./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-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_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/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 99a0574ff0f23dd43b458f22f446fd063a15f78d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 19:29:31,159 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 19:29:31,160 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 19:29:31,166 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 19:29:31,166 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 19:29:31,167 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 19:29:31,167 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 19:29:31,168 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 19:29:31,169 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 19:29:31,169 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 19:29:31,170 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 19:29:31,170 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 19:29:31,170 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 19:29:31,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 19:29:31,171 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 19:29:31,172 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 19:29:31,172 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 19:29:31,173 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 19:29:31,174 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 19:29:31,174 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 19:29:31,175 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 19:29:31,175 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 19:29:31,176 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 19:29:31,176 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 19:29:31,177 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 19:29:31,177 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 19:29:31,177 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 19:29:31,178 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 19:29:31,178 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 19:29:31,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 19:29:31,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 19:29:31,179 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 19:29:31,179 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 19:29:31,179 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 19:29:31,180 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 19:29:31,180 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 19:29:31,180 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 19:29:31,187 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 19:29:31,187 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 19:29:31,187 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 19:29:31,187 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 19:29:31,188 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 19:29:31,188 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 19:29:31,188 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 19:29:31,188 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 19:29:31,188 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 19:29:31,188 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 19:29:31,188 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 19:29:31,188 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 19:29:31,188 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 19:29:31,189 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 19:29:31,189 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 19:29:31,189 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 19:29:31,189 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 19:29:31,189 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 19:29:31,189 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 19:29:31,189 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 19:29:31,189 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 19:29:31,189 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 19:29:31,189 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 19:29:31,190 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 19:29:31,190 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 19:29:31,190 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 19:29:31,190 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 19:29:31,190 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 19:29:31,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 19:29:31,190 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 19:29:31,190 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 19:29:31,190 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 19:29:31,190 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 19:29:31,191 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 19:29:31,191 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 19:29:31,191 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 19:29:31,191 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_3b9038cb-09af-4065-823d-236108a5072d/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 -> 99a0574ff0f23dd43b458f22f446fd063a15f78d [2018-12-02 19:29:31,208 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 19:29:31,217 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 19:29:31,219 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 19:29:31,221 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 19:29:31,221 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 19:29:31,221 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-12-02 19:29:31,264 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/data/086eb9b43/a52221603d984f0997bdbaecdded9227/FLAG42a6fbc00 [2018-12-02 19:29:31,665 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 19:29:31,665 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-12-02 19:29:31,671 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/data/086eb9b43/a52221603d984f0997bdbaecdded9227/FLAG42a6fbc00 [2018-12-02 19:29:31,679 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/data/086eb9b43/a52221603d984f0997bdbaecdded9227 [2018-12-02 19:29:31,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 19:29:31,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 19:29:31,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 19:29:31,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 19:29:31,684 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 19:29:31,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:31,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31, skipping insertion in model container [2018-12-02 19:29:31,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:31,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 19:29:31,711 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 19:29:31,856 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 19:29:31,896 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 19:29:31,942 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 19:29:31,958 INFO L195 MainTranslator]: Completed translation [2018-12-02 19:29:31,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31 WrapperNode [2018-12-02 19:29:31,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 19:29:31,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 19:29:31,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 19:29:31,959 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 19:29:31,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:31,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:31,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 19:29:31,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 19:29:31,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 19:29:31,979 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 19:29:31,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:31,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:31,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:31,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:31,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:31,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:31,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (1/1) ... [2018-12-02 19:29:32,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 19:29:32,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 19:29:32,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 19:29:32,001 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 19:29:32,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/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 19:29:32,042 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 19:29:32,042 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 19:29:32,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-02 19:29:32,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-02 19:29:32,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 19:29:32,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 19:29:32,043 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 19:29:32,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 19:29:32,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 19:29:32,043 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 19:29:32,043 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 19:29:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 19:29:32,044 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 19:29:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 19:29:32,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 19:29:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 19:29:32,044 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 19:29:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 19:29:32,044 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 19:29:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 19:29:32,045 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 19:29:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 19:29:32,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 19:29:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 19:29:32,045 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 19:29:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 19:29:32,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 19:29:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 19:29:32,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 19:29:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 