./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product53.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_product53.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 4f6c889e7a16ef76fe9fccec0743002e303bbe32 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:14:46,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:14:46,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:14:46,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:14:46,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:14:46,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:14:46,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:14:46,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:14:46,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:14:46,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:14:46,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:14:46,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:14:46,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:14:46,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:14:46,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:14:46,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:14:46,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:14:46,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:14:46,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:14:46,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:14:46,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:14:46,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:14:46,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:14:46,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:14:46,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:14:46,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:14:46,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:14:46,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:14:46,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:14:46,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:14:46,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:14:46,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:14:46,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:14:46,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:14:46,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:14:46,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:14:46,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:14:46,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:14:46,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:14:46,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:14:46,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:14:46,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:14:46,221 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:14:46,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:14:46,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:14:46,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:14:46,226 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:14:46,226 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:14:46,226 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:14:46,227 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:14:46,227 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:14:46,227 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:14:46,228 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:14:46,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:14:46,229 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:14:46,229 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:14:46,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:14:46,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:14:46,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:14:46,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:14:46,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:14:46,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:14:46,231 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:14:46,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:14:46,232 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:14:46,232 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:14:46,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:14:46,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:14:46,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:14:46,233 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:14:46,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:14:46,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:14:46,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:14:46,235 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:14:46,237 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:14:46,237 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 -> 4f6c889e7a16ef76fe9fccec0743002e303bbe32 [2019-11-28 21:14:46,590 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:14:46,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:14:46,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:14:46,613 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:14:46,613 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:14:46,614 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2019-11-28 21:14:46,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e513901b/e2b566589af44f49bde994a4cfaba91b/FLAGb1d2747f1 [2019-11-28 21:14:47,205 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:14:47,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2019-11-28 21:14:47,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e513901b/e2b566589af44f49bde994a4cfaba91b/FLAGb1d2747f1 [2019-11-28 21:14:47,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e513901b/e2b566589af44f49bde994a4cfaba91b [2019-11-28 21:14:47,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:14:47,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:14:47,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:14:47,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:14:47,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:14:47,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:14:47" (1/1) ... [2019-11-28 21:14:47,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:47, skipping insertion in model container [2019-11-28 21:14:47,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:14:47" (1/1) ... [2019-11-28 21:14:47,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:14:47,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:14:48,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:14:48,164 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:14:48,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:14:48,311 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:14:48,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48 WrapperNode [2019-11-28 21:14:48,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:14:48,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:14:48,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:14:48,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:14:48,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (1/1) ... [2019-11-28 21:14:48,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (1/1) ... [2019-11-28 21:14:48,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:14:48,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:14:48,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:14:48,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:14:48,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (1/1) ... [2019-11-28 21:14:48,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (1/1) ... [2019-11-28 21:14:48,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (1/1) ... [2019-11-28 