./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product47_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_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product47_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/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 982cd7c832ad69be85d11abb6d88a1915810e691 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 07:25:39,970 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 07:25:39,972 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 07:25:39,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 07:25:39,980 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 07:25:39,981 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 07:25:39,982 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 07:25:39,983 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 07:25:39,984 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 07:25:39,984 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 07:25:39,985 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 07:25:39,985 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 07:25:39,986 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 07:25:39,986 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 07:25:39,987 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 07:25:39,987 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 07:25:39,988 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 07:25:39,989 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 07:25:39,990 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 07:25:39,991 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 07:25:39,991 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 07:25:39,992 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 07:25:39,994 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 07:25:39,994 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 07:25:39,994 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 07:25:39,995 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 07:25:39,995 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 07:25:39,995 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 07:25:39,996 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 07:25:39,996 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 07:25:39,996 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 07:25:39,997 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 07:25:39,997 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 07:25:39,997 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 07:25:39,997 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 07:25:39,998 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 07:25:39,998 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 07:25:40,007 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 07:25:40,007 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 07:25:40,008 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 07:25:40,008 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 07:25:40,008 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 07:25:40,008 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 07:25:40,008 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 07:25:40,009 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 07:25:40,009 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 07:25:40,009 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 07:25:40,009 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 07:25:40,009 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 07:25:40,009 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 07:25:40,010 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 07:25:40,010 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 07:25:40,010 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 07:25:40,010 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 07:25:40,010 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 07:25:40,011 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 07:25:40,011 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 07:25:40,011 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 07:25:40,011 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 07:25:40,011 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 07:25:40,011 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 07:25:40,012 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 07:25:40,012 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 07:25:40,012 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 07:25:40,012 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 07:25:40,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 07:25:40,012 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 07:25:40,013 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 07:25:40,013 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 07:25:40,013 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 07:25:40,013 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 07:25:40,013 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 07:25:40,013 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 07:25:40,013 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_b73347cf-6657-4884-9689-db5a689ae564/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 -> 982cd7c832ad69be85d11abb6d88a1915810e691 [2018-12-09 07:25:40,036 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 07:25:40,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 07:25:40,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 07:25:40,046 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 07:25:40,046 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 07:25:40,046 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product47_false-unreach-call_false-termination.cil.c [2018-12-09 07:25:40,083 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/data/cb5d5692b/e3cbe89da7a444ed99145d7378e0fc99/FLAGbfc57b746 [2018-12-09 07:25:40,515 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 07:25:40,516 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/sv-benchmarks/c/product-lines/minepump_spec4_product47_false-unreach-call_false-termination.cil.c [2018-12-09 07:25:40,522 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/data/cb5d5692b/e3cbe89da7a444ed99145d7378e0fc99/FLAGbfc57b746 [2018-12-09 07:25:40,530 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/data/cb5d5692b/e3cbe89da7a444ed99145d7378e0fc99 [2018-12-09 07:25:40,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 07:25:40,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 07:25:40,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 07:25:40,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 07:25:40,535 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 07:25:40,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40, skipping insertion in model container [2018-12-09 07:25:40,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 07:25:40,562 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 07:25:40,713 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 07:25:40,768 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 07:25:40,813 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 07:25:40,828 INFO L195 MainTranslator]: Completed translation [2018-12-09 07:25:40,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40 WrapperNode [2018-12-09 07:25:40,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 07:25:40,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 07:25:40,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 07:25:40,829 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 07:25:40,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 07:25:40,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 07:25:40,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 07:25:40,850 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 07:25:40,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (1/1) ... [2018-12-09 07:25:40,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 07:25:40,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 07:25:40,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 07:25:40,873 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 07:25:40,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 07:25:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 07:25:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 07:25:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 07:25:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 07:25:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 07:25:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 07:25:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 07:25:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 07:25:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 07:25:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 07:25:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 07:25:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 07:25:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 07:25:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 07:25:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 07:25:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 07:25:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 07:25:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 07:25:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 07:25:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 07:25:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 07:25:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 