19:29:32,046 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 19:29:32,046 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 19:29:32,046 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 19:29:32,046 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 19:29:32,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 19:29:32,046 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 19:29:32,046 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 19:29:32,046 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-02 19:29:32,046 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-02 19:29:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 19:29:32,047 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 19:29:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 19:29:32,047 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 19:29:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 19:29:32,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 19:29:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 19:29:32,047 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 19:29:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 19:29:32,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 19:29:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 19:29:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 19:29:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 19:29:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 19:29:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 19:29:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 19:29:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 19:29:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 19:29:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 19:29:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 19:29:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 19:29:32,049 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 19:29:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 19:29:32,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 19:29:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 19:29:32,354 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 19:29:32,354 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 19:29:32,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:29:32 BoogieIcfgContainer [2018-12-02 19:29:32,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 19:29:32,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 19:29:32,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 19:29:32,357 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 19:29:32,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:29:31" (1/3) ... [2018-12-02 19:29:32,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339cf310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:29:32, skipping insertion in model container [2018-12-02 19:29:32,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:29:31" (2/3) ... [2018-12-02 19:29:32,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339cf310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:29:32, skipping insertion in model container [2018-12-02 19:29:32,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:29:32" (3/3) ... [2018-12-02 19:29:32,359 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-12-02 19:29:32,365 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 19:29:32,370 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 19:29:32,378 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 19:29:32,397 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 19:29:32,397 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 19:29:32,397 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 19:29:32,397 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 19:29:32,397 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 19:29:32,397 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 19:29:32,397 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 19:29:32,397 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 19:29:32,409 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2018-12-02 19:29:32,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 19:29:32,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:32,414 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 19:29:32,415 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:32,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:32,419 INFO L82 PathProgramCache]: Analyzing trace with hash 345966289, now seen corresponding path program 1 times [2018-12-02 19:29:32,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:32,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:32,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:32,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:32,448 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:32,554 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 19:29:32,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:29:32,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 19:29:32,556 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:32,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 19:29:32,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 19:29:32,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 19:29:32,569 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2018-12-02 19:29:32,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:32,593 INFO L93 Difference]: Finished difference Result 294 states and 357 transitions. [2018-12-02 19:29:32,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 19:29:32,594 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 19:29:32,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:32,601 INFO L225 Difference]: With dead ends: 294 [2018-12-02 19:29:32,601 INFO L226 Difference]: Without dead ends: 147 [2018-12-02 19:29:32,604 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 19:29:32,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-12-02 19:29:32,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-12-02 19:29:32,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-12-02 19:29:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 170 transitions. [2018-12-02 19:29:32,637 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 170 transitions. Word has length 46 [2018-12-02 19:29:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:32,637 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 170 transitions. [2018-12-02 19:29:32,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 19:29:32,637 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 170 transitions. [2018-12-02 19:29:32,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 19:29:32,639 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:32,639 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 19:29:32,639 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:32,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:32,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1633337234, now seen corresponding path program 1 times [2018-12-02 19:29:32,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:32,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:32,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:32,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:32,641 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:32,692 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 19:29:32,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:29:32,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 19:29:32,692 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:32,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 19:29:32,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 19:29:32,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 19:29:32,694 INFO L87 Difference]: Start difference. First operand 147 states and 170 transitions. Second operand 3 states. [2018-12-02 19:29:32,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:32,708 INFO L93 Difference]: Finished difference Result 239 states and 275 transitions. [2018-12-02 19:29:32,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 19:29:32,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 19:29:32,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:32,709 INFO L225 Difference]: With dead ends: 239 [2018-12-02 19:29:32,709 INFO L226 Difference]: Without dead ends: 138 [2018-12-02 19:29:32,710 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 19:29:32,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-12-02 19:29:32,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-12-02 19:29:32,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-12-02 19:29:32,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2018-12-02 19:29:32,718 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 47 [2018-12-02 19:29:32,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:32,718 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2018-12-02 19:29:32,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 19:29:32,718 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2018-12-02 19:29:32,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-02 19:29:32,719 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:32,719 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:29:32,720 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:32,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:32,720 INFO L82 PathProgramCache]: Analyzing trace with hash 2041048239, now seen corresponding path program 1 times [2018-12-02 19:29:32,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:32,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:32,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:32,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:32,721 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:32,792 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 19:29:32,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:29:32,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 19:29:32,793 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:32,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 19:29:32,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 19:29:32,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 19:29:32,793 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 7 states. [2018-12-02 19:29:32,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:32,952 INFO L93 Difference]: Finished difference Result 252 states and 293 transitions. [2018-12-02 19:29:32,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 19:29:32,952 