./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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/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_38d28df8-7015-4215-9d0c-bfa99a6fd389/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/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 0.1.23-635dfa2 [2018-12-09 05:14:05,858 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 05:14:05,859 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 05:14:05,866 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 05:14:05,866 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 05:14:05,867 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 05:14:05,868 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 05:14:05,868 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 05:14:05,869 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 05:14:05,869 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 05:14:05,870 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 05:14:05,870 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 05:14:05,870 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 05:14:05,871 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 05:14:05,871 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 05:14:05,872 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 05:14:05,872 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 05:14:05,873 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 05:14:05,874 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 05:14:05,874 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 05:14:05,875 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 05:14:05,876 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 05:14:05,877 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 05:14:05,878 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 05:14:05,878 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 05:14:05,878 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 05:14:05,879 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 05:14:05,879 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 05:14:05,880 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 05:14:05,880 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 05:14:05,880 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 05:14:05,880 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 05:14:05,881 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 05:14:05,881 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 05:14:05,881 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 05:14:05,881 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 05:14:05,882 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 05:14:05,891 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 05:14:05,891 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 05:14:05,891 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 05:14:05,892 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 05:14:05,892 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 05:14:05,892 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 05:14:05,892 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 05:14:05,893 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 05:14:05,893 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 05:14:05,893 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 05:14:05,893 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 05:14:05,893 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 05:14:05,893 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 05:14:05,894 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 05:14:05,894 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 05:14:05,894 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 05:14:05,894 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 05:14:05,894 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 05:14:05,894 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 05:14:05,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 05:14:05,895 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 05:14:05,895 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 05:14:05,895 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 05:14:05,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 05:14:05,895 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 05:14:05,895 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 05:14:05,896 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 05:14:05,896 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 05:14:05,896 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 05:14:05,896 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 05:14:05,896 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_38d28df8-7015-4215-9d0c-bfa99a6fd389/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 [2018-12-09 05:14:05,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 05:14:05,926 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 05:14:05,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 05:14:05,929 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 05:14:05,929 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 05:14:05,930 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product55_false-unreach-call_false-termination.cil.c [2018-12-09 05:14:05,964 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/bin-2019/uautomizer/data/7cf7b534e/91fb47ac38ee436c86d7e3d54cf3644d/FLAGb8ec98523 [2018-12-09 05:14:06,367 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 05:14:06,367 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/sv-benchmarks/c/product-lines/minepump_spec1_product55_false-unreach-call_false-termination.cil.c [2018-12-09 05:14:06,374 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/bin-2019/uautomizer/data/7cf7b534e/91fb47ac38ee436c86d7e3d54cf3644d/FLAGb8ec98523 [2018-12-09 05:14:06,382 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/bin-2019/uautomizer/data/7cf7b534e/91fb47ac38ee436c86d7e3d54cf3644d [2018-12-09 05:14:06,384 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 05:14:06,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 05:14:06,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 05:14:06,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 05:14:06,387 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 05:14:06,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06, skipping insertion in model container [2018-12-09 05:14:06,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 05:14:06,415 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 05:14:06,565 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:14:06,617 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 05:14:06,660 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:14:06,676 INFO L195 MainTranslator]: Completed translation [2018-12-09 05:14:06,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06 WrapperNode [2018-12-09 05:14:06,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 05:14:06,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 05:14:06,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 05:14:06,677 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 05:14:06,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 05:14:06,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 05:14:06,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 05:14:06,697 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 05:14:06,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (1/1) ... [2018-12-09 05:14:06,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 05:14:06,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 05:14:06,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 05:14:06,718 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 05:14:06,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/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 [2018-12-09 05:14:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 05:14:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 05:14:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 05:14:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 05:14:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 05:14:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 05:14:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 05:14:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 05:14:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 05:14:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 05:14:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 05:14:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 05:14:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 05:14:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 05:14:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 05:14:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 05:14:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 05:14:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 05:14:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 05:14:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 05:14:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 05:14:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 05:14:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 05:14:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 05:14:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 05:14:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 05:14:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 