./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product17_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec3_product17_false-unreach-call_false-termination.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ac89a83bf5f8cec9ed1c7380129a7935c1d366c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:42:05,283 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:42:05,285 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:42:05,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:42:05,298 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:42:05,299 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:42:05,301 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:42:05,303 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:42:05,305 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:42:05,306 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:42:05,307 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:42:05,307 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:42:05,309 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:42:05,310 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:42:05,311 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:42:05,312 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:42:05,313 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:42:05,315 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:42:05,317 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:42:05,319 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:42:05,320 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:42:05,321 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:42:05,324 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:42:05,325 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:42:05,325 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:42:05,326 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:42:05,327 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:42:05,328 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:42:05,329 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:42:05,330 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:42:05,331 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:42:05,331 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:42:05,331 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:42:05,332 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:42:05,333 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:42:05,334 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:42:05,334 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:42:05,364 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:42:05,366 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:42:05,366 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:42:05,367 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:42:05,367 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:42:05,367 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:42:05,368 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:42:05,370 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:42:05,370 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:42:05,370 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:42:05,370 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:42:05,370 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:42:05,371 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:42:05,371 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:42:05,371 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:42:05,372 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:42:05,372 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:42:05,372 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:42:05,372 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:42:05,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:42:05,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:42:05,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:42:05,375 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:42:05,375 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:42:05,375 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:42:05,375 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:42:05,375 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:42:05,375 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:42:05,377 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:42:05,377 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:42:05,378 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(G ! call(__VERIFIER_error())) ) 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 -> 5ac89a83bf5f8cec9ed1c7380129a7935c1d366c [2018-11-28 18:42:05,435 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:42:05,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:42:05,457 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:42:05,459 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:42:05,460 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:42:05,461 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product17_false-unreach-call_false-termination.cil.c [2018-11-28 18:42:05,541 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d147621d/9722fcf4cf7746028181d03fdd2daaed/FLAGea1505536 [2018-11-28 18:42:06,119 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:42:06,120 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product17_false-unreach-call_false-termination.cil.c [2018-11-28 18:42:06,134 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d147621d/9722fcf4cf7746028181d03fdd2daaed/FLAGea1505536 [2018-11-28 18:42:06,414 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d147621d/9722fcf4cf7746028181d03fdd2daaed [2018-11-28 18:42:06,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:42:06,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:42:06,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:42:06,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:42:06,426 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:42:06,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:42:06" (1/1) ... [2018-11-28 18:42:06,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778bf54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:06, skipping insertion in model container [2018-11-28 18:42:06,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:42:06" (1/1) ... [2018-11-28 18:42:06,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:42:06,509 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:42:06,875 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:42:06,901 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:42:07,044 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:42:07,091 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:42:07,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07 WrapperNode [2018-11-28 18:42:07,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:42:07,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:42:07,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:42:07,094 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:42:07,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (1/1) ... [2018-11-28 18:42:07,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (1/1) ... [2018-11-28 18:42:07,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:42:07,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:42:07,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:42:07,212 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:42:07,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (1/1) ... [2018-11-28 18:42:07,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (1/1) ... [2018-11-28 18:42:07,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (1/1) ... [2018-11-28 18:42:07,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (1/1) ... [2018-11-28 18:42:07,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (1/1) ... [2018-11-28 18:42:07,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (1/1) ... [2018-11-28 18:42:07,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (1/1) ... [2018-11-28 18:42:07,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:42:07,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:42:07,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:42:07,269 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:42:07,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:42:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-28 18:42:07,327 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-28 18:42:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:42:07,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:42:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-28 18:42:07,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-28 18:42:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:42:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-28 18:42:07,328 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-28 18:42:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-28 18:42:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-28 18:42:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-28 18:42:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-28 18:42:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-28 18:42:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-28 18:42:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-28 18:42:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-28 18:42:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-28 18:42:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-28 18:42:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-28 18:42:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-28 18:42:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-28 18:42:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-28 18:42:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-28 