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-02 19:29:32,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:32,953 INFO L225 Difference]: With dead ends: 252 [2018-12-02 19:29:32,953 INFO L226 Difference]: Without dead ends: 138 [2018-12-02 19:29:32,954 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 19:29:32,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-12-02 19:29:32,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-12-02 19:29:32,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-12-02 19:29:32,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 157 transitions. [2018-12-02 19:29:32,962 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 157 transitions. Word has length 52 [2018-12-02 19:29:32,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:32,962 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 157 transitions. [2018-12-02 19:29:32,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 19:29:32,962 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 157 transitions. [2018-12-02 19:29:32,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-02 19:29:32,963 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:32,963 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] [2018-12-02 19:29:32,963 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:32,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:32,964 INFO L82 PathProgramCache]: Analyzing trace with hash -507321815, now seen corresponding path program 1 times [2018-12-02 19:29:32,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:32,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:32,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:32,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:32,965 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:33,026 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 19:29:33,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:29:33,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 19:29:33,026 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:33,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 19:29:33,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 19:29:33,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 19:29:33,027 INFO L87 Difference]: Start difference. First operand 138 states and 157 transitions. Second operand 5 states. [2018-12-02 19:29:33,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:33,330 INFO L93 Difference]: Finished difference Result 353 states and 419 transitions. [2018-12-02 19:29:33,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:29:33,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-12-02 19:29:33,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:33,332 INFO L225 Difference]: With dead ends: 353 [2018-12-02 19:29:33,332 INFO L226 Difference]: Without dead ends: 239 [2018-12-02 19:29:33,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:29:33,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-12-02 19:29:33,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 220. [2018-12-02 19:29:33,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-12-02 19:29:33,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 248 transitions. [2018-12-02 19:29:33,349 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 248 transitions. Word has length 65 [2018-12-02 19:29:33,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:33,349 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 248 transitions. [2018-12-02 19:29:33,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 19:29:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 248 transitions. [2018-12-02 19:29:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-02 19:29:33,358 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:33,358 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:29:33,358 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:33,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:33,359 INFO L82 PathProgramCache]: Analyzing trace with hash -465750265, now seen corresponding path program 1 times [2018-12-02 19:29:33,359 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:33,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:33,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:33,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:33,360 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:33,423 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 19:29:33,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:29:33,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 19:29:33,424 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:33,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 19:29:33,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 19:29:33,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:29:33,424 INFO L87 Difference]: Start difference. First operand 220 states and 248 transitions. Second operand 8 states. [2018-12-02 19:29:33,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:33,445 INFO L93 Difference]: Finished difference Result 423 states and 489 transitions. [2018-12-02 19:29:33,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 19:29:33,446 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2018-12-02 19:29:33,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:33,447 INFO L225 Difference]: With dead ends: 423 [2018-12-02 19:29:33,447 INFO L226 Difference]: Without dead ends: 227 [2018-12-02 19:29:33,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 19:29:33,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-12-02 19:29:33,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 224. [2018-12-02 19:29:33,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-12-02 19:29:33,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 252 transitions. [2018-12-02 19:29:33,459 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 252 transitions. Word has length 79 [2018-12-02 19:29:33,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:33,459 INFO L480 AbstractCegarLoop]: Abstraction has 224 states and 252 transitions. [2018-12-02 19:29:33,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 19:29:33,459 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 252 transitions. [2018-12-02 19:29:33,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-02 19:29:33,460 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:33,460 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:29:33,460 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:33,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:33,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1851953659, now seen corresponding path program 1 times [2018-12-02 19:29:33,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:33,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:33,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:33,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:33,461 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:33,532 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 19:29:33,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:29:33,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 19:29:33,533 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:33,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 19:29:33,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 19:29:33,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 19:29:33,533 INFO L87 Difference]: Start difference. First operand 224 states and 252 transitions. Second operand 10 states. [2018-12-02 19:29:33,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:33,823 INFO L93 Difference]: Finished difference Result 726 states and 882 transitions. [2018-12-02 19:29:33,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 19:29:33,823 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2018-12-02 19:29:33,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:33,826 INFO L225 Difference]: With dead ends: 726 [2018-12-02 19:29:33,826 INFO L226 Difference]: Without dead ends: 526 [2018-12-02 19:29:33,827 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 19:29:33,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2018-12-02 19:29:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 516. [2018-12-02 19:29:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2018-12-02 19:29:33,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 597 transitions. [2018-12-02 19:29:33,860 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 597 transitions. Word has length 79 [2018-12-02 19:29:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:33,860 INFO L480 AbstractCegarLoop]: Abstraction has 516 states and 597 transitions. [2018-12-02 19:29:33,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 19:29:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 597 transitions. [2018-12-02 19:29:33,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-12-02 19:29:33,863 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:33,863 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, 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] [2018-12-02 19:29:33,863 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:33,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:33,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1726701374, now seen corresponding path program 1 times [2018-12-02 19:29:33,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:33,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:33,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:33,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:33,865 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:33,948 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-12-02 19:29:33,948 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 19:29:33,948 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 19:29:33,949 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-12-02 19:29:33,950 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [59], [74], [77], [78], [81], [83], [84], [85], [94], [98], [102], [105], [110], [116], [118], [124], [129], [141], [142], [154], [156], [159], [163], [164], [165], [166], [179], [183], [189], [225], [231], [234], [236], [242], [249], [252], [256], [257], [260], [261], [262], [263], [264], [266], [267], [268], [269], [270], [271], [272], [273], [274], [278], [288], [289], [290], [291], [296], [297], [304], [305], [308], [309], [310], [311], [316], [317], [318], [320], [321], [324], [325] [2018-12-02 19:29:33,972 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 19:29:33,972 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 19:29:34,202 