./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product63_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product63_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/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 3f5feda30a80cf6aabd7a2a811c7fc0f92333d0d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:02:30,843 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:02:30,844 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:02:30,852 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:02:30,853 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:02:30,853 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:02:30,854 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:02:30,855 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:02:30,856 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:02:30,857 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:02:30,857 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:02:30,858 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:02:30,858 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:02:30,859 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:02:30,859 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:02:30,860 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:02:30,861 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:02:30,862 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:02:30,863 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:02:30,864 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:02:30,865 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:02:30,866 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:02:30,867 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:02:30,867 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:02:30,868 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:02:30,868 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:02:30,869 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:02:30,869 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:02:30,870 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:02:30,870 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:02:30,871 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:02:30,871 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:02:30,871 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:02:30,871 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:02:30,872 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:02:30,873 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:02:30,873 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 09:02:30,882 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:02:30,882 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:02:30,883 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:02:30,883 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:02:30,883 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:02:30,883 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:02:30,883 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:02:30,883 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 09:02:30,883 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:02:30,883 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:02:30,884 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 09:02:30,884 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 09:02:30,884 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:02:30,884 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:02:30,884 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:02:30,885 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:02:30,885 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:02:30,885 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:02:30,885 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:02:30,885 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:02:30,885 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:02:30,885 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:02:30,885 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:02:30,885 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:02:30,886 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:02:30,886 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:02:30,886 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:02:30,886 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:02:30,886 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:02:30,886 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:02:30,886 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:02:30,887 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:02:30,887 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:02:30,887 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 09:02:30,887 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:02:30,887 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:02:30,887 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 09:02:30,887 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_dd541b15-2e1a-44c6-bb94-cd34b606ae36/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 -> 3f5feda30a80cf6aabd7a2a811c7fc0f92333d0d [2018-11-18 09:02:30,909 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:02:30,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:02:30,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:02:30,921 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:02:30,921 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:02:30,922 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product63_true-unreach-call_false-termination.cil.c [2018-11-18 09:02:30,958 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/data/f0f6d7f4c/7f5d29f2d5934484b35945ce2b25d9e0/FLAG7f92f0a9d [2018-11-18 09:02:31,332 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:02:31,332 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/sv-benchmarks/c/product-lines/minepump_spec4_product63_true-unreach-call_false-termination.cil.c [2018-11-18 09:02:31,342 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/data/f0f6d7f4c/7f5d29f2d5934484b35945ce2b25d9e0/FLAG7f92f0a9d [2018-11-18 09:02:31,719 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/data/f0f6d7f4c/7f5d29f2d5934484b35945ce2b25d9e0 [2018-11-18 09:02:31,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:02:31,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:02:31,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:02:31,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:02:31,724 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:02:31,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:02:31" (1/1) ... [2018-11-18 09:02:31,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37764a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:31, skipping insertion in model container [2018-11-18 09:02:31,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:02:31" (1/1) ... [2018-11-18 09:02:31,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:02:31,762 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:02:31,953 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:02:31,961 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:02:32,058 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:02:32,076 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:02:32,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32 WrapperNode [2018-11-18 09:02:32,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:02:32,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:02:32,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:02:32,076 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:02:32,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (1/1) ... [2018-11-18 09:02:32,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (1/1) ... [2018-11-18 09:02:32,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:02:32,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:02:32,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:02:32,097 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:02:32,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (1/1) ... [2018-11-18 09:02:32,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (1/1) ... [2018-11-18 09:02:32,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (1/1) ... [2018-11-18 09:02:32,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (1/1) ... [2018-11-18 09:02:32,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (1/1) ... [2018-11-18 09:02:32,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (1/1) ... [2018-11-18 09:02:32,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (1/1) ... [2018-11-18 09:02:32,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:02:32,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:02:32,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:02:32,129 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:02:32,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/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 [2018-11-18 09:02:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 09:02:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 09:02:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 09:02:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 09:02:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:02:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:02:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-18 09:02:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-18 09:02:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 09:02:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 09:02:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:02:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 09:02:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 09:02:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 09:02:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 09:02:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 09:02:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 09:02:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 09:02:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 09:02:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 09:02:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 09:02:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 09:02:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 09:02:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 09:02:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 09:02:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 09:02:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 09:02:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 09:02:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 09:02:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 09:02:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 09:02:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 09:02:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 09:02:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 09:02:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 09:02:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 09:02:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 09:02:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 09:02:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 09:02:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 09:02:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 09:02:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 09:02:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 09:02:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 09:02:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 09:02:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 09:02:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 09:02:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 09:02:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 09:02:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 09:02:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 09:02:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 09:02:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 09:02:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 09:02:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 09:02:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 09:02:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 09:02:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:02:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:02:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 09:02:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 09:02:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 09:02:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 09:02:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:02:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:02:32,620 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:02:32,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:02:32 BoogieIcfgContainer [2018-11-18 09:02:32,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:02:32,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:02:32,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:02:32,624 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:02:32,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:02:31" (1/3) ... [2018-11-18 09:02:32,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0ec4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:02:32, skipping insertion in model container [2018-11-18 09:02:32,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:32" (2/3) ... [2018-11-18 09:02:32,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0ec4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:02:32, skipping insertion in model container [2018-11-18 09:02:32,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:02:32" (3/3) ... [2018-11-18 09:02:32,627 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63_true-unreach-call_false-termination.cil.c [2018-11-18 09:02:32,634 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:02:32,641 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:02:32,654 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:02:32,680 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:02:32,680 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:02:32,680 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:02:32,680 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:02:32,680 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:02:32,680 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:02:32,680 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:02:32,680 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:02:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2018-11-18 09:02:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 09:02:32,703 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:32,704 INFO L375 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] [2018-11-18 09:02:32,706 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:32,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:32,711 INFO L82 PathProgramCache]: Analyzing trace with hash -882659247, now seen corresponding path program 1 times [2018-11-18 09:02:32,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:32,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:32,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:32,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:32,754 