./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product45_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_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product45_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/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 a9369a06c8d4df60e49baaf177cf32aba3e52d93 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-02 21:08:17,102 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 21:08:17,103 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 21:08:17,109 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 21:08:17,110 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 21:08:17,110 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 21:08:17,111 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 21:08:17,112 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 21:08:17,113 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 21:08:17,113 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 21:08:17,114 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 21:08:17,114 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 21:08:17,114 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 21:08:17,115 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 21:08:17,116 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 21:08:17,116 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 21:08:17,117 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 21:08:17,117 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 21:08:17,118 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 21:08:17,119 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 21:08:17,120 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 21:08:17,120 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 21:08:17,121 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 21:08:17,122 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 21:08:17,122 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 21:08:17,122 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 21:08:17,123 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 21:08:17,123 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 21:08:17,124 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 21:08:17,124 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 21:08:17,124 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 21:08:17,125 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 21:08:17,125 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 21:08:17,125 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 21:08:17,126 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 21:08:17,126 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 21:08:17,126 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 21:08:17,134 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 21:08:17,134 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 21:08:17,134 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 21:08:17,134 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 21:08:17,135 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 21:08:17,135 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 21:08:17,135 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 21:08:17,135 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 21:08:17,135 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 21:08:17,135 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 21:08:17,135 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 21:08:17,135 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 21:08:17,135 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 21:08:17,136 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 21:08:17,136 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 21:08:17,136 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 21:08:17,136 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 21:08:17,136 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 21:08:17,137 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 21:08:17,137 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 21:08:17,137 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 21:08:17,137 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 21:08:17,137 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 21:08:17,137 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 21:08:17,137 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 21:08:17,137 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 21:08:17,138 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 21:08:17,138 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 21:08:17,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:08:17,138 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 21:08:17,138 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 21:08:17,138 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 21:08:17,138 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 21:08:17,138 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 21:08:17,139 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 21:08:17,139 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 21:08:17,139 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_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/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 -> a9369a06c8d4df60e49baaf177cf32aba3e52d93 [2018-12-02 21:08:17,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 21:08:17,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 21:08:17,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 21:08:17,168 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 21:08:17,168 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 21:08:17,169 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product45_false-unreach-call_false-termination.cil.c [2018-12-02 21:08:17,205 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/data/7fdfc4048/a65453c49b324b33a54b962f2d5a54f5/FLAG809a2f0c3 [2018-12-02 21:08:17,611 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 21:08:17,612 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/sv-benchmarks/c/product-lines/minepump_spec4_product45_false-unreach-call_false-termination.cil.c [2018-12-02 21:08:17,618 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/data/7fdfc4048/a65453c49b324b33a54b962f2d5a54f5/FLAG809a2f0c3 [2018-12-02 21:08:17,626 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/data/7fdfc4048/a65453c49b324b33a54b962f2d5a54f5 [2018-12-02 21:08:17,628 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 21:08:17,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 21:08:17,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 21:08:17,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 21:08:17,631 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 21:08:17,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d622ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17, skipping insertion in model container [2018-12-02 21:08:17,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 21:08:17,657 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 21:08:17,801 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:08:17,845 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 21:08:17,886 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:08:17,902 INFO L195 MainTranslator]: Completed translation [2018-12-02 21:08:17,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17 WrapperNode [2018-12-02 21:08:17,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 21:08:17,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 21:08:17,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 21:08:17,903 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 21:08:17,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 21:08:17,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 21:08:17,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 