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 19:29:34,203 INFO L272 AbstractInterpreter]: Visited 51 different actions 51 times. Never merged. Never widened. Performed 2055 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2055 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-02 19:29:34,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:34,207 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 19:29:34,375 INFO L227 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 97.31% of their original sizes. [2018-12-02 19:29:34,375 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 19:29:34,421 INFO L418 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2018-12-02 19:29:34,421 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 19:29:34,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 19:29:34,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-12-02 19:29:34,422 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:34,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 19:29:34,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 19:29:34,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-12-02 19:29:34,423 INFO L87 Difference]: Start difference. First operand 516 states and 597 transitions. Second operand 10 states. [2018-12-02 19:29:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:35,548 INFO L93 Difference]: Finished difference Result 1045 states and 1224 transitions. [2018-12-02 19:29:35,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 19:29:35,548 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 138 [2018-12-02 19:29:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:35,550 INFO L225 Difference]: With dead ends: 1045 [2018-12-02 19:29:35,550 INFO L226 Difference]: Without dead ends: 674 [2018-12-02 19:29:35,551 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-12-02 19:29:35,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2018-12-02 19:29:35,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2018-12-02 19:29:35,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2018-12-02 19:29:35,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 775 transitions. [2018-12-02 19:29:35,572 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 775 transitions. Word has length 138 [2018-12-02 19:29:35,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:35,572 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 775 transitions. [2018-12-02 19:29:35,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 19:29:35,572 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 775 transitions. [2018-12-02 19:29:35,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-02 19:29:35,574 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:35,574 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:35,574 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:35,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:35,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1517889466, now seen corresponding path program 1 times [2018-12-02 19:29:35,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:35,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:35,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:35,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:35,575 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 19:29:35,614 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 19:29:35,614 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 19:29:35,614 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-12-02 19:29:35,614 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [67], [74], [77], [78], [81], [83], [85], [94], [98], [102], [108], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [159], [163], [164], [165], [166], [176], [179], [183], [189], [216], [217], [220], [224], [225], [231], [234], [236], [239], [249], [257], [260], [261], [262], [263], [264], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [280], [281], [282], [283], [284], [285], [288], [289], [296], [297], [300], [301], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [316], [317], [318], [320], [321], [322], [323] [2018-12-02 19:29:35,616 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 19:29:35,617 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 19:29:36,385 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 19:29:36,386 INFO L272 AbstractInterpreter]: Visited 123 different actions 624 times. Merged at 17 different actions 54 times. Never widened. Performed 19871 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19871 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-02 19:29:36,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:36,388 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 19:29:36,388 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 19:29:36,388 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/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 19:29:36,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:36,395 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 19:29:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:36,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 19:29:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 19:29:36,499 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 19:29:36,674 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 19:29:36,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 19:29:36,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-02 19:29:36,700 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:36,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:29:36,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:29:36,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:29:36,701 INFO L87 Difference]: Start difference. First operand 670 states and 775 transitions. Second operand 6 states. [2018-12-02 19:29:36,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:36,728 INFO L93 Difference]: Finished difference Result 1151 states and 1372 transitions. [2018-12-02 19:29:36,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 19:29:36,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-12-02 19:29:36,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:36,730 INFO L225 Difference]: With dead ends: 1151 [2018-12-02 19:29:36,730 INFO L226 Difference]: Without dead ends: 505 [2018-12-02 19:29:36,731 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 19:29:36,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-12-02 19:29:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 501. [2018-12-02 19:29:36,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2018-12-02 19:29:36,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 576 transitions. [2018-12-02 19:29:36,747 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 576 transitions. Word has length 145 [2018-12-02 19:29:36,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:36,747 INFO L480 AbstractCegarLoop]: Abstraction has 501 states and 576 transitions. [2018-12-02 19:29:36,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:29:36,747 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 576 transitions. [2018-12-02 19:29:36,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-02 19:29:36,748 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:36,748 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:29:36,748 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:36,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:36,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1531555343, now seen corresponding path program 1 times [2018-12-02 19:29:36,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:36,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:36,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:36,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:36,749 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:36,807 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-02 19:29:36,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:29:36,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:29:36,807 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:36,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:29:36,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:29:36,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:29:36,808 INFO L87 Difference]: Start difference. First operand 501 states and 576 transitions. Second operand 6 states. [2018-12-02 19:29:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:36,836 INFO L93 Difference]: Finished difference Result 844 states and 983 transitions. [2018-12-02 19:29:36,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 19:29:36,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-12-02 19:29:36,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:36,838 INFO L225 Difference]: With dead ends: 844 [2018-12-02 19:29:36,838 INFO L226 Difference]: Without dead ends: 511 [2018-12-02 19:29:36,839 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 19:29:36,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-12-02 19:29:36,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2018-12-02 19:29:36,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2018-12-02 19:29:36,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 586 transitions. [2018-12-02 19:29:36,853 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 586 transitions. Word has length 149 [2018-12-02 19:29:36,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:36,853 INFO L480 AbstractCegarLoop]: Abstraction has 511 states and 586 transitions. [2018-12-02 19:29:36,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:29:36,854 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 586 transitions. [2018-12-02 19:29:36,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-12-02 19:29:36,855 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:36,855 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, 1, 1, 1, 1] [2018-12-02 19:29:36,855 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:36,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:36,855 INFO L82 PathProgramCache]: Analyzing trace with hash 418682247, now seen corresponding path program 1 times [2018-12-02 19:29:36,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:36,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:36,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:36,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:36,856 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 19:29:36,904 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 19:29:36,904 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 