./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product44_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_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product44_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/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 cd9d3373e3670d73493569b1c43b551709fc0f6c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 03:10:57,938 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:10:57,939 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:10:57,945 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 03:10:57,945 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 03:10:57,945 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 03:10:57,946 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 03:10:57,947 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 03:10:57,947 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 03:10:57,948 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 03:10:57,948 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 03:10:57,948 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:10:57,949 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:10:57,949 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:10:57,950 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:10:57,950 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:10:57,951 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:10:57,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:10:57,952 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:10:57,953 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:10:57,954 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:10:57,954 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:10:57,955 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:10:57,956 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:10:57,956 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:10:57,956 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:10:57,957 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:10:57,957 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:10:57,957 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:10:57,958 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:10:57,958 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:10:57,958 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:10:57,959 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:10:57,959 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:10:57,959 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:10:57,959 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:10:57,960 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 03:10:57,967 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:10:57,967 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:10:57,968 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:10:57,968 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:10:57,968 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:10:57,968 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:10:57,968 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:10:57,968 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 03:10:57,968 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:10:57,968 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:10:57,968 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 03:10:57,968 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 03:10:57,968 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:10:57,969 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:10:57,969 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:10:57,969 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 03:10:57,969 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:10:57,969 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:10:57,969 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 03:10:57,969 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:10:57,970 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 03:10:57,970 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:10:57,970 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 03:10:57,970 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 03:10:57,970 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:10:57,970 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:10:57,970 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:10:57,970 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:10:57,970 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:10:57,970 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:10:57,970 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:10:57,971 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 03:10:57,971 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 03:10:57,971 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:10:57,971 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 03:10:57,971 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 03:10:57,971 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_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/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 -> cd9d3373e3670d73493569b1c43b551709fc0f6c [2018-12-03 03:10:57,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:10:57,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:10:58,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:10:58,003 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:10:58,003 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:10:58,003 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product44_false-unreach-call_false-termination.cil.c [2018-12-03 03:10:58,047 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/data/f4dbaef8b/67b32904bf714d8e91e847ccdcd51aa4/FLAGeea5a3edb [2018-12-03 03:10:58,500 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:10:58,500 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/sv-benchmarks/c/product-lines/minepump_spec4_product44_false-unreach-call_false-termination.cil.c [2018-12-03 03:10:58,506 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/data/f4dbaef8b/67b32904bf714d8e91e847ccdcd51aa4/FLAGeea5a3edb [2018-12-03 03:10:58,514 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/data/f4dbaef8b/67b32904bf714d8e91e847ccdcd51aa4 [2018-12-03 03:10:58,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:10:58,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:10:58,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:10:58,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:10:58,520 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:10:58,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d622ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58, skipping insertion in model container [2018-12-03 03:10:58,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:10:58,547 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:10:58,696 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:10:58,740 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:10:58,789 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:10:58,806 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:10:58,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58 WrapperNode [2018-12-03 03:10:58,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:10:58,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:10:58,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:10:58,807 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:10:58,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:10:58,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:10:58,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:10:58,826 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:10:58,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (1/1) ... [2018-12-03 03:10:58,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:10:58,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:10:58,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:10:58,847 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:10:58,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:10:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-03 03:10:58,878 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-03 03:10:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-03 03:10:58,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-03 03:10:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:10:58,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:10:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-03 03:10:58,879 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-03 03:10:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 03:10:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-03 03:10:58,879 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-03 03:10:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-03 03:10:58,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-03 03:10:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-03 03:10:58,879 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-03 03:10:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-03 03:10:58,879 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-03 03:10:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-03 