./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec1_product51_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_spec1_product51_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 0d6f6f11832d8f580d186172cf5d58d3f276ea91 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:41:25,291 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:41:25,293 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:41:25,308 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:41:25,308 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:41:25,311 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:41:25,313 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:41:25,315 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:41:25,317 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:41:25,318 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:41:25,319 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:41:25,320 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:41:25,321 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:41:25,322 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:41:25,324 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:41:25,325 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:41:25,326 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:41:25,328 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:41:25,331 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:41:25,332 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:41:25,334 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:41:25,335 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:41:25,338 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:41:25,339 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:41:25,339 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:41:25,340 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:41:25,342 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:41:25,342 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:41:25,343 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:41:25,345 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:41:25,345 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:41:25,346 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:41:25,346 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:41:25,347 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:41:25,348 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:41:25,349 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:41:25,349 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:41:25,375 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:41:25,375 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:41:25,376 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:41:25,376 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:41:25,382 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:41:25,382 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:41:25,382 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:41:25,383 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:41:25,383 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:41:25,383 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:41:25,383 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:41:25,384 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:41:25,386 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:41:25,386 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:41:25,386 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:41:25,386 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:41:25,387 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:41:25,387 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:41:25,387 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:41:25,387 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:41:25,387 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:41:25,388 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:41:25,388 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:41:25,388 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:41:25,388 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:41:25,388 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:41:25,389 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:41:25,393 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:41:25,394 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:41:25,394 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:41:25,394 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 -> 0d6f6f11832d8f580d186172cf5d58d3f276ea91 [2018-11-28 18:41:25,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:41:25,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:41:25,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:41:25,480 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:41:25,480 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:41:25,481 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec1_product51_false-unreach-call_false-termination.cil.c [2018-11-28 18:41:25,537 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84e877fae/3f71fda92d5c4370b20f6055d7ff03ad/FLAG8434cd357 [2018-11-28 18:41:26,068 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:41:26,069 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec1_product51_false-unreach-call_false-termination.cil.c [2018-11-28 18:41:26,088 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84e877fae/3f71fda92d5c4370b20f6055d7ff03ad/FLAG8434cd357 [2018-11-28 18:41:26,337 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84e877fae/3f71fda92d5c4370b20f6055d7ff03ad [2018-11-28 18:41:26,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:41:26,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:41:26,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:41:26,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:41:26,350 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:41:26,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:41:26" (1/1) ... [2018-11-28 18:41:26,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71aa32a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:26, skipping insertion in model container [2018-11-28 18:41:26,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:41:26" (1/1) ... [2018-11-28 18:41:26,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:41:26,436 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:41:26,842 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:41:26,857 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:41:26,972 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:41:27,014 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:41:27,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27 WrapperNode [2018-11-28 18:41:27,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:41:27,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:41:27,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:41:27,016 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:41:27,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (1/1) ... [2018-11-28 18:41:27,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (1/1) ... [2018-11-28 18:41:27,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:41:27,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:41:27,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:41:27,144 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:41:27,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (1/1) ... [2018-11-28 18:41:27,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (1/1) ... [2018-11-28 18:41:27,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (1/1) ... [2018-11-28 18:41:27,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (1/1) ... [2018-11-28 18:41:27,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (1/1) ... [2018-11-28 18:41:27,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (1/1) ... [2018-11-28 18:41:27,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (1/1) ... [2018-11-28 18:41:27,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:41:27,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:41:27,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:41:27,209 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:41:27,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (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 