05:14:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 05:14:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 05:14:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 05:14:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 05:14:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 05:14:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 05:14:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 05:14:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 05:14:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 05:14:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 05:14:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 05:14:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 05:14:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 05:14:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 05:14:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 05:14:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 05:14:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 05:14:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 05:14:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 05:14:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 05:14:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 05:14:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 05:14:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 05:14:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 05:14:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 05:14:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 05:14:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 05:14:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 05:14:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 05:14:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 05:14:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 05:14:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 05:14:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 05:14:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 05:14:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 05:14:07,041 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 05:14:07,041 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 05:14:07,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:14:07 BoogieIcfgContainer [2018-12-09 05:14:07,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 05:14:07,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 05:14:07,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 05:14:07,044 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 05:14:07,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:14:06" (1/3) ... [2018-12-09 05:14:07,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dff91b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:14:07, skipping insertion in model container [2018-12-09 05:14:07,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:06" (2/3) ... [2018-12-09 05:14:07,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dff91b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:14:07, skipping insertion in model container [2018-12-09 05:14:07,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:14:07" (3/3) ... [2018-12-09 05:14:07,046 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55_false-unreach-call_false-termination.cil.c [2018-12-09 05:14:07,052 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 05:14:07,057 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 05:14:07,066 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 05:14:07,084 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 05:14:07,084 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 05:14:07,084 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 05:14:07,084 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 05:14:07,085 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 05:14:07,085 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 05:14:07,085 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 05:14:07,085 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 05:14:07,085 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 05:14:07,096 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2018-12-09 05:14:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 05:14:07,101 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:14:07,102 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] [2018-12-09 05:14:07,103 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:14:07,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:14:07,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1471376431, now seen corresponding path program 1 times [2018-12-09 05:14:07,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:14:07,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:14:07,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:07,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:14:07,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:14:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:14:07,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:14:07,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 05:14:07,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 05:14:07,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 05:14:07,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 05:14:07,260 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2018-12-09 05:14:07,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:14:07,285 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2018-12-09 05:14:07,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 05:14:07,286 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 05:14:07,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:14:07,293 INFO L225 Difference]: With dead ends: 298 [2018-12-09 05:14:07,293 INFO L226 Difference]: Without dead ends: 149 [2018-12-09 05:14:07,295 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 [2018-12-09 05:14:07,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-12-09 05:14:07,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-12-09 05:14:07,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-12-09 05:14:07,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2018-12-09 05:14:07,326 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 46 [2018-12-09 05:14:07,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:14:07,326 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2018-12-09 05:14:07,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 05:14:07,326 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2018-12-09 05:14:07,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 05:14:07,328 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:14:07,328 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] [2018-12-09 05:14:07,328 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:14:07,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:14:07,328 INFO L82 PathProgramCache]: Analyzing trace with hash 758774715, now seen corresponding path program 1 times [2018-12-09 05:14:07,328 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:14:07,328 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:14:07,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:07,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:14:07,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:14:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:14:07,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:14:07,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 05:14:07,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 05:14:07,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 05:14:07,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 05:14:07,381 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand 3 states. [2018-12-09 05:14:07,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:14:07,395 INFO L93 Difference]: Finished difference Result 241 states and 287 transitions. [2018-12-09 05:14:07,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 05:14:07,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 05:14:07,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:14:07,396 INFO L225 Difference]: With dead ends: 241 [2018-12-09 05:14:07,396 INFO L226 Difference]: Without dead ends: 140 [2018-12-09 05:14:07,397 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 [2018-12-09 05:14:07,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-12-09 05:14:07,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-12-09 05:14:07,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-12-09 05:14:07,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2018-12-09 05:14:07,405 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 47 [2018-12-09 05:14:07,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:14:07,405 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2018-12-09 05:14:07,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 05:14:07,406 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2018-12-09 05:14:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 05:14:07,406 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:14:07,407 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] [2018-12-09 05:14:07,407 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:14:07,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:14:07,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1394019342, now seen corresponding path program 1 times [2018-12-09 