03:10:58,879 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-03 03:10:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-03 03:10:58,880 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-03 03:10:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-03 03:10:58,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-03 03:10:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-03 03:10:58,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-03 03:10:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-03 03:10:58,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-03 03:10:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-03 03:10:58,881 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-03 03:10:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-03 03:10:58,881 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-03 03:10:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-03 03:10:58,881 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-03 03:10:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-03 03:10:58,881 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-03 03:10:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-03 03:10:58,882 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-03 03:10:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-03 03:10:58,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-03 03:10:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-03 03:10:58,882 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-03 03:10:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-03 03:10:58,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-03 03:10:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-03 03:10:58,882 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-03 03:10:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-03 03:10:58,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-03 03:10:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-03 03:10:58,883 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-03 03:10:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-03 03:10:58,883 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-03 03:10:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 03:10:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:10:58,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:10:58,884 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-03 03:10:58,884 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-03 03:10:58,884 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-03 03:10:58,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-03 03:10:58,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:10:58,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:10:59,160 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:10:59,160 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 03:10:59,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:10:59 BoogieIcfgContainer [2018-12-03 03:10:59,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:10:59,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:10:59,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:10:59,163 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:10:59,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:10:58" (1/3) ... [2018-12-03 03:10:59,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21644600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:10:59, skipping insertion in model container [2018-12-03 03:10:59,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:10:58" (2/3) ... [2018-12-03 03:10:59,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21644600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:10:59, skipping insertion in model container [2018-12-03 03:10:59,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:10:59" (3/3) ... [2018-12-03 03:10:59,165 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product44_false-unreach-call_false-termination.cil.c [2018-12-03 03:10:59,170 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:10:59,175 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 03:10:59,184 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 03:10:59,201 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:10:59,201 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 03:10:59,201 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:10:59,201 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:10:59,201 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:10:59,202 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:10:59,202 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:10:59,202 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:10:59,213 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2018-12-03 03:10:59,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-03 03:10:59,218 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:10:59,218 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:10:59,219 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:10:59,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:10:59,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1541000830, now seen corresponding path program 1 times [2018-12-03 03:10:59,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:10:59,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:10:59,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:10:59,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:10:59,251 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:10:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:10:59,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:10:59,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:10:59,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 03:10:59,355 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:10:59,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 03:10:59,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 03:10:59,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:10:59,367 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2018-12-03 03:10:59,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:10:59,391 INFO L93 Difference]: Finished difference Result 266 states and 323 transitions. [2018-12-03 03:10:59,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 03:10:59,392 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-03 03:10:59,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:10:59,399 INFO L225 Difference]: With dead ends: 266 [2018-12-03 03:10:59,399 INFO L226 Difference]: Without dead ends: 133 [2018-12-03 03:10:59,402 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:10:59,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-12-03 03:10:59,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-12-03 03:10:59,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-12-03 03:10:59,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2018-12-03 03:10:59,433 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 46 [2018-12-03 03:10:59,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:10:59,433 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2018-12-03 03:10:59,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 03:10:59,433 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2018-12-03 03:10:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-03 03:10:59,435 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:10:59,435 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:10:59,435 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:10:59,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:10:59,436 INFO L82 PathProgramCache]: Analyzing trace with hash -550238072, now seen corresponding path program 1 times [2018-12-03 03:10:59,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:10:59,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:10:59,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:10:59,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:10:59,436 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:10:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:10:59,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:10:59,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:10:59,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 03:10:59,487 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:10:59,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 03:10:59,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 03:10:59,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 03:10:59,489 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 3 states. [2018-12-03 03:10:59,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:10:59,501 INFO L93 Difference]: Finished difference Result 202 states and 231 transitions. [2018-12-03 03:10:59,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 03:10:59,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-03 03:10:59,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:10:59,502 INFO L225 Difference]: With dead ends: 202 [2018-12-03 03:10:59,502 INFO L226 Difference]: Without dead ends: 124 [2018-12-03 03:10:59,503 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 03:10:59,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-03 03:10:59,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-12-03 