./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product48_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_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product48_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/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 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:41:04,930 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:41:04,931 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:41:04,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:41:04,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:41:04,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:41:04,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:41:04,939 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:41:04,940 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:41:04,941 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:41:04,941 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:41:04,941 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:41:04,942 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:41:04,942 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:41:04,943 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:41:04,943 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:41:04,944 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:41:04,944 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:41:04,945 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:41:04,946 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:41:04,947 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:41:04,947 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:41:04,948 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:41:04,949 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:41:04,949 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:41:04,949 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:41:04,950 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:41:04,950 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:41:04,951 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:41:04,951 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:41:04,951 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:41:04,952 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:41:04,952 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:41:04,952 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:41:04,952 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:41:04,953 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:41:04,953 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 10:41:04,960 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:41:04,960 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:41:04,961 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:41:04,961 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:41:04,961 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:41:04,961 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:41:04,961 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:41:04,961 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 10:41:04,962 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:41:04,962 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:41:04,962 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 10:41:04,962 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 10:41:04,962 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:41:04,962 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:41:04,962 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:41:04,963 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:41:04,963 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:41:04,963 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:41:04,963 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:41:04,963 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:41:04,963 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:41:04,963 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:41:04,963 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:41:04,963 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:41:04,963 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:41:04,963 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:41:04,964 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:41:04,964 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:41:04,964 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:41:04,964 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:41:04,964 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:41:04,964 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:41:04,964 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 10:41:04,964 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:41:04,964 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:41:04,964 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 10:41:04,964 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_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/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 -> 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b [2018-12-09 10:41:04,982 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:41:04,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:41:04,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:41:04,992 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:41:04,992 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:41:04,992 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product48_false-unreach-call_false-termination.cil.c [2018-12-09 10:41:05,032 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/data/c740b7ca2/f465e4f1fd33403abc2582b9c6750471/FLAGe9f856a67 [2018-12-09 10:41:05,354 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:41:05,354 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/sv-benchmarks/c/product-lines/minepump_spec4_product48_false-unreach-call_false-termination.cil.c [2018-12-09 10:41:05,360 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/data/c740b7ca2/f465e4f1fd33403abc2582b9c6750471/FLAGe9f856a67 [2018-12-09 10:41:05,368 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/data/c740b7ca2/f465e4f1fd33403abc2582b9c6750471 [2018-12-09 10:41:05,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:41:05,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:41:05,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:41:05,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:41:05,374 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:41:05,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05, skipping insertion in model container [2018-12-09 10:41:05,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:41:05,406 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:41:05,565 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:41:05,609 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:41:05,663 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:41:05,683 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:41:05,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05 WrapperNode [2018-12-09 10:41:05,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:41:05,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:41:05,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:41:05,684 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:41:05,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:41:05,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:41:05,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:41:05,703 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:41:05,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (1/1) ... [2018-12-09 10:41:05,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:41:05,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:41:05,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:41:05,728 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:41:05,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/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 [2018-12-09 10:41:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 10:41:05,760 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 10:41:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 10:41:05,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 10:41:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:41:05,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:41:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 10:41:05,761 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 10:41:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:41:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 10:41:05,761 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 10:41:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 10:41:05,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 10:41:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 10:41:05,761 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 10:41:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 10:41:05,762 