21:08:17,923 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 21:08:17,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (1/1) ... [2018-12-02 21:08:17,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 21:08:17,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 21:08:17,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 21:08:17,949 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 21:08:17,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/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 [2018-12-02 21:08:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 21:08:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 21:08:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-02 21:08:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-02 21:08:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 21:08:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 21:08:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 21:08:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 21:08:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 21:08:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 21:08:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 21:08:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 21:08:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 21:08:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 21:08:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 21:08:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 21:08:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 21:08:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 21:08:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 21:08:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 21:08:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 21:08:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 21:08:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 21:08:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 21:08:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 21:08:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 21:08:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 21:08:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 21:08:17,986 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 21:08:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 21:08:17,986 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 21:08:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 21:08:17,986 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 21:08:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 21:08:17,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 21:08:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 21:08:17,986 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 21:08:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 21:08:17,986 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 21:08:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 21:08:17,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 21:08:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 21:08:17,987 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 21:08:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 21:08:17,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 21:08:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 21:08:17,987 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 21:08:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-02 21:08:17,987 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-02 21:08:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 21:08:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 21:08:17,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 21:08:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 21:08:17,987 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 21:08:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 21:08:17,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 21:08:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 21:08:17,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 21:08:18,250 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 21:08:18,250 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 21:08:18,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:08:18 BoogieIcfgContainer [2018-12-02 21:08:18,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 21:08:18,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 21:08:18,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 21:08:18,253 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 21:08:18,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:08:17" (1/3) ... [2018-12-02 21:08:18,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5266a9d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:08:18, skipping insertion in model container [2018-12-02 21:08:18,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:17" (2/3) ... [2018-12-02 21:08:18,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5266a9d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:08:18, skipping insertion in model container [2018-12-02 21:08:18,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:08:18" (3/3) ... [2018-12-02 21:08:18,255 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45_false-unreach-call_false-termination.cil.c [2018-12-02 21:08:18,262 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 21:08:18,267 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 21:08:18,277 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 21:08:18,296 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 21:08:18,296 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 21:08:18,296 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 21:08:18,296 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 21:08:18,296 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 21:08:18,296 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 21:08:18,297 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 21:08:18,297 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 21:08:18,309 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2018-12-02 21:08:18,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 21:08:18,314 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:18,315 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] [2018-12-02 21:08:18,316 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:18,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:18,320 INFO L82 PathProgramCache]: Analyzing trace with hash 536400496, now seen corresponding path program 1 times [2018-12-02 21:08:18,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:18,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:18,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:18,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:18,352 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:18,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:08:18,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:08:18,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 21:08:18,465 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:08:18,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 21:08:18,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 21:08:18,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 21:08:18,477 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2018-12-02 21:08:18,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:18,500 INFO L93 Difference]: Finished difference Result 266 states and 329 transitions. [2018-12-02 21:08:18,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 21:08:18,501 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 21:08:18,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:18,508 INFO L225 Difference]: With dead ends: 266 [2018-12-02 21:08:18,508 INFO L226 Difference]: Without dead ends: 133 [2018-12-02 21:08:18,511 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 [2018-12-02 21:08:18,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-12-02 21:08:18,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-12-02 21:08:18,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-12-02 21:08:18,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2018-12-02 21:08:18,541 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 46 [2018-12-02 21:08:18,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:18,542 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2018-12-02 21:08:18,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 21:08:18,542 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2018-12-02 21:08:18,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 21:08:18,543 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:18,544 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] [2018-12-02 21:08:18,544 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:18,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:18,544 INFO L82 PathProgramCache]: Analyzing trace with hash 524325626, now seen corresponding path program 1 times [2018-12-02 21:08:18,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:18,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:18,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:18,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:18,545 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:18,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:08:18,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:08:18,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 21:08:18,596 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:08:18,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 21:08:18,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 21:08:18,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 21:08:18,598 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 3 states. [2018-12-02 21:08:18,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:18,611 INFO L93 Difference]: Finished difference Result 215 states and 251 transitions. [2018-12-02 21:08:18,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 21:08:18,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 21:08:18,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:18,612 INFO L225 Difference]: With dead ends: 215 [2018-12-02 21:08:18,612 INFO L226 Difference]: Without dead ends: 124 [2018-12-02 21:08:18,613 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 [2018-12-02 21:08:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-02 21:08:18,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-12-02 21:08:18,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-02 21:08:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2018-12-02 21:08:18,621 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 47 [2018-12-02 21:08:18,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:18,621 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2018-12-02 21:08:18,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 21:08:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2018-12-02 21:08:18,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 21:08:18,622 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:18,623 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] [2018-12-02 21:08:18,623 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:18,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:18,623 INFO L82 PathProgramCache]: Analyzing trace with hash -694828102, now seen corresponding path program 1 times [2018-12-02 21:08:18,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:18,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:18,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:18,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:18,624 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:08:18,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:08:18,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 21:08:18,695 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:08:18,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 21:08:18,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 21:08:18,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 21:08:18,696 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 7 states. [2018-12-02 21:08:18,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:18,849 INFO L93 Difference]: Finished difference Result 224 states and 265 transitions. [2018-12-02 21:08:18,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 21:08:18,849 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 21:08:18,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:18,850 INFO L225 Difference]: With dead ends: 224 [2018-12-02 21:08:18,850 INFO L226 Difference]: Without dead ends: 124 [2018-12-02 21:08:18,851 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 21:08:18,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-02 21:08:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-12-02 21:08:18,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-02 21:08:18,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2018-12-02 21:08:18,858 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 51 [2018-12-02 21:08:18,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:18,858 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2018-12-02 21:08:18,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 21:08:18,858 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2018-12-02 21:08:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-02 21:08:18,859 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:18,859 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:08:18,860 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:18,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:18,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1712639282, now seen corresponding path program 1 times [2018-12-02 21:08:18,860 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:18,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:18,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:18,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:18,861 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:18,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:08:18,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:08:18,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 21:08:18,916 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:08:18,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 21:08:18,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 21:08:18,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 21:08:18,917 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 5 states. [2018-12-02 21:08:19,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:19,147 INFO L93 Difference]: Finished difference Result 328 states and 392 transitions. [2018-12-02 21:08:19,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 21:08:19,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-02 21:08:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:19,149 INFO L225 Difference]: With dead ends: 328 [2018-12-02 21:08:19,149 INFO L226 Difference]: Without dead ends: 228 [2018-12-02 21:08:19,150 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 21:08:19,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-12-02 21:08:19,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 210. [2018-12-02 21:08:19,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-12-02 21:08:19,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 237 transitions. [2018-12-02 21:08:19,168 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 237 transitions. Word has length 64 [2018-12-02 21:08:19,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:19,168 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 237 