03:10:59,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-03 03:10:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 141 transitions. [2018-12-03 03:10:59,510 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 141 transitions. Word has length 47 [2018-12-03 03:10:59,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:10:59,510 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 141 transitions. [2018-12-03 03:10:59,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 03:10:59,510 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 141 transitions. [2018-12-03 03:10:59,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-03 03:10:59,511 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:10:59,511 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:10:59,511 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:10:59,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:10:59,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1279280585, now seen corresponding path program 1 times [2018-12-03 03:10:59,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:10:59,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:10:59,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:10:59,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:10:59,512 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:10:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:10:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:10:59,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:10:59,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 03:10:59,579 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:10:59,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 03:10:59,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 03:10:59,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-03 03:10:59,579 INFO L87 Difference]: Start difference. First operand 124 states and 141 transitions. Second operand 7 states. [2018-12-03 03:10:59,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:10:59,802 INFO L93 Difference]: Finished difference Result 374 states and 443 transitions. [2018-12-03 03:10:59,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 03:10:59,802 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-03 03:10:59,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:10:59,805 INFO L225 Difference]: With dead ends: 374 [2018-12-03 03:10:59,805 INFO L226 Difference]: Without dead ends: 274 [2018-12-03 03:10:59,806 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 [2018-12-03 03:10:59,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-12-03 03:10:59,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 250. [2018-12-03 03:10:59,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-12-03 03:10:59,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 294 transitions. [2018-12-03 03:10:59,832 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 294 transitions. Word has length 52 [2018-12-03 03:10:59,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:10:59,832 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 294 transitions. [2018-12-03 03:10:59,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 03:10:59,832 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 294 transitions. [2018-12-03 03:10:59,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-03 03:10:59,834 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:10:59,834 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] [2018-12-03 03:10:59,834 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:10:59,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:10:59,835 INFO L82 PathProgramCache]: Analyzing trace with hash 981285256, now seen corresponding path program 1 times [2018-12-03 03:10:59,835 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:10:59,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:10:59,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:10:59,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:10:59,836 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:10:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:10:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:10:59,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:10:59,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-03 03:10:59,934 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:10:59,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 03:10:59,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 03:10:59,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-03 03:10:59,935 INFO L87 Difference]: Start difference. First operand 250 states and 294 transitions. Second operand 10 states. [2018-12-03 03:11:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:11:00,222 INFO L93 Difference]: Finished difference Result 880 states and 1116 transitions. [2018-12-03 03:11:00,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 03:11:00,222 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-03 03:11:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:11:00,226 INFO L225 Difference]: With dead ends: 880 [2018-12-03 03:11:00,226 INFO L226 Difference]: Without dead ends: 654 [2018-12-03 03:11:00,228 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 [2018-12-03 03:11:00,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2018-12-03 03:11:00,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 642. [2018-12-03 03:11:00,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2018-12-03 03:11:00,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 782 transitions. [2018-12-03 03:11:00,269 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 782 transitions. Word has length 57 [2018-12-03 03:11:00,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:11:00,270 INFO L480 AbstractCegarLoop]: Abstraction has 642 states and 782 transitions. [2018-12-03 03:11:00,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 03:11:00,270 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 782 transitions. [2018-12-03 03:11:00,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-03 03:11:00,273 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:11:00,273 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] [2018-12-03 03:11:00,273 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:11:00,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:00,274 INFO L82 PathProgramCache]: Analyzing trace with hash 817931438, now seen corresponding path program 1 times [2018-12-03 03:11:00,274 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:11:00,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:00,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:00,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:00,275 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:11:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:00,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:11:00,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:11:00,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 03:11:00,334 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:11:00,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 03:11:00,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 03:11:00,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 03:11:00,335 INFO L87 Difference]: Start difference. First operand 642 states and 782 transitions. Second operand 4 states. [2018-12-03 03:11:00,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:11:00,564 INFO L93 Difference]: Finished difference Result 1647 states and 2170 transitions. [2018-12-03 03:11:00,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 03:11:00,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-03 03:11:00,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:11:00,569 INFO L225 Difference]: With dead ends: 1647 [2018-12-03 03:11:00,569 INFO L226 Difference]: Without dead ends: 1029 [2018-12-03 03:11:00,571 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 [2018-12-03 03:11:00,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2018-12-03 03:11:00,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 915. [2018-12-03 03:11:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2018-12-03 03:11:00,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1126 transitions. [2018-12-03 03:11:00,616 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1126 transitions. Word has length 61 [2018-12-03 03:11:00,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:11:00,616 INFO L480 AbstractCegarLoop]: Abstraction has 915 states and 1126 transitions. [2018-12-03 03:11:00,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 03:11:00,617 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1126 transitions. [2018-12-03 03:11:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-03 03:11:00,618 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:11:00,619 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] [2018-12-03 03:11:00,619 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:11:00,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:00,619 INFO L82 PathProgramCache]: Analyzing trace with hash -512340523, now seen corresponding path program 1 times [2018-12-03 03:11:00,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:11:00,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:00,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:00,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:00,620 