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:32,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:02:32,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:02:32,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:02:32,931 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:32,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 09:02:32,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 09:02:32,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:02:32,946 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 2 states. [2018-11-18 09:02:32,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:32,971 INFO L93 Difference]: Finished difference Result 322 states and 399 transitions. [2018-11-18 09:02:32,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 09:02:32,972 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 09:02:32,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:32,982 INFO L225 Difference]: With dead ends: 322 [2018-11-18 09:02:32,982 INFO L226 Difference]: Without dead ends: 161 [2018-11-18 09:02:32,984 INFO L604 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 [2018-11-18 09:02:32,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-11-18 09:02:33,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2018-11-18 09:02:33,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-11-18 09:02:33,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 191 transitions. [2018-11-18 09:02:33,020 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 191 transitions. Word has length 46 [2018-11-18 09:02:33,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:33,020 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 191 transitions. [2018-11-18 09:02:33,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 09:02:33,021 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 191 transitions. [2018-11-18 09:02:33,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 09:02:33,023 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:33,023 INFO L375 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] [2018-11-18 09:02:33,023 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:33,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:33,024 INFO L82 PathProgramCache]: Analyzing trace with hash -528081224, now seen corresponding path program 1 times [2018-11-18 09:02:33,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:33,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:33,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:33,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:33,025 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:33,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:02:33,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:02:33,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:02:33,099 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:33,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:02:33,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:02:33,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:02:33,101 INFO L87 Difference]: Start difference. First operand 161 states and 191 transitions. Second operand 3 states. [2018-11-18 09:02:33,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:33,124 INFO L93 Difference]: Finished difference Result 263 states and 311 transitions. [2018-11-18 09:02:33,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:02:33,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 09:02:33,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:33,126 INFO L225 Difference]: With dead ends: 263 [2018-11-18 09:02:33,126 INFO L226 Difference]: Without dead ends: 151 [2018-11-18 09:02:33,127 INFO L604 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 [2018-11-18 09:02:33,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-11-18 09:02:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-11-18 09:02:33,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-11-18 09:02:33,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 178 transitions. [2018-11-18 09:02:33,139 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 178 transitions. Word has length 48 [2018-11-18 09:02:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:33,139 INFO L480 AbstractCegarLoop]: Abstraction has 151 states and 178 transitions. [2018-11-18 09:02:33,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:02:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 178 transitions. [2018-11-18 09:02:33,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 09:02:33,141 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:33,141 INFO L375 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] [2018-11-18 09:02:33,141 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:33,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:33,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1107481096, now seen corresponding path program 1 times [2018-11-18 09:02:33,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:33,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:33,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:33,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:33,143 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:02:33,283 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:02:33,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 09:02:33,283 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:33,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:02:33,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:02:33,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:02:33,284 INFO L87 Difference]: Start difference. First operand 151 states and 178 transitions. Second operand 7 states. [2018-11-18 09:02:33,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:33,688 INFO L93 Difference]: Finished difference Result 456 states and 553 transitions. [2018-11-18 09:02:33,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:02:33,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-18 09:02:33,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:33,692 INFO L225 Difference]: With dead ends: 456 [2018-11-18 09:02:33,692 INFO L226 Difference]: Without dead ends: 329 [2018-11-18 09:02:33,694 INFO L604 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 [2018-11-18 09:02:33,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2018-11-18 09:02:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 321. [2018-11-18 09:02:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2018-11-18 09:02:33,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 389 transitions. [2018-11-18 09:02:33,724 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 389 transitions. Word has length 52 [2018-11-18 09:02:33,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:33,725 INFO L480 AbstractCegarLoop]: Abstraction has 321 states and 389 transitions. [2018-11-18 09:02:33,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:02:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 389 transitions. [2018-11-18 09:02:33,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 09:02:33,727 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:33,727 INFO L375 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] [2018-11-18 09:02:33,730 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:33,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:33,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1540620602, now seen corresponding path program 1 times [2018-11-18 09:02:33,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:33,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:33,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:33,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:33,732 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:02:33,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:02:33,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 09:02:33,853 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:33,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:02:33,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:02:33,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:02:33,854 INFO L87 Difference]: Start difference. First operand 321 states and 389 transitions. Second operand 10 states. [2018-11-18 09:02:34,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:34,326 INFO L93 Difference]: Finished difference Result 1164 states and 1512 transitions. [2018-11-18 09:02:34,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 09:02:34,327 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2018-11-18 09:02:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:34,330 INFO L225 Difference]: With dead ends: 1164 [2018-11-18 09:02:34,330 INFO L226 Difference]: Without dead ends: 867 [2018-11-18 09:02:34,331 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:02:34,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2018-11-18 09:02:34,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 855. [2018-11-18 09:02:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2018-11-18 09:02:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1075 transitions. [2018-11-18 09:02:34,381 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1075 transitions. Word has length 58 [2018-11-18 09:02:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:34,381 INFO L480 AbstractCegarLoop]: Abstraction has 855 states and 1075 transitions. [2018-11-18 09:02:34,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:02:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1075 transitions. [2018-11-18 09:02:34,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 09:02:34,384 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:34,384 INFO L375 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] [2018-11-18 09:02:34,385 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:34,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:34,385 INFO L82 PathProgramCache]: Analyzing trace with hash -616428852, now seen corresponding path program 1 times [2018-11-18 09:02:34,385 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:34,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:34,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:34,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:34,386 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:02:34,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:02:34,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:02:34,451 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:34,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:02:34,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:02:34,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:02:34,452 INFO L87 Difference]: Start difference. First operand 855 states and 1075 transitions. Second operand 4 states. [2018-11-18 09:02:34,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:34,781 INFO L93 Difference]: Finished difference Result 2149 states and 2902 transitions. [2018-11-18 09:02:34,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:02:34,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-11-18 09:02:34,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:34,789 INFO L225 Difference]: With dead ends: 2149 [2018-11-18 09:02:34,790 INFO L226 Difference]: Without dead ends: 1318 [2018-11-18 09:02:34,792 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:02:34,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2018-11-18 09:02:34,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1174. [2018-11-18 09:02:34,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2018-11-18 09:02:34,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1459 transitions. [2018-11-18 09:02:34,856 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1459 transitions. Word has length 62 [2018-11-18 09:02:34,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:34,857 INFO L480 AbstractCegarLoop]: Abstraction has 1174 states and 1459 transitions. [2018-11-18 09:02:34,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:02:34,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1459 transitions. [2018-11-18 09:02:34,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-11-18 09:02:34,859 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:34,859 INFO L375 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] [2018-11-18 09:02:34,859 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:34,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:34,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1874605487, now seen corresponding path program 1 times [2018-11-18 09:02:34,859 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:34,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:34,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:34,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:34,860 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-18 09:02:34,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:02:34,936 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:02:34,937 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 91 with the following transitions: [2018-11-18 09:02:34,938 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [61], [63], [64], [65], [66], [78], [113], [117], [123], [127], [131], [134], [139], [145], [147], [150], [152], [155], [170], [171], [194], [195], [210], [217], [220], [255], [280], [284], [285], [288], [289], [290], [291], [292], [294], [295], [296], [297], [298], [299], [300], [301], [302], [316], [328], [329], [332], [333], [334], [335], [348], [349], [354], [355], [356] [2018-11-18 09:02:34,966 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:02:34,966 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:02:35,398 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:02:35,399 INFO L272 AbstractInterpreter]: Visited 60 different actions 72 times. Merged at 7 different actions 7 times. Never widened. Performed 2886 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2886 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 133 variables. [2018-11-18 09:02:35,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:35,410 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:02:35,802 INFO L227 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 97.7% of their original sizes. [2018-11-18 09:02:35,802 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:02:35,926 INFO L415 sIntCurrentIteration]: We unified 89 AI predicates to 89 [2018-11-18 09:02:35,926 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:02:35,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:02:35,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [7] total 24 [2018-11-18 09:02:35,927 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:35,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-18 09:02:35,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-18 09:02:35,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:02:35,928 INFO L87 Difference]: Start difference. First operand 1174 states and 1459 transitions. Second operand 19 states. [2018-11-18 09:02:40,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:40,177 INFO L93 Difference]: Finished difference Result 2456 states and 3080 transitions. [2018-11-18 09:02:40,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 09:02:40,178 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 90 [2018-11-18 09:02:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:40,181 INFO L225 Difference]: With dead ends: 2456 [2018-11-18 09:02:40,182 INFO L226 Difference]: Without dead ends: 1551 [2018-11-18 09:02:40,183 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 100 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2018-11-18 