transitions. [2018-12-02 21:08:19,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 21:08:19,168 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 237 transitions. [2018-12-02 21:08:19,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 21:08:19,170 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:19,171 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:08:19,171 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:19,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:19,171 INFO L82 PathProgramCache]: Analyzing trace with hash -803781158, now seen corresponding path program 1 times [2018-12-02 21:08:19,171 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:19,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:19,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:19,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:19,172 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:08:19,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:08:19,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 21:08:19,258 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:08:19,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 21:08:19,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 21:08:19,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 21:08:19,259 INFO L87 Difference]: Start difference. First operand 210 states and 237 transitions. Second operand 10 states. [2018-12-02 21:08:19,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:19,569 INFO L93 Difference]: Finished difference Result 680 states and 835 transitions. [2018-12-02 21:08:19,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 21:08:19,569 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-12-02 21:08:19,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:19,573 INFO L225 Difference]: With dead ends: 680 [2018-12-02 21:08:19,573 INFO L226 Difference]: Without dead ends: 494 [2018-12-02 21:08:19,575 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-02 21:08:19,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2018-12-02 21:08:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 484. [2018-12-02 21:08:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-12-02 21:08:19,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 565 transitions. [2018-12-02 21:08:19,621 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 565 transitions. Word has length 78 [2018-12-02 21:08:19,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:19,621 INFO L480 AbstractCegarLoop]: Abstraction has 484 states and 565 transitions. [2018-12-02 21:08:19,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 21:08:19,621 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 565 transitions. [2018-12-02 21:08:19,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-02 21:08:19,623 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:19,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:08:19,623 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:19,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:19,624 INFO L82 PathProgramCache]: Analyzing trace with hash -2028997949, now seen corresponding path program 1 times [2018-12-02 21:08:19,624 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:19,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:19,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:19,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:19,624 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-02 21:08:19,688 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 21:08:19,689 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 21:08:19,689 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-12-02 21:08:19,690 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [70], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [113], [116], [118], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [166], [170], [171], [179], [180], [209], [212], [216], [222], [225], [229], [230], [236], [240], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [268], [270], [271], [272], [273], [274], [275], [278], [279], [280], [281], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [300], [301], [302], [303], [304], [305], [306] [2018-12-02 21:08:19,713 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 21:08:19,713 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 21:08:20,636 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 21:08:20,637 INFO L272 AbstractInterpreter]: Visited 106 different actions 585 times. Merged at 16 different actions 45 times. Never widened. Performed 20041 root evaluator evaluations with a maximum evaluation depth of 3. Performed 20041 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-02 21:08:20,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:20,642 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 21:08:20,935 INFO L227 lantSequenceWeakener]: Weakened 131 states. On average, predicates are now at 96.93% of their original sizes. [2018-12-02 21:08:20,935 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 21:08:21,210 INFO L418 sIntCurrentIteration]: We unified 144 AI predicates to 144 [2018-12-02 21:08:21,210 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 21:08:21,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 21:08:21,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [37] imperfect sequences [6] total 41 [2018-12-02 21:08:21,211 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:08:21,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-12-02 21:08:21,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-12-02 21:08:21,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1117, Unknown=0, NotChecked=0, Total=1332 [2018-12-02 21:08:21,212 INFO L87 Difference]: Start difference. First operand 484 states and 565 transitions. Second operand 37 states. [2018-12-02 21:08:27,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:27,979 INFO L93 Difference]: Finished difference Result 2160 states and 2668 transitions. [2018-12-02 21:08:27,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-12-02 21:08:27,980 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 145 [2018-12-02 21:08:27,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:27,987 INFO L225 Difference]: With dead ends: 2160 [2018-12-02 21:08:27,987 INFO L226 Difference]: Without dead ends: 1700 [2018-12-02 21:08:27,991 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 198 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2452 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=812, Invalid=7378, Unknown=0, NotChecked=0, Total=8190 [2018-12-02 21:08:27,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2018-12-02 21:08:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1496. [2018-12-02 21:08:28,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2018-12-02 21:08:28,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1744 transitions. [2018-12-02 21:08:28,057 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1744 transitions. Word has length 145 [2018-12-02 21:08:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:28,058 INFO L480 AbstractCegarLoop]: Abstraction has 1496 states and 1744 transitions. [2018-12-02 21:08:28,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-12-02 21:08:28,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1744 transitions. [2018-12-02 21:08:28,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-12-02 21:08:28,061 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:28,061 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 21:08:28,061 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:28,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:28,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1811028525, now seen corresponding path program 1 times [2018-12-02 21:08:28,062 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:28,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:28,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:28,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:28,063 