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:11:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-03 03:11:00,692 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:11:00,692 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:11:00,693 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2018-12-03 03:11:00,694 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [48], [83], [92], [96], [100], [103], [108], [114], [116], [122], [125], [128], [138], [139], [162], [163], [204], [211], [214], [222], [230], [234], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [268], [269], [274], [275], [276], [277], [294], [295], [296], [297], [298] [2018-12-03 03:11:00,723 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:11:00,723 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:11:01,153 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 03:11:01,154 INFO L272 AbstractInterpreter]: Visited 65 different actions 133 times. Merged at 13 different actions 19 times. Never widened. Performed 4459 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4459 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-03 03:11:01,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:01,159 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 03:11:01,390 INFO L227 lantSequenceWeakener]: Weakened 85 states. On average, predicates are now at 98.57% of their original sizes. [2018-12-03 03:11:01,390 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 03:11:01,434 INFO L418 sIntCurrentIteration]: We unified 88 AI predicates to 88 [2018-12-03 03:11:01,434 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 03:11:01,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 03:11:01,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-12-03 03:11:01,435 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:11:01,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 03:11:01,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 03:11:01,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-03 03:11:01,436 INFO L87 Difference]: Start difference. First operand 915 states and 1126 transitions. Second operand 9 states. [2018-12-03 03:11:02,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:11:02,334 INFO L93 Difference]: Finished difference Result 1632 states and 2043 transitions. [2018-12-03 03:11:02,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-03 03:11:02,334 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2018-12-03 03:11:02,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:11:02,336 INFO L225 Difference]: With dead ends: 1632 [2018-12-03 03:11:02,337 INFO L226 Difference]: Without dead ends: 741 [2018-12-03 03:11:02,338 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 98 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-12-03 03:11:02,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-12-03 03:11:02,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 655. [2018-12-03 03:11:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2018-12-03 03:11:02,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 781 transitions. [2018-12-03 03:11:02,362 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 781 transitions. Word has length 89 [2018-12-03 03:11:02,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:11:02,362 INFO L480 AbstractCegarLoop]: Abstraction has 655 states and 781 transitions. [2018-12-03 03:11:02,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 03:11:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 781 transitions. [2018-12-03 03:11:02,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-12-03 03:11:02,364 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:11:02,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:11:02,364 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:11:02,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:02,364 INFO L82 PathProgramCache]: Analyzing trace with hash 732570223, now seen corresponding path program 1 times [2018-12-03 03:11:02,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:11:02,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:02,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:02,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:02,365 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:11:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-03 03:11:02,420 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:11:02,420 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:11:02,420 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-12-03 03:11:02,420 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [103], [108], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [156], [160], [161], [162], [163], [171], [172], [201], [204], [208], [214], [217], [221], [222], [230], [234], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [268], [269], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-03 03:11:02,422 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:11:02,422 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:11:02,496 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 03:11:02,496 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Performed 1931 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1931 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 03:11:02,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:02,497 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 03:11:02,587 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.66% of their original sizes. [2018-12-03 03:11:02,588 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 03:11:02,625 INFO L418 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2018-12-03 03:11:02,625 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 03:11:02,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 03:11:02,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-12-03 03:11:02,625 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:11:02,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 03:11:02,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 03:11:02,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-03 03:11:02,626 INFO L87 Difference]: Start difference. First operand 655 states and 781 transitions. Second operand 11 states. [2018-12-03 03:11:04,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:11:04,309 INFO L93 Difference]: Finished difference Result 1697 states and 2068 transitions. [2018-12-03 03:11:04,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-03 03:11:04,310 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 134 [2018-12-03 03:11:04,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:11:04,312 INFO L225 Difference]: With dead ends: 1697 [2018-12-03 03:11:04,312 INFO L226 Difference]: Without dead ends: 1066 [2018-12-03 03:11:04,313 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-03 03:11:04,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2018-12-03 03:11:04,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1030. [2018-12-03 03:11:04,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1030 states. [2018-12-03 03:11:04,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1219 transitions. [2018-12-03 03:11:04,341 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1219 transitions. Word has length 134 [2018-12-03 03:11:04,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:11:04,342 INFO L480 AbstractCegarLoop]: Abstraction has 1030 states and 1219 transitions. [2018-12-03 03:11:04,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 03:11:04,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1219 transitions. [2018-12-03 03:11:04,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-03 03:11:04,343 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:11:04,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:11:04,344 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:11:04,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:04,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1580493578, now seen corresponding path program 1 times [2018-12-03 03:11:04,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:11:04,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:04,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:04,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:04,345 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:11:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:04,377 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 03:11:04,377 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:11:04,378 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:11:04,378 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-03 03:11:04,378 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [61], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [103], [106], [108], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [156], [160], [161], [162], [163], [171], [172], [201], [204], [208], [214], [217], [221], [222], [230], [234], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [268], [269], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-03 03:11:04,380 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:11:04,380 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:11:04,505 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 