09:02:40,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2018-11-18 09:02:40,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1528. [2018-11-18 09:02:40,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1528 states. [2018-11-18 09:02:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1873 transitions. [2018-11-18 09:02:40,231 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1873 transitions. Word has length 90 [2018-11-18 09:02:40,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:40,232 INFO L480 AbstractCegarLoop]: Abstraction has 1528 states and 1873 transitions. [2018-11-18 09:02:40,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-18 09:02:40,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1873 transitions. [2018-11-18 09:02:40,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 09:02:40,235 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:40,235 INFO L375 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] [2018-11-18 09:02:40,235 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:40,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:40,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1710187595, now seen corresponding path program 1 times [2018-11-18 09:02:40,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:40,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:40,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:40,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:40,237 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:40,305 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 09:02:40,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:02:40,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:02:40,305 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:40,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:02:40,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:02:40,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:02:40,306 INFO L87 Difference]: Start difference. First operand 1528 states and 1873 transitions. Second operand 5 states. [2018-11-18 09:02:40,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:40,346 INFO L93 Difference]: Finished difference Result 2581 states and 3270 transitions. [2018-11-18 09:02:40,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:02:40,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2018-11-18 09:02:40,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:40,351 INFO L225 Difference]: With dead ends: 2581 [2018-11-18 09:02:40,351 INFO L226 Difference]: Without dead ends: 1560 [2018-11-18 09:02:40,353 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:02:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2018-11-18 09:02:40,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1542. [2018-11-18 09:02:40,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1542 states. [2018-11-18 09:02:40,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1885 transitions. [2018-11-18 09:02:40,401 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1885 transitions. Word has length 138 [2018-11-18 09:02:40,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:40,401 INFO L480 AbstractCegarLoop]: Abstraction has 1542 states and 1885 transitions. [2018-11-18 09:02:40,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:02:40,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1885 transitions. [2018-11-18 09:02:40,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 09:02:40,403 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:40,404 INFO L375 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] [2018-11-18 09:02:40,404 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:40,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:40,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1526941623, now seen corresponding path program 1 times [2018-11-18 09:02:40,404 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:40,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:40,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:40,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:40,405 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 09:02:40,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:02:40,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:02:40,471 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:40,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:02:40,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:02:40,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:02:40,472 INFO L87 Difference]: Start difference. First operand 1542 states and 1885 transitions. Second operand 5 states. [2018-11-18 09:02:41,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:41,091 INFO L93 Difference]: Finished difference Result 3154 states and 4048 transitions. [2018-11-18 09:02:41,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 09:02:41,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2018-11-18 09:02:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:41,100 INFO L225 Difference]: With dead ends: 3154 [2018-11-18 09:02:41,100 INFO L226 Difference]: Without dead ends: 2279 [2018-11-18 09:02:41,103 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:02:41,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2018-11-18 09:02:41,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2095. [2018-11-18 09:02:41,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2018-11-18 09:02:41,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2575 transitions. [2018-11-18 09:02:41,219 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2575 transitions. Word has length 138 [2018-11-18 09:02:41,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:41,220 INFO L480 AbstractCegarLoop]: Abstraction has 2095 states and 2575 transitions. [2018-11-18 09:02:41,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:02:41,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2575 transitions. [2018-11-18 09:02:41,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 09:02:41,224 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:41,224 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:02:41,224 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:41,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:41,224 INFO L82 PathProgramCache]: Analyzing trace with hash 374755578, now seen corresponding path program 1 times [2018-11-18 09:02:41,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:41,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:41,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:41,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:41,225 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:41,286 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 09:02:41,286 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:02:41,286 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:02:41,286 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-11-18 09:02:41,287 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [65], [66], [78], [81], [83], [84], [85], [86], [87], [90], [92], [95], [102], [105], [106], [109], [111], [113], [117], [123], [127], [131], [134], [137], [139], [145], [147], [150], [166], [167], [170], [171], [172], [174], [179], [182], [183], [185], [188], [192], [193], [194], [195], [203], [204], [207], [210], [214], [220], [250], [254], [255], [259], [262], [264], [267], [277], [280], [284], [285], [288], [289], [290], [291], [292], [294], [295], [296], [297], [298], [299], [300], [301], [302], [310], [311], [316], [318], [319], [320], [321], [322], [323], [326], [327], [328], [329], [334], [335], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [348], [349], [354], [355], [356], [358], [359], [360], [361] [2018-11-18 09:02:41,290 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:02:41,290 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:02:41,599 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:02:41,599 INFO L272 AbstractInterpreter]: Visited 66 different actions 98 times. Merged at 5 different actions 5 times. Never widened. Performed 5200 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5200 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 09:02:41,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:41,601 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:02:41,811 INFO L227 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 96.45% of their original sizes. [2018-11-18 09:02:41,811 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:02:41,882 INFO L415 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2018-11-18 09:02:41,882 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:02:41,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:02:41,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-18 09:02:41,883 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:41,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 09:02:41,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 09:02:41,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-11-18 09:02:41,883 INFO L87 Difference]: Start difference. First operand 2095 states and 2575 transitions. Second operand 16 states. [2018-11-18 09:02:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:45,374 INFO L93 Difference]: Finished difference Result 4766 states and 5857 transitions. [2018-11-18 09:02:45,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 09:02:45,374 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 152 [2018-11-18 09:02:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:45,384 INFO L225 Difference]: With dead ends: 4766 [2018-11-18 09:02:45,385 INFO L226 Difference]: Without dead ends: 2695 [2018-11-18 09:02:45,389 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 159 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2018-11-18 09:02:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2018-11-18 09:02:45,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2667. [2018-11-18 09:02:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2667 states. [2018-11-18 09:02:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3236 transitions. [2018-11-18 09:02:45,520 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3236 transitions. Word has length 152 [2018-11-18 09:02:45,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:45,520 INFO L480 AbstractCegarLoop]: Abstraction has 2667 states and 3236 transitions. [2018-11-18 09:02:45,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 09:02:45,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3236 transitions. [2018-11-18 09:02:45,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 09:02:45,525 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:45,525 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:02:45,526 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:45,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:45,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1337111613, now seen corresponding path program 1 times [2018-11-18 09:02:45,526 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:45,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:45,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:45,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:45,527 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:45,621 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 09:02:45,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:02:45,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 09:02:45,622 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:45,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:02:45,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:02:45,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:02:45,623 INFO L87 Difference]: Start difference. First operand 2667 states and 3236 transitions. Second operand 9 states. [2018-11-18 09:02:46,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:46,517 INFO L93 Difference]: Finished difference Result 6629 states and 8255 transitions. [2018-11-18 09:02:46,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 09:02:46,518 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2018-11-18 09:02:46,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:46,534 INFO L225 Difference]: With dead ends: 6629 [2018-11-18 09:02:46,534 INFO L226 Difference]: Without dead ends: 4558 [2018-11-18 09:02:46,540 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:02:46,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4558 states. [2018-11-18 09:02:46,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4558 to 4355. [2018-11-18 09:02:46,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4355 states. [2018-11-18 09:02:46,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 5243 transitions. [2018-11-18 09:02:46,737 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 5243 transitions. Word has length 152 [2018-11-18 09:02:46,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:46,738 INFO L480 AbstractCegarLoop]: Abstraction has 4355 states and 5243 transitions. [2018-11-18 09:02:46,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:02:46,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 5243 transitions. [2018-11-18 09:02:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 09:02:46,744 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:46,744 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:02:46,745 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:46,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:46,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1754047288, now seen corresponding path program 1 times [2018-11-18 09:02:46,745 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:46,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:46,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:46,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:46,746 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:46,824 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 09:02:46,825 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:02:46,825 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:02:46,825 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-11-18 09:02:46,825 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [65], [66], [78], [81], [83], [84], [85], [86], [87], [90], [92], [95], [102], [105], [106], [109], [111], [113], [117], [123], [127], [131], [137], [139], [142], [145], [147], [150], [166], [167], [170], [171], [172], [174], [179], [182], [183], [185], [188], [192], [193], [194], [195], [200], [202], [203], [204], [207], [210], [214], [220], [250], [254], [255], [259], [262], [264], [267], [277], [285], [288], [289], [290], [291], [292], [294], [295], [296], [297], [298], [299], [300], [301], [302], [310], [311], [316], [318], [319], [320], [321], [322], [323], [326], [327], [330], [331], [334], [335], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [348], [349], [354], [355], [356], [358], [359], [360], [361] [2018-11-18 09:02:46,828 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:02:46,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:02:47,096 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:02:47,097 INFO L272 AbstractInterpreter]: Visited 66 different actions 96 times. Merged at 3 different actions 3 times. Never widened. Performed 5189 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5189 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 09:02:47,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:47,106 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:02:47,238 INFO L227 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 96.43% of