07:25:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 07:25:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 07:25:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 07:25:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 07:25:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 07:25:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 07:25:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 07:25:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 07:25:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 07:25:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 07:25:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 07:25:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 07:25:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 07:25:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 07:25:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 07:25:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 07:25:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 07:25:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 07:25:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 07:25:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 07:25:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 07:25:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 07:25:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 07:25:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 07:25:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 07:25:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 07:25:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 07:25:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 07:25:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 07:25:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 07:25:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 07:25:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 07:25:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 07:25:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 07:25:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 07:25:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 07:25:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 07:25:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 07:25:41,197 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 07:25:41,197 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 07:25:41,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:25:41 BoogieIcfgContainer [2018-12-09 07:25:41,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 07:25:41,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 07:25:41,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 07:25:41,200 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 07:25:41,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:25:40" (1/3) ... [2018-12-09 07:25:41,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2fe4b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:25:41, skipping insertion in model container [2018-12-09 07:25:41,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:25:40" (2/3) ... [2018-12-09 07:25:41,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2fe4b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:25:41, skipping insertion in model container [2018-12-09 07:25:41,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:25:41" (3/3) ... [2018-12-09 07:25:41,202 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product47_false-unreach-call_false-termination.cil.c [2018-12-09 07:25:41,208 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 07:25:41,213 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 07:25:41,222 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 07:25:41,240 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 07:25:41,240 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 07:25:41,240 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 07:25:41,240 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 07:25:41,241 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 07:25:41,241 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 07:25:41,241 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 07:25:41,241 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 07:25:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2018-12-09 07:25:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 07:25:41,257 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:41,258 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:25:41,259 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:41,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:41,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1186387742, now seen corresponding path program 1 times [2018-12-09 07:25:41,264 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:41,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:41,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:41,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:41,293 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:25:41,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:25:41,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 07:25:41,401 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:25:41,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 07:25:41,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 07:25:41,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 07:25:41,414 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 2 states. [2018-12-09 07:25:41,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:41,436 INFO L93 Difference]: Finished difference Result 278 states and 345 transitions. [2018-12-09 07:25:41,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 07:25:41,437 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 07:25:41,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:41,444 INFO L225 Difference]: With dead ends: 278 [2018-12-09 07:25:41,444 INFO L226 Difference]: Without dead ends: 139 [2018-12-09 07:25:41,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 07:25:41,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-12-09 07:25:41,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-12-09 07:25:41,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-12-09 07:25:41,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2018-12-09 07:25:41,478 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 46 [2018-12-09 07:25:41,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:41,478 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2018-12-09 07:25:41,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 07:25:41,478 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2018-12-09 07:25:41,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 07:25:41,480 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:41,480 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:25:41,480 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:41,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:41,481 INFO L82 PathProgramCache]: Analyzing trace with hash 2027803890, now seen corresponding path program 1 times [2018-12-09 07:25:41,481 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:41,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:41,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:41,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:41,482 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:41,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:25:41,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:25:41,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 07:25:41,537 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:25:41,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 07:25:41,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 07:25:41,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 07:25:41,538 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand 3 states. [2018-12-09 07:25:41,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:41,551 INFO L93 Difference]: Finished difference Result 221 states and 259 transitions. [2018-12-09 07:25:41,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 07:25:41,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 07:25:41,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:41,553 INFO L225 Difference]: With dead ends: 221 [2018-12-09 07:25:41,553 INFO L226 Difference]: Without dead ends: 130 [2018-12-09 07:25:41,554 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 07:25:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-12-09 07:25:41,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-12-09 07:25:41,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-12-09 07:25:41,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2018-12-09 07:25:41,561 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 47 [2018-12-09 07:25:41,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:41,562 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2018-12-09 07:25:41,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 07:25:41,562 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2018-12-09 07:25:41,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 07:25:41,563 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:41,563 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:25:41,563 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:41,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:41,563 INFO L82 PathProgramCache]: Analyzing trace with hash -2050407400, now seen corresponding path program 1 times [2018-12-09 07:25:41,563 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:41,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:41,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:41,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:41,564 