03:11:04,505 INFO L272 AbstractInterpreter]: Visited 55 different actions 73 times. Merged at 6 different actions 6 times. Never widened. Performed 4014 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4014 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 03:11:04,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:04,506 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 03:11:04,632 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.61% of their original sizes. [2018-12-03 03:11:04,632 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 03:11:04,706 INFO L418 sIntCurrentIteration]: We unified 129 AI predicates to 129 [2018-12-03 03:11:04,706 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 03:11:04,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 03:11:04,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-12-03 03:11:04,707 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:11:04,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-03 03:11:04,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-03 03:11:04,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-12-03 03:11:04,707 INFO L87 Difference]: Start difference. First operand 1030 states and 1219 transitions. Second operand 15 states. [2018-12-03 03:11:07,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:11:07,091 INFO L93 Difference]: Finished difference Result 3046 states and 3796 transitions. [2018-12-03 03:11:07,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 03:11:07,091 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 130 [2018-12-03 03:11:07,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:11:07,096 INFO L225 Difference]: With dead ends: 3046 [2018-12-03 03:11:07,096 INFO L226 Difference]: Without dead ends: 2182 [2018-12-03 03:11:07,098 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-03 03:11:07,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2018-12-03 03:11:07,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2015. [2018-12-03 03:11:07,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2015 states. [2018-12-03 03:11:07,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2421 transitions. [2018-12-03 03:11:07,162 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2421 transitions. Word has length 130 [2018-12-03 03:11:07,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:11:07,162 INFO L480 AbstractCegarLoop]: Abstraction has 2015 states and 2421 transitions. [2018-12-03 03:11:07,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-03 03:11:07,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2421 transitions. [2018-12-03 03:11:07,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-03 03:11:07,165 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:11:07,165 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:11:07,165 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:11:07,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:07,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1533526647, now seen corresponding path program 1 times [2018-12-03 03:11:07,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:11:07,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:07,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:07,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:07,166 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:11:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 03:11:07,209 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:11:07,209 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:11:07,210 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-03 03:11:07,210 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [106], [108], [111], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [156], [160], [161], [162], [163], [168], [170], [171], [172], [201], [204], [208], [214], [217], [221], [222], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [270], [271], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-03 03:11:07,212 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:11:07,212 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:11:07,958 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 03:11:07,958 INFO L272 AbstractInterpreter]: Visited 109 different actions 560 times. Merged at 17 different actions 55 times. Never widened. Performed 22259 root evaluator evaluations with a maximum evaluation depth of 3. Performed 22259 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 5 different actions. Largest state had 133 variables. [2018-12-03 03:11:07,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:07,962 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 03:11:07,962 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:11:07,962 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/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 [2018-12-03 03:11:07,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:07,969 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 03:11:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:08,051 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:11:08,084 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-03 03:11:08,084 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:11:08,222 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 03:11:08,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 03:11:08,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-03 03:11:08,238 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:11:08,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 03:11:08,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 03:11:08,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 03:11:08,239 INFO L87 Difference]: Start difference. First operand 2015 states and 2421 transitions. Second operand 6 states. [2018-12-03 03:11:08,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:11:08,315 INFO L93 Difference]: Finished difference Result 4115 states and 5083 transitions. [2018-12-03 03:11:08,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 03:11:08,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-12-03 03:11:08,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:11:08,321 INFO L225 Difference]: With dead ends: 4115 [2018-12-03 03:11:08,321 INFO L226 Difference]: Without dead ends: 2124 [2018-12-03 03:11:08,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 255 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-03 03:11:08,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2018-12-03 03:11:08,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 2090. [2018-12-03 03:11:08,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-12-03 03:11:08,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2502 transitions. [2018-12-03 03:11:08,385 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2502 transitions. Word has length 130 [2018-12-03 03:11:08,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:11:08,386 INFO L480 AbstractCegarLoop]: Abstraction has 2090 states and 2502 transitions. [2018-12-03 03:11:08,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 03:11:08,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2502 transitions. [2018-12-03 03:11:08,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-03 03:11:08,388 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:11:08,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:11:08,388 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:11:08,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:08,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1107060041, now seen corresponding path program 1 times [2018-12-03 03:11:08,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:11:08,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:08,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:08,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:08,389 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:11:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 03:11:08,436 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:11:08,436 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:11:08,436 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-03 03:11:08,436 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [103], [106], [108], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [158], [160], [161], [162], [163], [171], [172], [201], [204], [208], [214], [217], [221], [222], [230], [234], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [268], [269], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-03 03:11:08,438 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:11:08,438 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:11:08,579 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 03:11:08,580 INFO L272 AbstractInterpreter]: Visited 55 different actions 77 times. Merged at 6 different actions 6 times. Never widened. Performed 4020 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4020 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 03:11:08,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:08,585 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 03:11:08,682 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.67% of their original sizes. [2018-12-03 03:11:08,682 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 03:11:08,750 INFO