their original sizes. [2018-11-18 09:02:47,238 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:02:47,303 INFO L415 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2018-11-18 09:02:47,303 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:02:47,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:02:47,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-18 09:02:47,304 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:47,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 09:02:47,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 09:02:47,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-11-18 09:02:47,305 INFO L87 Difference]: Start difference. First operand 4355 states and 5243 transitions. Second operand 16 states. [2018-11-18 09:02:49,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:49,537 INFO L93 Difference]: Finished difference Result 7663 states and 9252 transitions. [2018-11-18 09:02:49,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 09:02:49,537 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 152 [2018-11-18 09:02:49,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:49,545 INFO L225 Difference]: With dead ends: 7663 [2018-11-18 09:02:49,546 INFO L226 Difference]: Without dead ends: 3704 [2018-11-18 09:02:49,551 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 166 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2018-11-18 09:02:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2018-11-18 09:02:49,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3694. [2018-11-18 09:02:49,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2018-11-18 09:02:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4420 transitions. [2018-11-18 09:02:49,654 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4420 transitions. Word has length 152 [2018-11-18 09:02:49,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:49,655 INFO L480 AbstractCegarLoop]: Abstraction has 3694 states and 4420 transitions. [2018-11-18 09:02:49,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 09:02:49,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4420 transitions. [2018-11-18 09:02:49,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-18 09:02:49,659 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:49,659 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:02:49,659 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:49,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:49,659 INFO L82 PathProgramCache]: Analyzing trace with hash 2088850369, now seen corresponding path program 1 times [2018-11-18 09:02:49,659 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:49,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:49,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:49,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:49,660 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:49,723 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-18 09:02:49,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:02:49,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:02:49,723 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:49,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:02:49,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:02:49,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:02:49,724 INFO L87 Difference]: Start difference. First operand 3694 states and 4420 transitions. Second operand 6 states. [2018-11-18 09:02:49,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:49,914 INFO L93 Difference]: Finished difference Result 3733 states and 4468 transitions. [2018-11-18 09:02:49,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 09:02:49,914 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-11-18 09:02:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:49,924 INFO L225 Difference]: With dead ends: 3733 [2018-11-18 09:02:49,924 INFO L226 Difference]: Without dead ends: 3730 [2018-11-18 09:02:49,925 INFO L604 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 [2018-11-18 09:02:49,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2018-11-18 09:02:50,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3694. [2018-11-18 09:02:50,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2018-11-18 09:02:50,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4410 transitions. [2018-11-18 09:02:50,021 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4410 transitions. Word has length 156 [2018-11-18 09:02:50,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:50,021 INFO L480 AbstractCegarLoop]: Abstraction has 3694 states and 4410 transitions. [2018-11-18 09:02:50,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:02:50,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4410 transitions. [2018-11-18 09:02:50,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-11-18 09:02:50,026 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:50,027 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:02:50,027 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:50,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:50,027 INFO L82 PathProgramCache]: Analyzing trace with hash 274613783, now seen corresponding path program 1 times [2018-11-18 09:02:50,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:50,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:50,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:50,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:50,028 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 09:02:50,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:02:50,127 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:02:50,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 183 with the following transitions: [2018-11-18 09:02:50,128 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [87], [90], [92], [98], [102], [105], [106], [110], [111], [112], [113], [117], [123], [127], [131], [134], [137], [139], [142], [147], [150], [166], [167], [168], [169], [170], [171], [172], [174], [179], [182], [183], [185], [190], [192], [193], [194], [195], [198], [200], [202], [203], [204], [207], [210], [214], [220], [250], [254], [255], [259], [262], [264], [267], [274], [277], [280], [284], [285], [288], [289], [290], [291], [292], [294], [295], [296], [297], [298], [299], [300], [301], [302], [304], [305], [308], [309], [310], [311], [314], [315], [316], [318], [319], [320], [321], [324], [325], [326], [327], [328], [329], [330], [331], [334], [335], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [348], [349], [354], [355], [356], [358], [359], [360], [361], [364], [365] [2018-11-18 09:02:50,130 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:02:50,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:02:50,317 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:02:50,317 INFO L272 AbstractInterpreter]: Visited 86 different actions 116 times. Merged at 6 different actions 6 times. Never widened. Performed 6584 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6584 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 09:02:50,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:50,322 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:02:50,471 INFO L227 lantSequenceWeakener]: Weakened 97 states. On average, predicates are now at 96.52% of their original sizes. [2018-11-18 09:02:50,471 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:02:50,639 INFO L415 sIntCurrentIteration]: We unified 181 AI predicates to 181 [2018-11-18 09:02:50,639 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:02:50,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:02:50,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [13] total 35 [2018-11-18 09:02:50,639 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:50,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-18 09:02:50,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-18 09:02:50,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2018-11-18 09:02:50,640 INFO L87 Difference]: Start difference. First operand 3694 states and 4410 transitions. Second operand 24 states. [2018-11-18 09:02:54,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:54,498 INFO L93 Difference]: Finished difference Result 5885 states and 7065 transitions. [2018-11-18 09:02:54,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 09:02:54,498 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 182 [2018-11-18 09:02:54,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:54,512 INFO L225 Difference]: With dead ends: 5885 [2018-11-18 09:02:54,513 INFO L226 Difference]: Without dead ends: 3916 [2018-11-18 09:02:54,518 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 196 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=202, Invalid=1280, Unknown=0, NotChecked=0, Total=1482 [2018-11-18 09:02:54,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2018-11-18 09:02:54,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3691. [2018-11-18 09:02:54,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3691 states. [2018-11-18 09:02:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 4400 transitions. [2018-11-18 09:02:54,730 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 4400 transitions. Word has length 182 [2018-11-18 09:02:54,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:54,731 INFO L480 AbstractCegarLoop]: Abstraction has 3691 states and 4400 transitions. [2018-11-18 09:02:54,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-18 09:02:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 4400 transitions. [2018-11-18 09:02:54,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-18 09:02:54,740 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:54,740 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:02:54,740 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:54,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:54,741 INFO L82 PathProgramCache]: Analyzing trace with hash 303352269, now seen corresponding path program 1 times [2018-11-18 09:02:54,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:54,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:54,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:54,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:54,742 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:54,977 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 09:02:54,978 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:02:54,978 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:02:54,978 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-11-18 09:02:54,978 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [87], [90], [92], [98], [102], [105], [106], [110], [111], [112], [113], [117], [123], [127], [131], [134], [137], [139], [145], [147], [150], [166], [167], [168], [169], [170], [171], [172], [174], [179], [182], [183], [185], [190], [192], [193], [194], [195], [203], [204], [207], [210], [214], [220], [250], [254], [255], [259], [262], [264], [267], [274], [277], [280], [284], [285], [288], [289], [290], [291], [292], [294], [295], [296], [297], [298], [299], [300], [301], [302], [304], [305], [308], [309], [310], [311], [314], [315], [316], [318], [319], [320], [321], [324], [325], [326], [327], [328], [329], [334], [335], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [348], [349], [354], [355], [356], [358], [359], [360], [361], [364], [365] [2018-11-18 09:02:54,982 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:02:54,982 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:02:55,683 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:02:55,683 INFO L272 AbstractInterpreter]: Visited 142 different actions 682 times. Merged at 16 different actions 44 times. Never widened. Performed 21131 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21131 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-11-18 09:02:55,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:55,686 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:02:55,686 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:02:55,687 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/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 [2018-11-18 09:02:55,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:55,694 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:02:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:55,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:02:55,918 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:02:55,919 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:02:56,266 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 09:02:56,292 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:02:56,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 09:02:56,292 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:02:56,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 09:02:56,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 09:02:56,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-11-18 09:02:56,293 INFO L87 Difference]: Start difference. First operand 3691 states and 4400 transitions. Second operand 14 states. [2018-11-18 09:02:57,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:57,592 INFO L93 Difference]: Finished difference Result 7388 states and 9724 transitions. [2018-11-18 09:02:57,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 09:02:57,592 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 174 [2018-11-18 09:02:57,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:57,609 INFO L225 Difference]: With dead ends: 7388 [2018-11-18 09:02:57,609 INFO L226 Difference]: Without dead ends: 5146 [2018-11-18 09:02:57,615 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 342 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-11-18 09:02:57,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5146 states. [2018-11-18 09:02:57,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5146 to 4104. [2018-11-18 09:02:57,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4104 states. [2018-11-18 09:02:57,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4104 states to 4104 states and 4912 transitions. [2018-11-18 09:02:57,830 INFO L78 Accepts]: Start accepts. Automaton has 4104 states and 4912 transitions. Word has length 174 [2018-11-18 09:02:57,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:57,831 INFO L480 AbstractCegarLoop]: Abstraction has 4104 states and 4912 transitions. [2018-11-18 09:02:57,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 09:02:57,831 INFO L276 IsEmpty]: Start isEmpty. Operand 4104 states and 4912 transitions. [2018-11-18 09:02:57,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-18 09:02:57,838 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:57,838 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:02:57,839 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:57,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:57,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1099501886, now seen corresponding path program 1 times [2018-11-18 09:02:57,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:57,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:57,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:57,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:57,840 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:57,903 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-11-18 09:02:57,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:02:57,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:02:57,903 