./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product55_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product55_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer --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 f98010979adc33ea49508c52e1057d4173359b78 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-0cd3be1 [2018-11-28 12:11:57,725 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:11:57,726 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:11:57,735 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:11:57,736 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:11:57,736 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:11:57,737 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:11:57,739 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:11:57,740 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:11:57,741 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:11:57,741 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:11:57,742 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:11:57,742 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:11:57,743 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:11:57,744 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:11:57,744 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:11:57,745 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:11:57,746 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:11:57,748 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:11:57,749 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:11:57,750 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:11:57,751 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:11:57,753 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:11:57,753 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:11:57,753 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:11:57,754 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:11:57,754 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:11:57,755 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:11:57,756 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:11:57,757 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:11:57,757 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:11:57,757 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:11:57,757 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:11:57,758 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:11:57,758 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:11:57,759 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:11:57,759 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:11:57,770 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:11:57,770 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:11:57,771 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:11:57,771 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:11:57,771 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:11:57,771 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:11:57,772 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:11:57,772 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:11:57,772 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:11:57,772 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:11:57,772 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:11:57,772 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:11:57,773 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:11:57,773 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:11:57,773 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:11:57,773 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:11:57,773 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:11:57,773 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:11:57,773 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:11:57,774 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:11:57,774 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:11:57,774 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:11:57,774 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:11:57,774 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:11:57,774 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:11:57,775 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:11:57,775 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:11:57,775 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:11:57,775 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:11:57,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:11:57,775 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer 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 -> f98010979adc33ea49508c52e1057d4173359b78 [2018-11-28 12:11:57,801 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:11:57,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:11:57,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:11:57,814 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:11:57,815 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:11:57,815 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product55_false-unreach-call_false-termination.cil.c [2018-11-28 12:11:57,860 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/data/88fdd078c/ee8737ebac764c1c97f2aa7d43e44c11/FLAGee1da69f8 [2018-11-28 12:11:58,224 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:11:58,225 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/sv-benchmarks/c/product-lines/minepump_spec1_product55_false-unreach-call_false-termination.cil.c [2018-11-28 12:11:58,234 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/data/88fdd078c/ee8737ebac764c1c97f2aa7d43e44c11/FLAGee1da69f8 [2018-11-28 12:11:58,622 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/data/88fdd078c/ee8737ebac764c1c97f2aa7d43e44c11 [2018-11-28 12:11:58,624 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:11:58,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:11:58,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:11:58,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:11:58,629 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:11:58,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:11:58" (1/1) ... [2018-11-28 12:11:58,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@143c444d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:58, skipping insertion in model container [2018-11-28 12:11:58,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:11:58" (1/1) ... [2018-11-28 12:11:58,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:11:58,668 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:11:58,862 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:11:58,873 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:11:58,988 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:11:59,007 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:11:59,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59 WrapperNode [2018-11-28 12:11:59,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:11:59,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:11:59,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:11:59,008 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:11:59,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (1/1) ... [2018-11-28 12:11:59,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (1/1) ... [2018-11-28 12:11:59,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:11:59,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:11:59,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:11:59,032 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:11:59,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (1/1) ... [2018-11-28 12:11:59,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (1/1) ... [2018-11-28 12:11:59,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (1/1) ... [2018-11-28 12:11:59,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (1/1) ... [2018-11-28 12:11:59,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (1/1) ... [2018-11-28 12:11:59,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (1/1) ... [2018-11-28 12:11:59,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (1/1) ... [2018-11-28 12:11:59,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:11:59,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:11:59,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:11:59,059 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:11:59,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/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 12:11:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-28 12:11:59,097 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-28 