21:14:48,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (1/1) ... [2019-11-28 21:14:48,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (1/1) ... [2019-11-28 21:14:48,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (1/1) ... [2019-11-28 21:14:48,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (1/1) ... [2019-11-28 21:14:48,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:14:48,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:14:48,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:14:48,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:14:48,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (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 21:14:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:14:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:14:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:14:48,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:14:49,655 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:14:49,655 INFO L287 CfgBuilder]: Removed 290 assume(true) statements. [2019-11-28 21:14:49,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:49 BoogieIcfgContainer [2019-11-28 21:14:49,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:14:49,658 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:14:49,658 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:14:49,662 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:14:49,663 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:49,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:14:47" (1/3) ... [2019-11-28 21:14:49,665 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38e9b1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:14:49, skipping insertion in model container [2019-11-28 21:14:49,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:49,666 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:48" (2/3) ... [2019-11-28 21:14:49,666 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38e9b1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:14:49, skipping insertion in model container [2019-11-28 21:14:49,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:49,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:49" (3/3) ... [2019-11-28 21:14:49,669 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2019-11-28 21:14:49,725 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:14:49,725 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:14:49,725 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:14:49,725 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:14:49,726 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:14:49,726 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:14:49,726 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:14:49,726 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:14:49,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states. [2019-11-28 21:14:49,789 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2019-11-28 21:14:49,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:49,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:49,797 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:49,797 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:49,797 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:14:49,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states. [2019-11-28 21:14:49,808 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2019-11-28 21:14:49,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:49,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:49,809 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:49,810 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:49,816 INFO L794 eck$LassoCheckResult]: Stem: 110#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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 6#L-1true havoc main_#res;havoc main_#t~ret65, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 175#L669true 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; 111#L677true main_#t~ret65 := valid_product_#res;main_~tmp~10 := main_#t~ret65;havoc main_#t~ret65; 65#L884true assume 0 != main_~tmp~10; 149#L860true ~switchedOnBeforeTS~0 := 0; 36#L758true havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 183#L779-1true [2019-11-28 21:14:49,817 INFO L796 eck$LassoCheckResult]: Loop: 183#L779-1true assume !false; 187#L696true assume test_~splverifierCounter~0 < 4; 54#L697true test_~tmp~8 := test_#t~nondet58;havoc test_#t~nondet58; 82#L705true assume !(0 != test_~tmp~8); 84#L705-1true test_~tmp___0~2 := test_#t~nondet59;havoc test_#t~nondet59; 120#L715true assume !(0 != test_~tmp___0~2); 123#L715-1true test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 38#L725true assume 0 != test_~tmp___2~0; 3#L731-2true havoc __utac_acc__Specification5_spec__2_#t~ret62;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; 62#L565true __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 182#L768true assume !(0 != ~pumpRunning~0); 19#L428true assume !(0 != ~systemActive~0); 91#L435true havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 191#L982true __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 181#L779true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 183#L779-1true [2019-11-28 21:14:49,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:49,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:14:49,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:49,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845233755] [2019-11-28 21:14:49,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:50,256 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:50,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:50,258 INFO L82 PathProgramCache]: Analyzing trace with hash 99399404, now seen corresponding path program 1 times [2019-11-28 21:14:50,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:50,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040548089] [2019-11-28 21:14:50,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:50,279 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:50,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:50,281 INFO L82 PathProgramCache]: Analyzing trace with hash 2033424614, now seen corresponding path program 1 times [2019-11-28 21:14:50,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:50,282 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823945109] [2019-11-28 21:14:50,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:50,473 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 21:14:50,474 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823945109] [2019-11-28 21:14:50,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:50,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:14:50,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039536693] [2019-11-28 21:14:50,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:50,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:14:50,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:14:50,606 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 6 states. [2019-11-28 21:14:50,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:50,769 INFO L93 Difference]: Finished difference Result 195 states and 286 transitions. [2019-11-28 21:14:50,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:14:50,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 286 transitions. [2019-11-28 21:14:50,778 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2019-11-28 21:14:50,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 188 states and 279 transitions. [2019-11-28 21:14:50,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2019-11-28 21:14:50,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2019-11-28 