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:57,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:02:57,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:02:57,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:02:57,904 INFO L87 Difference]: Start difference. First operand 4104 states and 4912 transitions. Second operand 4 states. [2018-11-18 09:02:58,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:02:58,120 INFO L93 Difference]: Finished difference Result 4538 states and 5443 transitions. [2018-11-18 09:02:58,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:02:58,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 176 [2018-11-18 09:02:58,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:02:58,123 INFO L225 Difference]: With dead ends: 4538 [2018-11-18 09:02:58,123 INFO L226 Difference]: Without dead ends: 1746 [2018-11-18 09:02:58,129 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:02:58,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2018-11-18 09:02:58,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1746. [2018-11-18 09:02:58,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1746 states. [2018-11-18 09:02:58,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2039 transitions. [2018-11-18 09:02:58,215 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2039 transitions. Word has length 176 [2018-11-18 09:02:58,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:02:58,215 INFO L480 AbstractCegarLoop]: Abstraction has 1746 states and 2039 transitions. [2018-11-18 09:02:58,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:02:58,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2039 transitions. [2018-11-18 09:02:58,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-11-18 09:02:58,221 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:02:58,221 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 09:02:58,221 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:02:58,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:02:58,221 INFO L82 PathProgramCache]: Analyzing trace with hash -724182716, now seen corresponding path program 2 times [2018-11-18 09:02:58,221 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:02:58,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:58,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:02:58,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:02:58,222 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:02:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:02:58,351 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 47 proven. 14 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-18 09:02:58,351 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:02:58,351 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:02:58,351 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 09:02:58,351 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 09:02:58,351 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:02:58,351 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/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 [2018-11-18 09:02:58,365 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 09:02:58,365 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 09:02:58,533 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 09:02:58,533 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 09:02:58,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:02:58,718 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 09:02:58,719 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:02:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 47 proven. 14 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-18 09:02:59,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:02:59,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-11-18 09:02:59,016 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:02:59,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:02:59,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:02:59,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-18 09:02:59,017 INFO L87 Difference]: Start difference. First operand 1746 states and 2039 transitions. Second operand 9 states. [2018-11-18 09:03:00,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:03:00,026 INFO L93 Difference]: Finished difference Result 3939 states and 4815 transitions. [2018-11-18 09:03:00,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 09:03:00,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 244 [2018-11-18 09:03:00,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:03:00,031 INFO L225 Difference]: With dead ends: 3939 [2018-11-18 09:03:00,031 INFO L226 Difference]: Without dead ends: 2753 [2018-11-18 09:03:00,034 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 482 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2018-11-18 09:03:00,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2018-11-18 09:03:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 2669. [2018-11-18 09:03:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2018-11-18 09:03:00,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3093 transitions. [2018-11-18 09:03:00,104 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3093 transitions. Word has length 244 [2018-11-18 09:03:00,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:03:00,104 INFO L480 AbstractCegarLoop]: Abstraction has 2669 states and 3093 transitions. [2018-11-18 09:03:00,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:03:00,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3093 transitions. [2018-11-18 09:03:00,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-11-18 09:03:00,108 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:03:00,108 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:03:00,108 INFO L423 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:03:00,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:03:00,109 INFO L82 PathProgramCache]: Analyzing trace with hash 665111298, now seen corresponding path program 1 times [2018-11-18 09:03:00,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:03:00,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:03:00,109 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:03:00,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:03:00,110 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:03:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:03:00,190 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-11-18 09:03:00,190 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:03:00,190 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:03:00,190 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-11-18 09:03:00,190 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [74], [76], [77], [78], [81], [83], [84], [87], [90], [92], [98], [102], [105], [106], [110], [111], [112], [113], [117], [123], [127], [131], [134], [137], [139], [145], [147], [150], [166], [167], [168], [169], [170], [171], [172], [174], [179], [182], [183], [185], [190], [192], [193], [194], [195], [203], [204], [207], [210], [214], [220], [250], [254], [255], [259], [262], [264], [267], [274], [277], [280], [284], [285], [288], [289], [290], [291], [292], [294], [295], [296], [297], [298], [299], [300], [301], [302], [304], [305], [308], [309], [310], [311], [314], [315], [316], [318], [319], [320], [321], [324], [325], [326], [327], [328], [329], [334], [335], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [348], [349], [354], [355], [356], [358], [359], [360], [361], [364], [365] [2018-11-18 09:03:00,192 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:03:00,192 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:03:01,104 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:03:01,104 INFO L272 AbstractInterpreter]: Visited 143 different actions 874 times. Merged at 19 different actions 68 times. Never widened. Performed 30159 root evaluator evaluations with a maximum evaluation depth of 5. Performed 30159 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-18 09:03:01,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:03:01,106 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:03:01,106 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:03:01,106 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/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 [2018-11-18 09:03:01,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:03:01,112 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:03:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:03:01,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:03:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-11-18 09:03:01,262 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:03:01,448 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-11-18 09:03:01,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:03:01,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 09:03:01,463 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:03:01,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:03:01,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:03:01,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 09:03:01,464 INFO L87 Difference]: Start difference. First operand 2669 states and 3093 transitions. Second operand 6 states. [2018-11-18 09:03:01,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:03:01,536 INFO L93 Difference]: Finished difference Result 4739 states and 5569 transitions. [2018-11-18 09:03:01,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:03:01,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2018-11-18 09:03:01,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:03:01,541 INFO L225 Difference]: With dead ends: 4739 [2018-11-18 09:03:01,541 INFO L226 Difference]: Without dead ends: 2634 [2018-11-18 09:03:01,544 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 483 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 09:03:01,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2018-11-18 09:03:01,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2634. [2018-11-18 09:03:01,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2634 states. [2018-11-18 09:03:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2634 states to 2634 states and 3040 transitions. [2018-11-18 09:03:01,609 INFO L78 Accepts]: Start accepts. Automaton has 2634 states and 3040 transitions. Word has length 244 [2018-11-18 09:03:01,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:03:01,609 INFO L480 AbstractCegarLoop]: Abstraction has 2634 states and 3040 transitions. [2018-11-18 09:03:01,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:03:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2634 states and 3040 transitions. [2018-11-18 09:03:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-11-18 09:03:01,612 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:03:01,613 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 09:03:01,613 INFO L423 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:03:01,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:03:01,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1800161461, now seen corresponding path program 1 times [2018-11-18 09:03:01,613 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:03:01,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:03:01,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:03:01,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:03:01,614 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:03:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:03:01,703 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 53 proven. 23 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 09:03:01,704 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:03:01,704 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:03:01,704 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-11-18 09:03:01,704 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [87], [90], [92], [98], [102], [105], [106], [109], [110], [111], [112], [113], [117], [123], [127], [131], [134], [137], [139], [145], [147], [150], [166], [167], [168], [169], [170], [171], [172], [174], [179], [182], [183], [185], [188], [190], [192], [193], [194], [195], [203], [204], [207], [210], [214], [220], [250], [254], [255], [259], [262], [264], [267], [274], [277], [280], [284], [285], [288], [289], [290], [291], [292], [294], [295], [296], [297], [298], [299], [300], [301], [302], [304], [305], [308], [309], [310], [311], [314], [315], [316], [318], [319], [320], [321], [324], [325], [326], [327], [328], [329], [334], [335], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [348], [349], [354], [355], [356], [358], [359], [360], [361], [364], [365] [2018-11-18 09:03:01,705 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:03:01,706 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:03:02,364 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:03:02,364 INFO L272 AbstractInterpreter]: Visited 144 different actions 782 times. Merged at 26 different actions 112 times. Never widened. Performed 21175 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21175 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-18 09:03:02,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:03:02,365 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:03:02,365 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:03:02,365 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/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 [2018-11-18 09:03:02,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:03:02,372 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:03:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:03:02,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:03:02,505 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 102 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-18 09:03:02,505 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:03:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 53 proven. 