05:14:07,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:14:07,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:14:07,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:07,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:14:07,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:14:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:14:07,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:14:07,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 05:14:07,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 05:14:07,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 05:14:07,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 05:14:07,485 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand 7 states. [2018-12-09 05:14:07,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:14:07,758 INFO L93 Difference]: Finished difference Result 422 states and 516 transitions. [2018-12-09 05:14:07,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 05:14:07,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 05:14:07,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:14:07,760 INFO L225 Difference]: With dead ends: 422 [2018-12-09 05:14:07,760 INFO L226 Difference]: Without dead ends: 306 [2018-12-09 05:14:07,761 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 [2018-12-09 05:14:07,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-12-09 05:14:07,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 298. [2018-12-09 05:14:07,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-12-09 05:14:07,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 364 transitions. [2018-12-09 05:14:07,782 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 364 transitions. Word has length 51 [2018-12-09 05:14:07,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:14:07,782 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 364 transitions. [2018-12-09 05:14:07,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 05:14:07,782 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 364 transitions. [2018-12-09 05:14:07,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 05:14:07,784 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:14:07,784 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] [2018-12-09 05:14:07,784 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:14:07,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:14:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1824217401, now seen corresponding path program 1 times [2018-12-09 05:14:07,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:14:07,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:14:07,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:07,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:14:07,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:14:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:14:07,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:14:07,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 05:14:07,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 05:14:07,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 05:14:07,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 05:14:07,847 INFO L87 Difference]: Start difference. First operand 298 states and 364 transitions. Second operand 6 states. [2018-12-09 05:14:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:14:07,974 INFO L93 Difference]: Finished difference Result 831 states and 1040 transitions. [2018-12-09 05:14:07,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 05:14:07,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-09 05:14:07,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:14:07,977 INFO L225 Difference]: With dead ends: 831 [2018-12-09 05:14:07,977 INFO L226 Difference]: Without dead ends: 557 [2018-12-09 05:14:07,979 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 [2018-12-09 05:14:07,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-12-09 05:14:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 551. [2018-12-09 05:14:08,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2018-12-09 05:14:08,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 678 transitions. [2018-12-09 05:14:08,012 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 678 transitions. Word has length 57 [2018-12-09 05:14:08,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:14:08,012 INFO L480 AbstractCegarLoop]: Abstraction has 551 states and 678 transitions. [2018-12-09 05:14:08,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 05:14:08,012 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 678 transitions. [2018-12-09 05:14:08,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 05:14:08,015 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:14:08,015 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] [2018-12-09 05:14:08,015 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:14:08,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:14:08,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1509256291, now seen corresponding path program 1 times [2018-12-09 05:14:08,015 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:14:08,016 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:14:08,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:08,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:14:08,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:14:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:14:08,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:14:08,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 05:14:08,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 05:14:08,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 05:14:08,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 05:14:08,094 INFO L87 Difference]: Start difference. First operand 551 states and 678 transitions. Second operand 7 states. [2018-12-09 05:14:08,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:14:08,490 INFO L93 Difference]: Finished difference Result 1428 states and 1879 transitions. [2018-12-09 05:14:08,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 05:14:08,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-12-09 05:14:08,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:14:08,494 INFO L225 Difference]: With dead ends: 1428 [2018-12-09 05:14:08,494 INFO L226 Difference]: Without dead ends: 901 [2018-12-09 05:14:08,495 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 [2018-12-09 05:14:08,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2018-12-09 05:14:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 805. [2018-12-09 05:14:08,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2018-12-09 05:14:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 983 transitions. [2018-12-09 05:14:08,538 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 983 transitions. Word has length 61 [2018-12-09 05:14:08,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:14:08,538 INFO L480 AbstractCegarLoop]: Abstraction has 805 states and 983 transitions. [2018-12-09 05:14:08,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 05:14:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 983 transitions. [2018-12-09 05:14:08,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 05:14:08,539 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:14:08,539 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] [2018-12-09 05:14:08,540 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:14:08,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:14:08,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1034149815, now seen corresponding path program 1 times [2018-12-09 05:14:08,540 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:14:08,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:14:08,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:08,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:14:08,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:14:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:14:08,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:14:08,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 05:14:08,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 05:14:08,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 05:14:08,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 05:14:08,599 INFO L87 Difference]: Start difference. First operand 805 states and 983 transitions. Second operand 6 states. [2018-12-09 05:14:08,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:14:08,651 INFO L93 Difference]: Finished difference Result 1606 states and 2000 transitions. [2018-12-09 05:14:08,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 05:14:08,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-12-09 05:14:08,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:14:08,655 INFO L225 Difference]: With dead ends: 1606 [2018-12-09 05:14:08,655 INFO L226 Difference]: Without dead ends: 825 [2018-12-09 05:14:08,657 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 [2018-12-09 05:14:08,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2018-12-09 05:14:08,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2018-12-09 05:14:08,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2018-12-09 05:14:08,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1003 transitions. [2018-12-09 05:14:08,699 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1003 transitions. Word has length 88 [2018-12-09 05:14:08,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:14:08,699 INFO L480 AbstractCegarLoop]: Abstraction has 825 states and 1003 transitions. [2018-12-09 05:14:08,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 05:14:08,700 