19:29:36,905 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-12-02 19:29:36,905 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [67], [74], [77], [78], [82], [83], [85], [94], [98], [102], [105], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [165], [166], [176], [179], [183], [189], [216], [217], [220], [224], [225], [231], [234], [236], [239], [249], [252], [256], [257], [260], [261], [262], [263], [264], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [280], [281], [282], [283], [284], [285], [288], [289], [290], [291], [296], [297], [300], [301], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [316], [317], [318], [320], [321], [322], [323] [2018-12-02 19:29:36,908 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 19:29:36,908 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 19:29:37,073 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 19:29:37,074 INFO L272 AbstractInterpreter]: Visited 106 different actions 114 times. Merged at 5 different actions 5 times. Never widened. Performed 3647 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3647 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 133 variables. [2018-12-02 19:29:37,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:37,076 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 19:29:37,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 19:29:37,076 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/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 19:29:37,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:37,082 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 19:29:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:37,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 19:29:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:29:37,184 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 19:29:37,368 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 19:29:37,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 19:29:37,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2018-12-02 19:29:37,393 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:37,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 19:29:37,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 19:29:37,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-12-02 19:29:37,394 INFO L87 Difference]: Start difference. First operand 511 states and 586 transitions. Second operand 5 states. [2018-12-02 19:29:37,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:37,709 INFO L93 Difference]: Finished difference Result 851 states and 1019 transitions. [2018-12-02 19:29:37,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 19:29:37,709 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2018-12-02 19:29:37,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:37,711 INFO L225 Difference]: With dead ends: 851 [2018-12-02 19:29:37,711 INFO L226 Difference]: Without dead ends: 508 [2018-12-02 19:29:37,712 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 306 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-12-02 19:29:37,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2018-12-02 19:29:37,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 468. [2018-12-02 19:29:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2018-12-02 19:29:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 543 transitions. [2018-12-02 19:29:37,727 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 543 transitions. Word has length 153 [2018-12-02 19:29:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:37,727 INFO L480 AbstractCegarLoop]: Abstraction has 468 states and 543 transitions. [2018-12-02 19:29:37,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 19:29:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 543 transitions. [2018-12-02 19:29:37,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-02 19:29:37,728 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:37,728 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:29:37,728 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:37,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:37,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1022082253, now seen corresponding path program 1 times [2018-12-02 19:29:37,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:37,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:37,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:37,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:37,729 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:37,770 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-02 19:29:37,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 19:29:37,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 19:29:37,770 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:37,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:29:37,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:29:37,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 19:29:37,770 INFO L87 Difference]: Start difference. First operand 468 states and 543 transitions. Second operand 6 states. [2018-12-02 19:29:37,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:37,865 INFO L93 Difference]: Finished difference Result 475 states and 552 transitions. [2018-12-02 19:29:37,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 19:29:37,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-12-02 19:29:37,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:37,866 INFO L225 Difference]: With dead ends: 475 [2018-12-02 19:29:37,866 INFO L226 Difference]: Without dead ends: 472 [2018-12-02 19:29:37,866 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 19:29:37,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2018-12-02 19:29:37,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 468. [2018-12-02 19:29:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2018-12-02 19:29:37,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 542 transitions. [2018-12-02 19:29:37,881 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 542 transitions. Word has length 149 [2018-12-02 19:29:37,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:37,881 INFO L480 AbstractCegarLoop]: Abstraction has 468 states and 542 transitions. [2018-12-02 19:29:37,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:29:37,881 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 542 transitions. [2018-12-02 19:29:37,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-12-02 19:29:37,882 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:37,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:37,882 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:37,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:37,882 INFO L82 PathProgramCache]: Analyzing trace with hash -2058920796, now seen corresponding path program 1 times [2018-12-02 19:29:37,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:37,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:37,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:37,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:37,883 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:37,954 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 19:29:37,954 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 19:29:37,954 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 19:29:37,954 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-12-02 19:29:37,954 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [59], [62], [64], [70], [74], [77], [78], [82], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [165], [166], [176], [179], [183], [189], [216], [217], [220], [224], [225], [231], [234], [236], [239], [246], [249], [252], [256], [257], [260], [261], [262], [263], [264], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [280], [281], [282], [283], [286], [287], [288], [289], [290], [291], [296], [297], [300], [301], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [316], [317], [318], [320], [321], [322], [323], [326], [327] [2018-12-02 19:29:37,956 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 19:29:37,956 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 19:29:38,723 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 19:29:38,723 INFO L272 AbstractInterpreter]: Visited 130 different actions 595 times. Merged at 16 different actions 46 times. Never widened. Performed 18967 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18967 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-02 19:29:38,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:38,736 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 19:29:38,736 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 19:29:38,736 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/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 19:29:38,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:38,743 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 19:29:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:38,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 19:29:38,893 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 19:29:38,893 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 19:29:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 19:29:39,110 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 19:29:39,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-02 19:29:39,110 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 19:29:39,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 19:29:39,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 19:29:39,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-12-02 19:29:39,111 INFO L87 Difference]: Start difference. First operand 468 states and 542 transitions. Second operand 14 states. [2018-12-02 19:29:40,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:40,205 INFO L93 Difference]: Finished difference Result 1184 states and 1534 transitions. [2018-12-02 19:29:40,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 19:29:40,205 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 153 [2018-12-02 19:29:40,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:40,208 INFO L225 Difference]: With dead ends: 1184 [2018-12-02 19:29:40,208 INFO L226 Difference]: Without dead ends: 886 [2018-12-02 19:29:40,209 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 301 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-12-02 19:29:40,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2018-12-02 19:29:40,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 745. [2018-12-02 19:29:40,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2018-12-02 