L418 sIntCurrentIteration]: We unified 129 AI predicates to 129 [2018-12-03 03:11:08,750 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 03:11:08,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 03:11:08,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [8] total 21 [2018-12-03 03:11:08,751 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:11:08,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-03 03:11:08,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-03 03:11:08,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-12-03 03:11:08,751 INFO L87 Difference]: Start difference. First operand 2090 states and 2502 transitions. Second operand 15 states. [2018-12-03 03:11:11,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:11:11,543 INFO L93 Difference]: Finished difference Result 3969 states and 4857 transitions. [2018-12-03 03:11:11,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-03 03:11:11,543 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 130 [2018-12-03 03:11:11,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:11:11,549 INFO L225 Difference]: With dead ends: 3969 [2018-12-03 03:11:11,549 INFO L226 Difference]: Without dead ends: 1903 [2018-12-03 03:11:11,554 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2018-12-03 03:11:11,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2018-12-03 03:11:11,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1748. [2018-12-03 03:11:11,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1748 states. [2018-12-03 03:11:11,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2086 transitions. [2018-12-03 03:11:11,620 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2086 transitions. Word has length 130 [2018-12-03 03:11:11,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:11:11,620 INFO L480 AbstractCegarLoop]: Abstraction has 1748 states and 2086 transitions. [2018-12-03 03:11:11,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-03 03:11:11,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2086 transitions. [2018-12-03 03:11:11,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-03 03:11:11,622 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:11:11,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:11:11,622 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:11:11,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:11,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1998572679, now seen corresponding path program 1 times [2018-12-03 03:11:11,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:11:11,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:11,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:11,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:11,623 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:11:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:11,668 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 03:11:11,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:11:11,668 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:11:11,668 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-03 03:11:11,668 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [106], [108], [111], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [158], [160], [161], [162], [163], [168], [170], [171], [172], [201], [204], [208], [214], [217], [221], [222], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [270], [271], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-03 03:11:11,669 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:11:11,669 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:11:11,808 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 03:11:11,808 INFO L272 AbstractInterpreter]: Visited 55 different actions 75 times. Merged at 4 different actions 4 times. Never widened. Performed 4009 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4009 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 03:11:11,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:11,813 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 03:11:11,903 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.61% of their original sizes. [2018-12-03 03:11:11,903 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 03:11:11,962 INFO L418 sIntCurrentIteration]: We unified 129 AI predicates to 129 [2018-12-03 03:11:11,962 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 03:11:11,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 03:11:11,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2018-12-03 03:11:11,962 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:11:11,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-03 03:11:11,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-03 03:11:11,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-12-03 03:11:11,963 INFO L87 Difference]: Start difference. First operand 1748 states and 2086 transitions. Second operand 14 states. [2018-12-03 03:11:12,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:11:12,958 INFO L93 Difference]: Finished difference Result 3521 states and 4218 transitions. [2018-12-03 03:11:12,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-03 03:11:12,958 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 130 [2018-12-03 03:11:12,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:11:12,962 INFO L225 Difference]: With dead ends: 3521 [2018-12-03 03:11:12,962 INFO L226 Difference]: Without dead ends: 1797 [2018-12-03 03:11:12,964 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 136 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2018-12-03 03:11:12,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2018-12-03 03:11:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1780. [2018-12-03 03:11:13,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1780 states. [2018-12-03 03:11:13,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 2115 transitions. [2018-12-03 03:11:13,017 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 2115 transitions. Word has length 130 [2018-12-03 03:11:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:11:13,017 INFO L480 AbstractCegarLoop]: Abstraction has 1780 states and 2115 transitions. [2018-12-03 03:11:13,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-03 03:11:13,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 2115 transitions. [2018-12-03 03:11:13,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-12-03 03:11:13,019 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:11:13,019 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:11:13,019 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:11:13,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:13,020 INFO L82 PathProgramCache]: Analyzing trace with hash -712719756, now seen corresponding path program 1 times [2018-12-03 03:11:13,020 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:11:13,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:13,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:13,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:13,020 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:11:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-03 03:11:13,097 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:11:13,097 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:11:13,097 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-12-03 03:11:13,097 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [61], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [103], [106], [108], [111], [114], [116], [122], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [158], [160], [161], [162], [163], [168], [170], [171], [172], [201], [204], [208], [214], [217], [221], [222], [230], [234], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [268], [269], [270], [271], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-03 03:11:13,098 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:11:13,098 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:11:14,077 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 03:11:14,077 INFO L272 AbstractInterpreter]: Visited 114 different actions 835 times. Merged at 21 different actions 79 times. Never widened. Performed 30784 root evaluator evaluations with a maximum evaluation depth of 3. Performed 30784 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 20 fixpoints after 6 different actions. Largest state had 133 variables. [2018-12-03 03:11:14,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:14,078 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 03:11:14,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:11:14,079 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/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 [2018-12-03 03:11:14,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:14,085 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 03:11:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:14,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:11:14,206 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:11:14,206 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:11:14,349 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-03 03:11:14,364 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 03:11:14,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-03 03:11:14,364 