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:28,118 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-02 21:08:28,118 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 21:08:28,118 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 21:08:28,118 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-12-02 21:08:28,119 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [48], [55], [56], [57], [58], [61], [63], [64], [67], [70], [72], [73], [88], [91], [92], [93], [102], [106], [110], [113], [118], [121], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [166], [170], [171], [176], [178], [179], [180], [212], [216], [222], [230], [236], [240], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [264], [265], [268], [270], [271], [278], [279], [280], [281], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [300], [301], [302], [303], [304], [305], [306] [2018-12-02 21:08:28,122 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 21:08:28,122 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 21:08:28,278 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 21:08:28,278 INFO L272 AbstractInterpreter]: Visited 55 different actions 71 times. Merged at 3 different actions 3 times. Never widened. Performed 4691 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4691 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 21:08:28,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:28,280 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 21:08:28,407 INFO L227 lantSequenceWeakener]: Weakened 78 states. On average, predicates are now at 96.81% of their original sizes. [2018-12-02 21:08:28,407 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 21:08:28,457 INFO L418 sIntCurrentIteration]: We unified 155 AI predicates to 155 [2018-12-02 21:08:28,457 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 21:08:28,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 21:08:28,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-12-02 21:08:28,458 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:08:28,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 21:08:28,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 21:08:28,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-12-02 21:08:28,458 INFO L87 Difference]: Start difference. First operand 1496 states and 1744 transitions. Second operand 14 states. [2018-12-02 21:08:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:29,955 INFO L93 Difference]: Finished difference Result 3178 states and 3873 transitions. [2018-12-02 21:08:29,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 21:08:29,955 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 156 [2018-12-02 21:08:29,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:29,964 INFO L225 Difference]: With dead ends: 3178 [2018-12-02 21:08:29,964 INFO L226 Difference]: Without dead ends: 2194 [2018-12-02 21:08:29,967 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-12-02 21:08:29,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2018-12-02 21:08:30,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2092. [2018-12-02 21:08:30,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2018-12-02 21:08:30,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2435 transitions. [2018-12-02 21:08:30,109 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2435 transitions. Word has length 156 [2018-12-02 21:08:30,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:30,109 INFO L480 AbstractCegarLoop]: Abstraction has 2092 states and 2435 transitions. [2018-12-02 21:08:30,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 21:08:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2435 transitions. [2018-12-02 21:08:30,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-02 21:08:30,112 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:30,112 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:08:30,112 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:30,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:30,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1387075897, now seen corresponding path program 1 times [2018-12-02 21:08:30,113 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:30,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:30,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:30,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:30,113 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-02 21:08:30,167 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 21:08:30,167 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 21:08:30,167 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-12-02 21:08:30,167 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [70], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [113], [116], [118], [121], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [166], [170], [171], [176], [178], [179], [180], [209], [212], [216], [222], [225], [229], [230], [236], [240], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [268], [270], [271], [272], [273], [274], [275], [278], [279], [280], [281], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [300], [301], [302], [303], [304], [305], [306] [2018-12-02 21:08:30,170 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 21:08:30,170 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 21:08:31,132 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 21:08:31,132 INFO L272 AbstractInterpreter]: Visited 123 different actions 941 times. Merged at 20 different actions 86 times. Widened at 1 different actions 1 times. Performed 33760 root evaluator evaluations with a maximum evaluation depth of 3. Performed 33760 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 21 fixpoints after 6 different actions. Largest state had 132 variables. [2018-12-02 21:08:31,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:31,134 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 21:08:31,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 21:08:31,135 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/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 [2018-12-02 21:08:31,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:31,141 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 21:08:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:31,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 21:08:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 21:08:31,299 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 21:08:31,919 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 21:08:31,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 21:08:31,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 18 [2018-12-02 21:08:31,945 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:08:31,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 21:08:31,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 21:08:31,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-12-02 21:08:31,945 INFO L87 Difference]: Start difference. First operand 2092 states and 2435 transitions. Second operand 8 states. [2018-12-02 21:08:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:32,136 INFO L93 Difference]: Finished difference Result 3663 states and 4308 transitions. [2018-12-02 21:08:32,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 21:08:32,136 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2018-12-02 21:08:32,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:32,143 INFO L225 Difference]: With dead ends: 3663 [2018-12-02 21:08:32,143 INFO L226 Difference]: Without dead ends: 1975 [2018-12-02 21:08:32,147 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 279 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-12-02 21:08:32,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-12-02 