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:41,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:25:41,630 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:25:41,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 07:25:41,630 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:25:41,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 07:25:41,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 07:25:41,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 07:25:41,631 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 7 states. [2018-12-09 07:25:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:41,877 INFO L93 Difference]: Finished difference Result 392 states and 474 transitions. [2018-12-09 07:25:41,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 07:25:41,878 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 07:25:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:41,881 INFO L225 Difference]: With dead ends: 392 [2018-12-09 07:25:41,881 INFO L226 Difference]: Without dead ends: 286 [2018-12-09 07:25:41,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 07:25:41,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-12-09 07:25:41,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 278. [2018-12-09 07:25:41,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-09 07:25:41,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 336 transitions. [2018-12-09 07:25:41,911 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 336 transitions. Word has length 51 [2018-12-09 07:25:41,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:41,912 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 336 transitions. [2018-12-09 07:25:41,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 07:25:41,912 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 336 transitions. [2018-12-09 07:25:41,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 07:25:41,914 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:41,914 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:25:41,914 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:41,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:41,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1629692946, now seen corresponding path program 1 times [2018-12-09 07:25:41,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:41,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:41,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:41,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:41,916 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:42,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:25:42,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:25:42,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 07:25:42,020 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:25:42,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 07:25:42,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 07:25:42,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 07:25:42,020 INFO L87 Difference]: Start difference. First operand 278 states and 336 transitions. Second operand 10 states. [2018-12-09 07:25:42,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:42,381 INFO L93 Difference]: Finished difference Result 992 states and 1292 transitions. [2018-12-09 07:25:42,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 07:25:42,381 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-09 07:25:42,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:42,384 INFO L225 Difference]: With dead ends: 992 [2018-12-09 07:25:42,384 INFO L226 Difference]: Without dead ends: 738 [2018-12-09 07:25:42,386 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-09 07:25:42,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2018-12-09 07:25:42,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 726. [2018-12-09 07:25:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2018-12-09 07:25:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 912 transitions. [2018-12-09 07:25:42,425 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 912 transitions. Word has length 57 [2018-12-09 07:25:42,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:42,425 INFO L480 AbstractCegarLoop]: Abstraction has 726 states and 912 transitions. [2018-12-09 07:25:42,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 07:25:42,425 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 912 transitions. [2018-12-09 07:25:42,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 07:25:42,427 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:42,427 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:25:42,427 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:42,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:42,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1337067336, now seen corresponding path program 1 times [2018-12-09 07:25:42,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:42,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:42,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:42,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:42,428 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:42,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:25:42,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:25:42,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 07:25:42,483 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:25:42,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 07:25:42,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 07:25:42,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 07:25:42,484 INFO L87 Difference]: Start difference. First operand 726 states and 912 transitions. Second operand 4 states. [2018-12-09 07:25:42,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:42,696 INFO L93 Difference]: Finished difference Result 1870 states and 2535 transitions. [2018-12-09 07:25:42,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 07:25:42,696 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-09 07:25:42,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:42,700 INFO L225 Difference]: With dead ends: 1870 [2018-12-09 07:25:42,700 INFO L226 Difference]: Without dead ends: 1168 [2018-12-09 07:25:42,701 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 07:25:42,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2018-12-09 07:25:42,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1033. [2018-12-09 07:25:42,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1033 states. [2018-12-09 07:25:42,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1286 transitions. [2018-12-09 07:25:42,739 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1286 transitions. Word has length 61 [2018-12-09 07:25:42,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:42,740 INFO L480 AbstractCegarLoop]: Abstraction has 1033 states and 1286 transitions. [2018-12-09 07:25:42,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 07:25:42,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1286 transitions. [2018-12-09 07:25:42,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 07:25:42,741 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:42,741 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] [2018-12-09 07:25:42,742 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:42,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:42,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1864644134, now seen corresponding path program 1 times [2018-12-09 07:25:42,742 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:42,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:42,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:42,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:42,743 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 07:25:42,795 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:25:42,795 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 07:25:42,795 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-12-09 07:25:42,797 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [61], [63], [64], [65], [66], [67], [102], [111], [115], [119], [122], [127], [133], [135], [138], [140], [143], [156], [157], [169], [170], [196], [203], [206], [240], [246], [250], [251], [254], [255], [256], [257], [258], [260], [261], [262], [263], [264], [265], [266], [267], [268], [280], [292], [293], [296], [297], [298], [299], [312], [313], [318], [319], [320] [2018-12-09 07:25:42,822 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 07:25:42,822 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 07:25:43,265 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 07:25:43,266 INFO L272 AbstractInterpreter]: Visited 67 different actions 137 times. Merged at 13 different actions 19 times. Never widened. Performed 5095 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5095 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 07:25:43,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:43,272 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 07:25:43,272 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:25:43,272 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 07:25:43,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:43,280 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 07:25:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:43,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 07:25:43,413 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 07:25:43,414 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 