./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product54_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_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product54_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72d06b83689108b06d89f4f95641f29fdbb51231 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-03 06:38:21,885 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 06:38:21,886 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 06:38:21,892 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 06:38:21,892 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 06:38:21,892 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 06:38:21,893 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 06:38:21,894 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 06:38:21,895 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 06:38:21,895 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 06:38:21,896 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 06:38:21,896 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 06:38:21,896 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 06:38:21,897 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 06:38:21,897 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 06:38:21,898 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 06:38:21,898 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 06:38:21,899 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 06:38:21,900 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 06:38:21,901 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 06:38:21,901 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 06:38:21,902 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 06:38:21,903 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 06:38:21,903 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 06:38:21,903 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 06:38:21,904 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 06:38:21,904 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 06:38:21,905 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 06:38:21,905 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 06:38:21,906 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 06:38:21,906 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 06:38:21,906 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 06:38:21,906 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 06:38:21,906 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 06:38:21,907 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 06:38:21,907 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 06:38:21,907 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 06:38:21,914 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 06:38:21,915 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 06:38:21,915 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 06:38:21,915 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 06:38:21,915 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 06:38:21,915 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 06:38:21,915 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 06:38:21,915 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 06:38:21,916 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 06:38:21,916 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 06:38:21,916 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 06:38:21,916 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 06:38:21,916 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 06:38:21,916 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 06:38:21,916 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 06:38:21,916 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 06:38:21,916 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 06:38:21,916 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 06:38:21,917 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 06:38:21,917 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 06:38:21,917 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 06:38:21,917 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 06:38:21,917 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 06:38:21,917 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 06:38:21,917 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 06:38:21,917 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 06:38:21,917 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 06:38:21,917 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 06:38:21,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 06:38:21,917 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 06:38:21,918 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 06:38:21,918 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 06:38:21,918 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 06:38:21,918 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 06:38:21,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 06:38:21,918 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 06:38:21,918 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan 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 -> Taipan 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 -> 72d06b83689108b06d89f4f95641f29fdbb51231 [2018-12-03 06:38:21,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 06:38:21,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 06:38:21,943 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 06:38:21,944 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 06:38:21,944 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 06:38:21,945 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product54_false-unreach-call_false-termination.cil.c [2018-12-03 06:38:21,979 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/data/778930c83/ac2e84886f084b31812e666b813c9c95/FLAG25aba13a0 [2018-12-03 06:38:22,474 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 06:38:22,475 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/sv-benchmarks/c/product-lines/minepump_spec1_product54_false-unreach-call_false-termination.cil.c [2018-12-03 06:38:22,481 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/data/778930c83/ac2e84886f084b31812e666b813c9c95/FLAG25aba13a0 [2018-12-03 06:38:22,489 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/data/778930c83/ac2e84886f084b31812e666b813c9c95 [2018-12-03 06:38:22,491 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 06:38:22,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 06:38:22,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 06:38:22,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 06:38:22,494 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 06:38:22,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c8a763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22, skipping insertion in model container [2018-12-03 06:38:22,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 06:38:22,526 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 06:38:22,687 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:38:22,694 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 06:38:22,786 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:38:22,805 INFO L195 MainTranslator]: Completed translation [2018-12-03 06:38:22,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22 WrapperNode [2018-12-03 06:38:22,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 06:38:22,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 06:38:22,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 06:38:22,806 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 06:38:22,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 06:38:22,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 06:38:22,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 06:38:22,836 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 