21:14:50,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 279 transitions. [2019-11-28 21:14:50,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:50,793 INFO L688 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2019-11-28 21:14:50,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 279 transitions. [2019-11-28 21:14:50,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2019-11-28 21:14:50,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2019-11-28 21:14:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 279 transitions. [2019-11-28 21:14:50,842 INFO L711 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2019-11-28 21:14:50,842 INFO L591 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2019-11-28 21:14:50,843 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:14:50,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 279 transitions. [2019-11-28 21:14:50,846 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2019-11-28 21:14:50,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:50,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:50,847 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:50,848 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:50,848 INFO L794 eck$LassoCheckResult]: Stem: 595#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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 433#L-1 havoc main_#res;havoc main_#t~ret65, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 434#L669 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; 586#L677 main_#t~ret65 := valid_product_#res;main_~tmp~10 := main_#t~ret65;havoc main_#t~ret65; 534#L884 assume 0 != main_~tmp~10; 487#L860 ~switchedOnBeforeTS~0 := 0; 488#L758 havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 494#L779-1 [2019-11-28 21:14:50,849 INFO L796 eck$LassoCheckResult]: Loop: 494#L779-1 assume !false; 593#L696 assume test_~splverifierCounter~0 < 4; 520#L697 test_~tmp~8 := test_#t~nondet58;havoc test_#t~nondet58; 521#L705 assume !(0 != test_~tmp~8); 567#L705-1 test_~tmp___0~2 := test_#t~nondet59;havoc test_#t~nondet59; 572#L715 assume !(0 != test_~tmp___0~2); 485#L715-1 test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 503#L725 assume 0 != test_~tmp___2~0; 413#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret62;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; 414#L565 __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 530#L768 assume !(0 != ~pumpRunning~0); 467#L428 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 468#L512 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret36, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 448#L486-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret35, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 450#L460-3 assume !(0 == ~pumpRunning~0); 416#L435 havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 584#L982 __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 591#L779 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 494#L779-1 [2019-11-28 21:14:50,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:50,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:14:50,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:50,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465364578] [2019-11-28 21:14:50,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:51,002 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:51,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:51,004 INFO L82 PathProgramCache]: Analyzing trace with hash -416203938, now seen corresponding path program 1 times [2019-11-28 21:14:51,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:51,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297851746] [2019-11-28 21:14:51,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:51,035 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 21:14:51,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297851746] [2019-11-28 21:14:51,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:51,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:14:51,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179215578] [2019-11-28 21:14:51,037 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:14:51,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:51,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:14:51,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:14:51,040 INFO L87 Difference]: Start difference. First operand 188 states and 279 transitions. cyclomatic complexity: 93 Second operand 3 states. [2019-11-28 21:14:51,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:51,194 INFO L93 Difference]: Finished difference Result 201 states and 278 transitions. [2019-11-28 21:14:51,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:14:51,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 278 transitions. [2019-11-28 21:14:51,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2019-11-28 21:14:51,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 201 states and 278 transitions. [2019-11-28 21:14:51,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 201 [2019-11-28 21:14:51,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2019-11-28 21:14:51,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 278 transitions. [2019-11-28 21:14:51,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:51,204 INFO L688 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2019-11-28 21:14:51,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 278 transitions. [2019-11-28 21:14:51,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2019-11-28 21:14:51,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-11-28 21:14:51,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2019-11-28 21:14:51,216 INFO L711 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2019-11-28 21:14:51,216 INFO L591 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2019-11-28 21:14:51,216 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:14:51,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 278 transitions. [2019-11-28 21:14:51,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2019-11-28 21:14:51,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:51,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:51,220 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:51,220 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] [2019-11-28 21:14:51,221 INFO L794 eck$LassoCheckResult]: Stem: 954#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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 824#L-1 havoc main_#res;havoc main_#t~ret65, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 825#L669 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; 947#L677 main_#t~ret65 := valid_product_#res;main_~tmp~10 := main_#t~ret65;havoc main_#t~ret65; 911#L884 assume 0 != main_~tmp~10; 872#L860 ~switchedOnBeforeTS~0 := 0; 873#L758 havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 878#L779-1 [2019-11-28 21:14:51,221 INFO L796 eck$LassoCheckResult]: Loop: 878#L779-1 assume !false; 953#L696 assume test_~splverifierCounter~0 < 4; 902#L697 test_~tmp~8 := test_#t~nondet58;havoc test_#t~nondet58; 903#L705 assume !(0 != test_~tmp~8); 933#L705-1 test_~tmp___0~2 := test_#t~nondet59;havoc test_#t~nondet59; 938#L715 assume !(0 != test_~tmp___0~2); 869#L715-1 test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 886#L725 assume 0 != test_~tmp___2~0; 806#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret62;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; 807#L565 __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 910#L768 assume !