796 eck$LassoCheckResult]: Loop: 3031#L944-1 assume !false; 3294#L432 assume test_~splverifierCounter~0 < 4; 3293#L433 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 3292#L441 assume !(0 != test_~tmp~3); 3290#L441-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 3289#L451 assume !(0 != test_~tmp___0~0); 3287#L451-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 3286#L461 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3256#L469-1 havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 3068#L638 __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 3059#L933 assume !(0 != ~pumpRunning~0); 3060#L510 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 3003#L568 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret39, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 3004#L542-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2959#L805-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2960#L810-1 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 2930#L687-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 2931#L687-5 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 2932#L693-1 processEnvironment__wrappee__methaneQuery_#t~ret39 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret39;havoc processEnvironment__wrappee__methaneQuery_#t~ret39; 3009#L546-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 2997#L517 havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 3300#L797 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 3299#L944 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 3298#L638-1 __utac_acc__Specification5_spec__3_#t~ret73 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 3297#L948 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 3031#L944-1 [2019-11-28 21:14:37,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:37,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 21:14:37,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:37,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164396787] [2019-11-28 21:14:37,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:37,432 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:37,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:37,433 INFO L82 PathProgramCache]: Analyzing trace with hash -764400417, now seen corresponding path program 1 times [2019-11-28 21:14:37,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:37,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806494831] [2019-11-28 21:14:37,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:37,474 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:37,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:37,475 INFO L82 PathProgramCache]: Analyzing trace with hash -827826599, now seen corresponding path program 1 times [2019-11-28 21:14:37,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:37,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329120028] [2019-11-28 21:14:37,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:37,556 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:37,740 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-28 21:15:07,721 WARN L192 SmtUtils]: Spent 29.88 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:15:22,164 WARN L192 SmtUtils]: Spent 14.44 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:15:22,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:15:22 BoogieIcfgContainer [2019-11-28 21:15:22,238 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:15:22,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:15:22,238 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:15:22,239 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:15:22,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:35" (3/4) ... [2019-11-28 21:15:22,242 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:15:22,305 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:15:22,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:15:22,307 INFO L168 Benchmark]: Toolchain (without parser) took 48762.39 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 316.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -191.3 MB). Peak memory consumption was 125.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:22,307 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:15:22,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:22,309 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:22,309 INFO L168 Benchmark]: Boogie Preprocessor took 88.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:15:22,310 INFO L168 Benchmark]: RCFGBuilder took 973.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:22,311 INFO L168 Benchmark]: BuchiAutomizer took 46911.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 166.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -96.1 MB). Peak memory consumption was 372.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:22,311 INFO L168 Benchmark]: Witness Printer took 67.21 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:22,314 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 626.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 973.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46911.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 166.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -96.1 MB). Peak memory consumption was 372.3 MB. Max. memory is 11.5 GB. * Witness Printer took 67.21 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 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 687 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 45.7s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 850 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 687 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 666 SDtfs, 1255 SDslu, 1126 SDs, 0 SdLazy, 177 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 431]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4450} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=4450, NULL=4483, NULL=0, NULL=0, NULL=4482, retValue_acc=0, NULL=4464, methaneLevelCritical=0, tmp=1, tmp___0=0, retValue_acc=1, retValue_acc=0, tmp=0, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=4466, NULL=4454, NULL=4452, NULL=4465, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=4463, NULL=4460, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@178dbb8e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b46f679=63, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69132474=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5098ee73=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1748a17a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@559e30e2=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=4472, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b2a32c5=0, NULL=4467, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@166a9947=0, \result=0, NULL=4471, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=4455, head=0, pumpRunning=0, tmp___0=0, retValue_acc=1, \result=0, NULL=4456, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57a9e1c8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@886732b=0, NULL=4453, NULL=0, tmp=1, NULL=0, \result=1, NULL=4459, NULL=4470, NULL=4469, NULL=4451, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54e21fd7=0, tmp=1, retValue_acc=1, tmp___2=63, NULL=4458, splverifierCounter=0, head=0, NULL=0, tmp=0, NULL=4457, NULL=4468, NULL=0, NULL=4461, NULL=0, NULL=0, NULL=4462, NULL=0, NULL=4484, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L498] int pumpRunning = 0; [L499] int systemActive = 1; [L722] int waterLevel = 1; [L723] int methaneLevelCritical = 0; [L816] int cleanupTimeShifts = 4; [L917] int switchedOnBeforeTS ; [L894] int retValue_acc ; [L895] int tmp ; [L992] int retValue_acc ; [L995] retValue_acc = 1 [L996] return (retValue_acc); [L901] tmp = valid_product() [L903] COND TRUE \read(tmp) [L922] switchedOnBeforeTS = 0 [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 Loop: [L431] COND TRUE 1 [L433] COND TRUE splverifierCounter < 4 [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L716] systemActive = 1 [L634] int retValue_acc ; [L637] retValue_acc = pumpRunning [L638] return (retValue_acc); [L931] switchedOnBeforeTS = isPumpRunning() [L510] COND FALSE !(\read(pumpRunning)) [L517] COND TRUE \read(systemActive) [L565] int tmp ; [L568] COND FALSE !(\read(pumpRunning)) [L539] int tmp ; [L542] COND TRUE ! pumpRunning [L679] int retValue_acc ; [L680] int tmp ; [L681] int tmp___0 ; [L802] int retValue_acc ; [L805] COND TRUE waterLevel < 2 [L806] retValue_acc = 1 [L807] return (retValue_acc); [L685] tmp = isHighWaterSensorDry() [L687] COND TRUE \read(tmp) [L688] tmp___0 = 0 [L692] retValue_acc = tmp___0 [L693] return (retValue_acc); [L544] tmp = isHighWaterLevel() [L546] COND FALSE !(\read(tmp)) [L937] int tmp ; [L938] int tmp___0 ; [L793] int retValue_acc ; [L796] retValue_acc = waterLevel [L797] return (retValue_acc); [L942] tmp = getWaterLevel() [L944] COND TRUE tmp != 2 [L634] int retValue_acc ; [L637] retValue_acc = pumpRunning [L638] return (retValue_acc); [L946] tmp___0 = isPumpRunning() [L948] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...