19:29:40,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 872 transitions. [2018-12-02 19:29:40,234 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 872 transitions. Word has length 153 [2018-12-02 19:29:40,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:40,234 INFO L480 AbstractCegarLoop]: Abstraction has 745 states and 872 transitions. [2018-12-02 19:29:40,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 19:29:40,234 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 872 transitions. [2018-12-02 19:29:40,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-12-02 19:29:40,236 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 19:29:40,236 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 19:29:40,237 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 19:29:40,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:40,237 INFO L82 PathProgramCache]: Analyzing trace with hash -2014696091, now seen corresponding path program 1 times [2018-12-02 19:29:40,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 19:29:40,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:40,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:40,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 19:29:40,238 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 19:29:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:40,306 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-12-02 19:29:40,306 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 19:29:40,306 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 19:29:40,306 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-12-02 19:29:40,306 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [53], [55], [56], [59], [62], [64], [70], [74], [77], [78], [82], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [165], [166], [176], [179], [183], [189], [216], [217], [220], [224], [225], [231], [234], [236], [239], [246], [249], [252], [256], [257], [260], [261], [262], [263], [264], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [280], [281], [282], [283], [286], [287], [288], [289], [290], [291], [296], [297], [300], [301], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [316], [317], [318], [320], [321], [322], [323], [326], [327] [2018-12-02 19:29:40,308 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 19:29:40,308 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 19:29:40,998 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 19:29:40,998 INFO L272 AbstractInterpreter]: Visited 131 different actions 607 times. Merged at 19 different actions 55 times. Never widened. Performed 19145 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19145 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-02 19:29:41,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 19:29:41,000 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 19:29:41,000 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 19:29:41,000 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 19:29:41,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 19:29:41,006 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 19:29:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 19:29:41,074 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 19:29:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-12-02 19:29:41,128 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 19:29:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-12-02 19:29:41,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 19:29:41,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-02 19:29:41,293 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 19:29:41,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 19:29:41,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 19:29:41,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-02 19:29:41,293 INFO L87 Difference]: Start difference. First operand 745 states and 872 transitions. Second operand 6 states. [2018-12-02 19:29:41,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 19:29:41,316 INFO L93 Difference]: Finished difference Result 966 states and 1130 transitions. [2018-12-02 19:29:41,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 19:29:41,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2018-12-02 19:29:41,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 19:29:41,317 INFO L225 Difference]: With dead ends: 966 [2018-12-02 19:29:41,317 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 19:29:41,319 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 409 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-12-02 19:29:41,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 19:29:41,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 19:29:41,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 19:29:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 19:29:41,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2018-12-02 19:29:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 19:29:41,320 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 19:29:41,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 19:29:41,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 19:29:41,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 19:29:41,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 19:29:41,382 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,478 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:41,541 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 19:29:42,563 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 674 680) the Hoare annotation is: true [2018-12-02 19:29:42,564 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 674 680) no Hoare annotation was computed. [2018-12-02 19:29:42,564 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 681 689) no Hoare annotation was computed. [2018-12-02 19:29:42,564 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 681 689) the Hoare annotation is: true [2018-12-02 19:29:42,564 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 681 689) no Hoare annotation was computed. [2018-12-02 19:29:42,564 INFO L448 ceAbstractionStarter]: For program point L417(lines 417 430) no Hoare annotation was computed. [2018-12-02 19:29:42,564 INFO L448 ceAbstractionStarter]: For program point L417-1(lines 409 433) no Hoare annotation was computed. [2018-12-02 19:29:42,564 INFO L451 ceAbstractionStarter]: At program point L415(line 415) the Hoare annotation is: true [2018-12-02 19:29:42,564 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 409 433) the Hoare annotation is: true [2018-12-02 19:29:42,564 INFO L448 ceAbstractionStarter]: For program point L415-1(line 415) no Hoare annotation was computed. [2018-12-02 19:29:42,564 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 409 433) no Hoare annotation was computed. [2018-12-02 19:29:42,564 INFO L444 ceAbstractionStarter]: At program point L423(line 423) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-12-02 19:29:42,564 INFO L448 ceAbstractionStarter]: For program point L421(lines 421 427) no Hoare annotation was computed. [2018-12-02 19:29:42,565 INFO L444 ceAbstractionStarter]: At program point L419(line 419) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-12-02 19:29:42,565 INFO L448 ceAbstractionStarter]: For program point L419-1(line 419) no Hoare annotation was computed. [2018-12-02 19:29:42,565 INFO L448 ceAbstractionStarter]: For program point L642-1(lines 642 649) no Hoare annotation was computed. [2018-12-02 19:29:42,565 INFO L448 ceAbstractionStarter]: For program point L640(line 640) no Hoare annotation was computed. [2018-12-02 19:29:42,565 INFO L444 ceAbstractionStarter]: At program point L639(line 639) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 19:29:42,565 INFO L444 ceAbstractionStarter]: At program point L638(line 638) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 19:29:42,565 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 632 654) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 19:29:42,565 INFO L444 ceAbstractionStarter]: At program point L638-1(line 638) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 19:29:42,565 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 632 654) no Hoare annotation was computed. [2018-12-02 19:29:42,565 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 632 654) no Hoare annotation was computed. [2018-12-02 19:29:42,565 INFO L444 ceAbstractionStarter]: At program point L644(line 644) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= main_~tmp~4 ~waterLevel~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 19:29:42,566 INFO L444 ceAbstractionStarter]: At program point L644-1(line 644) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= main_~tmp~4 ~waterLevel~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 19:29:42,566 INFO L448 ceAbstractionStarter]: For program point L642(lines 642 649) no Hoare annotation was computed. [2018-12-02 19:29:42,566 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 825 833) no Hoare annotation was computed. [2018-12-02 19:29:42,566 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 825 833) the Hoare annotation is: true [2018-12-02 19:29:42,566 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 825 833) no Hoare annotation was computed. [2018-12-02 19:29:42,566 INFO L451 ceAbstractionStarter]: At program point L896(line 896) the Hoare annotation is: true [2018-12-02 19:29:42,566 INFO L448 ceAbstractionStarter]: For program point L898-2(lines 898 902) no Hoare annotation was computed. [2018-12-02 19:29:42,566 INFO L448 ceAbstractionStarter]: For program point L896-1(line 896) no Hoare annotation was computed. [2018-12-02 19:29:42,566 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 889 907) the Hoare annotation is: true [2018-12-02 19:29:42,566 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 889 907) no Hoare annotation was computed. [2018-12-02 19:29:42,566 INFO L448 ceAbstractionStarter]: For program point L898(lines 898 902) no Hoare annotation was computed. [2018-12-02 19:29:42,566 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 889 907) no Hoare annotation was computed. [2018-12-02 19:29:42,566 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 667 673) no Hoare annotation was computed. [2018-12-02 19:29:42,566 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 667 673) the Hoare annotation is: true [2018-12-02 19:29:42,567 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 619 628) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 19:29:42,567 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 619 628) no Hoare annotation was computed. [2018-12-02 