18:42:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-28 18:42:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-28 18:42:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-28 18:42:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-28 18:42:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-28 18:42:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-28 18:42:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-28 18:42:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-28 18:42:07,334 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-28 18:42:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-28 18:42:07,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-28 18:42:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-28 18:42:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-28 18:42:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-28 18:42:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-28 18:42:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 18:42:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:42:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:42:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-28 18:42:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-28 18:42:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-11-28 18:42:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-11-28 18:42:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-28 18:42:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-28 18:42:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:42:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:42:08,422 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:42:08,423 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 18:42:08,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:42:08 BoogieIcfgContainer [2018-11-28 18:42:08,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:42:08,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:42:08,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:42:08,429 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:42:08,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:42:06" (1/3) ... [2018-11-28 18:42:08,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778f2da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:42:08, skipping insertion in model container [2018-11-28 18:42:08,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:42:07" (2/3) ... [2018-11-28 18:42:08,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778f2da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:42:08, skipping insertion in model container [2018-11-28 18:42:08,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:42:08" (3/3) ... [2018-11-28 18:42:08,434 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17_false-unreach-call_false-termination.cil.c [2018-11-28 18:42:08,445 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:42:08,456 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:42:08,475 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:42:08,509 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:42:08,510 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:42:08,510 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:42:08,510 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:42:08,511 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:42:08,511 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:42:08,511 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:42:08,511 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:42:08,512 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:42:08,536 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2018-11-28 18:42:08,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-28 18:42:08,547 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:42:08,548 INFO L402 BasicCegarLoop]: trace 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, 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] [2018-11-28 18:42:08,551 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:42:08,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:42:08,558 INFO L82 PathProgramCache]: Analyzing trace with hash -991151300, now seen corresponding path program 1 times [2018-11-28 18:42:08,560 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:42:08,560 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:42:08,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:42:08,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:42:08,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:42:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:42:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:42:08,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:42:08,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:42:08,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:42:08,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:42:08,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:42:08,938 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 2 states. [2018-11-28 18:42:08,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:42:08,993 INFO L93 Difference]: Finished difference Result 220 states and 273 transitions. [2018-11-28 18:42:08,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:42:08,995 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-11-28 18:42:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:42:09,013 INFO L225 Difference]: With dead ends: 220 [2018-11-28 18:42:09,015 INFO L226 Difference]: Without dead ends: 110 [2018-11-28 18:42:09,021 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:42:09,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-11-28 18:42:09,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-11-28 18:42:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-11-28 18:42:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2018-11-28 18:42:09,090 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 52 [2018-11-28 18:42:09,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:42:09,091 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2018-11-28 18:42:09,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:42:09,091 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2018-11-28 18:42:09,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-28 18:42:09,095 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:42:09,096 INFO L402 BasicCegarLoop]: trace 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, 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, 1] [2018-11-28 18:42:09,096 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:42:09,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:42:09,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1356499299, now seen corresponding path program 1 times [2018-11-28 18:42:09,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:42:09,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:42:09,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:42:09,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:42:09,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:42:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:42:09,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:42:09,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:42:09,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:42:09,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:42:09,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:42:09,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:42:09,284 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand 3 states. [2018-11-28 18:42:09,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:42:09,318 INFO L93 Difference]: Finished difference Result 169 states and 195 transitions. [2018-11-28 18:42:09,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:42:09,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-11-28 18:42:09,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:42:09,322 INFO L225 Difference]: With dead ends: 169 [2018-11-28 18:42:09,322 INFO L226 Difference]: Without dead ends: 101 [2018-11-28 18:42:09,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:42:09,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-28 18:42:09,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2018-11-28 18:42:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-11-28 18:42:09,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2018-11-28 18:42:09,341 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 53 [2018-11-28 18:42:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:42:09,341 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2018-11-28 18:42:09,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:42:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2018-11-28 18:42:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 18:42:09,345 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:42:09,345 INFO L402 BasicCegarLoop]: trace 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, 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, 1, 1, 1, 1, 1] [2018-11-28 18:42:09,346 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:42:09,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:42:09,346 INFO L82 PathProgramCache]: Analyzing trace with hash 596852059, now seen corresponding path program 1 times [2018-11-28 18:42:09,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:42:09,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:42:09,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:42:09,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:42:09,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:42:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:42:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:42:09,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:42:09,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:42:09,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:42:09,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:42:09,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:42:09,557 