07:25:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 07:25:43,584 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 07:25:43,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-09 07:25:43,584 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 07:25:43,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 07:25:43,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 07:25:43,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-09 07:25:43,585 INFO L87 Difference]: Start difference. First operand 1033 states and 1286 transitions. Second operand 12 states. [2018-12-09 07:25:45,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:45,367 INFO L93 Difference]: Finished difference Result 2426 states and 3263 transitions. [2018-12-09 07:25:45,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-12-09 07:25:45,367 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2018-12-09 07:25:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:45,371 INFO L225 Difference]: With dead ends: 2426 [2018-12-09 07:25:45,371 INFO L226 Difference]: Without dead ends: 1687 [2018-12-09 07:25:45,373 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 180 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-12-09 07:25:45,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2018-12-09 07:25:45,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1487. [2018-12-09 07:25:45,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1487 states. [2018-12-09 07:25:45,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1873 transitions. [2018-12-09 07:25:45,423 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1873 transitions. Word has length 88 [2018-12-09 07:25:45,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:45,423 INFO L480 AbstractCegarLoop]: Abstraction has 1487 states and 1873 transitions. [2018-12-09 07:25:45,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 07:25:45,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1873 transitions. [2018-12-09 07:25:45,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-09 07:25:45,426 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:45,426 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:25:45,426 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:45,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:45,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1860252076, now seen corresponding path program 1 times [2018-12-09 07:25:45,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:45,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:45,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:45,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:45,427 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:45,473 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 07:25:45,473 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:25:45,473 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 07:25:45,473 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-12-09 07:25:45,473 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [65], [66], [67], [70], [72], [73], [76], [79], [81], [82], [85], [87], [93], [97], [100], [101], [102], [111], [115], [119], [125], [127], [133], [135], [138], [154], [155], [156], [157], [158], [160], [165], [168], [169], [170], [171], [173], [176], [180], [181], [189], [190], [193], [196], [200], [206], [235], [239], [240], [251], [254], [255], [256], [257], [258], [260], [261], [262], [263], [264], [265], [266], [267], [268], [270], [271], [272], [273], [276], [277], [280], [282], [283], [284], [285], [288], [289], [290], [291], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320] [2018-12-09 07:25:45,475 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 07:25:45,475 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 07:25:45,561 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 07:25:45,561 INFO L272 AbstractInterpreter]: Visited 58 different actions 58 times. Never merged. Never widened. Performed 1948 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1948 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 07:25:45,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:45,570 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 07:25:45,710 INFO L227 lantSequenceWeakener]: Weakened 67 states. On average, predicates are now at 96.45% of their original sizes. [2018-12-09 07:25:45,710 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 07:25:45,772 INFO L418 sIntCurrentIteration]: We unified 144 AI predicates to 144 [2018-12-09 07:25:45,772 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 07:25:45,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 07:25:45,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-12-09 07:25:45,772 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:25:45,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-09 07:25:45,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-09 07:25:45,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-12-09 07:25:45,773 INFO L87 Difference]: Start difference. First operand 1487 states and 1873 transitions. Second operand 13 states. [2018-12-09 07:25:47,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:47,209 INFO L93 Difference]: Finished difference Result 3113 states and 3930 transitions. [2018-12-09 07:25:47,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 07:25:47,210 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 145 [2018-12-09 07:25:47,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:47,217 INFO L225 Difference]: With dead ends: 3113 [2018-12-09 07:25:47,217 INFO L226 Difference]: Without dead ends: 1650 [2018-12-09 07:25:47,220 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-12-09 07:25:47,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2018-12-09 07:25:47,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1639. [2018-12-09 07:25:47,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2018-12-09 07:25:47,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2050 transitions. [2018-12-09 07:25:47,312 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2050 transitions. Word has length 145 [2018-12-09 07:25:47,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:47,312 INFO L480 AbstractCegarLoop]: Abstraction has 1639 states and 2050 transitions. [2018-12-09 07:25:47,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-09 07:25:47,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2050 transitions. [2018-12-09 07:25:47,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-09 07:25:47,315 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:47,315 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:25:47,316 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:47,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:47,316 INFO L82 PathProgramCache]: Analyzing trace with hash -328298863, now seen corresponding path program 1 times [2018-12-09 07:25:47,316 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:47,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:47,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:47,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:47,316 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 07:25:47,369 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:25:47,370 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 07:25:47,370 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-12-09 07:25:47,370 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [65], [66], [67], [70], [72], [73], [76], [80], [81], [82], [85], [87], [93], [97], [100], [101], [102], [111], [115], [119], [122], [125], [127], [133], [135], [138], [154], [155], [156], [157], [158], [160], [165], [168], [169], [170], [171], [173], [176], [180], [181], [189], [190], [193], [196], [200], [206], [235], [239], [240], [246], [250], [251], [254], [255], [256], [257], [258], [260], [261], [262], [263], [264], [265], [266], [267], [268], [270], [271], [272], [273], [276], [277], [280], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320] [2018-12-09 07:25:47,372 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 07:25:47,372 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 07:25:47,533 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 07:25:47,533 INFO L272 AbstractInterpreter]: Visited 63 different actions 84 times. Merged at 5 different actions 5 times. Never widened. Performed 4643 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4643 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 07:25:47,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:47,534 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 07:25:47,681 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.49% of their original sizes. [2018-12-09 07:25:47,681 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 07:25:47,754 INFO L418 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2018-12-09 07:25:47,754 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 07:25:47,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 07:25:47,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 17 [2018-12-09 07:25:47,754 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:25:47,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 07:25:47,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 07:25:47,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-12-09 07:25:47,755 INFO L87 Difference]: Start difference. First operand 1639 states and 2050 transitions. Second operand 14 states. [2018-12-09 07:25:50,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:50,466 INFO L93 Difference]: Finished difference Result 3518 states and 4517 transitions. [2018-12-09 07:25:50,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 