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 03:11:14,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-03 03:11:14,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-03 03:11:14,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-03 03:11:14,365 INFO L87 Difference]: Start difference. First operand 1780 states and 2115 transitions. Second operand 15 states. [2018-12-03 03:11:15,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:11:15,262 INFO L93 Difference]: Finished difference Result 2921 states and 3766 transitions. [2018-12-03 03:11:15,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-03 03:11:15,262 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 134 [2018-12-03 03:11:15,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:11:15,266 INFO L225 Difference]: With dead ends: 2921 [2018-12-03 03:11:15,266 INFO L226 Difference]: Without dead ends: 1893 [2018-12-03 03:11:15,268 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 260 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-03 03:11:15,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2018-12-03 03:11:15,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1343. [2018-12-03 03:11:15,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1343 states. [2018-12-03 03:11:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1577 transitions. [2018-12-03 03:11:15,315 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1577 transitions. Word has length 134 [2018-12-03 03:11:15,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:11:15,316 INFO L480 AbstractCegarLoop]: Abstraction has 1343 states and 1577 transitions. [2018-12-03 03:11:15,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-03 03:11:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1577 transitions. [2018-12-03 03:11:15,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-12-03 03:11:15,318 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:11:15,318 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:11:15,318 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:11:15,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:15,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1782101424, now seen corresponding path program 1 times [2018-12-03 03:11:15,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:11:15,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:15,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:15,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:15,319 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:11:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:11:15,376 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-03 03:11:15,376 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:11:15,376 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:11:15,376 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2018-12-03 03:11:15,377 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [71], [78], [81], [82], [83], [92], [96], [100], [106], [108], [114], [116], [119], [122], [125], [128], [136], [137], [138], [139], [140], [142], [147], [150], [151], [153], [158], [160], [161], [162], [163], [171], [172], [201], [204], [208], [211], [214], [217], [221], [222], [226], [227], [235], [238], [239], [240], [241], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [256], [258], [259], [260], [261], [262], [263], [266], [267], [272], [273], [274], [275], [276], [277], [280], [281], [282], [283], [284], [285], [290], [291], [292], [293], [294], [295], [296], [297], [298] [2018-12-03 03:11:15,377 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:11:15,378 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:11:15,527 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 03:11:15,527 INFO L272 AbstractInterpreter]: Visited 75 different actions 131 times. Merged at 13 different actions 13 times. Never widened. Performed 4706 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4706 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-03 03:11:15,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:15,529 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 03:11:15,665 INFO L227 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 97.2% of their original sizes. [2018-12-03 03:11:15,665 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 03:11:15,769 INFO L418 sIntCurrentIteration]: We unified 157 AI predicates to 157 [2018-12-03 03:11:15,769 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 03:11:15,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 03:11:15,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [8] total 30 [2018-12-03 03:11:15,769 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:11:15,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-12-03 03:11:15,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-12-03 03:11:15,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2018-12-03 03:11:15,770 INFO L87 Difference]: Start difference. First operand 1343 states and 1577 transitions. Second operand 24 states. [2018-12-03 03:11:17,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:11:17,979 INFO L93 Difference]: Finished difference Result 2674 states and 3170 transitions. [2018-12-03 03:11:17,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-03 03:11:17,979 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 158 [2018-12-03 03:11:17,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:11:17,982 INFO L225 Difference]: With dead ends: 2674 [2018-12-03 03:11:17,982 INFO L226 Difference]: Without dead ends: 1463 [2018-12-03 03:11:17,983 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 174 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=254, Invalid=1386, Unknown=0, NotChecked=0, Total=1640 [2018-12-03 03:11:17,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2018-12-03 03:11:18,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1426. [2018-12-03 03:11:18,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2018-12-03 03:11:18,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1669 transitions. [2018-12-03 03:11:18,029 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1669 transitions. Word has length 158 [2018-12-03 03:11:18,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:11:18,030 INFO L480 AbstractCegarLoop]: Abstraction has 1426 states and 1669 transitions. [2018-12-03 03:11:18,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-12-03 03:11:18,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1669 transitions. [2018-12-03 03:11:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-12-03 03:11:18,032 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:11:18,032 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, 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] [2018-12-03 03:11:18,032 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:11:18,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:11:18,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1364902312, now seen corresponding path program 2 times [2018-12-03 03:11:18,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:11:18,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:18,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:11:18,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:11:18,033 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:11:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 03:11:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 03:11:18,129 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 03:11:18,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:11:18 BoogieIcfgContainer [2018-12-03 03:11:18,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:11:18,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:11:18,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:11:18,232 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:11:18,233 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:10:59" (3/4) ... [2018-12-03 03:11:18,234 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-03 03:11:18,328 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9bf3dbd1-a5f9-4a55-ae90-ba09ceea44e3/bin-2019/utaipan/witness.graphml [2018-12-03 03:11:18,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:11:18,329 INFO L168 Benchmark]: Toolchain (without parser) took 19812.25 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 945.8 MB). Free memory was 951.7 MB in the beginning and 987.3 MB in the end (delta: -35.6 MB). Peak memory consumption was 910.2 MB. Max. memory is 11.5 GB. [2018-12-03 03:11:18,329 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:11:18,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-03 03:11:18,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:11:18,330 INFO L168 Benchmark]: Boogie Preprocessor took 20.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:11:18,330 INFO L168 Benchmark]: RCFGBuilder took 313.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. [2018-12-03 03:11:18,330 INFO L168 Benchmark]: TraceAbstraction took 19070.87 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 814.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.6 MB). Peak memory consumption was 824.8 MB. Max. memory is 11.5 GB. [2018-12-03 03:11:18,330 INFO L168 Benchmark]: Witness Printer took 96.17 ms. Allocated memory is still 2.0 GB. Free memory was 1.1 GB in the beginning and 987.3 MB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. [2018-12-03 03:11:18,331 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 313.