12:11:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:11:59,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:11:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-28 12:11:59,097 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-28 12:11:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-28 12:11:59,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-28 12:11:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:11:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-28 12:11:59,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-28 12:11:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-28 12:11:59,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-28 12:11:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-28 12:11:59,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-28 12:11:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-28 12:11:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-28 12:11:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-28 12:11:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-28 12:11:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-28 12:11:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-28 12:11:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-28 12:11:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-28 12:11:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-28 12:11:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-28 12:11:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-28 12:11:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-28 12:11:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-28 12:11:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-28 12:11:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-28 12:11:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-28 12:11:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-28 12:11:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-28 12:11:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 12:11:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 12:11:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-28 12:11:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-28 12:11:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-28 12:11:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-28 12:11:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-28 12:11:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-28 12:11:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-28 12:11:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-28 12:11:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-28 12:11:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-28 12:11:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-28 12:11:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-28 12:11:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-28 12:11:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-28 12:11:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-28 12:11:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-28 12:11:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 12:11:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:11:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:11:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-28 12:11:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-28 12:11:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-28 12:11:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-28 12:11:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:11:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:11:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-28 12:11:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-28 12:11:59,513 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:11:59,513 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:11:59,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:11:59 BoogieIcfgContainer [2018-11-28 12:11:59,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:11:59,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:11:59,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:11:59,517 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:11:59,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:11:58" (1/3) ... [2018-11-28 12:11:59,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c1afc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:11:59, skipping insertion in model container [2018-11-28 12:11:59,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:59" (2/3) ... [2018-11-28 12:11:59,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c1afc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:11:59, skipping insertion in model container [2018-11-28 12:11:59,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:11:59" (3/3) ... [2018-11-28 12:11:59,520 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55_false-unreach-call_false-termination.cil.c [2018-11-28 12:11:59,527 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:11:59,533 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:11:59,544 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:11:59,566 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:11:59,566 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:11:59,566 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:11:59,566 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:11:59,566 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:11:59,567 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:11:59,567 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:11:59,567 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:11:59,567 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:11:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2018-11-28 12:11:59,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 12:11:59,589 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:59,590 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 12:11:59,592 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:59,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:59,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1471376431, now seen corresponding path program 1 times [2018-11-28 12:11:59,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:59,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:59,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:59,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:59,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:59,777 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 12:11:59,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:11:59,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:11:59,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:11:59,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:11:59,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:11:59,792 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2018-11-28 12:11:59,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:59,823 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2018-11-28 12:11:59,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:11:59,825 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-28 12:11:59,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:59,834 INFO L225 Difference]: With dead ends: 298 [2018-11-28 12:11:59,834 INFO L226 Difference]: Without dead ends: 149 [2018-11-28 12:11:59,837 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 12:11:59,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-11-28 12:11:59,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-11-28 12:11:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-28 12:11:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2018-11-28 12:11:59,877 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 46 [2018-11-28 12:11:59,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:59,877 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2018-11-28 12:11:59,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:11:59,877 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2018-11-28 12:11:59,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 12:11:59,880 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:59,880 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 12:11:59,880 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:59,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:59,881 INFO L82 PathProgramCache]: Analyzing trace with hash 758774715, now seen corresponding path program 1 times [2018-11-28 12:11:59,881 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:59,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:59,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:59,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:59,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:59,967 