07:25:50,466 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 149 [2018-12-09 07:25:50,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:50,471 INFO L225 Difference]: With dead ends: 3518 [2018-12-09 07:25:50,471 INFO L226 Difference]: Without dead ends: 2331 [2018-12-09 07:25:50,473 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2018-12-09 07:25:50,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2018-12-09 07:25:50,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2288. [2018-12-09 07:25:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2288 states. [2018-12-09 07:25:50,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2288 states to 2288 states and 2868 transitions. [2018-12-09 07:25:50,544 INFO L78 Accepts]: Start accepts. Automaton has 2288 states and 2868 transitions. Word has length 149 [2018-12-09 07:25:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:50,544 INFO L480 AbstractCegarLoop]: Abstraction has 2288 states and 2868 transitions. [2018-12-09 07:25:50,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 07:25:50,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 2868 transitions. [2018-12-09 07:25:50,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-09 07:25:50,547 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:50,547 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:25:50,547 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:50,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:50,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1385030065, now seen corresponding path program 1 times [2018-12-09 07:25:50,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:50,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:50,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:50,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:50,548 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:50,641 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-09 07:25:50,641 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:25:50,641 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 07:25:50,641 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-12-09 07:25:50,641 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [65], [66], [67], [70], [72], [73], [76], [80], [81], [82], [85], [87], [93], [97], [100], [101], [102], [111], [115], [119], [122], [125], [127], [133], [135], [138], [154], [155], [156], [157], [158], [160], [165], [168], [169], [170], [171], [173], [178], [180], [181], [189], [190], [193], [196], [200], [206], [235], [239], [240], [246], [250], [251], [254], [255], [256], [257], [258], [260], [261], [262], [263], [264], [265], [266], [267], [268], [270], [271], [272], [273], [276], [277], [280], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320] [2018-12-09 07:25:50,643 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 07:25:50,643 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 07:25:51,228 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 07:25:51,228 INFO L272 AbstractInterpreter]: Visited 120 different actions 576 times. Merged at 15 different actions 42 times. Never widened. Performed 18762 root evaluator evaluations with a maximum evaluation depth of 3. Performed 18762 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-09 07:25:51,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:51,230 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 07:25:51,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:25:51,230 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 07:25:51,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:51,236 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 07:25:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:51,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 07:25:51,366 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:25:51,366 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 07:25:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-09 07:25:51,542 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 07:25:51,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-09 07:25:51,542 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 07:25:51,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 07:25:51,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 07:25:51,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-09 07:25:51,543 INFO L87 Difference]: Start difference. First operand 2288 states and 2868 transitions. Second operand 15 states. [2018-12-09 07:25:52,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:52,463 INFO L93 Difference]: Finished difference Result 4529 states and 6147 transitions. [2018-12-09 07:25:52,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 07:25:52,463 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 149 [2018-12-09 07:25:52,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:52,473 INFO L225 Difference]: With dead ends: 4529 [2018-12-09 07:25:52,473 INFO L226 Difference]: Without dead ends: 2705 [2018-12-09 07:25:52,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 290 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-09 07:25:52,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2018-12-09 07:25:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2077. [2018-12-09 07:25:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2077 states. [2018-12-09 07:25:52,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2594 transitions. [2018-12-09 07:25:52,565 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2594 transitions. Word has length 149 [2018-12-09 07:25:52,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:52,566 INFO L480 AbstractCegarLoop]: Abstraction has 2077 states and 2594 transitions. [2018-12-09 07:25:52,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 07:25:52,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2594 transitions. [2018-12-09 07:25:52,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-09 07:25:52,569 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:52,569 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:25:52,569 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:52,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:52,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1081639056, now seen corresponding path program 1 times [2018-12-09 07:25:52,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:52,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:52,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:52,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:52,570 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:52,618 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 07:25:52,619 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:25:52,619 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 07:25:52,619 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-12-09 07:25:52,619 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [65], [66], [67], [70], [72], [73], [76], [79], [81], [82], [85], [87], [93], [97], [100], [101], [102], [111], [115], [119], [125], [127], [130], [133], [135], [138], [154], [155], [156], [157], [158], [160], [165], [168], [169], [170], [171], [173], [176], [180], [181], [186], [188], [189], [190], [193], [196], [200], [206], [235], [239], [240], [251], [254], [255], [256], [257], [258], [260], [261], [262], [263], [264], [265], [266], [267], [268], [270], [271], [272], [273], [276], [277], [280], [282], [283], [284], [285], [288], [289], [290], [291], [294], [295], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320] [2018-12-09 07:25:52,621 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 07:25:52,621 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 07:25:52,760 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 07:25:52,760 INFO L272 AbstractInterpreter]: Visited 63 different actions 91 times. Merged at 3 different actions 3 times. Never widened. Performed 4650 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4650 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 07:25:52,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:52,761 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 07:25:52,875 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.44% of their original sizes. [2018-12-09 07:25:52,876 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 07:25:52,971 INFO L418 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2018-12-09 07:25:52,971 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 07:25:52,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 07:25:52,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-12-09 07:25:52,972 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:25:52,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-09 07:25:52,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-09 07:25:52,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-12-09 07:25:52,972 INFO L87 Difference]: Start difference. First operand 2077 states and 2594 transitions. Second operand 16 states. [2018-12-09 07:25:55,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:55,089 INFO L93 Difference]: Finished difference Result 3545 states and 4451 transitions. [2018-12-09 07:25:55,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-09 07:25:55,089 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 149 [2018-12-09 07:25:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:55,094 INFO L225 Difference]: With dead ends: 3545 [2018-12-09 07:25:55,094 INFO L226 Difference]: Without dead ends: 2196 [2018-12-09 07:25:55,096 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 163 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2018-12-09 