18:41:27,272 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-28 18:41:27,272 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-28 18:41:27,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:41:27,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:41:27,273 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-28 18:41:27,273 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-28 18:41:27,273 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-28 18:41:27,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-28 18:41:27,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:41:27,274 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-28 18:41:27,274 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-28 18:41:27,274 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-28 18:41:27,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-28 18:41:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-28 18:41:27,275 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-28 18:41:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-28 18:41:27,275 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-28 18:41:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-28 18:41:27,275 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-28 18:41:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-28 18:41:27,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-28 18:41:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-28 18:41:27,276 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-28 18:41:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-28 18:41:27,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-28 18:41:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-28 18:41:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-28 18:41:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-28 18:41:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-28 18:41:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-28 18:41:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-28 18:41:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-28 18:41:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-28 18:41:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 18:41:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 18:41:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-28 18:41:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-28 18:41:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-28 18:41:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-28 18:41:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-28 18:41:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-28 18:41:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-28 18:41:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-28 18:41:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-28 18:41:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-28 18:41:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-28 18:41:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-28 18:41:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 18:41:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:41:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:41:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-28 18:41:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-28 18:41:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-28 18:41:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-28 18:41:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:41:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:41:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-28 18:41:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-28 18:41:28,427 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:41:28,428 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 18:41:28,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:41:28 BoogieIcfgContainer [2018-11-28 18:41:28,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:41:28,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:41:28,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:41:28,433 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:41:28,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:41:26" (1/3) ... [2018-11-28 18:41:28,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7ad72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:41:28, skipping insertion in model container [2018-11-28 18:41:28,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:27" (2/3) ... [2018-11-28 18:41:28,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7ad72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:41:28, skipping insertion in model container [2018-11-28 18:41:28,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:41:28" (3/3) ... [2018-11-28 18:41:28,436 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51_false-unreach-call_false-termination.cil.c [2018-11-28 18:41:28,447 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:41:28,455 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:41:28,474 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:41:28,508 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:41:28,509 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:41:28,509 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:41:28,509 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:41:28,509 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:41:28,509 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:41:28,509 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:41:28,510 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:41:28,510 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:41:28,532 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-11-28 18:41:28,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 18:41:28,543 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:28,544 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] [2018-11-28 18:41:28,547 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:28,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:28,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1518317157, now seen corresponding path program 1 times [2018-11-28 18:41:28,555 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:28,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:28,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:28,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:28,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:28,918 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 18:41:28,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:28,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:41:28,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:41:28,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:41:28,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:41:28,947 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-11-28 18:41:28,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:28,994 INFO L93 Difference]: Finished difference Result 268 states and 333 transitions. [2018-11-28 18:41:28,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:41:28,995 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-28 18:41:28,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:29,013 INFO L225 Difference]: With dead ends: 268 [2018-11-28 18:41:29,013 INFO L226 Difference]: Without dead ends: 134 [2018-11-28 18:41:29,019 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 18:41:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-28 18:41:29,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-11-28 18:41:29,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-28 18:41:29,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2018-11-28 18:41:29,085 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 46 [2018-11-28 18:41:29,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:29,086 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2018-11-28 18:41:29,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:41:29,086 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2018-11-28 18:41:29,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 18:41:29,090 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:29,090 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] [2018-11-28 18:41:29,091 