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 10:41:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 10:41:05,762 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 10:41:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 10:41:05,762 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 10:41:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 10:41:05,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 10:41:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 10:41:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 10:41:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 10:41:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 10:41:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 10:41:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 10:41:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 10:41:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 10:41:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 10:41:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 10:41:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 10:41:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 10:41:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 10:41:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 10:41:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 10:41:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 10:41:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 10:41:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 10:41:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 10:41:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 10:41:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 10:41:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 10:41:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 10:41:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 10:41:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 10:41:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 10:41:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 10:41:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 10:41:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 10:41:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 10:41:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 10:41:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:41:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:41:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 10:41:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 10:41:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 10:41:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 10:41:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:41:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:41:06,048 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:41:06,049 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 10:41:06,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:41:06 BoogieIcfgContainer [2018-12-09 10:41:06,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:41:06,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:41:06,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:41:06,052 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:41:06,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:41:05" (1/3) ... [2018-12-09 10:41:06,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c03a3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:41:06, skipping insertion in model container [2018-12-09 10:41:06,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:41:05" (2/3) ... [2018-12-09 10:41:06,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c03a3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:41:06, skipping insertion in model container [2018-12-09 10:41:06,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:41:06" (3/3) ... [2018-12-09 10:41:06,054 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48_false-unreach-call_false-termination.cil.c [2018-12-09 10:41:06,060 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:41:06,065 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:41:06,074 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:41:06,093 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:41:06,093 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:41:06,093 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:41:06,093 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:41:06,093 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:41:06,093 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:41:06,093 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:41:06,093 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:41:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2018-12-09 10:41:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 10:41:06,110 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:41:06,110 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:41:06,112 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:41:06,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:06,115 INFO L82 PathProgramCache]: Analyzing trace with hash -883248293, now seen corresponding path program 1 times [2018-12-09 10:41:06,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:41:06,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:06,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:06,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:06,146 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:41:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:06,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:41:06,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:41:06,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 10:41:06,253 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:41:06,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 10:41:06,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 10:41:06,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:41:06,265 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 2 states. [2018-12-09 10:41:06,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:41:06,288 INFO L93 Difference]: Finished difference Result 286 states and 353 transitions. [2018-12-09 10:41:06,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 10:41:06,289 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 10:41:06,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:41:06,296 INFO L225 Difference]: With dead ends: 286 [2018-12-09 10:41:06,296 INFO L226 Difference]: Without dead ends: 143 [2018-12-09 10:41:06,298 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:41:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-12-09 10:41:06,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-12-09 10:41:06,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-12-09 10:41:06,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2018-12-09 10:41:06,329 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 46 [2018-12-09 10:41:06,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:41:06,329 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2018-12-09 10:41:06,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 10:41:06,329 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2018-12-09 10:41:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 10:41:06,331 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:41:06,331 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:41:06,331 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:41:06,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:06,331 INFO L82 PathProgramCache]: Analyzing trace with hash 693615200, now seen corresponding path program 1 times [2018-12-09 10:41:06,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:41:06,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:06,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:06,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:06,332 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:41:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:41:06,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:41:06,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:41:06,381 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:41:06,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:41:06,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:41:06,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:41:06,383 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 3 states. [2018-12-09 10:41:06,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:41:06,396 INFO L93 Difference]: Finished difference Result 225 states and 263 transitions. [2018-12-09 10:41:06,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:41:06,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 10:41:06,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:41:06,398 INFO L225 Difference]: With dead ends: 225 [2018-12-09 10:41:06,398 INFO L226 Difference]: Without dead ends: 134 [2018-12-09 10:41:06,399 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:41:06,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-12-09 