21:08:32,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1970. [2018-12-02 21:08:32,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1970 states. [2018-12-02 21:08:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1970 states to 1970 states and 2258 transitions. [2018-12-02 21:08:32,222 INFO L78 Accepts]: Start accepts. Automaton has 1970 states and 2258 transitions. Word has length 149 [2018-12-02 21:08:32,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:32,223 INFO L480 AbstractCegarLoop]: Abstraction has 1970 states and 2258 transitions. [2018-12-02 21:08:32,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 21:08:32,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1970 states and 2258 transitions. [2018-12-02 21:08:32,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-02 21:08:32,224 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:32,225 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:08:32,225 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:32,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:32,225 INFO L82 PathProgramCache]: Analyzing trace with hash 269230209, now seen corresponding path program 1 times [2018-12-02 21:08:32,225 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:32,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:32,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:32,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:32,226 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:32,269 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-02 21:08:32,269 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 21:08:32,269 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 21:08:32,270 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-12-02 21:08:32,270 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [70], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [116], [118], [121], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [166], [170], [171], [176], [178], [179], [180], [209], [212], [216], [222], [225], [229], [230], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [268], [270], [271], [272], [273], [274], [275], [278], [279], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [300], [301], [302], [303], [304], [305], [306] [2018-12-02 21:08:32,272 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 21:08:32,272 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 21:08:33,081 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 21:08:33,081 INFO L272 AbstractInterpreter]: Visited 118 different actions 675 times. Merged at 18 different actions 59 times. Never widened. Performed 27220 root evaluator evaluations with a maximum evaluation depth of 3. Performed 27220 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-02 21:08:33,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:33,082 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 21:08:33,083 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 21:08:33,083 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/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 [2018-12-02 21:08:33,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:33,089 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 21:08:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:33,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 21:08:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-02 21:08:33,182 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 21:08:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-02 21:08:33,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 21:08:33,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-02 21:08:33,354 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:08:33,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 21:08:33,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 21:08:33,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 21:08:33,355 INFO L87 Difference]: Start difference. First operand 1970 states and 2258 transitions. Second operand 6 states. [2018-12-02 21:08:33,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:33,427 INFO L93 Difference]: Finished difference Result 3816 states and 4486 transitions. [2018-12-02 21:08:33,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 21:08:33,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-12-02 21:08:33,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:33,432 INFO L225 Difference]: With dead ends: 3816 [2018-12-02 21:08:33,432 INFO L226 Difference]: Without dead ends: 1978 [2018-12-02 21:08:33,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 285 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 21:08:33,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2018-12-02 21:08:33,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1950. [2018-12-02 21:08:33,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2018-12-02 21:08:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2232 transitions. [2018-12-02 21:08:33,494 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2232 transitions. Word has length 145 [2018-12-02 21:08:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:33,494 INFO L480 AbstractCegarLoop]: Abstraction has 1950 states and 2232 transitions. [2018-12-02 21:08:33,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 21:08:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2232 transitions. [2018-12-02 21:08:33,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-02 21:08:33,496 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:33,496 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 21:08:33,496 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:33,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:33,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1893372572, now seen corresponding path program 1 times [2018-12-02 21:08:33,496 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:33,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:33,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:33,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:33,497 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:33,543 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-02 21:08:33,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 21:08:33,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 21:08:33,543 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 21:08:33,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 21:08:33,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 21:08:33,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 21:08:33,544 INFO L87 Difference]: Start difference. First operand 1950 states and 2232 transitions. Second operand 6 states. [2018-12-02 21:08:33,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:33,656 INFO L93 Difference]: Finished difference Result 1965 states and 2247 transitions. [2018-12-02 21:08:33,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 21:08:33,657 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-12-02 21:08:33,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:33,660 INFO L225 Difference]: With dead ends: 1965 [2018-12-02 21:08:33,660 INFO L226 Difference]: Without dead ends: 1962 [2018-12-02 21:08:33,661 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 21:08:33,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2018-12-02 21:08:33,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1950. [2018-12-02 21:08:33,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2018-12-02 21:08:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2230 transitions. [2018-12-02 21:08:33,716 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2230 transitions. Word has length 149 [2018-12-02 21:08:33,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:33,716 INFO L480 AbstractCegarLoop]: Abstraction has 1950 states and 2230 transitions. [2018-12-02 21:08:33,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 