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:29,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:29,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1366591448, now seen corresponding path program 1 times [2018-11-28 18:41:29,091 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:29,092 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:29,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:29,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:29,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:29,252 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 18:41:29,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:29,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:41:29,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:41:29,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:41:29,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:41:29,255 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 3 states. [2018-11-28 18:41:29,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:29,286 INFO L93 Difference]: Finished difference Result 211 states and 247 transitions. [2018-11-28 18:41:29,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:41:29,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-28 18:41:29,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:29,290 INFO L225 Difference]: With dead ends: 211 [2018-11-28 18:41:29,290 INFO L226 Difference]: Without dead ends: 125 [2018-11-28 18:41:29,292 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 18:41:29,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-11-28 18:41:29,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-11-28 18:41:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-11-28 18:41:29,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2018-11-28 18:41:29,311 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 47 [2018-11-28 18:41:29,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:29,311 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2018-11-28 18:41:29,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:41:29,312 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2018-11-28 18:41:29,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-28 18:41:29,314 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:29,314 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] [2018-11-28 18:41:29,315 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:29,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:29,315 INFO L82 PathProgramCache]: Analyzing trace with hash -298105792, now seen corresponding path program 1 times [2018-11-28 18:41:29,315 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:29,315 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:29,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:29,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:29,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:29,554 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 18:41:29,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:29,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:41:29,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:41:29,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:41:29,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:41:29,557 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 7 states. [2018-11-28 18:41:30,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:30,922 INFO L93 Difference]: Finished difference Result 377 states and 456 transitions. [2018-11-28 18:41:30,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:41:30,923 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-11-28 18:41:30,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:30,933 INFO L225 Difference]: With dead ends: 377 [2018-11-28 18:41:30,933 INFO L226 Difference]: Without dead ends: 276 [2018-11-28 18:41:30,940 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:41:30,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2018-11-28 18:41:31,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 268. [2018-11-28 18:41:31,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-11-28 18:41:31,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 324 transitions. [2018-11-28 18:41:31,026 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 324 transitions. Word has length 51 [2018-11-28 18:41:31,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:31,027 INFO L480 AbstractCegarLoop]: Abstraction has 268 states and 324 transitions. [2018-11-28 18:41:31,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:41:31,027 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 324 transitions. [2018-11-28 18:41:31,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 18:41:31,037 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:31,037 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 18:41:31,037 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:31,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:31,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1338098279, now seen corresponding path program 1 times [2018-11-28 18:41:31,038 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:31,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:31,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:31,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:31,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:31,300 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 18:41:31,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:31,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:41:31,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:41:31,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:41:31,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:41:31,301 INFO L87 Difference]: Start difference. First operand 268 states and 324 transitions. Second operand 6 states. [2018-11-28 18:41:31,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:31,936 INFO L93 Difference]: Finished difference Result 741 states and 920 transitions. [2018-11-28 18:41:31,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:41:31,940 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-11-28 18:41:31,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:31,947 INFO L225 Difference]: With dead ends: 741 [2018-11-28 18:41:31,947 INFO L226 Difference]: Without dead ends: 497 [2018-11-28 18:41:31,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:41:31,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2018-11-28 18:41:32,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 491. [2018-11-28 18:41:32,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2018-11-28 18:41:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 598 transitions. [2018-11-28 18:41:32,034 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 598 transitions. Word has length 57 [2018-11-28 18:41:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:32,035 INFO L480 AbstractCegarLoop]: Abstraction has 491 states and 598 transitions. [2018-11-28 18:41:32,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:41:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 598 transitions. [2018-11-28 18:41:32,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-28 18:41:32,046 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:32,047 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] [2018-11-28 18:41:32,047 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:32,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:32,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1086085213, now seen corresponding path program 1 times [2018-11-28 18:41:32,048 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:32,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:32,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:32,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:32,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:32,271 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 18:41:32,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:32,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:41:32,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:41:32,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:41:32,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:41:32,274 INFO L87 Difference]: Start difference. First operand 491 states and 598 transitions. Second