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1003 transitions. [2018-12-09 05:14:08,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 05:14:08,701 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:14:08,701 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] [2018-12-09 05:14:08,702 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:14:08,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:14:08,702 INFO L82 PathProgramCache]: Analyzing trace with hash -759390201, now seen corresponding path program 1 times [2018-12-09 05:14:08,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:14:08,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:14:08,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:08,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:14:08,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:14:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:14:08,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:14:08,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 05:14:08,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 05:14:08,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 05:14:08,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 05:14:08,768 INFO L87 Difference]: Start difference. First operand 825 states and 1003 transitions. Second operand 8 states. [2018-12-09 05:14:08,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:14:08,801 INFO L93 Difference]: Finished difference Result 1654 states and 2086 transitions. [2018-12-09 05:14:08,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 05:14:08,802 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2018-12-09 05:14:08,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:14:08,804 INFO L225 Difference]: With dead ends: 1654 [2018-12-09 05:14:08,804 INFO L226 Difference]: Without dead ends: 853 [2018-12-09 05:14:08,806 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 [2018-12-09 05:14:08,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2018-12-09 05:14:08,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 841. [2018-12-09 05:14:08,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2018-12-09 05:14:08,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1019 transitions. [2018-12-09 05:14:08,830 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1019 transitions. Word has length 88 [2018-12-09 05:14:08,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:14:08,830 INFO L480 AbstractCegarLoop]: Abstraction has 841 states and 1019 transitions. [2018-12-09 05:14:08,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 05:14:08,830 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1019 transitions. [2018-12-09 05:14:08,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 05:14:08,831 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:14:08,831 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] [2018-12-09 05:14:08,831 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:14:08,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:14:08,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1190910054, now seen corresponding path program 1 times [2018-12-09 05:14:08,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:14:08,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:14:08,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:08,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:14:08,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:14:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:14:08,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:14:08,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 05:14:08,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 05:14:08,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 05:14:08,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 05:14:08,871 INFO L87 Difference]: Start difference. First operand 841 states and 1019 transitions. Second operand 4 states. [2018-12-09 05:14:09,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:14:09,061 INFO L93 Difference]: Finished difference Result 2723 states and 3462 transitions. [2018-12-09 05:14:09,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 05:14:09,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2018-12-09 05:14:09,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:14:09,066 INFO L225 Difference]: With dead ends: 2723 [2018-12-09 05:14:09,066 INFO L226 Difference]: Without dead ends: 1906 [2018-12-09 05:14:09,067 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 [2018-12-09 05:14:09,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2018-12-09 05:14:09,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1875. [2018-12-09 05:14:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1875 states. [2018-12-09 05:14:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2331 transitions. [2018-12-09 05:14:09,125 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2331 transitions. Word has length 88 [2018-12-09 05:14:09,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:14:09,125 INFO L480 AbstractCegarLoop]: Abstraction has 1875 states and 2331 transitions. [2018-12-09 05:14:09,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 05:14:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2331 transitions. [2018-12-09 05:14:09,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 05:14:09,126 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:14:09,126 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] [2018-12-09 05:14:09,127 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:14:09,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:14:09,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1201948192, now seen corresponding path program 1 times [2018-12-09 05:14:09,127 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:14:09,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:14:09,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:09,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:14:09,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:14:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:14:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:14:09,201 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 05:14:09,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:14:09 BoogieIcfgContainer [2018-12-09 05:14:09,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 05:14:09,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 05:14:09,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 05:14:09,296 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 05:14:09,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:14:07" (3/4) ... [2018-12-09 05:14:09,298 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 05:14:09,380 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_38d28df8-7015-4215-9d0c-bfa99a6fd389/bin-2019/uautomizer/witness.graphml [2018-12-09 05:14:09,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 05:14:09,381 INFO L168 Benchmark]: Toolchain (without parser) took 2997.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.1 MB). Free memory was 950.6 MB in the beginning and 833.8 MB in the end (delta: 116.8 MB). Peak memory consumption was 314.0 MB. Max. memory is 11.5 GB. [2018-12-09 05:14:09,382 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-12-09 05:14:09,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -129.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-09 05:14:09,382 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.24 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. [2018-12-09 05:14:09,382 INFO L168 Benchmark]: Boogie Preprocessor took 20.72 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: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2018-12-09 05:14:09,383 INFO L168 Benchmark]: RCFGBuilder took 323.55 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: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. [2018-12-09 05:14:09,383 INFO L168 Benchmark]: TraceAbstraction took 2253.33 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 103.3 MB). Free memory was 1.0 GB in the beginning and 864.2 MB in the end (delta: 161.2 MB). Peak memory consumption was 264.5 MB. Max. memory is 11.5 GB. [2018-12-09 05:14:09,383 INFO L168 Benchmark]: Witness Printer took 85.14 ms. Allocated memory is still 1.2 GB. Free memory was 864.2 MB in the beginning and 833.8 MB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-09 05:14:09,384 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 291.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -129.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.24 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 20.72 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: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 323.55 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: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2253.33 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 103.3 MB). Free memory was 1.0 GB in the beginning and 864.2 MB in the end (delta: 161.2 MB). Peak memory consumption was 264.5 MB. Max. memory is 11.5 GB. * Witness Printer took 85.14 ms. Allocated memory is still 1.2 GB. Free memory was 864.2 MB in the beginning and 833.8 MB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 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, 2.2s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1521 SDtfs, 826 SDslu, 3640 SDs, 0 SdLazy, 1000 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s 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, 0.3s 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...