06:38:22,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (1/1) ... [2018-12-03 06:38:22,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 06:38:22,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 06:38:22,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 06:38:22,868 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 06:38:22,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/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 [2018-12-03 06:38:22,909 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-03 06:38:22,910 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-03 06:38:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 06:38:22,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 06:38:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-03 06:38:22,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-03 06:38:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 06:38:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-03 06:38:22,910 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-03 06:38:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-03 06:38:22,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-03 06:38:22,911 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-03 06:38:22,911 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-03 06:38:22,911 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-03 06:38:22,911 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-03 06:38:22,911 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-03 06:38:22,911 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-03 06:38:22,911 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-03 06:38:22,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-03 06:38:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-03 06:38:22,912 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-03 06:38:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-03 06:38:22,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-03 06:38:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-03 06:38:22,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-03 06:38:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-03 06:38:22,912 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-03 06:38:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-03 06:38:22,912 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-03 06:38:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-03 06:38:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-03 06:38:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 06:38:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 06:38:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-03 06:38:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-03 06:38:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-03 06:38:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-03 06:38:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-03 06:38:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-03 06:38:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-03 06:38:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-03 06:38:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-03 06:38:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-03 06:38:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-03 06:38:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-03 06:38:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-03 06:38:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-03 06:38:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-03 06:38:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-03 06:38:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-03 06:38:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-03 06:38:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 06:38:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 06:38:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 06:38:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-03 06:38:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-03 06:38:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-03 06:38:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-03 06:38:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 06:38:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 06:38:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-03 06:38:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-03 06:38:23,237 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 06:38:23,237 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 06:38:23,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:38:23 BoogieIcfgContainer [2018-12-03 06:38:23,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 06:38:23,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 06:38:23,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 06:38:23,239 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 06:38:23,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 06:38:22" (1/3) ... [2018-12-03 06:38:23,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248d52e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:38:23, skipping insertion in model container [2018-12-03 06:38:23,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:38:22" (2/3) ... [2018-12-03 06:38:23,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248d52e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:38:23, skipping insertion in model container [2018-12-03 06:38:23,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:38:23" (3/3) ... [2018-12-03 06:38:23,242 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product54_false-unreach-call_false-termination.cil.c [2018-12-03 06:38:23,247 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 06:38:23,252 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 06:38:23,262 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 06:38:23,280 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 06:38:23,280 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 06:38:23,281 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 06:38:23,281 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 06:38:23,281 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 06:38:23,281 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 06:38:23,281 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 06:38:23,281 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 06:38:23,293 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2018-12-03 06:38:23,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-03 06:38:23,298 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:38:23,298 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] [2018-12-03 06:38:23,300 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:38:23,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:38:23,303 INFO L82 PathProgramCache]: Analyzing trace with hash 431940116, now seen corresponding path program 1 times [2018-12-03 06:38:23,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:38:23,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:23,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:38:23,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:23,332 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:38:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:38:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:38:23,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:38:23,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 06:38:23,440 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:38:23,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 06:38:23,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 06:38:23,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 06:38:23,452 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2018-12-03 06:38:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:38:23,476 INFO L93 Difference]: Finished difference