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 12:11:59,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:11:59,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:11:59,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:11:59,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:11:59,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:11:59,970 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand 3 states. [2018-11-28 12:11:59,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:59,992 INFO L93 Difference]: Finished difference Result 241 states and 287 transitions. [2018-11-28 12:11:59,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:11:59,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-28 12:11:59,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:59,994 INFO L225 Difference]: With dead ends: 241 [2018-11-28 12:11:59,994 INFO L226 Difference]: Without dead ends: 140 [2018-11-28 12:11:59,995 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 12:11:59,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-11-28 12:12:00,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-11-28 12:12:00,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-11-28 12:12:00,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2018-11-28 12:12:00,007 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 47 [2018-11-28 12:12:00,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:00,008 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2018-11-28 12:12:00,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:12:00,008 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2018-11-28 12:12:00,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-28 12:12:00,009 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:00,010 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 12:12:00,010 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:00,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:00,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1394019342, now seen corresponding path program 1 times [2018-11-28 12:12:00,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:00,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:00,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:00,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:00,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:00,122 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 12:12:00,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:00,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:12:00,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:12:00,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:12:00,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:12:00,124 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand 7 states. [2018-11-28 12:12:00,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:00,540 INFO L93 Difference]: Finished difference Result 422 states and 516 transitions. [2018-11-28 12:12:00,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:12:00,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-11-28 12:12:00,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:00,544 INFO L225 Difference]: With dead ends: 422 [2018-11-28 12:12:00,544 INFO L226 Difference]: Without dead ends: 306 [2018-11-28 12:12:00,546 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:12:00,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-11-28 12:12:00,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 298. [2018-11-28 12:12:00,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-11-28 12:12:00,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 364 transitions. [2018-11-28 12:12:00,578 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 364 transitions. Word has length 51 [2018-11-28 12:12:00,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:00,578 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 364 transitions. [2018-11-28 12:12:00,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:12:00,578 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 364 transitions. [2018-11-28 12:12:00,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 12:12:00,581 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:00,581 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 12:12:00,581 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:00,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:00,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1824217401, now seen corresponding path program 1 times [2018-11-28 12:12:00,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:00,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:00,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:00,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:00,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:00,673 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 12:12:00,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:00,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:12:00,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:12:00,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:12:00,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:12:00,674 INFO L87 Difference]: Start difference. First operand 298 states and 364 transitions. Second operand 6 states. [2018-11-28 12:12:00,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:00,822 INFO L93 Difference]: Finished difference Result 831 states and 1040 transitions. [2018-11-28 12:12:00,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:12:00,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-11-28 12:12:00,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:00,827 INFO L225 Difference]: With dead ends: 831 [2018-11-28 12:12:00,827 INFO L226 Difference]: Without dead ends: 557 [2018-11-28 12:12:00,830 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:12:00,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-11-28 12:12:00,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 551. [2018-11-28 12:12:00,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2018-11-28 12:12:00,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 678 transitions. [2018-11-28 12:12:00,872 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 678 transitions. Word has length 57 [2018-11-28 12:12:00,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:00,872 INFO L480 AbstractCegarLoop]: Abstraction has 551 states and 678 transitions. [2018-11-28 12:12:00,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:12:00,872 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 678 transitions. [2018-11-28 12:12:00,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-28 12:12:00,875 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:00,875 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 12:12:00,875 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:00,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:00,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1509256291, now seen corresponding path program 1 times [2018-11-28 12:12:00,876 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:00,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:00,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:00,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:00,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:00,993 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 12:12:00,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:00,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:12:00,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:12:00,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:12:00,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:12:00,994 INFO L87 Difference]: Start difference. First operand 551 states and 678 transitions. Second operand 7 states. [2018-11-28 12:12:01,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:01,403 INFO L93 Difference]: Finished difference Result 1428 states and 1879 transitions. [2018-11-28 12:12:01,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:12:01,403 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-11-28 12:12:01,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:01,408 INFO L225 Difference]: With dead ends: 1428 [2018-11-28 12:12:01,408 INFO L226 Difference]: Without dead ends: 901 [2018-11-28 12:12:01,410 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:12:01,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2018-11-28 12:12:01,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 805. [2018-11-28 12:12:01,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2018-11-28 