07:25:55,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2018-12-09 07:25:55,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2177. [2018-12-09 07:25:55,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2177 states. [2018-12-09 07:25:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2177 states to 2177 states and 2701 transitions. [2018-12-09 07:25:55,168 INFO L78 Accepts]: Start accepts. Automaton has 2177 states and 2701 transitions. Word has length 149 [2018-12-09 07:25:55,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:55,168 INFO L480 AbstractCegarLoop]: Abstraction has 2177 states and 2701 transitions. [2018-12-09 07:25:55,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-09 07:25:55,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2177 states and 2701 transitions. [2018-12-09 07:25:55,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-12-09 07:25:55,171 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:55,172 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 07:25:55,172 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:55,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:55,172 INFO L82 PathProgramCache]: Analyzing trace with hash -9715969, now seen corresponding path program 1 times [2018-12-09 07:25:55,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:55,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:55,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:55,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:55,173 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:55,216 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 34 proven. 4 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-12-09 07:25:55,216 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:25:55,216 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 07:25:55,216 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-12-09 07:25:55,216 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [48], [52], [55], [61], [63], [64], [65], [66], [67], [70], [72], [73], [76], [79], [81], [82], [85], [87], [93], [97], [100], [101], [102], [111], [115], [119], [125], [127], [133], [135], [138], [140], [143], [154], [155], [156], [157], [158], [160], [165], [168], [169], [170], [171], [173], [176], [180], [181], [189], [190], [193], [196], [200], [206], [235], [239], [240], [251], [254], [255], [256], [257], [258], [260], [261], [262], [263], [264], [265], [266], [267], [268], [270], [271], [272], [273], [274], [275], [276], [277], [280], [282], [283], [284], [285], [288], [289], [290], [291], [296], [297], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320] [2018-12-09 07:25:55,218 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 07:25:55,218 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 07:25:55,344 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 07:25:55,344 INFO L272 AbstractInterpreter]: Visited 86 different actions 133 times. Merged at 1 different actions 1 times. Never widened. Performed 3894 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3894 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 133 variables. [2018-12-09 07:25:55,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:55,346 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 07:25:55,531 INFO L227 lantSequenceWeakener]: Weakened 149 states. On average, predicates are now at 96.72% of their original sizes. [2018-12-09 07:25:55,532 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 07:25:55,696 INFO L418 sIntCurrentIteration]: We unified 200 AI predicates to 200 [2018-12-09 07:25:55,696 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 07:25:55,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 07:25:55,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [31] imperfect sequences [4] total 33 [2018-12-09 07:25:55,697 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:25:55,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-12-09 07:25:55,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-12-09 07:25:55,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=781, Unknown=0, NotChecked=0, Total=930 [2018-12-09 07:25:55,697 INFO L87 Difference]: Start difference. First operand 2177 states and 2701 transitions. Second operand 31 states. [2018-12-09 07:25:57,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:25:57,907 INFO L93 Difference]: Finished difference Result 3318 states and 4127 transitions. [2018-12-09 07:25:57,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-09 07:25:57,907 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 201 [2018-12-09 07:25:57,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:25:57,913 INFO L225 Difference]: With dead ends: 3318 [2018-12-09 07:25:57,913 INFO L226 Difference]: Without dead ends: 2236 [2018-12-09 07:25:57,916 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=1561, Unknown=0, NotChecked=0, Total=1806 [2018-12-09 07:25:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2018-12-09 07:25:57,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2212. [2018-12-09 07:25:57,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2212 states. [2018-12-09 07:25:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2212 states to 2212 states and 2743 transitions. [2018-12-09 07:25:57,998 INFO L78 Accepts]: Start accepts. Automaton has 2212 states and 2743 transitions. Word has length 201 [2018-12-09 07:25:57,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:25:57,998 INFO L480 AbstractCegarLoop]: Abstraction has 2212 states and 2743 transitions. [2018-12-09 07:25:57,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-12-09 07:25:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2212 states and 2743 transitions. [2018-12-09 07:25:58,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-12-09 07:25:58,002 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:25:58,002 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 07:25:58,002 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:25:58,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:58,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1914564803, now seen corresponding path program 1 times [2018-12-09 07:25:58,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:25:58,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:58,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:25:58,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:25:58,003 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:25:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:25:58,045 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 34 proven. 4 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-12-09 07:25:58,045 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:25:58,045 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 07:25:58,045 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-12-09 07:25:58,046 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [48], [52], [55], [61], [63], [64], [65], [66], [67], [70], [72], [73], [76], [79], [81], [82], [85], [87], [93], [97], [100], [101], [102], [111], [115], [119], [125], [127], [130], [133], [135], [138], [140], [143], [154], [155], [156], [157], [158], [160], [165], [168], [169], [170], [171], [173], [176], [180], [181], [186], [188], [189], [190], [193], [196], [200], [206], [235], [239], [240], [251], [254], [255], [256], [257], [258], [260], [261], [262], [263], [264], [265], [266], [267], [268], [270], [271], [272], [273], [274], [275], [276], [277], [280], [282], [283], [284], [285], [288], [289], [290], [291], [294], [295], [296], [297], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320] [2018-12-09 07:25:58,047 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 07:25:58,047 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 07:25:58,409 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 07:25:58,409 INFO L272 AbstractInterpreter]: Visited 91 different actions 272 times. Merged at 14 different actions 25 times. Never widened. Performed 11036 root evaluator evaluations with a maximum evaluation depth of 3. Performed 11036 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 5 different actions. Largest state had 133 variables. [2018-12-09 07:25:58,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:25:58,411 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 07:25:58,584 INFO L227 lantSequenceWeakener]: Weakened 153 states. On average, predicates are now at 97.31% of their original sizes. [2018-12-09 07:25:58,584 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 07:25:58,758 INFO L418 sIntCurrentIteration]: We unified 204 AI predicates to 204 [2018-12-09 07:25:58,758 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 07:25:58,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 07:25:58,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [32] imperfect sequences [4] total 34 [2018-12-09 07:25:58,759 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:25:58,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-12-09 07:25:58,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-12-09 07:25:58,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=856, Unknown=0, NotChecked=0, Total=992 [2018-12-09 07:25:58,760 INFO L87 Difference]: Start difference. First operand 2212 states and 2743 transitions. Second operand 32 states. [2018-12-09 07:26:01,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:26:01,622 INFO L93 Difference]: Finished difference Result 2905 states and 3627 transitions. [2018-12-09 07:26:01,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-12-09 07:26:01,622 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 205 [2018-12-09 