21:08:33,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2230 transitions. [2018-12-02 21:08:33,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-02 21:08:33,718 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:33,718 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] [2018-12-02 21:08:33,718 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:33,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:33,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1022421047, now seen corresponding path program 1 times [2018-12-02 21:08:33,719 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:33,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:33,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:33,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:33,719 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-02 21:08:33,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 21:08:33,804 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 21:08:33,804 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-12-02 21:08:33,805 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [56], [57], [58], [61], [63], [64], [67], [71], [72], [73], [76], [78], [84], [88], [91], [92], [93], [102], [106], [110], [113], [116], [118], [124], [126], [129], [144], [145], [146], [147], [148], [150], [155], [158], [159], [160], [161], [163], [168], [170], [171], [179], [180], [209], [212], [216], [222], [225], [229], [230], [236], [240], [241], [244], [245], [246], [247], [248], [250], [251], [252], [253], [254], [255], [256], [257], [258], [260], [261], [262], [263], [266], [267], [268], [270], [271], [272], [273], [276], [277], [278], [279], [280], [281], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [300], [301], [302], [303], [304], [305], [306] [2018-12-02 21:08:33,806 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 21:08:33,806 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 21:08:34,360 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 21:08:34,360 INFO L272 AbstractInterpreter]: Visited 120 different actions 576 times. Merged at 15 different actions 42 times. Never widened. Performed 18624 root evaluator evaluations with a maximum evaluation depth of 3. Performed 18624 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-02 21:08:34,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:34,362 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 21:08:34,362 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 21:08:34,362 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 21:08:34,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:34,368 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 21:08:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 21:08:34,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 21:08:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 21:08:34,480 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 21:08:34,630 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-02 21:08:34,646 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 21:08:34,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-02 21:08:34,646 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 21:08:34,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-02 21:08:34,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-02 21:08:34,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-02 21:08:34,647 INFO L87 Difference]: Start difference. First operand 1950 states and 2230 transitions. Second operand 15 states. [2018-12-02 21:08:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 21:08:35,401 INFO L93 Difference]: Finished difference Result 3359 states and 4290 transitions. [2018-12-02 21:08:35,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-02 21:08:35,402 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 149 [2018-12-02 21:08:35,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 21:08:35,406 INFO L225 Difference]: With dead ends: 3359 [2018-12-02 21:08:35,407 INFO L226 Difference]: Without dead ends: 2400 [2018-12-02 21:08:35,409 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 290 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-02 21:08:35,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2400 states. [2018-12-02 21:08:35,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2400 to 1929. [2018-12-02 21:08:35,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1929 states. [2018-12-02 21:08:35,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2210 transitions. [2018-12-02 21:08:35,477 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2210 transitions. Word has length 149 [2018-12-02 21:08:35,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 21:08:35,477 INFO L480 AbstractCegarLoop]: Abstraction has 1929 states and 2210 transitions. [2018-12-02 21:08:35,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-02 21:08:35,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2210 transitions. [2018-12-02 21:08:35,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-12-02 21:08:35,480 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 21:08:35,481 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] [2018-12-02 21:08:35,481 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 21:08:35,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 21:08:35,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1329018936, now seen corresponding path program 2 times [2018-12-02 21:08:35,481 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 21:08:35,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:35,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 21:08:35,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 21:08:35,482 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 21:08:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 21:08:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 21:08:35,602 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 21:08:35,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:08:35 BoogieIcfgContainer [2018-12-02 21:08:35,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 21:08:35,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 21:08:35,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 21:08:35,712 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 21:08:35,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:08:18" (3/4) ... [2018-12-02 21:08:35,714 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 21:08:35,813 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dbbb4c55-53d1-4ff3-bf0b-9e201d34515b/bin-2019/utaipan/witness.graphml [2018-12-02 21:08:35,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 21:08:35,814 INFO L168 Benchmark]: Toolchain (without parser) took 18185.54 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.0 GB). Free memory was 951.3 MB in the beginning and 910.2 MB in the end (delta: 41.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-02 21:08:35,815 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:08:35,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -99.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-02 21:08:35,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:08:35,815 INFO L168 Benchmark]: Boogie Preprocessor took 24.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:08:35,815 INFO L168 Benchmark]: RCFGBuilder took 302.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 998.0 MB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. [2018-12-02 21:08:35,815 INFO L168 Benchmark]: TraceAbstraction took 17460.25 ms. Allocated memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: 954.2 MB). Free memory was 998.0 MB in the beginning and 985.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 967.0 MB. Max. memory is 11.5 GB. [2018-12-02 21:08:35,816 INFO L168 Benchmark]: Witness Printer took 101.82 ms. Allocated memory is still 2.1 GB. Free memory was 985.1 MB in the beginning and 910.2 MB in the end (delta: 75.0 MB). Peak memory consumption was 75.0 MB. Max. memory is 11.5 GB. [2018-12-02 21:08:35,817 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -99.