(0 != ~pumpRunning~0); 855#L428 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 856#L512 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret36, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 837#L486-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret35, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 838#L460-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret55, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 914#L990-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 862#L995-3 isHighWaterLevel_#t~ret55 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret55;havoc isHighWaterLevel_#t~ret55; 863#L614-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 918#L614-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 888#L620-3 processEnvironment__wrappee__highWaterSensor_#t~ret35 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret35;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35; 812#L464-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 814#L435 havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 944#L982 __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 952#L779 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 878#L779-1 [2019-11-28 21:14:51,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:51,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:14:51,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:51,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257787658] [2019-11-28 21:14:51,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:51,346 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:51,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:51,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1258364778, now seen corresponding path program 1 times [2019-11-28 21:14:51,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:51,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909847765] [2019-11-28 21:14:51,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:51,393 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 21:14:51,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909847765] [2019-11-28 21:14:51,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:51,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 21:14:51,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206409481] [2019-11-28 21:14:51,395 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:14:51,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:51,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:14:51,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:14:51,396 INFO L87 Difference]: Start difference. First operand 201 states and 278 transitions. cyclomatic complexity: 79 Second operand 5 states. [2019-11-28 21:14:51,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:51,665 INFO L93 Difference]: Finished difference Result 577 states and 781 transitions. [2019-11-28 21:14:51,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:14:51,666 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 577 states and 781 transitions. [2019-11-28 21:14:51,673 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 367 [2019-11-28 21:14:51,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 577 states to 577 states and 781 transitions. [2019-11-28 21:14:51,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 577 [2019-11-28 21:14:51,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 577 [2019-11-28 21:14:51,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 577 states and 781 transitions. [2019-11-28 21:14:51,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:51,691 INFO L688 BuchiCegarLoop]: Abstraction has 577 states and 781 transitions. [2019-11-28 21:14:51,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states and 781 transitions. [2019-11-28 21:14:51,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 395. [2019-11-28 21:14:51,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-11-28 21:14:51,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 532 transitions. [2019-11-28 21:14:51,725 INFO L711 BuchiCegarLoop]: Abstraction has 395 states and 532 transitions. [2019-11-28 21:14:51,725 INFO L591 BuchiCegarLoop]: Abstraction has 395 states and 532 transitions. [2019-11-28 21:14:51,726 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:14:51,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 395 states and 532 transitions. [2019-11-28 21:14:51,730 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 276 [2019-11-28 21:14:51,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:51,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:51,733 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:51,735 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, 1] [2019-11-28 21:14:51,735 INFO L794 eck$LassoCheckResult]: Stem: 1752#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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1618#L-1 havoc main_#res;havoc main_#t~ret65, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 1619#L669 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; 1743#L677 main_#t~ret65 := valid_product_#res;main_~tmp~10 := main_#t~ret65;havoc main_#t~ret65; 1707#L884 assume 0 != main_~tmp~10; 1666#L860 ~switchedOnBeforeTS~0 := 0; 1667#L758 havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1672#L779-1 [2019-11-28 21:14:51,735 INFO L796 eck$LassoCheckResult]: Loop: 1672#L779-1 assume !false; 1750#L696 assume test_~splverifierCounter~0 < 4; 1696#L697 test_~tmp~8 := test_#t~nondet58;havoc test_#t~nondet58; 1697#L705 assume !(0 != test_~tmp~8); 1728#L705-1 test_~tmp___0~2 := test_#t~nondet59;havoc test_#t~nondet59; 1733#L715 assume !(0 != test_~tmp___0~2); 1663#L715-1 test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 1680#L725 assume 0 != test_~tmp___2~0; 1600#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret62;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; 1601#L565 __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 1704#L768 assume !(0 != ~pumpRunning~0); 1649#L428 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1650#L512 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret36, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 1631#L486-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret35, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1632#L460-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret55, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1708#L990-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1761#L995-3 isHighWaterLevel_#t~ret55 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret55;havoc isHighWaterLevel_#t~ret55; 1953#L614-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 1950#L614-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1682#L620-3 processEnvironment__wrappee__highWaterSensor_#t~ret35 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret35;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35; 1606#L464-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1608#L435 havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1739#L982 __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 1749#L779 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; 1681#L565-1 __utac_acc__Specification5_spec__3_#t~ret64 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret64;havoc __utac_acc__Specification5_spec__3_#t~ret64; 1671#L783 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 1672#L779-1 [2019-11-28 21:14:51,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:51,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 21:14:51,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:51,737 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793755822] [2019-11-28 21:14:51,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:51,830 