23 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 09:03:02,770 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:03:02,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-11-18 09:03:02,771 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:03:02,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 09:03:02,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 09:03:02,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-18 09:03:02,771 INFO L87 Difference]: Start difference. First operand 2634 states and 3040 transitions. Second operand 12 states. [2018-11-18 09:03:03,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:03:03,306 INFO L93 Difference]: Finished difference Result 4976 states and 5866 transitions. [2018-11-18 09:03:03,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 09:03:03,306 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 250 [2018-11-18 09:03:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:03:03,311 INFO L225 Difference]: With dead ends: 4976 [2018-11-18 09:03:03,312 INFO L226 Difference]: Without dead ends: 2768 [2018-11-18 09:03:03,316 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 500 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:03:03,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2018-11-18 09:03:03,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 2594. [2018-11-18 09:03:03,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2594 states. [2018-11-18 09:03:03,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2594 states to 2594 states and 2862 transitions. [2018-11-18 09:03:03,427 INFO L78 Accepts]: Start accepts. Automaton has 2594 states and 2862 transitions. Word has length 250 [2018-11-18 09:03:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:03:03,427 INFO L480 AbstractCegarLoop]: Abstraction has 2594 states and 2862 transitions. [2018-11-18 09:03:03,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 09:03:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2594 states and 2862 transitions. [2018-11-18 09:03:03,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-11-18 09:03:03,432 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:03:03,432 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 09:03:03,432 INFO L423 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:03:03,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:03:03,433 INFO L82 PathProgramCache]: Analyzing trace with hash -503570464, now seen corresponding path program 1 times [2018-11-18 09:03:03,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:03:03,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:03:03,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:03:03,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:03:03,434 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:03:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:03:03,543 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-11-18 09:03:03,543 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:03:03,544 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:03:03,544 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 303 with the following transitions: [2018-11-18 09:03:03,544 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [85], [86], [87], [90], [92], [95], [98], [102], [105], [106], [109], [110], [111], [112], [113], [117], [123], [127], [131], [134], [137], [139], [142], [145], [147], [150], [166], [167], [168], [169], [170], [171], [172], [174], [179], [182], [183], [185], [188], [190], [192], [193], [194], [195], [198], [200], [202], [203], [204], [207], [210], [214], [220], [250], [254], [255], [259], [262], [264], [267], [274], [277], [280], [284], [285], [288], [289], [290], [291], [292], [294], [295], [296], [297], [298], [299], [300], [301], [302], [304], [305], [308], [309], [310], [311], [314], [315], [316], [318], [319], [320], [321], [322], [323], [324], [325], [326], [327], [328], [329], [330], [331], [334], [335], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [348], [349], [354], [355], [356], [358], [359], [360], [361], [364], [365] [2018-11-18 09:03:03,545 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:03:03,545 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:03:05,207 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:03:05,207 INFO L272 AbstractInterpreter]: Visited 155 different actions 1595 times. Merged at 34 different actions 251 times. Never widened. Performed 53613 root evaluator evaluations with a maximum evaluation depth of 5. Performed 53613 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 39 fixpoints after 7 different actions. Largest state had 132 variables. [2018-11-18 09:03:05,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:03:05,214 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:03:05,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:03:05,214 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:03:05,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:03:05,221 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:03:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:03:05,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:03:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 09:03:05,386 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:03:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 105 proven. 13 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2018-11-18 09:03:06,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:03:06,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 18 [2018-11-18 09:03:06,317 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:03:06,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 09:03:06,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 09:03:06,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-11-18 09:03:06,318 INFO L87 Difference]: Start difference. First operand 2594 states and 2862 transitions. Second operand 8 states. [2018-11-18 09:03:06,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:03:06,584 INFO L93 Difference]: Finished difference Result 4469 states and 4985 transitions. [2018-11-18 09:03:06,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 09:03:06,585 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 302 [2018-11-18 09:03:06,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:03:06,590 INFO L225 Difference]: With dead ends: 4469 [2018-11-18 09:03:06,590 INFO L226 Difference]: Without dead ends: 2356 [2018-11-18 09:03:06,593 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 584 SyntacticMatches, 9 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-11-18 09:03:06,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2018-11-18 09:03:06,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2356. [2018-11-18 09:03:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2356 states. [2018-11-18 09:03:06,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 2588 transitions. [2018-11-18 09:03:06,675 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 2588 transitions. Word has length 302 [2018-11-18 09:03:06,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:03:06,675 INFO L480 AbstractCegarLoop]: Abstraction has 2356 states and 2588 transitions. [2018-11-18 09:03:06,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 09:03:06,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 2588 transitions. [2018-11-18 09:03:06,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-11-18 09:03:06,679 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:03:06,679 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 09:03:06,679 INFO L423 AbstractCegarLoop]: === Iteration 20 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:03:06,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:03:06,680 INFO L82 PathProgramCache]: Analyzing trace with hash 565840608, now seen corresponding path program 2 times [2018-11-18 09:03:06,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:03:06,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:03:06,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:03:06,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:03:06,681 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:03:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:03:06,833 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2018-11-18 09:03:06,833 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:03:06,833 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:03:06,833 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 09:03:06,833 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 09:03:06,834 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:03:06,834 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:03:06,844 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 09:03:06,845 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 09:03:06,996 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 09:03:06,996 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 09:03:07,002 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:03:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-18 09:03:07,040 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:03:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2018-11-18 09:03:07,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:03:07,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-18 09:03:07,300 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:03:07,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:03:07,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:03:07,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:03:07,301 INFO L87 Difference]: Start difference. First operand 2356 states and 2588 transitions. Second operand 6 states. [2018-11-18 09:03:07,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:03:07,364 INFO L93 Difference]: Finished difference Result 4309 states and 4819 transitions. [2018-11-18 09:03:07,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:03:07,365 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 302 [2018-11-18 09:03:07,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:03:07,368 INFO L225 Difference]: With dead ends: 4309 [2018-11-18 09:03:07,369 INFO L226 Difference]: Without dead ends: 2434 [2018-11-18 09:03:07,371 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 599 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:03:07,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2018-11-18 09:03:07,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2406. [2018-11-18 09:03:07,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2406 states. [2018-11-18 09:03:07,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 2638 transitions. [2018-11-18 09:03:07,473 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 2638 transitions. Word has length 302 [2018-11-18 09:03:07,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:03:07,473 INFO L480 AbstractCegarLoop]: Abstraction has 2406 states and 2638 transitions. [2018-11-18 09:03:07,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:03:07,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 2638 transitions. [2018-11-18 09:03:07,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-11-18 09:03:07,476 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:03:07,476 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 09:03:07,476 INFO L423 AbstractCegarLoop]: === Iteration 21 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:03:07,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:03:07,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1156162078, now seen corresponding path program 1 times [2018-11-18 09:03:07,477 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:03:07,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:03:07,477 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:03:07,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:03:07,478 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:03:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:03:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 78 proven. 6 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2018-11-18 09:03:07,585 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:03:07,585 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:03:07,585 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 303 with the following transitions: [2018-11-18 09:03:07,585 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [85], [86], [87], [90], [92], [95], [98], [102], [105], [106], [109], [110], [111], [112], [113], [117], [123], [127], [131], [134], [137], [139], [142], [145], [147], [150], [166], [167], [168], [169], [170], [171], [172], [174], [179], [182], [183], [185], [190], [192], [193], [194], [195], [198], [200], [202], [203], [204], [207], [210], [214], [220], [250], [254], [255], [259], [262], [264], [267], [274], [277], [280], [284], [285], [288], [289], [290], [291], [292], [294], [295], [296], [297], [298], [299], [300], [301], [302], [304], [305], [308], [309], [310], [311], [314], [315], [316], [318], [319], [320], [321], [322], [323], [324], [325], [326], [327], [328], [329], [330], [331], [334], [335], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [348], [349], [354], [355], [356], [358], [359], [360], [361], [364], [365] [2018-11-18 09:03:07,587 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:03:07,587 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:03:09,319 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:03:09,319 INFO L272 AbstractInterpreter]: Visited 154 different actions 1513 times. Merged at 28 different actions 178 times. Never widened. Performed 61629 root evaluator evaluations with a maximum evaluation depth of 5. Performed 61629 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 30 fixpoints after 6 different actions. Largest state had 132 variables. [2018-11-18 09:03:09,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:03:09,320 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:03:09,320 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:03:09,320 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:03:09,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:03:09,327 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:03:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:03:09,404 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:03:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-11-18 09:03:09,441 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:03:09,667 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 78 proven. 6 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2018-11-18 09:03:09,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:03:09,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 09:03:09,682 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:03:09,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:03:09,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:03:09,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 09:03:09,682 INFO L87 Difference]: Start difference. First operand 2406 states and 2638 transitions. Second operand 5 states. [2018-11-18 09:03:09,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:03:09,724 INFO L93 Difference]: Finished difference Result 3050 states and 3371 transitions. [2018-11-18 09:03:09,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:03:09,725 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2018-11-18 09:03:09,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:03:09,725 INFO L225 Difference]: With dead ends: 3050 [2018-11-18 09:03:09,725 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:03:09,728 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 601 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 09:03:09,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:03:09,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:03:09,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:03:09,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:03:09,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 302 [2018-11-18 09:03:09,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:03:09,729 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:03:09,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:03:09,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:03:09,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:03:09,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:03:09,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:09,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,545 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,936 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,942 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:10,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,098 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:03:11,271 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 25 [2018-11-18 09:03:11,746 WARN L180 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 49 [2018-11-18 09:03:11,910 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 37 [2018-11-18 09:03:12,349 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 25 [2018-11-18 09:03:12,642 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 37 [2018-11-18 09:03:12,892 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 41 [2018-11-18 09:03:13,207 WARN L180 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 46 [2018-11-18 09:03:13,490 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 30 [2018-11-18 09:03:13,757 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 41 [2018-11-18 09:03:14,179 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 36 [2018-11-18 09:03:14,337 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2018-11-18 09:03:14,900 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 30 [2018-11-18 09:03:15,280 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 31 [2018-11-18 09:03:15,396 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 40 [2018-11-18 09:03:15,681 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 38 [2018-11-18 09:03:15,932 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 29 [2018-11-18 09:03:15,947 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 528 534) the Hoare annotation is: true [2018-11-18 09:03:15,948 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 528 534) no Hoare annotation was computed. [2018-11-18 09:03:15,948 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 535 543) no Hoare annotation was computed. [2018-11-18 09:03:15,948 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 535 543) the Hoare annotation is: true [2018-11-18 09:03:15,948 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 535 543) no Hoare annotation was computed. [2018-11-18 09:03:15,948 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 548 572) the Hoare annotation is: true [2018-11-18 09:03:15,948 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 548 572) no Hoare annotation was computed. [2018-11-18 09:03:15,948 INFO L421 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse2 .cse3) (or .cse0 (not (= ~systemActive~0 0))))) [2018-11-18 09:03:15,948 INFO L425 ceAbstractionStarter]: For program point L560(lines 560 566) no Hoare annotation was computed. [2018-11-18 09:03:15,948 INFO L421 ceAbstractionStarter]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse2 .cse3))) [2018-11-18 09:03:15,948 INFO L425 ceAbstractionStarter]: For program point L558-1(line 558) no Hoare annotation was computed. [2018-11-18 09:03:15,948 INFO L425 ceAbstractionStarter]: For program point L556(lines 556 569) no Hoare annotation was computed. [2018-11-18 09:03:15,948 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 548 572) no Hoare annotation was computed. [2018-11-18 09:03:15,948 INFO L428 ceAbstractionStarter]: At program point L554(line 554) the Hoare annotation is: true [2018-11-18 09:03:15,948 INFO L425 ceAbstractionStarter]: For program point L554-1(line 554) no Hoare annotation was computed. [2018-11-18 09:03:15,949 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 486 508) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 09:03:15,949 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 486 508) no Hoare annotation was computed. [2018-11-18 09:03:15,949 INFO L421 ceAbstractionStarter]: At program point L498(line 498) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= main_~tmp~3 ~waterLevel~0) (= main_~tmp~3 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 09:03:15,949 INFO L421 ceAbstractionStarter]: At program point L498-1(line 498) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= main_~tmp~3 ~waterLevel~0) (= main_~tmp~3 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 09:03:15,949 INFO L425 ceAbstractionStarter]: For program point L496(lines 496 503) no Hoare annotation was computed. [2018-11-18 09:03:15,949 INFO L425 ceAbstractionStarter]: For program point L496-1(lines 496 503) no Hoare annotation was computed. [2018-11-18 09:03:15,949 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-18 09:03:15,949 INFO L421 ceAbstractionStarter]: At program point L493(line 493) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 09:03:15,949 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 486 508) no Hoare annotation was computed. [2018-11-18 09:03:15,949 INFO L421 ceAbstractionStarter]: At program point L492(line 492) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 09:03:15,949 INFO L421 ceAbstractionStarter]: At program point L492-1(line 492) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 09:03:15,950 INFO L421 ceAbstractionStarter]: At program point L769(line 769) the Hoare annotation is: (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse3 .cse0 .cse1) (or .cse3 .cse0 .cse1 .cse2))) [2018-11-18 09:03:15,950 INFO L421 ceAbstractionStarter]: At program point L765(line 765) the Hoare annotation is: (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (and (<= 1 processEnvironment__wrappee__methaneQuery_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse3 .cse0 .cse1) (or .cse3 .cse0 .cse1 .cse2))) [2018-11-18 09:03:15,950 INFO L425 ceAbstractionStarter]: For program point L763(lines 763 771) no Hoare annotation was computed. [2018-11-18 09:03:15,950 INFO L421 ceAbstractionStarter]: At program point L761(line 761) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or .cse1 (not (= 1 |old(~pumpRunning~0)|)) .cse2 .cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-18 09:03:15,950 INFO L425 ceAbstractionStarter]: For program point L761-1(line 761) no Hoare annotation was computed. [2018-11-18 09:03:15,950 INFO L425 ceAbstractionStarter]: For program point L759(lines 759 776) no Hoare annotation was computed. [2018-11-18 09:03:15,950 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 755 779) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 (not (= 1 |old(~pumpRunning~0)|)) .cse2 .cse4 .cse3))) [2018-11-18 09:03:15,950 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 755 779) no Hoare annotation was computed. [2018-11-18 09:03:15,950 INFO L421 ceAbstractionStarter]: At program point L774(line 774) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse1 (not (= 1 |old(~pumpRunning~0)|)) .cse2 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse4))) [2018-11-18 09:03:15,951 INFO L425 ceAbstractionStarter]: For program point L774-1(lines 755 779) no Hoare annotation was computed. [2018-11-18 09:03:15,951 INFO L425 ceAbstractionStarter]: For program point stopSystemEXIT(lines 933 947) no Hoare annotation was computed. [2018-11-18 09:03:15,951 INFO L421 ceAbstractionStarter]: At program point L939(line 939) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (not (= 0 |old(~pumpRunning~0)|)) (or (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2)) (and (not (= ~systemActive~0 0)) .cse0)) (or (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 1) .cse0)))) [2018-11-18 09:03:15,951 INFO L425 ceAbstractionStarter]: For program point L937(lines 937 943) no Hoare annotation was computed. [2018-11-18 09:03:15,951 INFO L421 ceAbstractionStarter]: At program point stopSystemENTRY(lines 933 947) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= |old(~systemActive~0)| 0)) (.cse4 (and (not .cse0) .cse1))) (and (or (and .cse0 .cse1) (not .cse2) .cse3) (or .cse2 .cse3 .cse4) (or (or .cse2 (< ~waterLevel~0 2)) .cse4) (or (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 1) .cse1))))) [2018-11-18 09:03:15,951 INFO L425 ceAbstractionStarter]: For program point stopSystemFINAL(lines 933 947) no Hoare annotation was computed. [2018-11-18 09:03:15,951 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 850 858) no Hoare annotation was computed. [2018-11-18 09:03:15,951 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 850 858) the Hoare annotation is: true [2018-11-18 09:03:15,951 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 850 858) no Hoare annotation was computed. [2018-11-18 09:03:15,951 INFO L425 ceAbstractionStarter]: For program point L923(lines 923 927) no Hoare annotation was computed. [2018-11-18 09:03:15,951 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 914 932) the Hoare annotation is: true [2018-11-18 09:03:15,951 INFO L428 ceAbstractionStarter]: At program point L921(line 921) the Hoare annotation is: true [2018-11-18 09:03:15,952 INFO L425 ceAbstractionStarter]: For program point L923-2(lines 923 927) no Hoare annotation was computed. [2018-11-18 09:03:15,952 INFO L425 ceAbstractionStarter]: For program point L921-1(line 921) no Hoare annotation was computed. [2018-11-18 09:03:15,952 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 914 932) no Hoare annotation was computed. [2018-11-18 09:03:15,952 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 914 932) no Hoare annotation was computed. [2018-11-18 09:03:15,952 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 521 527) no Hoare annotation was computed. [2018-11-18 09:03:15,952 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 521 527) the Hoare annotation is: true [2018-11-18 09:03:15,952 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 473 482) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 09:03:15,952 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 473 482) no Hoare annotation was computed. [2018-11-18 09:03:15,952 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 473 482) no Hoare annotation was computed. [2018-11-18 09:03:15,952 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 839 849) the Hoare annotation is: true [2018-11-18 09:03:15,952 INFO L428 ceAbstractionStarter]: At program point L844(line 844) the Hoare annotation is: true [2018-11-18 09:03:15,952 INFO L425 ceAbstractionStarter]: For program point L844-1(line 844) no Hoare annotation was computed. [2018-11-18 09:03:15,952 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 839 849) no Hoare annotation was computed. [2018-11-18 09:03:15,953 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 839 849) no Hoare annotation was computed. [2018-11-18 09:03:15,953 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 831 838) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (or (= ~systemActive~0 0) (< ~waterLevel~0 2)) .cse0) (or (not (= ~systemActive~0 1)) .cse0))) [2018-11-18 09:03:15,953 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 831 838) no Hoare annotation was computed. [2018-11-18 09:03:15,953 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 831 838) no Hoare annotation was computed. [2018-11-18 09:03:15,953 INFO L421 ceAbstractionStarter]: At program point L800(line 800) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse3 .cse5) (or .cse1 .cse2 .cse3 .cse6) (or .cse4 .cse1 .cse3 .cse5 .cse6))) [2018-11-18 09:03:15,953 INFO L425 ceAbstractionStarter]: For program point L800-1(lines 781 805) no Hoare annotation was computed. [2018-11-18 09:03:15,953 INFO L421 ceAbstractionStarter]: At program point L795(line 795) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse3) (or .cse4 .cse1 .cse3 .cse5) (or (and (= processEnvironment_~tmp~7 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse1 .cse2 .cse3 .cse5))) [2018-11-18 09:03:15,953 INFO L421 ceAbstractionStarter]: At program point L791(line 791) the Hoare annotation is: (let ((.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (and (= processEnvironment_~tmp~7 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse3) (or .cse5 .cse1 .cse3 .cse4))) [2018-11-18 09:03:15,953 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 781 805) no Hoare annotation was computed. [2018-11-18 09:03:15,953 INFO L425 ceAbstractionStarter]: For program point L789(lines 789 797) no Hoare annotation was computed. [2018-11-18 09:03:15,954 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 781 805) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 1)) (.cse5 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse4 .cse2 .cse5 .cse3) (or .cse1 .cse2 .cse3 .cse4 .cse6) (or .cse2 .cse5 .cse3 .cse6 .cse4))) [2018-11-18 09:03:15,954 INFO L421 ceAbstractionStarter]: At program point L787(line 787) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (not (= ~systemActive~0 1))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse2 .cse4) (or .cse5 .cse2 .cse4 .cse6) (or .cse2 .cse3 .cse4 .cse6 .cse1))) [2018-11-18 09:03:15,954 INFO L425 ceAbstractionStarter]: For program point L787-1(line 787) no Hoare annotation was computed. [2018-11-18 09:03:15,954 INFO L425 ceAbstractionStarter]: For program point L785(lines 785 802) no Hoare annotation was computed. [2018-11-18 09:03:15,954 INFO L425 ceAbstractionStarter]: For program point L662(lines 662 668) no Hoare annotation was computed. [2018-11-18 09:03:15,954 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 658 671) no Hoare annotation was computed. [2018-11-18 09:03:15,954 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 658 671) the Hoare annotation is: true [2018-11-18 09:03:15,954 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 658 671) no Hoare annotation was computed. [2018-11-18 09:03:15,954 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 721 727) no Hoare annotation was computed. [2018-11-18 09:03:15,954 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 721 727) the Hoare annotation is: true [2018-11-18 09:03:15,954 INFO L425 ceAbstractionStarter]: For program point L960(lines 959 1006) no Hoare annotation was computed. [2018-11-18 09:03:15,955 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 949 1014) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 09:03:15,955 INFO L425 ceAbstractionStarter]: For program point L989(lines 989 1002) no Hoare annotation was computed. [2018-11-18 09:03:15,955 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 949 1014) no Hoare annotation was computed. [2018-11-18 09:03:15,955 INFO L421 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (= ~systemActive~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 1 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) .cse1 .cse2) (and (and .cse3 .cse4 .cse1 .cse2) (= ~pumpRunning~0 1)) (and (= ~systemActive~0 0) .cse0 .cse2) (and (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (and (= ~waterLevel~0 1) .cse1) .cse2) (and .cse3 .cse4 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 09:03:15,955 INFO L425 ceAbstractionStarter]: For program point L979(lines 979 985) no Hoare annotation was computed. [2018-11-18 09:03:15,955 INFO L425 ceAbstractionStarter]: For program point L979-1(lines 979 985) no Hoare annotation was computed. [2018-11-18 09:03:15,955 INFO L421 ceAbstractionStarter]: At program point L1004(lines 959 1006) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse2 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= ~systemActive~0 0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse3 .cse2 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) .cse3 (= ~pumpRunning~0 0) .cse2 .cse1))) [2018-11-18 09:03:15,955 INFO L421 ceAbstractionStarter]: At program point L971(line 971) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse3 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= ~systemActive~0 0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse1) (and (= 0 ~methaneLevelCritical~0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse3 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) .cse2 (= ~pumpRunning~0 0) .cse3 .cse1))) [2018-11-18 09:03:15,955 INFO L425 ceAbstractionStarter]: For program point L969(lines 969 975) no Hoare annotation was computed. [2018-11-18 09:03:15,955 INFO L425 ceAbstractionStarter]: For program point L969-1(lines 969 975) no Hoare annotation was computed. [2018-11-18 09:03:15,955 INFO L425 ceAbstractionStarter]: For program point L961(lines 961 965) no Hoare annotation was computed. [2018-11-18 09:03:15,956 INFO L425 ceAbstractionStarter]: For program point L959-1(lines 959 1006) no Hoare annotation