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 302.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 998.0 MB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17460.25 ms. Allocated memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: 954.2 MB). Free memory was 998.0 MB in the beginning and 985.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 967.0 MB. Max. memory is 11.5 GB. * Witness Printer took 101.82 ms. Allocated memory is still 2.1 GB. Free memory was 985.1 MB in the beginning and 910.2 MB in the end (delta: 75.0 MB). Peak memory consumption was 75.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 317]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L117] int pumpRunning = 0; [L118] int systemActive = 1; [L491] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L715] int cleanupTimeShifts = 4; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; [L791] int retValue_acc ; [L792] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L796] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L797] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] int retValue_acc ; [L937] retValue_acc = 1 [L938] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L798] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L798] tmp = valid_product() [L800] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L802] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L803] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L782] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L54] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L56] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L62] tmp = __VERIFIER_nondet_int() [L64] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L66] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L66] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L97] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L125] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L134] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L180] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L198] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L154] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L159] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L897] COND FALSE !(waterLevel < 2) [L901] retValue_acc = 0 [L902] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L300] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] tmp = isHighWaterSensorDry() [L302] COND FALSE !(\read(tmp)) [L305] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L159] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L159] tmp = isHighWaterLevel() [L161] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L163] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L213] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L217] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L217] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isMethaneAlarm() [L219] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L223] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L208] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L223] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L163] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L198] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L134] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L140] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L690] int tmp ; [L691] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L695] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L695] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L140] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L97] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L54] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L56] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L97] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L125] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L127] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L127] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L132] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L134] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L180] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L183] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L185] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L193] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L154] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L172] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L193] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L134] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L690] int tmp ; [L691] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L695] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L695] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L140] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L97] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L54] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L56] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L97] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L125] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L127] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L127] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L132] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L134] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L180] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L183] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L185] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L185] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L193] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L154] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L157] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L172] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L193] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L134] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L140] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L690] int tmp ; [L691] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L695] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L695] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L695] tmp = getWaterLevel() [L697] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L699] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L699] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L699] tmp___0 = isPumpRunning() [L701] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L703] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L317] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 146 locations, 1 error locations. UNSAFE Result, 17.4s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 10.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2157 SDtfs, 3157 SDslu, 9654 SDs, 0 SdLazy, 4934 SolverSat, 1252 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1342 GetRequests, 1131 SyntacticMatches, 20 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2781 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2092occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.4s AbstIntTime, 5 AbstIntIterations, 2 AbstIntStrong, 0.9972896082666387 AbsIntWeakeningRatio, 0.8662207357859532 AbsIntAvgWeakeningVarsNumRemoved, 52.91638795986622 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 850 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1822 NumberOfCodeBlocks, 1822 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2048 ConstructedInterpolants, 0 QuantifiedInterpolants, 391166 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2529 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 357/411 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...