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19070.87 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 814.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.6 MB). Peak memory consumption was 824.8 MB. Max. memory is 11.5 GB. * Witness Printer took 96.17 ms. Allocated memory is still 2.0 GB. Free memory was 1.1 GB in the beginning and 987.3 MB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 752]: 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; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L757] int cleanupTimeShifts = 4; [L853] int waterLevel = 1; [L854] int methaneLevelCritical = 0; [L830] int retValue_acc ; [L831] 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] [L835] 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] [L836] 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] [L837] 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] [L464] int retValue_acc ; [L467] retValue_acc = 1 [L468] 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] [L837] 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] [L837] tmp = valid_product() [L839] 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] [L841] 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] [L842] 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] [L824] 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] [L480] int splverifierCounter ; [L481] int tmp ; [L482] int tmp___0 ; [L483] int tmp___1 ; [L484] int tmp___2 ; [L487] 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] [L489] 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] [L491] 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] [L497] tmp = __VERIFIER_nondet_int() [L499] 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] [L501] 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] [L871] COND TRUE waterLevel < 2 [L872] 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] [L501] 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] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] 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] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND FALSE !(\read(tmp___2)) [L525] tmp___1 = __VERIFIER_nondet_int() [L527] 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] [L536] 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] [L562] 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] [L569] 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] [L571] 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] [L591] 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] [L594] 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] [L596] 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] [L706] int retValue_acc ; [L707] int tmp ; [L708] 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] [L712] 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] [L933] 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] [L936] COND FALSE !(waterLevel < 2) [L940] retValue_acc = 0 [L941] 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] [L712] 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] [L712] tmp = isHighWaterSensorDry() [L714] COND FALSE !(\read(tmp)) [L717] 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] [L719] retValue_acc = tmp___0 [L720] 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] [L596] 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] [L596] tmp = isHighWaterLevel() [L598] 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] [L600] 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] [L625] 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] [L629] 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] [L650] 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] [L654] 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] [L892] int retValue_acc ; [L895] retValue_acc = methaneLevelCritical [L896] 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] [L654] 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] [L654] retValue_acc = isMethaneLevelCritical() [L656] 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] [L629] 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] [L629] tmp = isMethaneAlarm() [L631] 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] [L635] 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] [L619] 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] [L635] 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] [L600] 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] [L571] 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] [L577] 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] [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] 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] [L577] 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] [L536] 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] [L489] 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] [L491] 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] [L497] tmp = __VERIFIER_nondet_int() [L499] 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] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L511] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L883] COND FALSE !(\read(methaneLevelCritical)) [L886] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L511] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND FALSE !(\read(tmp___2)) [L525] tmp___1 = __VERIFIER_nondet_int() [L527] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L536] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L562] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L564] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L859] COND TRUE waterLevel > 0 [L860] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L564] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L609] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L577] 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=1, 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=1, 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=1, pumpRunning=1, systemActive=1, waterLevel=1] [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, 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=1, 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=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L577] 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=1, pumpRunning=1, systemActive=1, waterLevel=1] [L536] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L489] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L491] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L497] tmp = __VERIFIER_nondet_int() [L499] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND FALSE !(\read(tmp___2)) [L525] tmp___1 = __VERIFIER_nondet_int() [L527] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L536] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L562] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L564] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel > 0 [L860] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L564] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L594] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L609] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L577] 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=1, 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=1, 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=1, pumpRunning=1, systemActive=1, waterLevel=0] [L924] int retValue_acc ; [L927] retValue_acc = waterLevel [L928] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, 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=1, 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=1, 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=1, pumpRunning=1, systemActive=1, waterLevel=0] [L661] int retValue_acc ; [L664] retValue_acc = pumpRunning [L665] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, 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=1, 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=1, 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=1, pumpRunning=1, systemActive=1, waterLevel=0] [L752] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 146 locations, 1 error locations. UNSAFE Result, 19.0s OverallTime, 14 OverallIterations, 3 TraceHistogramMax, 12.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2589 SDtfs, 4518 SDslu, 9393 SDs, 0 SdLazy, 5240 SolverSat, 1704 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 1421 GetRequests, 1226 SyntacticMatches, 13 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2090occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.8s AbstIntTime, 8 AbstIntIterations, 6 AbstIntStrong, 0.9977274039126747 AbsIntWeakeningRatio, 0.9163398692810457 AbsIntAvgWeakeningVarsNumRemoved, 48.97124183006536 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 1232 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1732 NumberOfCodeBlocks, 1732 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1809 ConstructedInterpolants, 0 QuantifiedInterpolants, 301904 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1654 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 312/345 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...