10:41:06,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-12-09 10:41:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-12-09 10:41:06,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2018-12-09 10:41:06,406 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 47 [2018-12-09 10:41:06,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:41:06,407 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2018-12-09 10:41:06,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:41:06,407 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2018-12-09 10:41:06,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 10:41:06,408 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:41:06,408 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] [2018-12-09 10:41:06,408 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:41:06,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:06,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1778384188, now seen corresponding path program 1 times [2018-12-09 10:41:06,408 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:41:06,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:06,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:06,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:06,409 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:41:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:06,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:41:06,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:41:06,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:41:06,475 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:41:06,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:41:06,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:41:06,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:41:06,476 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 7 states. [2018-12-09 10:41:06,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:41:06,725 INFO L93 Difference]: Finished difference Result 404 states and 488 transitions. [2018-12-09 10:41:06,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 10:41:06,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 10:41:06,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:41:06,727 INFO L225 Difference]: With dead ends: 404 [2018-12-09 10:41:06,727 INFO L226 Difference]: Without dead ends: 294 [2018-12-09 10:41:06,728 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:41:06,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-12-09 10:41:06,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 282. [2018-12-09 10:41:06,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2018-12-09 10:41:06,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 340 transitions. [2018-12-09 10:41:06,748 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 340 transitions. Word has length 52 [2018-12-09 10:41:06,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:41:06,748 INFO L480 AbstractCegarLoop]: Abstraction has 282 states and 340 transitions. [2018-12-09 10:41:06,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:41:06,748 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 340 transitions. [2018-12-09 10:41:06,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 10:41:06,750 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:41:06,750 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:41:06,750 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:41:06,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:06,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1042109810, now seen corresponding path program 1 times [2018-12-09 10:41:06,750 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:41:06,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:06,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:06,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:06,751 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:41:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:41:06,837 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:41:06,837 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 10:41:06,837 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:41:06,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 10:41:06,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 10:41:06,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:41:06,838 INFO L87 Difference]: Start difference. First operand 282 states and 340 transitions. Second operand 10 states. [2018-12-09 10:41:07,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:41:07,176 INFO L93 Difference]: Finished difference Result 1008 states and 1308 transitions. [2018-12-09 10:41:07,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 10:41:07,176 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-09 10:41:07,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:41:07,179 INFO L225 Difference]: With dead ends: 1008 [2018-12-09 10:41:07,180 INFO L226 Difference]: Without dead ends: 750 [2018-12-09 10:41:07,181 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-09 10:41:07,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2018-12-09 10:41:07,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 738. [2018-12-09 10:41:07,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2018-12-09 10:41:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 924 transitions. [2018-12-09 10:41:07,211 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 924 transitions. Word has length 57 [2018-12-09 10:41:07,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:41:07,211 INFO L480 AbstractCegarLoop]: Abstraction has 738 states and 924 transitions. [2018-12-09 10:41:07,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 10:41:07,211 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 924 transitions. [2018-12-09 10:41:07,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 10:41:07,213 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:41:07,213 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:41:07,213 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:41:07,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:07,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1069447592, now seen corresponding path program 1 times [2018-12-09 10:41:07,214 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:41:07,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:07,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:07,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:07,215 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:41:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:41:07,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:41:07,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 10:41:07,262 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:41:07,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 10:41:07,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 10:41:07,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:41:07,263 INFO L87 Difference]: Start difference. First operand 738 states and 924 transitions. Second operand 4 states. [2018-12-09 10:41:07,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:41:07,447 INFO L93 Difference]: Finished difference Result 1909 states and 2577 transitions. [2018-12-09 10:41:07,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 10:41:07,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-09 10:41:07,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:41:07,452 INFO L225 Difference]: With dead ends: 1909 [2018-12-09 10:41:07,452 INFO L226 Difference]: Without dead ends: 1195 [2018-12-09 10:41:07,454 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 10:41:07,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2018-12-09 10:41:07,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1057. [2018-12-09 10:41:07,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2018-12-09 10:41:07,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1310 transitions. [2018-12-09 10:41:07,500 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1310 transitions. Word has length 61 [2018-12-09 10:41:07,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:41:07,500 INFO L480 AbstractCegarLoop]: Abstraction has 1057 states and 1310 transitions. [2018-12-09 10:41:07,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 10:41:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1310 transitions. [2018-12-09 10:41:07,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 10:41:07,502 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:41:07,502 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:41:07,503 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:41:07,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:07,503 INFO L82 PathProgramCache]: Analyzing trace with hash -577113559, now seen corresponding path program 1 times [2018-12-09 10:41:07,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:41:07,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:07,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:07,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:07,504 