Result 294 states and 365 transitions. [2018-12-03 06:38:23,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 06:38:23,477 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-03 06:38:23,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:38:23,483 INFO L225 Difference]: With dead ends: 294 [2018-12-03 06:38:23,483 INFO L226 Difference]: Without dead ends: 147 [2018-12-03 06:38:23,485 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 [2018-12-03 06:38:23,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-12-03 06:38:23,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-12-03 06:38:23,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-12-03 06:38:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 174 transitions. [2018-12-03 06:38:23,517 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 174 transitions. Word has length 46 [2018-12-03 06:38:23,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:38:23,517 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 174 transitions. [2018-12-03 06:38:23,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 06:38:23,518 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 174 transitions. [2018-12-03 06:38:23,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-03 06:38:23,520 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:38:23,520 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] [2018-12-03 06:38:23,520 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:38:23,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:38:23,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1024513216, now seen corresponding path program 1 times [2018-12-03 06:38:23,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:38:23,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:23,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:38:23,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:23,521 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:38:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:38:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:38:23,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:38:23,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 06:38:23,599 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:38:23,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 06:38:23,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 06:38:23,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 06:38:23,601 INFO L87 Difference]: Start difference. First operand 147 states and 174 transitions. Second operand 3 states. [2018-12-03 06:38:23,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:38:23,618 INFO L93 Difference]: Finished difference Result 239 states and 283 transitions. [2018-12-03 06:38:23,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 06:38:23,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-03 06:38:23,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:38:23,620 INFO L225 Difference]: With dead ends: 239 [2018-12-03 06:38:23,620 INFO L226 Difference]: Without dead ends: 138 [2018-12-03 06:38:23,621 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 [2018-12-03 06:38:23,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-12-03 06:38:23,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-12-03 06:38:23,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-12-03 06:38:23,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2018-12-03 06:38:23,629 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 47 [2018-12-03 06:38:23,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:38:23,629 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2018-12-03 06:38:23,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 06:38:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2018-12-03 06:38:23,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-03 06:38:23,630 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:38:23,631 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:38:23,631 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:38:23,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:38:23,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1940246490, now seen corresponding path program 1 times [2018-12-03 06:38:23,631 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:38:23,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:23,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:38:23,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:23,632 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:38:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:38:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:38:23,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:38:23,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 06:38:23,698 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:38:23,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 06:38:23,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 06:38:23,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 06:38:23,699 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 3 states. [2018-12-03 06:38:23,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:38:23,716 INFO L93 Difference]: Finished difference Result 252 states and 301 transitions. [2018-12-03 06:38:23,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 06:38:23,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-03 06:38:23,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:38:23,718 INFO L225 Difference]: With dead ends: 252 [2018-12-03 06:38:23,719 INFO L226 Difference]: Without dead ends: 138 [2018-12-03 06:38:23,720 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 06:38:23,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-12-03 06:38:23,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-12-03 06:38:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-12-03 06:38:23,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2018-12-03 06:38:23,732 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 52 [2018-12-03 06:38:23,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:38:23,732 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2018-12-03 06:38:23,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 06:38:23,732 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2018-12-03 06:38:23,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-03 06:38:23,735 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:38:23,735 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] [2018-12-03 06:38:23,735 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:38:23,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:38:23,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1264706383, now seen corresponding path program 1 times [2018-12-03 06:38:23,736 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:38:23,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:23,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:38:23,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:23,737 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:38:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:38:23,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:38:23,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:38:23,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 06:38:23,813 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:38:23,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 06:38:23,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 06:38:23,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 06:38:23,814 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand 5 states. [2018-12-03 06:38:24,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:38:24,145 INFO L93 Difference]: Finished difference Result 359 states and 435 transitions. [2018-12-03 06:38:24,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 06:38:24,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-12-03 