12:12:01,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 983 transitions. [2018-11-28 12:12:01,457 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 983 transitions. Word has length 61 [2018-11-28 12:12:01,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:01,457 INFO L480 AbstractCegarLoop]: Abstraction has 805 states and 983 transitions. [2018-11-28 12:12:01,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:12:01,457 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 983 transitions. [2018-11-28 12:12:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-28 12:12:01,459 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:01,459 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, 1] [2018-11-28 12:12:01,459 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:01,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:01,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1034149815, now seen corresponding path program 1 times [2018-11-28 12:12:01,460 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:01,460 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:01,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:01,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:01,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:01,526 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 12:12:01,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:01,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:12:01,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:12:01,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:12:01,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:12:01,527 INFO L87 Difference]: Start difference. First operand 805 states and 983 transitions. Second operand 6 states. [2018-11-28 12:12:01,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:01,566 INFO L93 Difference]: Finished difference Result 1606 states and 2000 transitions. [2018-11-28 12:12:01,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:12:01,567 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-11-28 12:12:01,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:01,570 INFO L225 Difference]: With dead ends: 1606 [2018-11-28 12:12:01,570 INFO L226 Difference]: Without dead ends: 825 [2018-11-28 12:12:01,572 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:12:01,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2018-11-28 12:12:01,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2018-11-28 12:12:01,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2018-11-28 12:12:01,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1003 transitions. [2018-11-28 12:12:01,604 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1003 transitions. Word has length 88 [2018-11-28 12:12:01,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:01,605 INFO L480 AbstractCegarLoop]: Abstraction has 825 states and 1003 transitions. [2018-11-28 12:12:01,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:12:01,605 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1003 transitions. [2018-11-28 12:12:01,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-28 12:12:01,606 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:01,606 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, 1] [2018-11-28 12:12:01,607 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:01,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:01,607 INFO L82 PathProgramCache]: Analyzing trace with hash -759390201, now seen corresponding path program 1 times [2018-11-28 12:12:01,607 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:01,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:01,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:01,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:01,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:01,692 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 12:12:01,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:01,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:12:01,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:12:01,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:12:01,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:12:01,694 INFO L87 Difference]: Start difference. First operand 825 states and 1003 transitions. Second operand 8 states. [2018-11-28 12:12:01,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:01,732 INFO L93 Difference]: Finished difference Result 1654 states and 2086 transitions. [2018-11-28 12:12:01,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:12:01,733 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2018-11-28 12:12:01,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:01,736 INFO L225 Difference]: With dead ends: 1654 [2018-11-28 12:12:01,736 INFO L226 Difference]: Without dead ends: 853 [2018-11-28 12:12:01,738 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:12:01,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2018-11-28 12:12:01,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 841. [2018-11-28 12:12:01,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2018-11-28 12:12:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1019 transitions. [2018-11-28 12:12:01,767 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1019 transitions. Word has length 88 [2018-11-28 12:12:01,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:01,768 INFO L480 AbstractCegarLoop]: Abstraction has 841 states and 1019 transitions. [2018-11-28 12:12:01,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:12:01,768 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1019 transitions. [2018-11-28 12:12:01,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-28 12:12:01,769 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:01,770 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, 1] [2018-11-28 12:12:01,770 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:01,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:01,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1190910054, now seen corresponding path program 1 times [2018-11-28 12:12:01,770 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:01,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:01,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:01,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:01,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:12:01,840 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 12:12:01,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:12:01,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:12:01,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:12:01,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:12:01,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:12:01,841 INFO L87 Difference]: Start difference. First operand 841 states and 1019 transitions. Second operand 4 states. [2018-11-28 12:12:02,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:12:02,048 INFO L93 Difference]: Finished difference Result 2723 states and 3462 transitions. [2018-11-28 12:12:02,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:12:02,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2018-11-28 12:12:02,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:12:02,055 INFO L225 Difference]: With dead ends: 2723 [2018-11-28 12:12:02,055 INFO L226 Difference]: Without dead ends: 1906 [2018-11-28 12:12:02,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:12:02,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2018-11-28 12:12:02,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1875. [2018-11-28 12:12:02,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1875 states. [2018-11-28 12:12:02,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2331 transitions. [2018-11-28 12:12:02,129 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2331 transitions. Word has length 88 [2018-11-28 12:12:02,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:12:02,130 INFO L480 AbstractCegarLoop]: Abstraction has 1875 states and 2331 transitions. [2018-11-28 12:12:02,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:12:02,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2331 transitions. [2018-11-28 12:12:02,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-28 12:12:02,132 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:12:02,132 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, 1, 1, 1, 1, 1] [2018-11-28 12:12:02,132 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:12:02,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:12:02,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1201948192, now seen corresponding path program 1 times [2018-11-28 12:12:02,132 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:12:02,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:12:02,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:02,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:12:02,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:12:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:12:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:12:02,214 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:12:02,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:12:02 BoogieIcfgContainer [2018-11-28 12:12:02,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:12:02,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:12:02,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:12:02,305 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:12:02,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:11:59" (3/4) ... [2018-11-28 12:12:02,307 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 12:12:02,396 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5b2ab54a-0285-4ddc-a15d-068fd82fc32b/bin-2019/uautomizer/witness.graphml [2018-11-28 12:12:02,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:12:02,397 INFO L168 Benchmark]: Toolchain (without parser) took 3772.