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:41:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-09 10:41:07,585 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:41:07,585 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:41:07,586 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2018-12-09 10:41:07,587 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [61], [63], [64], [65], [66], [67], [102], [111], [115], [119], [122], [127], [133], [135], [141], [144], [147], [157], [158], [181], [182], [197], [204], [207], [241], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [283], [295], [296], [301], [302], [303], [304], [317], [318], [323], [324], [325] [2018-12-09 10:41:07,617 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:41:07,617 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:41:08,004 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:41:08,005 INFO L272 AbstractInterpreter]: Visited 67 different actions 137 times. Merged at 13 different actions 19 times. Never widened. Performed 5095 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5095 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 10:41:08,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:08,011 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:41:08,011 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:41:08,011 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 10:41:08,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:08,020 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:41:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:08,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:41:08,184 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:41:08,184 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:41:08,311 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:41:08,337 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 10:41:08,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-09 10:41:08,337 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 10:41:08,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 10:41:08,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 10:41:08,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-09 10:41:08,338 INFO L87 Difference]: Start difference. First operand 1057 states and 1310 transitions. Second operand 12 states. [2018-12-09 10:41:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:41:10,087 INFO L93 Difference]: Finished difference Result 2485 states and 3325 transitions. [2018-12-09 10:41:10,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-12-09 10:41:10,087 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2018-12-09 10:41:10,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:41:10,094 INFO L225 Difference]: With dead ends: 2485 [2018-12-09 10:41:10,094 INFO L226 Difference]: Without dead ends: 1730 [2018-12-09 10:41:10,097 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 182 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-12-09 10:41:10,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2018-12-09 10:41:10,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1519. [2018-12-09 10:41:10,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1519 states. [2018-12-09 10:41:10,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1905 transitions. [2018-12-09 10:41:10,179 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1905 transitions. Word has length 89 [2018-12-09 10:41:10,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:41:10,179 INFO L480 AbstractCegarLoop]: Abstraction has 1519 states and 1905 transitions. [2018-12-09 10:41:10,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 10:41:10,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1905 transitions. [2018-12-09 10:41:10,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-09 10:41:10,182 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:41:10,182 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:41:10,182 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:41:10,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:10,182 INFO L82 PathProgramCache]: Analyzing trace with hash 176807622, now seen corresponding path program 1 times [2018-12-09 10:41:10,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:41:10,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:10,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:10,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:10,183 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:41:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 10:41:10,238 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:41:10,238 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:41:10,239 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-12-09 10:41:10,239 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [65], [66], [67], [70], [72], [73], [76], [79], [81], [82], [85], [87], [93], [97], [100], [101], [102], [111], [115], [119], [125], [127], [133], [135], [141], [147], [155], [156], [157], [158], [159], [161], [166], [169], [170], [172], [177], [179], [180], [181], [182], [190], [191], [194], [197], [201], [207], [236], [240], [241], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [279], [280], [283], [285], [286], [287], [288], [291], [292], [293], [294], [303], [304], [307], [308], [309], [310], [311], [312], [313], [314], [315], [316], [317], [318], [323], [324], [325] [2018-12-09 10:41:10,241 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:41:10,241 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:41:10,746 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:41:10,746 INFO L272 AbstractInterpreter]: Visited 116 different actions 414 times. Merged at 15 different actions 29 times. Never widened. Performed 12557 root evaluator evaluations with a maximum evaluation depth of 3. Performed 12557 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 10:41:10,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:10,755 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:41:10,755 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:41:10,755 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 10:41:10,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:10,762 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:41:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:10,840 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:41:10,895 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-12-09 10:41:10,895 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:41:11,043 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 10:41:11,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 10:41:11,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-09 10:41:11,058 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:41:11,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 10:41:11,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 10:41:11,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-09 10:41:11,059 INFO L87 Difference]: Start difference. First operand 1519 states and 1905 transitions. Second operand 5 states. [2018-12-09 10:41:11,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:41:11,106 INFO L93 Difference]: Finished difference Result 3014 states and 3882 transitions. [2018-12-09 10:41:11,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 10:41:11,107 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-12-09 10:41:11,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:41:11,111 INFO L225 Difference]: With dead ends: 3014 [2018-12-09 10:41:11,111 INFO L226 Difference]: Without dead ends: 1519 [2018-12-09 10:41:11,114 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 291 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-09 10:41:11,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2018-12-09 10:41:11,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1519. [2018-12-09 10:41:11,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1519 states. [2018-12-09 10:41:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1899 transitions. [2018-12-09 10:41:11,159 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1899 transitions. Word has length 147 [2018-12-09 10:41:11,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:41:11,159 INFO L480 AbstractCegarLoop]: Abstraction has 1519 states and 1899 transitions. [2018-12-09 10:41:11,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 10:41:11,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1899 transitions. [2018-12-09 10:41:11,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-09 10:41:11,162 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:41:11,162 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:41:11,162 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:41:11,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:11,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1424263484, now seen corresponding path program 1 times [2018-12-09 10:41:11,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:41:11,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:11,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:11,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:11,163 