06:38:24,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:38:24,147 INFO L225 Difference]: With dead ends: 359 [2018-12-03 06:38:24,148 INFO L226 Difference]: Without dead ends: 245 [2018-12-03 06:38:24,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-03 06:38:24,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-12-03 06:38:24,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 226. [2018-12-03 06:38:24,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-12-03 06:38:24,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 256 transitions. [2018-12-03 06:38:24,172 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 256 transitions. Word has length 70 [2018-12-03 06:38:24,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:38:24,172 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 256 transitions. [2018-12-03 06:38:24,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 06:38:24,172 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 256 transitions. [2018-12-03 06:38:24,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-03 06:38:24,174 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:38:24,174 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] [2018-12-03 06:38:24,174 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:38:24,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:38:24,174 INFO L82 PathProgramCache]: Analyzing trace with hash 265955111, now seen corresponding path program 1 times [2018-12-03 06:38:24,174 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:38:24,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:24,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:38:24,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:24,176 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:38:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:38:24,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:38:24,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:38:24,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 06:38:24,231 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:38:24,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 06:38:24,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 06:38:24,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 06:38:24,232 INFO L87 Difference]: Start difference. First operand 226 states and 256 transitions. Second operand 6 states. [2018-12-03 06:38:24,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:38:24,372 INFO L93 Difference]: Finished difference Result 615 states and 718 transitions. [2018-12-03 06:38:24,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 06:38:24,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-12-03 06:38:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:38:24,375 INFO L225 Difference]: With dead ends: 615 [2018-12-03 06:38:24,375 INFO L226 Difference]: Without dead ends: 413 [2018-12-03 06:38:24,375 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 [2018-12-03 06:38:24,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-12-03 06:38:24,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 407. [2018-12-03 06:38:24,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2018-12-03 06:38:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 462 transitions. [2018-12-03 06:38:24,399 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 462 transitions. Word has length 84 [2018-12-03 06:38:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:38:24,399 INFO L480 AbstractCegarLoop]: Abstraction has 407 states and 462 transitions. [2018-12-03 06:38:24,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 06:38:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 462 transitions. [2018-12-03 06:38:24,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-03 06:38:24,400 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:38:24,400 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] [2018-12-03 06:38:24,400 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:38:24,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:38:24,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1792693245, now seen corresponding path program 1 times [2018-12-03 06:38:24,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:38:24,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:24,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:38:24,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:24,402 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:38:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:38:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:38:24,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:38:24,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 06:38:24,467 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:38:24,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 06:38:24,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 06:38:24,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:38:24,468 INFO L87 Difference]: Start difference. First operand 407 states and 462 transitions. Second operand 7 states. [2018-12-03 06:38:24,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:38:24,780 INFO L93 Difference]: Finished difference Result 442 states and 516 transitions. [2018-12-03 06:38:24,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-03 06:38:24,781 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2018-12-03 06:38:24,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:38:24,782 INFO L225 Difference]: With dead ends: 442 [2018-12-03 06:38:24,782 INFO L226 Difference]: Without dead ends: 439 [2018-12-03 06:38:24,783 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-03 06:38:24,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2018-12-03 06:38:24,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 407. [2018-12-03 06:38:24,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2018-12-03 06:38:24,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 461 transitions. [2018-12-03 06:38:24,798 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 461 transitions. Word has length 88 [2018-12-03 06:38:24,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:38:24,798 INFO L480 AbstractCegarLoop]: Abstraction has 407 states and 461 transitions. [2018-12-03 06:38:24,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 06:38:24,799 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 461 transitions. [2018-12-03 06:38:24,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-03 06:38:24,799 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:38:24,800 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] [2018-12-03 06:38:24,800 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:38:24,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:38:24,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1608108542, now seen corresponding path program 1 times [2018-12-03 06:38:24,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:38:24,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:24,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:38:24,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:24,801 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:38:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:38:24,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:38:24,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:38:24,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 06:38:24,836 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:38:24,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 06:38:24,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 06:38:24,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 06:38:24,836 INFO L87 Difference]: Start difference. First operand 407 states and 461 transitions. Second operand 6 states. [2018-12-03 06:38:24,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:38:24,865 INFO L93 Difference]: Finished difference Result 800 states and 920 transitions. [2018-12-03 