19:29:42,567 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 619 628) no Hoare annotation was computed. [2018-12-02 19:29:42,567 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 814 824) the Hoare annotation is: true [2018-12-02 19:29:42,567 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 814 824) no Hoare annotation was computed. [2018-12-02 19:29:42,567 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 814 824) no Hoare annotation was computed. [2018-12-02 19:29:42,567 INFO L451 ceAbstractionStarter]: At program point L819(line 819) the Hoare annotation is: true [2018-12-02 19:29:42,567 INFO L448 ceAbstractionStarter]: For program point L819-1(line 819) no Hoare annotation was computed. [2018-12-02 19:29:42,567 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 806 813) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1))) [2018-12-02 19:29:42,567 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 806 813) no Hoare annotation was computed. [2018-12-02 19:29:42,567 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 806 813) no Hoare annotation was computed. [2018-12-02 19:29:42,567 INFO L444 ceAbstractionStarter]: At program point L769(line 769) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 19:29:42,567 INFO L444 ceAbstractionStarter]: At program point L765(line 765) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (< ~waterLevel~0 1) (and (<= 1 processEnvironment_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse1))) [2018-12-02 19:29:42,568 INFO L448 ceAbstractionStarter]: For program point L763(lines 763 771) no Hoare annotation was computed. [2018-12-02 19:29:42,568 INFO L444 ceAbstractionStarter]: At program point L761(line 761) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) .cse1))) [2018-12-02 19:29:42,568 INFO L448 ceAbstractionStarter]: For program point L761-1(line 761) no Hoare annotation was computed. [2018-12-02 19:29:42,568 INFO L448 ceAbstractionStarter]: For program point L759(lines 759 776) no Hoare annotation was computed. [2018-12-02 19:29:42,568 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 755 779) no Hoare annotation was computed. [2018-12-02 19:29:42,568 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 755 779) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 19:29:42,568 INFO L444 ceAbstractionStarter]: At program point L774(line 774) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-12-02 19:29:42,568 INFO L448 ceAbstractionStarter]: For program point L774-1(lines 755 779) no Hoare annotation was computed. [2018-12-02 19:29:42,568 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 540) no Hoare annotation was computed. [2018-12-02 19:29:42,568 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 530 543) no Hoare annotation was computed. [2018-12-02 19:29:42,568 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 530 543) the Hoare annotation is: true [2018-12-02 19:29:42,568 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 530 543) no Hoare annotation was computed. [2018-12-02 19:29:42,568 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 721 727) no Hoare annotation was computed. [2018-12-02 19:29:42,568 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 721 727) the Hoare annotation is: true [2018-12-02 19:29:42,569 INFO L448 ceAbstractionStarter]: For program point L929(lines 929 933) no Hoare annotation was computed. [2018-12-02 19:29:42,569 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 917 982) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 19:29:42,569 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 917 982) no Hoare annotation was computed. [2018-12-02 19:29:42,569 INFO L444 ceAbstractionStarter]: At program point L975(lines 926 976) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 19:29:42,569 INFO L448 ceAbstractionStarter]: For program point L965(lines 965 969) no Hoare annotation was computed. [2018-12-02 19:29:42,569 INFO L444 ceAbstractionStarter]: At program point L965-2(lines 957 970) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2018-12-02 19:29:42,569 INFO L448 ceAbstractionStarter]: For program point L928(lines 927 974) no Hoare annotation was computed. [2018-12-02 19:29:42,569 INFO L444 ceAbstractionStarter]: At program point L959(line 959) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2018-12-02 19:29:42,569 INFO L448 ceAbstractionStarter]: For program point L957(lines 957 970) no Hoare annotation was computed. [2018-12-02 19:29:42,569 INFO L444 ceAbstractionStarter]: At program point L949(line 949) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2018-12-02 19:29:42,569 INFO L448 ceAbstractionStarter]: For program point L947(lines 947 953) no Hoare annotation was computed. [2018-12-02 19:29:42,569 INFO L448 ceAbstractionStarter]: For program point L947-1(lines 947 953) no Hoare annotation was computed. [2018-12-02 19:29:42,570 INFO L444 ceAbstractionStarter]: At program point L972(lines 927 974) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2018-12-02 19:29:42,570 INFO L444 ceAbstractionStarter]: At program point L939(line 939) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-12-02 19:29:42,570 INFO L448 ceAbstractionStarter]: For program point L937(lines 937 943) no Hoare annotation was computed. [2018-12-02 19:29:42,570 INFO L448 ceAbstractionStarter]: For program point L937-1(lines 937 943) no Hoare annotation was computed. [2018-12-02 19:29:42,570 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 917 982) no Hoare annotation was computed. [2018-12-02 19:29:42,570 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 780 787) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)))) [2018-12-02 19:29:42,570 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 780 787) no Hoare annotation was computed. [2018-12-02 19:29:42,570 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 780 787) no Hoare annotation was computed. [2018-12-02 19:29:42,570 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 544 552) no Hoare annotation was computed. [2018-12-02 19:29:42,570 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 544 552) the Hoare annotation is: true [2018-12-02 19:29:42,570 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 544 552) no Hoare annotation was computed. [2018-12-02 19:29:42,570 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 19:29:42,570 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 19:29:42,570 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 19:29:42,570 INFO L444 ceAbstractionStarter]: At program point L800(line 800) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-02 19:29:42,571 INFO L448 ceAbstractionStarter]: For program point L800-1(lines 789 805) no Hoare annotation was computed. [2018-12-02 19:29:42,571 INFO L448 ceAbstractionStarter]: For program point L796(lines 796 802) no Hoare annotation was computed. [2018-12-02 19:29:42,571 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 789 805) no Hoare annotation was computed. [2018-12-02 19:29:42,571 INFO L444 ceAbstractionStarter]: At program point L794(line 794) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-02 19:29:42,571 INFO L448 ceAbstractionStarter]: For program point L794-1(line 794) no Hoare annotation was computed. [2018-12-02 19:29:42,571 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 789 805) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-02 19:29:42,571 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 870 888) no Hoare annotation was computed. [2018-12-02 19:29:42,571 INFO L448 ceAbstractionStarter]: For program point L879(lines 879 883) no Hoare annotation was computed. [2018-12-02 19:29:42,571 INFO L451 ceAbstractionStarter]: At program point L877(line 877) the Hoare annotation is: true [2018-12-02 19:29:42,571 INFO L448 ceAbstractionStarter]: For program point L879-2(lines 879 883) no Hoare annotation was computed. [2018-12-02 19:29:42,571 INFO L448 ceAbstractionStarter]: For program point L877-1(line 877) no Hoare annotation was computed. [2018-12-02 19:29:42,571 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 870 888) the Hoare annotation is: true [2018-12-02 19:29:42,571 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 870 888) no Hoare annotation was computed. [2018-12-02 19:29:42,571 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 521 529) the Hoare annotation is: true [2018-12-02 19:29:42,571 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 521 529) no Hoare annotation was computed. [2018-12-02 19:29:42,572 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 521 529) no Hoare annotation was computed. [2018-12-02 19:29:42,572 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 477 488) no Hoare annotation was computed. [2018-12-02 19:29:42,572 INFO L451 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 477 488) the Hoare annotation is: true [2018-12-02 19:29:42,572 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 477 488) no Hoare annotation was computed. [2018-12-02 19:29:42,572 INFO L444 ceAbstractionStarter]: At program point L703(line 703) the Hoare annotation is: (let ((.cse0 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1)) (or .cse2 .cse0 .cse1) (or .cse2 .cse1 (not (= |old(~waterLevel~0)| 1))))) [2018-12-02 19:29:42,572 INFO L448 ceAbstractionStarter]: For program point L701(lines 700 719) no Hoare annotation was computed. [2018-12-02 19:29:42,572 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 697 720) the Hoare annotation is: (let ((.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))))) [2018-12-02 19:29:42,572 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 697 720) no Hoare annotation was computed. [2018-12-02 19:29:42,572 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 697 720) no Hoare annotation was computed. [2018-12-02 19:29:42,572 INFO L444 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse0) (or (< |old(~waterLevel~0)| 2) .cse1)) (or .cse2 (= ~waterLevel~0 |old(~waterLevel~0)|) (< |old(~waterLevel~0)| 1) .cse1) (or .cse2 .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))))) [2018-12-02 19:29:42,572 INFO L444 ceAbstractionStarter]: At program point L708(lines 708 714) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (= ~systemActive~0 1))) (let ((.cse2 (and (<= 2 ~waterLevel~0) .cse0 .cse3)) (.cse1 (not .cse3))) (and (or (and .