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:51,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:51,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1892234555, now seen corresponding path program 1 times [2019-11-28 21:14:51,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:51,831 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991854178] [2019-11-28 21:14:51,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:51,861 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:51,861 INFO L82 PathProgramCache]: Analyzing trace with hash 436521099, now seen corresponding path program 1 times [2019-11-28 21:14:51,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:51,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553691066] [2019-11-28 21:14:51,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:51,975 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:52,154 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-28 21:14:52,276 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-11-28 21:15:15,972 WARN L192 SmtUtils]: Spent 23.68 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:15:30,320 WARN L192 SmtUtils]: Spent 14.33 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:15:30,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:15:30 BoogieIcfgContainer [2019-11-28 21:15:30,397 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:15:30,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:15:30,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:15:30,398 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:15:30,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:49" (3/4) ... [2019-11-28 21:15:30,402 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:15:30,468 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:15:30,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:15:30,470 INFO L168 Benchmark]: Toolchain (without parser) took 42921.30 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 256.4 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 110.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:30,471 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:15:30,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -94.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:30,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.68 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:30,473 INFO L168 Benchmark]: Boogie Preprocessor took 68.65 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:30,474 INFO L168 Benchmark]: RCFGBuilder took 1178.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 961.3 MB in the end (delta: 82.2 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:30,475 INFO L168 Benchmark]: BuchiAutomizer took 40738.91 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 179.3 MB). Free memory was 961.3 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 384.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:30,475 INFO L168 Benchmark]: Witness Printer took 71.16 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:15:30,478 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 762.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -94.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.68 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.65 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1178.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 961.3 MB in the end (delta: 82.2 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40738.91 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 179.3 MB). Free memory was 961.3 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 384.9 MB. Max. memory is 11.5 GB. * Witness Printer took 71.16 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. 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 6 locations. The remainder module has 395 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 39.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 182 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 395 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 845 SDtfs, 1995 SDslu, 843 SDs, 0 SdLazy, 169 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 695]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2692} State at position 1 is {retValue_acc=1, NULL=0, NULL=0, NULL=2692, NULL=23529, NULL=4599, NULL=0, methaneLevelCritical=0, retValue_acc=0, NULL=0, tmp=0, tmp___1=0, NULL=4593, NULL=23528, NULL=14777, cleanupTimeShifts=4, NULL=14776, tmp=1, NULL=0, NULL=0, waterLevel=1, NULL=0, NULL=23530, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fde84ef=0, head=0, pumpRunning=0, \result=1, NULL=0, NULL=4598, NULL=0, NULL=0, tmp___0=0, NULL=23534, tmp=1, NULL=23539, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71767730=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@174786da=0, head=0, NULL=0, tmp=0, NULL=14774, NULL=23535, NULL=0, NULL=0, NULL=0, retValue_acc=0, tmp=1, tmp___0=0, NULL=0, tmp=0, NULL=23536, tmp=0, switchedOnBeforeTS=0, NULL=23533, NULL=23531, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@796a4e5f=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c45a529=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=4922, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70d75372=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=4595, \result=0, NULL=23538, tmp___0=0, NULL=4594, NULL=0, NULL=0, NULL=4596, NULL=4597, NULL=23540, retValue_acc=1, retValue_acc=1, tmp___2=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a4853c7=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25e07a00=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9b28160=0, NULL=14775, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15a0df34=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b15a5ce=55, NULL=0, NULL=23537, NULL=23532, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9024b76=0, retValue_acc=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; [L416] int pumpRunning = 0; [L417] int systemActive = 1; [L752] int switchedOnBeforeTS ; [L801] int cleanupTimeShifts = 4; [L907] int waterLevel = 1; [L908] int methaneLevelCritical = 0; [L875] int retValue_acc ; [L876] int tmp ; [L673] int retValue_acc ; [L676] retValue_acc = 1 [L677] return (retValue_acc); [L882] tmp = valid_product() [L884] COND TRUE \read(tmp) [L757] switchedOnBeforeTS = 0 [L686] int splverifierCounter ; [L687] int tmp ; [L688] int tmp___0 ; [L689] int tmp___1 ; [L690] int tmp___2 ; [L693] splverifierCounter = 0 Loop: [L695] COND TRUE 1 [L697] COND TRUE splverifierCounter < 4 [L703] tmp = __VERIFIER_nondet_int() [L705] COND FALSE !(\read(tmp)) [L713] tmp___0 = __VERIFIER_nondet_int() [L715] COND FALSE !(\read(tmp___0)) [L723] tmp___2 = __VERIFIER_nondet_int() [L725] COND TRUE \read(tmp___2) [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); [L766] switchedOnBeforeTS = isPumpRunning() [L428] COND FALSE !(\read(pumpRunning)) [L435] COND TRUE \read(systemActive) [L509] int tmp ; [L512] COND FALSE !(\read(pumpRunning)) [L483] int tmp ; [L486] COND FALSE !(\read(pumpRunning)) [L457] int tmp ; [L460] COND TRUE ! pumpRunning [L606] int retValue_acc ; [L607] int tmp ; [L608] int tmp___0 ; [L987] int retValue_acc ; [L990] COND TRUE waterLevel < 2 [L991] retValue_acc = 1 [L992] return (retValue_acc); [L612] tmp = isHighWaterSensorDry() [L614] COND TRUE \read(tmp) [L615] tmp___0 = 0 [L619] retValue_acc = tmp___0 [L620] return (retValue_acc); [L462] tmp = isHighWaterLevel() [L464] COND FALSE !(\read(tmp)) [L772] int tmp ; [L773] int tmp___0 ; [L978] int retValue_acc ; [L981] retValue_acc = waterLevel [L982] return (retValue_acc); [L777] tmp = getWaterLevel() [L779] COND TRUE tmp != 2 [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); [L781] tmp___0 = isPumpRunning() [L783] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...