operand 7 states. [2018-11-28 18:41:33,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:33,302 INFO L93 Difference]: Finished difference Result 1276 states and 1671 transitions. [2018-11-28 18:41:33,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 18:41:33,304 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-11-28 18:41:33,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:33,310 INFO L225 Difference]: With dead ends: 1276 [2018-11-28 18:41:33,311 INFO L226 Difference]: Without dead ends: 809 [2018-11-28 18:41:33,313 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-28 18:41:33,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2018-11-28 18:41:33,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 713. [2018-11-28 18:41:33,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2018-11-28 18:41:33,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 867 transitions. [2018-11-28 18:41:33,391 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 867 transitions. Word has length 61 [2018-11-28 18:41:33,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:33,391 INFO L480 AbstractCegarLoop]: Abstraction has 713 states and 867 transitions. [2018-11-28 18:41:33,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:41:33,391 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 867 transitions. [2018-11-28 18:41:33,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-28 18:41:33,395 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:33,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:41:33,395 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:33,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:33,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1262622803, now seen corresponding path program 1 times [2018-11-28 18:41:33,397 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:33,397 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:33,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:33,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:33,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:33,666 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 18:41:33,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:33,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:41:33,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:41:33,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:41:33,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:41:33,668 INFO L87 Difference]: Start difference. First operand 713 states and 867 transitions. Second operand 6 states. [2018-11-28 18:41:34,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:34,068 INFO L93 Difference]: Finished difference Result 1422 states and 1760 transitions. [2018-11-28 18:41:34,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 18:41:34,069 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-11-28 18:41:34,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:34,074 INFO L225 Difference]: With dead ends: 1422 [2018-11-28 18:41:34,074 INFO L226 Difference]: Without dead ends: 733 [2018-11-28 18:41:34,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:41:34,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2018-11-28 18:41:34,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2018-11-28 18:41:34,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-11-28 18:41:34,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 887 transitions. [2018-11-28 18:41:34,128 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 887 transitions. Word has length 83 [2018-11-28 18:41:34,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:34,128 INFO L480 AbstractCegarLoop]: Abstraction has 733 states and 887 transitions. [2018-11-28 18:41:34,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:41:34,129 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 887 transitions. [2018-11-28 18:41:34,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-28 18:41:34,131 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:34,131 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:41:34,131 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:34,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:34,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1239990549, now seen corresponding path program 1 times [2018-11-28 18:41:34,131 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:34,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:34,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:34,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:34,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:34,808 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 18:41:34,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:34,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 18:41:34,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 18:41:34,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 18:41:34,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:41:34,811 INFO L87 Difference]: Start difference. First operand 733 states and 887 transitions. Second operand 8 states. [2018-11-28 18:41:35,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:35,093 INFO L93 Difference]: Finished difference Result 1470 states and 1838 transitions. [2018-11-28 18:41:35,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:41:35,094 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2018-11-28 18:41:35,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:35,100 INFO L225 Difference]: With dead ends: 1470 [2018-11-28 18:41:35,101 INFO L226 Difference]: Without dead ends: 761 [2018-11-28 18:41:35,104 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:41:35,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2018-11-28 18:41:35,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 749. [2018-11-28 18:41:35,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2018-11-28 18:41:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 903 transitions. [2018-11-28 18:41:35,154 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 903 transitions. Word has length 83 [2018-11-28 18:41:35,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:35,155 INFO L480 AbstractCegarLoop]: Abstraction has 749 states and 903 transitions. [2018-11-28 18:41:35,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 18:41:35,156 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 903 transitions. [2018-11-28 18:41:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-28 18:41:35,160 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:35,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:41:35,160 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:35,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:35,160 INFO L82 PathProgramCache]: Analyzing trace with hash -214498550, now seen corresponding path program 1 times [2018-11-28 18:41:35,161 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:35,161 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:35,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:35,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:35,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:35,537 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-28 18:41:35,546 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 18:41:35,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:35,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 18:41:35,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 18:41:35,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 18:41:35,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:41:35,548 INFO L87 Difference]: Start difference. First operand 749 states and 903 transitions. Second operand 4 states. [2018-11-28 18:41:37,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:37,107 INFO L93 Difference]: Finished difference Result 2435 states and 3082 transitions. [2018-11-28 18:41:37,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 18:41:37,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2018-11-28 18:41:37,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:37,121 INFO L225 Difference]: With dead ends: 2435 [2018-11-28 18:41:37,121 INFO L226 Difference]: Without dead ends: 1710 [2018-11-28 18:41:37,125 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:41:37,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2018-11-28 