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse1 .cse2) (or (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse2 (or (< |old(~waterLevel~0)| 2) .cse1))))) [2018-12-02 19:29:42,572 INFO L448 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-12-02 19:29:42,572 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 556 585) no Hoare annotation was computed. [2018-12-02 19:29:42,573 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 556 585) the Hoare annotation is: true [2018-12-02 19:29:42,573 INFO L448 ceAbstractionStarter]: For program point L570(lines 570 574) no Hoare annotation was computed. [2018-12-02 19:29:42,573 INFO L451 ceAbstractionStarter]: At program point L570-1(lines 570 574) the Hoare annotation is: true [2018-12-02 19:29:42,573 INFO L448 ceAbstractionStarter]: For program point L567(line 567) no Hoare annotation was computed. [2018-12-02 19:29:42,573 INFO L451 ceAbstractionStarter]: At program point L566-2(lines 566 580) the Hoare annotation is: true [2018-12-02 19:29:42,573 INFO L451 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2018-12-02 19:29:42,573 INFO L448 ceAbstractionStarter]: For program point L562-1(line 562) no Hoare annotation was computed. [2018-12-02 19:29:42,573 INFO L451 ceAbstractionStarter]: At program point L581(lines 556 585) the Hoare annotation is: true [2018-12-02 19:29:42,573 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 489 497) the Hoare annotation is: true [2018-12-02 19:29:42,573 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 489 497) no Hoare annotation was computed. [2018-12-02 19:29:42,573 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 489 497) no Hoare annotation was computed. [2018-12-02 19:29:42,573 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 453 464) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-12-02 19:29:42,573 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 453 464) no Hoare annotation was computed. [2018-12-02 19:29:42,573 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 453 464) no Hoare annotation was computed. [2018-12-02 19:29:42,573 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 611 617) no Hoare annotation was computed. [2018-12-02 19:29:42,573 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 611 617) the Hoare annotation is: true [2018-12-02 19:29:42,574 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 19:29:42,574 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-12-02 19:29:42,574 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 19:29:42,574 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 19:29:42,574 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 908 915) no Hoare annotation was computed. [2018-12-02 19:29:42,574 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 908 915) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= ~waterLevel~0 1))) (or .cse0 (or (< ~waterLevel~0 2) .cse1)))) [2018-12-02 19:29:42,574 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 908 915) no Hoare annotation was computed. [2018-12-02 19:29:42,574 INFO L448 ceAbstractionStarter]: For program point L737(lines 737 745) no Hoare annotation was computed. [2018-12-02 19:29:42,574 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 729 753) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 19:29:42,574 INFO L444 ceAbstractionStarter]: At program point L735(line 735) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 19:29:42,574 INFO L448 ceAbstractionStarter]: For program point L735-1(line 735) no Hoare annotation was computed. [2018-12-02 19:29:42,574 INFO L448 ceAbstractionStarter]: For program point L733(lines 733 750) no Hoare annotation was computed. [2018-12-02 19:29:42,574 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 729 753) no Hoare annotation was computed. [2018-12-02 19:29:42,574 INFO L444 ceAbstractionStarter]: At program point L748(line 748) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-12-02 19:29:42,575 INFO L448 ceAbstractionStarter]: For program point L748-1(lines 729 753) no Hoare annotation was computed. [2018-12-02 19:29:42,575 INFO L444 ceAbstractionStarter]: At program point L743(line 743) the Hoare annotation is: (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 19:29:42,575 INFO L444 ceAbstractionStarter]: At program point L739(line 739) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 19:29:42,575 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 465 476) no Hoare annotation was computed. [2018-12-02 19:29:42,575 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 465 476) no Hoare annotation was computed. [2018-12-02 19:29:42,575 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 465 476) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1) (or (not (= 0 ~pumpRunning~0)) .cse1 .cse0 (not (= |old(~waterLevel~0)| 1))))) [2018-12-02 19:29:42,575 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 435 442) no Hoare annotation was computed. [2018-12-02 19:29:42,575 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 435 442) the Hoare annotation is: true [2018-12-02 19:29:42,575 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 435 442) no Hoare annotation was computed. [2018-12-02 19:29:42,575 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2018-12-02 19:29:42,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:29:42 BoogieIcfgContainer [2018-12-02 19:29:42,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 19:29:42,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 19:29:42,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 19:29:42,585 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 19:29:42,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:29:32" (3/4) ... [2018-12-02 19:29:42,589 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 19:29:42,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-02 19:29:42,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-02 19:29:42,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-02 19:29:42,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 19:29:42,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-02 19:29:42,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-02 19:29:42,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-02 19:29:42,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-02 19:29:42,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-02 19:29:42,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-02 19:29:42,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-02 19:29:42,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-12-02 19:29:42,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 19:29:42,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-02 19:29:42,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-02 19:29:42,601 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-12-02 19:29:42,601 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-02 19:29:42,601 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-02 19:29:42,602 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 19:29:42,602 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 19:29:42,602 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 19:29:42,623 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0 == \old(pumpRunning)) || (((pumpRunning == 0 && systemActive == 1) && splverifierCounter == 0) && \old(waterLevel) <= waterLevel)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0) [2018-12-02 19:29:42,623 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-12-02 19:29:42,647 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3b9038cb-09af-4065-823d-236108a5072d/bin-2019/utaipan/witness.graphml [2018-12-02 19:29:42,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 19:29:42,647 INFO L168 Benchmark]: Toolchain (without parser) took 10966.29 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 670.0 MB). Free memory was 948.1 MB in the beginning and 1.2 GB in the end (delta: -215.0 MB). Peak memory consumption was 455.0 MB. Max. memory is 11.5 GB. [2018-12-02 19:29:42,648 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 19:29:42,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-12-02 19:29:42,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 19:29:42,649 INFO L168 Benchmark]: Boogie Preprocessor took 21.63 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 19:29:42,649 INFO L168 Benchmark]: RCFGBuilder took 353.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-12-02 19:29:42,649 INFO L168 Benchmark]: TraceAbstraction took 10229.91 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 572.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -147.4 MB). Peak memory consumption was 688.3 MB. Max. memory is 11.5 GB. [2018-12-02 19:29:42,649 INFO L168 Benchmark]: Witness Printer took 61.80 ms. Allocated memory is still 1.7 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-12-02 19:29:42,651 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.63 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 353.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10229.91 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 572.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -147.4 MB). Peak memory consumption was 688.3 MB. Max. memory is 11.5 GB. * Witness Printer took 61.80 ms. Allocated memory is still 1.7 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 927]: Loop Invariant Derived loop invariant: (((!(0 == \old(pumpRunning)) || (((pumpRunning == 0 && systemActive == 1) && splverifierCounter == 0) && \old(waterLevel) <= waterLevel)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0) - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 160 locations, 1 error locations. SAFE Result, 10.1s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 1.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 2317 SDtfs, 1690 SDslu, 6544 SDs, 0 SdLazy, 3679 SolverSat, 714 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1599 GetRequests, 1463 SyntacticMatches, 19 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=745occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.6s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9978457493280808 AbsIntWeakeningRatio, 0.9051094890510949 AbsIntAvgWeakeningVarsNumRemoved, 62.88321167883212 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 225 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 1517 PreInvPairs, 1569 NumberOfFragments, 1048 HoareAnnotationTreeSize, 1517 FomulaSimplifications, 3339 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 66 FomulaSimplificationsInter, 5584 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2120 NumberOfCodeBlocks, 2120 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2757 ConstructedInterpolants, 0 QuantifiedInterpolants, 565065 SizeOfPredicates, 19 NumberOfNonLiveVariables, 3616 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 637/686 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...