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:41:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:11,216 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 10:41:11,216 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:41:11,216 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:41:11,216 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-12-09 10:41:11,216 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [65], [66], [67], [70], [72], [73], [76], [79], [81], [82], [85], [87], [93], [97], [100], [101], [102], [111], [115], [119], [125], [127], [133], [135], [141], [147], [155], [156], [157], [158], [159], [161], [166], [169], [170], [172], [175], [179], [180], [181], [182], [190], [191], [194], [197], [201], [207], [236], [240], [241], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [279], [280], [283], [285], [286], [287], [288], [291], [292], [293], [294], [303], [304], [307], [308], [309], [310], [311], [312], [313], [314], [315], [316], [317], [318], [323], [324], [325] [2018-12-09 10:41:11,219 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:41:11,219 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:41:11,670 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:41:11,670 INFO L272 AbstractInterpreter]: Visited 116 different actions 435 times. Merged at 17 different actions 32 times. Never widened. Performed 13451 root evaluator evaluations with a maximum evaluation depth of 3. Performed 13451 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 10:41:11,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:11,672 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:41:11,672 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:41:11,672 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 10:41:11,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:11,677 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:41:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:11,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:41:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-12-09 10:41:11,751 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:41:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 10:41:11,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 10:41:11,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-09 10:41:11,937 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:41:11,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:41:11,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:41:11,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:41:11,937 INFO L87 Difference]: Start difference. First operand 1519 states and 1899 transitions. Second operand 6 states. [2018-12-09 10:41:11,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:41:11,979 INFO L93 Difference]: Finished difference Result 2791 states and 3686 transitions. [2018-12-09 10:41:11,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:41:11,979 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2018-12-09 10:41:11,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:41:11,982 INFO L225 Difference]: With dead ends: 2791 [2018-12-09 10:41:11,982 INFO L226 Difference]: Without dead ends: 1296 [2018-12-09 10:41:11,985 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 289 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:41:11,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2018-12-09 10:41:12,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1292. [2018-12-09 10:41:12,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2018-12-09 10:41:12,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1617 transitions. [2018-12-09 10:41:12,023 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1617 transitions. Word has length 147 [2018-12-09 10:41:12,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:41:12,023 INFO L480 AbstractCegarLoop]: Abstraction has 1292 states and 1617 transitions. [2018-12-09 10:41:12,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:41:12,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1617 transitions. [2018-12-09 10:41:12,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-09 10:41:12,024 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:41:12,024 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:41:12,025 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:41:12,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:12,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1269114995, now seen corresponding path program 1 times [2018-12-09 10:41:12,025 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:41:12,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:12,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:12,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:12,025 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:41:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:12,113 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-09 10:41:12,113 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:41:12,113 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:41:12,113 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-12-09 10:41:12,114 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [65], [66], [67], [70], [72], [73], [76], [80], [81], [82], [85], [87], [93], [97], [100], [101], [102], [111], [115], [119], [122], [125], [127], [133], [135], [141], [147], [155], [156], [157], [158], [159], [161], [166], [169], [170], [172], [177], [179], [180], [181], [182], [190], [191], [194], [197], [201], [207], [236], [240], [241], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [279], [280], [283], [285], [286], [287], [288], [291], [292], [293], [294], [295], [296], [303], [304], [307], [308], [309], [310], [311], [312], [313], [314], [315], [316], [317], [318], [323], [324], [325] [2018-12-09 10:41:12,116 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:41:12,117 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:41:12,723 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:41:12,723 INFO L272 AbstractInterpreter]: Visited 121 different actions 581 times. Merged at 16 different actions 46 times. Never widened. Performed 18935 root evaluator evaluations with a maximum evaluation depth of 3. Performed 18935 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-09 10:41:12,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:12,724 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:41:12,724 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:41:12,724 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 10:41:12,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:12,730 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:41:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:41:12,786 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:41:12,854 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:41:12,854 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:41:12,990 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-09 10:41:13,007 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 10:41:13,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-09 10:41:13,007 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 10:41:13,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 10:41:13,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 10:41:13,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-09 10:41:13,008 INFO L87 Difference]: Start difference. First operand 1292 states and 1617 transitions. Second operand 15 states. [2018-12-09 10:41:13,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:41:13,868 INFO L93 Difference]: Finished difference Result 2605 states and 3477 transitions. [2018-12-09 10:41:13,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 10:41:13,868 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 151 [2018-12-09 10:41:13,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:41:13,872 INFO L225 Difference]: With dead ends: 2605 [2018-12-09 10:41:13,872 INFO L226 Difference]: Without dead ends: 1496 [2018-12-09 10:41:13,874 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 294 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-09 10:41:13,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2018-12-09 10:41:13,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1178. [2018-12-09 10:41:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2018-12-09 10:41:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1469 transitions. [2018-12-09 10:41:13,914 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1469 transitions. Word has length 151 [2018-12-09 10:41:13,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:41:13,914 INFO L480 AbstractCegarLoop]: Abstraction has 1178 states and 1469 transitions. [2018-12-09 10:41:13,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 10:41:13,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1469 transitions. [2018-12-09 10:41:13,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-12-09 10:41:13,917 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:41:13,917 