06:38:24,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 06:38:24,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-12-03 06:38:24,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:38:24,868 INFO L225 Difference]: With dead ends: 800 [2018-12-03 06:38:24,868 INFO L226 Difference]: Without dead ends: 417 [2018-12-03 06:38:24,869 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 [2018-12-03 06:38:24,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2018-12-03 06:38:24,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2018-12-03 06:38:24,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2018-12-03 06:38:24,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 471 transitions. [2018-12-03 06:38:24,889 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 471 transitions. Word has length 89 [2018-12-03 06:38:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:38:24,890 INFO L480 AbstractCegarLoop]: Abstraction has 417 states and 471 transitions. [2018-12-03 06:38:24,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 06:38:24,890 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 471 transitions. [2018-12-03 06:38:24,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-03 06:38:24,891 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:38:24,891 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] [2018-12-03 06:38:24,891 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:38:24,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:38:24,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1333348928, now seen corresponding path program 1 times [2018-12-03 06:38:24,892 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:38:24,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:24,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:38:24,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:24,892 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:38:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:38:24,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:38:24,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:38:24,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-03 06:38:24,975 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:38:24,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 06:38:24,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 06:38:24,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-03 06:38:24,976 INFO L87 Difference]: Start difference. First operand 417 states and 471 transitions. Second operand 8 states. [2018-12-03 06:38:25,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:38:25,000 INFO L93 Difference]: Finished difference Result 824 states and 956 transitions. [2018-12-03 06:38:25,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 06:38:25,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2018-12-03 06:38:25,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:38:25,002 INFO L225 Difference]: With dead ends: 824 [2018-12-03 06:38:25,002 INFO L226 Difference]: Without dead ends: 431 [2018-12-03 06:38:25,003 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 [2018-12-03 06:38:25,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2018-12-03 06:38:25,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 425. [2018-12-03 06:38:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2018-12-03 06:38:25,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 479 transitions. [2018-12-03 06:38:25,015 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 479 transitions. Word has length 89 [2018-12-03 06:38:25,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:38:25,015 INFO L480 AbstractCegarLoop]: Abstraction has 425 states and 479 transitions. [2018-12-03 06:38:25,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 06:38:25,016 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 479 transitions. [2018-12-03 06:38:25,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-03 06:38:25,016 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:38:25,016 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] [2018-12-03 06:38:25,017 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:38:25,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:38:25,017 INFO L82 PathProgramCache]: Analyzing trace with hash 616951327, now seen corresponding path program 1 times [2018-12-03 06:38:25,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:38:25,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:25,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:38:25,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:25,018 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:38:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:38:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:38:25,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:38:25,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 06:38:25,066 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:38:25,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 06:38:25,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 06:38:25,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 06:38:25,066 INFO L87 Difference]: Start difference. First operand 425 states and 479 transitions. Second operand 4 states. [2018-12-03 06:38:25,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:38:25,185 INFO L93 Difference]: Finished difference Result 1297 states and 1538 transitions. [2018-12-03 06:38:25,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 06:38:25,185 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-12-03 06:38:25,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:38:25,189 INFO L225 Difference]: With dead ends: 1297 [2018-12-03 06:38:25,189 INFO L226 Difference]: Without dead ends: 896 [2018-12-03 06:38:25,190 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 [2018-12-03 06:38:25,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2018-12-03 06:38:25,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 567. [2018-12-03 06:38:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2018-12-03 06:38:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 634 transitions. [2018-12-03 06:38:25,227 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 634 transitions. Word has length 89 [2018-12-03 06:38:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:38:25,227 INFO L480 AbstractCegarLoop]: Abstraction has 567 states and 634 transitions. [2018-12-03 06:38:25,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 06:38:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 634 transitions. [2018-12-03 06:38:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-03 06:38:25,229 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:38:25,229 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, 1] [2018-12-03 06:38:25,229 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:38:25,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:38:25,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1617903067, now seen corresponding path program 1 times [2018-12-03 06:38:25,229 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:38:25,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:25,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:38:25,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:38:25,230 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:38:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 06:38:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 06:38:25,315 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 06:38:25,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 06:38:25 BoogieIcfgContainer [2018-12-03 06:38:25,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 06:38:25,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 06:38:25,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 06:38:25,391 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 06:38:25,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:38:23" (3/4) ... [2018-12-03 06:38:25,393 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-03 06:38:25,465 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_def2df6a-9876-42a8-b1c9-905bb2bd3360/bin-2019/utaipan/witness.graphml [2018-12-03 06:38:25,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 06:38:25,466 INFO L168 Benchmark]: Toolchain (without parser) took 2974.