07:26:01,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:26:01,625 INFO L225 Difference]: With dead ends: 2905 [2018-12-09 07:26:01,626 INFO L226 Difference]: Without dead ends: 1928 [2018-12-09 07:26:01,628 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 238 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=468, Invalid=3822, Unknown=0, NotChecked=0, Total=4290 [2018-12-09 07:26:01,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2018-12-09 07:26:01,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1909. [2018-12-09 07:26:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1909 states. [2018-12-09 07:26:01,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2375 transitions. [2018-12-09 07:26:01,687 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2375 transitions. Word has length 205 [2018-12-09 07:26:01,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:26:01,688 INFO L480 AbstractCegarLoop]: Abstraction has 1909 states and 2375 transitions. [2018-12-09 07:26:01,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-12-09 07:26:01,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2375 transitions. [2018-12-09 07:26:01,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-12-09 07:26:01,691 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:26:01,691 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 07:26:01,691 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:26:01,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:26:01,692 INFO L82 PathProgramCache]: Analyzing trace with hash 521357655, now seen corresponding path program 1 times [2018-12-09 07:26:01,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:26:01,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:26:01,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:26:01,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:26:01,692 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:26:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:26:01,740 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 34 proven. 11 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-12-09 07:26:01,741 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:26:01,741 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 07:26:01,741 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-12-09 07:26:01,741 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [65], [66], [67], [70], [72], [73], [76], [80], [81], [82], [85], [87], [93], [97], [100], [101], [102], [111], [115], [119], [122], [125], [127], [130], [133], [135], [138], [154], [155], [156], [157], [158], [160], [165], [168], [169], [170], [171], [173], [176], [180], [181], [186], [188], [189], [190], [193], [196], [200], [206], [235], [239], [240], [246], [250], [251], [254], [255], [256], [257], [258], [260], [261], [262], [263], [264], [265], [266], [267], [268], [270], [271], [272], [273], [276], [277], [280], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [294], [295], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320] [2018-12-09 07:26:01,742 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 07:26:01,743 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 07:26:01,922 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 07:26:01,922 INFO L272 AbstractInterpreter]: Visited 68 different actions 122 times. Merged at 7 different actions 9 times. Never widened. Performed 5953 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5953 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 132 variables. [2018-12-09 07:26:01,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:26:01,926 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 07:26:02,034 INFO L227 lantSequenceWeakener]: Weakened 89 states. On average, predicates are now at 96.79% of their original sizes. [2018-12-09 07:26:02,035 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 07:26:02,095 INFO L418 sIntCurrentIteration]: We unified 203 AI predicates to 203 [2018-12-09 07:26:02,095 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 07:26:02,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 07:26:02,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2018-12-09 07:26:02,095 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:26:02,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-09 07:26:02,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-09 07:26:02,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2018-12-09 07:26:02,096 INFO L87 Difference]: Start difference. First operand 1909 states and 2375 transitions. Second operand 16 states. [2018-12-09 07:26:04,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:26:04,946 INFO L93 Difference]: Finished difference Result 3779 states and 4734 transitions. [2018-12-09 07:26:04,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-12-09 07:26:04,946 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 204 [2018-12-09 07:26:04,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:26:04,951 INFO L225 Difference]: With dead ends: 3779 [2018-12-09 07:26:04,952 INFO L226 Difference]: Without dead ends: 2706 [2018-12-09 07:26:04,953 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 221 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=219, Invalid=903, Unknown=0, NotChecked=0, Total=1122 [2018-12-09 07:26:04,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2018-12-09 07:26:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 2618. [2018-12-09 07:26:05,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2618 states. [2018-12-09 07:26:05,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2618 states to 2618 states and 3202 transitions. [2018-12-09 07:26:05,040 INFO L78 Accepts]: Start accepts. Automaton has 2618 states and 3202 transitions. Word has length 204 [2018-12-09 07:26:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:26:05,041 INFO L480 AbstractCegarLoop]: Abstraction has 2618 states and 3202 transitions. [2018-12-09 07:26:05,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-09 07:26:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2618 states and 3202 transitions. [2018-12-09 07:26:05,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-12-09 07:26:05,045 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:26:05,045 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:26:05,045 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:26:05,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:26:05,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1221760541, now seen corresponding path program 2 times [2018-12-09 07:26:05,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:26:05,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:26:05,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:26:05,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:26:05,046 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:26:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 07:26:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 07:26:05,168 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 07:26:05,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:26:05 BoogieIcfgContainer [2018-12-09 07:26:05,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 07:26:05,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 07:26:05,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 07:26:05,277 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 07:26:05,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:25:41" (3/4) ... [2018-12-09 07:26:05,279 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 07:26:05,379 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b73347cf-6657-4884-9689-db5a689ae564/bin-2019/utaipan/witness.graphml [2018-12-09 07:26:05,379 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 07:26:05,380 INFO L168 Benchmark]: Toolchain (without parser) took 24847.59 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 971.5 MB). Free memory was 948.1 MB in the beginning and 1.5 GB in the end (delta: -540.1 MB). Peak memory consumption was 431.4 MB. Max. memory is 11.5 GB. [2018-12-09 07:26:05,381 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 07:26:05,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-12-09 07:26:05,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.86 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. [2018-12-09 07:26:05,381 INFO L168 Benchmark]: Boogie Preprocessor took 22.98 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 07:26:05,381 INFO L168 Benchmark]: RCFGBuilder took 324.59 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: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2018-12-09 07:26:05,381 INFO L168 Benchmark]: TraceAbstraction took 24078.97 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 849.3 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -494.6 MB). Peak memory consumption was 354.7 MB. Max. memory is 11.5 GB. [2018-12-09 07:26:05,381 INFO L168 Benchmark]: Witness Printer took 102.21 ms. Allocated memory is still 2.0 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2018-12-09 07:26:05,382 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.86 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 22.98 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 324.59 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: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24078.97 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 849.3 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -494.6 MB). Peak memory consumption was 354.7 MB. Max. memory is 11.5 GB. * Witness Printer took 102.21 ms. Allocated memory is still 2.0 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 