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:41:13,917 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:41:13,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:41:13,917 INFO L82 PathProgramCache]: Analyzing trace with hash -812770780, now seen corresponding path program 2 times [2018-12-09 10:41:13,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:41:13,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:13,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:41:13,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:41:13,918 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:41:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:41:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:41:14,043 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 10:41:14,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:41:14 BoogieIcfgContainer [2018-12-09 10:41:14,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:41:14,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:41:14,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:41:14,185 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:41:14,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:41:06" (3/4) ... [2018-12-09 10:41:14,187 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 10:41:14,302 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2e7cc851-c0c6-48bb-94f2-96c71fbcd789/bin-2019/utaipan/witness.graphml [2018-12-09 10:41:14,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:41:14,303 INFO L168 Benchmark]: Toolchain (without parser) took 8932.18 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 433.1 MB). Free memory was 954.9 MB in the beginning and 1.2 GB in the end (delta: -216.1 MB). Peak memory consumption was 217.0 MB. Max. memory is 11.5 GB. [2018-12-09 10:41:14,303 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:41:14,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -132.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:41:14,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:41:14,304 INFO L168 Benchmark]: Boogie Preprocessor took 25.00 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:41:14,304 INFO L168 Benchmark]: RCFGBuilder took 320.98 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: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-12-09 10:41:14,304 INFO L168 Benchmark]: TraceAbstraction took 8135.18 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 335.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -210.3 MB). Peak memory consumption was 124.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:41:14,304 INFO L168 Benchmark]: Witness Printer took 116.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. [2018-12-09 10:41:14,305 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 311.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -132.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.40 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 25.00 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 320.98 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: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8135.18 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 335.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -210.3 MB). Peak memory consumption was 124.7 MB. Max. memory is 11.5 GB. * Witness Printer took 116.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L774] int waterLevel = 1; [L775] int methaneLevelCritical = 0; [L525] int retValue_acc ; [L526] 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] [L530] 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] [L531] 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] [L532] 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] [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] 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] [L532] 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] [L532] tmp = valid_product() [L534] 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] [L536] 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] [L537] 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] [L516] 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] [L869] int splverifierCounter ; [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L873] int tmp___2 ; [L876] 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] [L878] 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] [L880] 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] [L886] tmp = __VERIFIER_nondet_int() [L888] 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] [L890] 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] [L792] COND TRUE waterLevel < 2 [L793] 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] [L890] 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] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\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=0, waterLevel=2] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___2)) [L914] tmp___1 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___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, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L925] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L570] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L572] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L636] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L592] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L854] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] COND FALSE !(waterLevel < 2) [L861] retValue_acc = 0 [L862] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L738] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L597] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] tmp = isHighWaterLevel() [L599] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L601] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L655] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L661] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L601] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L636] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L572] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L578] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L578] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L925] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L878] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L880] 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=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___2)) [L914] tmp___1 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L925] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L563] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L570] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L572] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L623] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L631] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L595] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L610] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L631] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L572] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L578] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L578] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L925] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L878] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L880] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___2)) [L914] tmp___1 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L925] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L565] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L570] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L572] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L621] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L623] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L631] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L595] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L610] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L631] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L572] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L578] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L439] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 156 locations, 1 error locations. UNSAFE Result, 8.0s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1588 SDtfs, 2205 SDslu, 4170 SDs, 0 SdLazy, 5071 SolverSat, 1468 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1229 GetRequests, 1078 SyntacticMatches, 24 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1519occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.0s AbstIntTime, 4 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 695 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1534 NumberOfCodeBlocks, 1534 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1848 ConstructedInterpolants, 0 QuantifiedInterpolants, 345166 SizeOfPredicates, 17 NumberOfNonLiveVariables, 3323 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 351/405 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...