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.5 MB). Free memory was 953.5 MB in the beginning and 869.4 MB in the end (delta: 84.0 MB). Peak memory consumption was 289.5 MB. Max. memory is 11.5 GB. [2018-12-03 06:38:25,466 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:38:25,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -136.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2018-12-03 06:38:25,467 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.13 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. [2018-12-03 06:38:25,467 INFO L168 Benchmark]: Boogie Preprocessor took 31.64 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-03 06:38:25,467 INFO L168 Benchmark]: RCFGBuilder took 369.72 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2018-12-03 06:38:25,467 INFO L168 Benchmark]: TraceAbstraction took 2153.45 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 101.7 MB). Free memory was 1.0 GB in the beginning and 899.0 MB in the end (delta: 135.5 MB). Peak memory consumption was 237.3 MB. Max. memory is 11.5 GB. [2018-12-03 06:38:25,468 INFO L168 Benchmark]: Witness Printer took 73.88 ms. Allocated memory is still 1.2 GB. Free memory was 899.0 MB in the beginning and 869.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2018-12-03 06:38:25,469 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 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 313.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -136.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.13 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 31.64 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 369.72 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2153.45 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 101.7 MB). Free memory was 1.0 GB in the beginning and 899.0 MB in the end (delta: 135.5 MB). Peak memory consumption was 237.3 MB. Max. memory is 11.5 GB. * Witness Printer took 73.88 ms. Allocated memory is still 1.2 GB. Free memory was 899.0 MB in the beginning and 869.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 216]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L691] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L889] int waterLevel = 1; [L890] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] 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] [L126] 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] [L127] 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] [L128] 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] [L487] int retValue_acc ; [L490] retValue_acc = 1 [L491] 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] [L128] 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] [L128] tmp = valid_product() [L130] 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] [L132] 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] [L133] 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] [L112] 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] [L146] int splverifierCounter ; [L147] int tmp ; [L148] int tmp___0 ; [L149] int tmp___1 ; [L150] int tmp___2 ; [L153] 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] [L155] 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] [L157] 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] [L163] tmp = __VERIFIER_nondet_int() [L165] 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] [L167] 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] [L907] COND TRUE waterLevel < 2 [L908] 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] [L167] 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] [L173] tmp___0 = __VERIFIER_nondet_int() [L175] 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] [L177] 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] [L919] COND FALSE !(\read(methaneLevelCritical)) [L922] 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] [L177] 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] [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp___2)) [L191] tmp___1 = __VERIFIER_nondet_int() [L193] COND TRUE \read(tmp___1) 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___1=1, tmp___2=0, waterLevel=2] [L200] 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] [L237] 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] [L244] 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] [L246] 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] [L318] 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] [L321] 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] [L336] 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] [L292] 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] [L295] 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] [L310] 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] [L266] 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] [L269] 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] [L271] 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] [L415] int retValue_acc ; [L416] int tmp ; [L417] 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] [L421] 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] [L969] 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] [L972] COND FALSE !(waterLevel < 2) [L976] retValue_acc = 0 [L977] 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] [L421] 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] [L421] tmp = isHighWaterSensorDry() [L423] COND FALSE !(\read(tmp)) [L426] 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] [L428] retValue_acc = tmp___0 [L429] 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] [L271] 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] [L271] tmp = isHighWaterLevel() [L273] 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] [L275] 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] [L346] 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] [L275] 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] [L310] 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] [L336] 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] [L246] 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] [L252] 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] [L497] int tmp ; [L498] 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] [L502] 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] [L928] int retValue_acc ; [L931] retValue_acc = methaneLevelCritical [L932] 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] [L502] 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] [L502] tmp = isMethaneLevelCritical() [L504] 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] [L506] 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] [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] 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] [L506] 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] [L506] tmp___0 = isPumpRunning() [L508] 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] [L510] 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] [L216] __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, 160 locations, 1 error locations. UNSAFE Result, 2.1s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1596 SDtfs, 865 SDslu, 2992 SDs, 0 SdLazy, 989 SolverSat, 247 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=567occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 392 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 747 NumberOfCodeBlocks, 747 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 645 ConstructedInterpolants, 0 QuantifiedInterpolants, 85655 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...