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 7 states. [2018-11-28 18:42:10,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:42:10,182 INFO L93 Difference]: Finished difference Result 178 states and 209 transitions. [2018-11-28 18:42:10,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 18:42:10,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-11-28 18:42:10,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:42:10,185 INFO L225 Difference]: With dead ends: 178 [2018-11-28 18:42:10,185 INFO L226 Difference]: Without dead ends: 101 [2018-11-28 18:42:10,187 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:42:10,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-28 18:42:10,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2018-11-28 18:42:10,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-11-28 18:42:10,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2018-11-28 18:42:10,204 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 57 [2018-11-28 18:42:10,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:42:10,207 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2018-11-28 18:42:10,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:42:10,207 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2018-11-28 18:42:10,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-28 18:42:10,209 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:42:10,210 INFO L402 BasicCegarLoop]: trace 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:42:10,210 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:42:10,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:42:10,210 INFO L82 PathProgramCache]: Analyzing trace with hash -2049483316, now seen corresponding path program 1 times [2018-11-28 18:42:10,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:42:10,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:42:10,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:42:10,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:42:10,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:42:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:42:10,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:42:10,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:42:10,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:42:10,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:42:10,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:42:10,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:42:10,515 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 6 states. [2018-11-28 18:42:11,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:42:11,258 INFO L93 Difference]: Finished difference Result 244 states and 293 transitions. [2018-11-28 18:42:11,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:42:11,261 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2018-11-28 18:42:11,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:42:11,265 INFO L225 Difference]: With dead ends: 244 [2018-11-28 18:42:11,266 INFO L226 Difference]: Without dead ends: 167 [2018-11-28 18:42:11,268 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:42:11,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-11-28 18:42:11,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2018-11-28 18:42:11,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-11-28 18:42:11,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 193 transitions. [2018-11-28 18:42:11,293 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 193 transitions. Word has length 65 [2018-11-28 18:42:11,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:42:11,295 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 193 transitions. [2018-11-28 18:42:11,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:42:11,296 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 193 transitions. [2018-11-28 18:42:11,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-28 18:42:11,298 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:42:11,299 INFO L402 BasicCegarLoop]: trace 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:42:11,299 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:42:11,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:42:11,299 INFO L82 PathProgramCache]: Analyzing trace with hash 528506258, now seen corresponding path program 1 times [2018-11-28 18:42:11,301 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:42:11,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:42:11,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:42:11,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:42:11,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:42:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:42:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:42:11,520 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:42:11,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:42:11 BoogieIcfgContainer [2018-11-28 18:42:11,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:42:11,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:42:11,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:42:11,680 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:42:11,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:42:08" (3/4) ... [2018-11-28 18:42:11,685 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 18:42:11,868 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:42:11,868 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:42:11,869 INFO L168 Benchmark]: Toolchain (without parser) took 5450.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 951.3 MB in the beginning and 843.6 MB in the end (delta: 107.7 MB). Peak memory consumption was 214.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:42:11,871 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:42:11,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.57 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 919.1 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:42:11,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 919.1 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:42:11,873 INFO L168 Benchmark]: Boogie Preprocessor took 57.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:42:11,873 INFO L168 Benchmark]: RCFGBuilder took 1154.83 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: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:42:11,875 INFO L168 Benchmark]: TraceAbstraction took 3251.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 870.9 MB in the end (delta: 177.5 MB). Peak memory consumption was 177.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:42:11,876 INFO L168 Benchmark]: Witness Printer took 189.09 ms. Allocated memory is still 1.1 GB. Free memory was 870.9 MB in the beginning and 850.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:42:11,879 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 671.57 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 919.1 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 117.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 919.1 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1154.83 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: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3251.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 870.9 MB in the end (delta: 177.5 MB). Peak memory consumption was 177.5 MB. Max. memory is 11.5 GB. * Witness Printer took 189.09 ms. Allocated memory is still 1.1 GB. Free memory was 870.9 MB in the beginning and 850.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L735] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=195, \old(head)=182, \old(head)=200, \old(methaneLevelCritical)=156, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L811] int retValue_acc ; [L812] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L816] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L818] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L818] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L818] tmp = valid_product() [L820] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L822] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L823] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L523] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L525] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L531] tmp = __VERIFIER_nondet_int() [L533] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L535] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L535] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L566] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L590] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L619] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L637] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L876] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L876] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L876] tmp = isMethaneLevelCritical() [L878] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L882] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L882] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L882] tmp___0 = getWaterLevel() [L884] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L886] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L671] int retValue_acc ; [L674] retValue_acc = pumpRunning [L675] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L886] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L886] tmp___1 = isPumpRunning() [L888] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L892] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 24 procedures, 123 locations, 1 error locations. UNSAFE Result, 3.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 490 SDtfs, 241 SDslu, 761 SDs, 0 SdLazy, 170 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 20977 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...