828]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L219] int pumpRunning = 0; [L220] int systemActive = 1; [L599] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L868] int waterLevel = 1; [L869] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L146] int splverifierCounter ; [L147] int tmp ; [L148] int tmp___0 ; [L149] int tmp___1 ; [L150] int tmp___2 ; [L153] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L155] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L157] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L163] tmp = __VERIFIER_nondet_int() [L165] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L167] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] COND TRUE waterLevel < 2 [L887] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND 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] [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) 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___2=1, waterLevel=2] [L200] 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] [L227] 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] [L234] 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] [L236] 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] [L282] 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] [L285] 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] [L300] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L256] 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] [L259] 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] [L261] 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] [L396] int retValue_acc ; [L397] int tmp ; [L398] 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] [L402] 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] [L948] 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] [L951] COND FALSE !(waterLevel < 2) [L955] retValue_acc = 0 [L956] 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] [L402] 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] [L402] tmp = isHighWaterSensorDry() [L404] COND FALSE !(\read(tmp)) [L407] 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] [L409] retValue_acc = tmp___0 [L410] 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] [L261] 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] [L261] tmp = isHighWaterLevel() [L263] 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] [L265] 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] [L315] 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] [L319] 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] [L340] 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] [L344] 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] [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] 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] [L344] 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] [L344] retValue_acc = isMethaneLevelCritical() [L346] 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] [L319] 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] [L319] tmp = isMethaneAlarm() [L321] 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] [L325] 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] [L310] 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] [L325] 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] [L265] 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] [L300] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L236] 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] [L242] 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] [L799] int tmp ; [L800] 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] [L804] 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] [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] 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] [L804] 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] [L804] tmp = getWaterLevel() [L806] 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] [L242] 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] [L200] 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___2=1, waterLevel=2] [L155] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L157] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L163] tmp = __VERIFIER_nondet_int() [L165] 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___2=1, waterLevel=2] [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) 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___2=1, waterLevel=2] [L200] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L227] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L229] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L874] COND TRUE waterLevel > 0 [L875] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L229] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L234] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L236] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L282] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L285] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L287] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L340] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L344] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L344] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L287] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L287] tmp = isMethaneAlarm() [L289] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L295] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L256] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L259] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L274] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L295] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L236] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L242] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L799] int tmp ; [L800] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L804] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L804] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L804] tmp = getWaterLevel() [L806] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L242] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L200] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L155] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L157] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L163] tmp = __VERIFIER_nondet_int() [L165] 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___2=1, waterLevel=1] [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) 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___2=1, waterLevel=1] [L200] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L227] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L229] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L874] COND TRUE waterLevel > 0 [L875] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L229] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L234] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L236] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L282] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L285] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L287] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L340] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L344] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L344] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L287] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L287] tmp = isMethaneAlarm() [L289] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L295] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L256] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L259] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L274] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L295] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L236] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L242] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L799] int tmp ; [L800] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L804] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L804] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L804] tmp = getWaterLevel() [L806] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L808] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L351] int retValue_acc ; [L354] retValue_acc = pumpRunning [L355] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L808] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L808] tmp___0 = isPumpRunning() [L810] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L812] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L828] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 152 locations, 1 error locations. UNSAFE Result, 24.0s OverallTime, 14 OverallIterations, 3 TraceHistogramMax, 17.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2728 SDtfs, 4989 SDslu, 11158 SDs, 0 SdLazy, 8359 SolverSat, 2296 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 1758 GetRequests, 1429 SyntacticMatches, 15 SemanticMatches, 314 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3250 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2618occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.1s AbstIntTime, 8 AbstIntIterations, 6 AbstIntStrong, 0.9977538391992639 AbsIntWeakeningRatio, 0.7956064947468959 AbsIntAvgWeakeningVarsNumRemoved, 53.21107927411652 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 1187 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1989 NumberOfCodeBlocks, 1989 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2009 ConstructedInterpolants, 0 QuantifiedInterpolants, 403729 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1581 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 565/634 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...