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 949.5 MB in the beginning and 971.7 MB in the end (delta: -22.2 MB). Peak memory consumption was 129.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:02,398 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:12:02,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -117.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:02,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.78 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 12:12:02,399 INFO L168 Benchmark]: Boogie Preprocessor took 26.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:02,399 INFO L168 Benchmark]: RCFGBuilder took 455.48 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:02,399 INFO L168 Benchmark]: TraceAbstraction took 2789.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 74.4 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.6 MB). Peak memory consumption was 85.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:02,399 INFO L168 Benchmark]: Witness Printer took 92.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 971.7 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:12:02,402 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 381.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -117.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.78 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. * Boogie Preprocessor took 26.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 455.48 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2789.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 74.4 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.6 MB). Peak memory consumption was 85.0 MB. Max. memory is 11.5 GB. * Witness Printer took 92.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 971.7 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 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: [L159] int pumpRunning = 0; [L160] int systemActive = 1; [L399] int waterLevel = 1; [L400] int methaneLevelCritical = 0; [L511] int cleanupTimeShifts = 4; [L802] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L584] int retValue_acc ; [L585] 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] [L589] 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] [L590] 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] [L591] 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] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] 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] [L591] 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] [L591] tmp = valid_product() [L593] 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] [L595] 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] [L596] 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] [L578] 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] [L84] int splverifierCounter ; [L85] int tmp ; [L86] int tmp___0 ; [L87] int tmp___1 ; [L88] int tmp___2 ; [L91] 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] [L93] 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] [L95] 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] [L101] tmp = __VERIFIER_nondet_int() [L103] 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] [L105] 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] [L417] COND TRUE waterLevel < 2 [L418] 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] [L105] 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] [L111] tmp___0 = __VERIFIER_nondet_int() [L113] 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] [L115] 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] [L429] COND FALSE !(\read(methaneLevelCritical)) [L432] 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] [L115] 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] [L121] tmp___2 = __VERIFIER_nondet_int() [L123] 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] [L138] 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] [L167] 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] [L174] 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] [L176] 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] [L248] 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] [L251] 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] [L266] CALL processEnvironment__wrappee__lowWaterSensor() 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] [L222] 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] [L225] 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] [L240] 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] [L196] 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] [L199] 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] [L201] 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] [L345] int retValue_acc ; [L346] int tmp ; [L347] 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] [L351] 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] [L479] 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] [L482] COND FALSE !(waterLevel < 2) [L486] retValue_acc = 0 [L487] 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] [L351] 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] [L351] tmp = isHighWaterSensorDry() [L353] COND FALSE !(\read(tmp)) [L356] 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] [L358] retValue_acc = tmp___0 [L359] 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] [L201] 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] [L201] tmp = isHighWaterLevel() [L203] 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] [L205] 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] [L276] 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] [L205] 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] [L240] 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] [L266] RET processEnvironment__wrappee__lowWaterSensor() 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] [L176] 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] [L182] 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] [L608] int tmp ; [L609] 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] [L613] 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] [L438] int retValue_acc ; [L441] retValue_acc = methaneLevelCritical [L442] 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] [L613] 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] [L613] tmp = isMethaneLevelCritical() [L615] 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] [L617] 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] [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] 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] [L617] 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] [L617] tmp___0 = isPumpRunning() [L619] 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] [L621] 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] [L506] __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 30 procedures, 162 locations, 1 error locations. UNSAFE Result, 2.7s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1523 SDtfs, 826 SDslu, 3647 SDs, 0 SdLazy, 1000 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1875occurred 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: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 153 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 618 NumberOfCodeBlocks, 618 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 518 ConstructedInterpolants, 0 QuantifiedInterpolants, 59196 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...