18:41:37,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1679. [2018-11-28 18:41:37,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1679 states. [2018-11-28 18:41:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2075 transitions. [2018-11-28 18:41:37,260 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2075 transitions. Word has length 83 [2018-11-28 18:41:37,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:37,261 INFO L480 AbstractCegarLoop]: Abstraction has 1679 states and 2075 transitions. [2018-11-28 18:41:37,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 18:41:37,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2075 transitions. [2018-11-28 18:41:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-28 18:41:37,269 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:37,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:41:37,270 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:37,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:37,270 INFO L82 PathProgramCache]: Analyzing trace with hash 828381552, now seen corresponding path program 1 times [2018-11-28 18:41:37,270 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:37,270 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:37,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:37,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:37,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:41:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:41:37,484 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:41:37,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:41:37 BoogieIcfgContainer [2018-11-28 18:41:37,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:41:37,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:41:37,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:41:37,716 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:41:37,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:41:28" (3/4) ... [2018-11-28 18:41:37,724 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 18:41:37,946 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:41:37,946 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:41:37,947 INFO L168 Benchmark]: Toolchain (without parser) took 11604.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 951.4 MB in the beginning and 871.2 MB in the end (delta: 80.2 MB). Peak memory consumption was 286.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:37,950 INFO L168 Benchmark]: CDTParser took 0.15 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 18:41:37,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.98 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 924.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:37,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 924.5 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:37,951 INFO L168 Benchmark]: Boogie Preprocessor took 64.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:41:37,952 INFO L168 Benchmark]: RCFGBuilder took 1219.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:37,952 INFO L168 Benchmark]: TraceAbstraction took 9286.47 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 894.8 MB in the end (delta: 181.8 MB). Peak memory consumption was 254.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:37,952 INFO L168 Benchmark]: Witness Printer took 229.88 ms. Allocated memory is still 1.2 GB. Free memory was 894.8 MB in the beginning and 871.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:37,957 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 669.98 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 924.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 127.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 924.5 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1219.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9286.47 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 894.8 MB in the end (delta: 181.8 MB). Peak memory consumption was 254.1 MB. Max. memory is 11.5 GB. * Witness Printer took 229.88 ms. Allocated memory is still 1.2 GB. Free memory was 894.8 MB in the beginning and 871.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 704]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L503] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L773] int cleanupTimeShifts = 4; [L870] int waterLevel = 1; [L871] int methaneLevelCritical = 0; [L846] int retValue_acc ; [L847] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L851] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L738] int retValue_acc ; [L741] retValue_acc = 1 [L742] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L853] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L853] tmp = valid_product() [L855] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L857] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L858] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L840] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L67] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L888] COND TRUE waterLevel < 2 [L889] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L67] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L77] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L900] COND FALSE !(\read(methaneLevelCritical)) [L903] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L77] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L100] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L129] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L136] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L138] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L184] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L187] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L202] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L158] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L161] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L163] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L281] int retValue_acc ; [L282] int tmp ; [L283] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L287] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L950] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L953] COND FALSE !(waterLevel < 2) [L957] retValue_acc = 0 [L958] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L287] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L287] tmp = isHighWaterSensorDry() [L289] COND FALSE !(\read(tmp)) [L292] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L294] retValue_acc = tmp___0 [L295] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L163] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L163] tmp = isHighWaterLevel() [L165] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L167] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L212] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L167] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L202] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L138] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L144] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L748] int tmp ; [L749] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L753] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L909] int retValue_acc ; [L912] retValue_acc = methaneLevelCritical [L913] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L753] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L753] tmp = isMethaneLevelCritical() [L755] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L757] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L757] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L757] tmp___0 = isPumpRunning() [L759] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L761] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L704] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 147 locations, 1 error locations. UNSAFE Result, 9.2s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 5.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1335 SDtfs, 724 SDslu, 3204 SDs, 0 SdLazy, 880 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1679occurred in iteration=8, 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 153 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 598 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 503 ConstructedInterpolants, 0 QuantifiedInterpolants, 55539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...