was computed. [2018-11-18 09:03:15,956 INFO L421 ceAbstractionStarter]: At program point L1007(lines 958 1008) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 09:03:15,956 INFO L421 ceAbstractionStarter]: At program point L997(line 997) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) .cse0) (not (= |old(~systemActive~0)| 1)) (and (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 0))) (not (= 0 |old(~pumpRunning~0)|)) (and (= ~systemActive~0 1) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 09:03:15,956 INFO L425 ceAbstractionStarter]: For program point L995(lines 995 1001) no Hoare annotation was computed. [2018-11-18 09:03:15,956 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 949 1014) no Hoare annotation was computed. [2018-11-18 09:03:15,956 INFO L421 ceAbstractionStarter]: At program point L995-1(lines 989 1002) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse5 (= 0 ~pumpRunning~0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse2 (= ~systemActive~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2 .cse3) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse5 .cse4 .cse6 .cse2 .cse3) (and (= ~systemActive~0 0) .cse5 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) .cse6 (= ~pumpRunning~0 0) .cse2 .cse3))) [2018-11-18 09:03:15,956 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 806 813) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (or (< ~waterLevel~0 2) (not (= ~methaneLevelCritical~0 0)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))))) [2018-11-18 09:03:15,956 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 806 813) no Hoare annotation was computed. [2018-11-18 09:03:15,956 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 806 813) no Hoare annotation was computed. [2018-11-18 09:03:15,956 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 672 680) no Hoare annotation was computed. [2018-11-18 09:03:15,956 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 672 680) the Hoare annotation is: true [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 672 680) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 814 830) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L421 ceAbstractionStarter]: At program point L825(line 825) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-11-18 09:03:15,957 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 814 830) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0 .cse2 .cse3))) [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point L825-1(lines 814 830) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point L821(lines 821 827) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L421 ceAbstractionStarter]: At program point L819(line 819) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0 .cse2 .cse3))) [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point L819-1(line 819) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 895 913) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point L904(lines 904 908) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L428 ceAbstractionStarter]: At program point L902(line 902) the Hoare annotation is: true [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point L904-2(lines 904 908) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 895 913) the Hoare annotation is: true [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point L902-1(line 902) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 895 913) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 649 657) the Hoare annotation is: true [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 649 657) no Hoare annotation was computed. [2018-11-18 09:03:15,957 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 649 657) no Hoare annotation was computed. [2018-11-18 09:03:15,958 INFO L425 ceAbstractionStarter]: For program point L609-1(lines 605 616) no Hoare annotation was computed. [2018-11-18 09:03:15,958 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 605 616) the Hoare annotation is: (let ((.cse6 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse5 (< ~waterLevel~0 1)) (.cse3 (not .cse6)) (.cse4 (not (= ~systemActive~0 1))) (.cse2 (not (= ~systemActive~0 0))) (.cse8 (= ~methaneLevelCritical~0 1)) (.cse7 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse9 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (or (< ~waterLevel~0 2) .cse4 .cse3) .cse0 (not (= 1 ~pumpRunning~0))) (or (< |old(~methaneLevelCritical~0)| 1) .cse1 .cse5 .cse4 (<= 1 ~methaneLevelCritical~0)) (or (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2 .cse6) (or .cse7 .cse1 .cse4 .cse8 .cse9) (or .cse0 .cse1 .cse5 .cse4 .cse3) (or .cse7 .cse8 .cse1 .cse4 (not (= ~waterLevel~0 2))) (or .cse2 .cse8 (or .cse7 .cse1 .cse9))))) [2018-11-18 09:03:15,958 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 605 616) no Hoare annotation was computed. [2018-11-18 09:03:15,958 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 617 625) the Hoare annotation is: true [2018-11-18 09:03:15,958 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 617 625) no Hoare annotation was computed. [2018-11-18 09:03:15,958 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 617 625) no Hoare annotation was computed. [2018-11-18 09:03:15,958 INFO L421 ceAbstractionStarter]: At program point L703(line 703) the Hoare annotation is: (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (< |old(~waterLevel~0)| 1)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse6 (< ~methaneLevelCritical~0 1)) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse4 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 (or (or .cse1 .cse2 .cse3) .cse4)) (or .cse5 (not (= ~systemActive~0 0))) (or .cse6 .cse5 .cse7 .cse2) (or .cse5 .cse7 .cse2 .cse3) (or .cse6 (or .cse1 .cse2) .cse0 .cse4))) [2018-11-18 09:03:15,958 INFO L425 ceAbstractionStarter]: For program point L701(lines 700 719) no Hoare annotation was computed. [2018-11-18 09:03:15,958 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 697 720) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse2 (< ~methaneLevelCritical~0 1)) (.cse4 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse6 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (not (= ~systemActive~0 0))) (or .cse2 .cse1 (< |old(~waterLevel~0)| 1) .cse3 .cse0) (or .cse0 (or (or .cse4 .cse3 .cse5) .cse6)) (or (or .cse1 .cse4 .cse3 .cse5) .cse0) (or .cse0 .cse1 .cse3 (not (= |old(~waterLevel~0)| 1)) .cse5) (or .cse2 (or .cse4 .cse3) .cse0 .cse6))) [2018-11-18 09:03:15,958 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 697 720) no Hoare annotation was computed. [2018-11-18 09:03:15,958 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 697 720) no Hoare annotation was computed. [2018-11-18 09:03:15,958 INFO L421 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: (let ((.cse10 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse2 (< |old(~waterLevel~0)| 1)) (.cse4 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse10)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= 1 |old(~pumpRunning~0)|))) (.cse8 (let ((.cse9 (+ ~waterLevel~0 1))) (and (<= .cse9 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse9) .cse10)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 (or .cse6 .cse3) .cse7 .cse8) (or .cse1 (not (= ~systemActive~0 0))) (or (or (or .cse6 .cse3 .cse5) .cse7) .cse8)))) [2018-11-18 09:03:15,959 INFO L421 ceAbstractionStarter]: At program point L708(lines 708 714) the Hoare annotation is: (let ((.cse8 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse7 (not (= 1 |old(~pumpRunning~0)|))) (.cse5 (let ((.cse9 (+ ~waterLevel~0 1))) (and (<= .cse9 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| .cse9)))) (.cse6 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (and .cse8 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~systemActive~0 0))) (or (or .cse1 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) .cse0) (or .cse4 .cse5 (or .cse6 .cse2) .cse7) (or (or (or .cse6 .cse2 .cse3) .cse7) .cse5) (or .cse0 (and (= ~pumpRunning~0 1) .cse8) (or .cse1 .cse6 .cse2 .cse3)) (or .cse4 .cse1 .cse0 (< |old(~waterLevel~0)| 1) .cse2)))) [2018-11-18 09:03:15,959 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 408 437) no Hoare annotation was computed. [2018-11-18 09:03:15,959 INFO L425 ceAbstractionStarter]: For program point L422(lines 422 426) no Hoare annotation was computed. [2018-11-18 09:03:15,959 INFO L428 ceAbstractionStarter]: At program point L422-1(lines 422 426) the Hoare annotation is: true [2018-11-18 09:03:15,959 INFO L425 ceAbstractionStarter]: For program point L418-1(lines 418 432) no Hoare annotation was computed. [2018-11-18 09:03:15,959 INFO L428 ceAbstractionStarter]: At program point L418-3(lines 418 432) the Hoare annotation is: true [2018-11-18 09:03:15,959 INFO L428 ceAbstractionStarter]: At program point L414(line 414) the Hoare annotation is: true [2018-11-18 09:03:15,959 INFO L425 ceAbstractionStarter]: For program point L414-1(line 414) no Hoare annotation was computed. [2018-11-18 09:03:15,959 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 408 437) the Hoare annotation is: true [2018-11-18 09:03:15,959 INFO L428 ceAbstractionStarter]: At program point L433(lines 408 437) the Hoare annotation is: true [2018-11-18 09:03:15,959 INFO L425 ceAbstractionStarter]: For program point L429(line 429) no Hoare annotation was computed. [2018-11-18 09:03:15,959 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-18 09:03:15,959 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 581 592) the Hoare annotation is: (let ((.cse3 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= 1 ~pumpRunning~0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 (or .cse2 .cse3)) (or (or .cse3 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse0 .cse1))) [2018-11-18 09:03:15,959 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 581 592) no Hoare annotation was computed. [2018-11-18 09:03:15,959 INFO L425 ceAbstractionStarter]: For program point L585-1(lines 581 592) no Hoare annotation was computed. [2018-11-18 09:03:15,959 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 465 471) no Hoare annotation was computed. [2018-11-18 09:03:15,959 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 465 471) the Hoare annotation is: true [2018-11-18 09:03:15,959 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:03:15,960 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 09:03:15,960 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:03:15,960 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:03:15,960 INFO L425 ceAbstractionStarter]: For program point L737(lines 737 745) no Hoare annotation was computed. [2018-11-18 09:03:15,960 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 729 753) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 09:03:15,960 INFO L421 ceAbstractionStarter]: At program point L735(line 735) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 09:03:15,960 INFO L425 ceAbstractionStarter]: For program point L735-1(line 735) no Hoare annotation was computed. [2018-11-18 09:03:15,960 INFO L425 ceAbstractionStarter]: For program point L733(lines 733 750) no Hoare annotation was computed. [2018-11-18 09:03:15,960 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 729 753) no Hoare annotation was computed. [2018-11-18 09:03:15,960 INFO L421 ceAbstractionStarter]: At program point L748(line 748) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 09:03:15,960 INFO L425 ceAbstractionStarter]: For program point L748-1(lines 729 753) no Hoare annotation was computed. [2018-11-18 09:03:15,960 INFO L421 ceAbstractionStarter]: At program point L743(line 743) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) .cse4)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 (< ~waterLevel~0 2) .cse1 .cse2) .cse3) (or (and (= processEnvironment__wrappee__highWaterSensor_~tmp~5 0) .cse4) .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 (< ~waterLevel~0 1) .cse1 .cse3) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 (not (= ~waterLevel~0 2)))))) [2018-11-18 09:03:15,960 INFO L421 ceAbstractionStarter]: At program point L739(line 739) the Hoare annotation is: (let ((.cse1 (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse3 (= processEnvironment__wrappee__highWaterSensor_~tmp~5 1) (not (= ~waterLevel~0 2))) (or .cse1 .cse0 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 09:03:15,960 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 593 604) no Hoare annotation was computed. [2018-11-18 09:03:15,960 INFO L425 ceAbstractionStarter]: For program point L597-1(lines 593 604) no Hoare annotation was computed. [2018-11-18 09:03:15,960 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 593 604) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse4 (< |old(~waterLevel~0)| 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 2) (not (= 1 ~pumpRunning~0)) .cse2) (or .cse0 .cse3 (not (= ~systemActive~0 0))) (or .cse0 .cse3 .cse4 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse3 .cse4 .cse1 .cse0))) [2018-11-18 09:03:15,960 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 682 689) no Hoare annotation was computed. [2018-11-18 09:03:15,960 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 682 689) the Hoare annotation is: true [2018-11-18 09:03:15,960 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 686) no Hoare annotation was computed. [2018-11-18 09:03:15,961 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 682 689) no Hoare annotation was computed. [2018-11-18 09:03:15,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:03:15 BoogieIcfgContainer [2018-11-18 09:03:15,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:03:15,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:03:15,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:03:15,971 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:03:15,972 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:02:32" (3/4) ... [2018-11-18 09:03:15,975 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:03:15,979 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 09:03:15,979 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 09:03:15,979 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 09:03:15,979 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 09:03:15,980 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 09:03:15,981 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 09:03:15,981 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 09:03:15,981 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 09:03:15,986 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-11-18 09:03:15,986 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 09:03:15,987 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 09:03:16,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((systemActive == 0 && 0 == pumpRunning) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || ((((0 == methaneLevelCritical && 2 <= waterLevel) && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || ((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((((methaneLevelCritical == 0 && 1 <= waterLevel) && pumpRunning == 0) && systemActive == 1) && splverifierCounter == 0) [2018-11-18 09:03:16,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 09:03:16,043 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dd541b15-2e1a-44c6-bb94-cd34b606ae36/bin-2019/utaipan/witness.graphml [2018-11-18 09:03:16,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:03:16,043 INFO L168 Benchmark]: Toolchain (without parser) took 44322.30 ms. Allocated memory was 1.0 GB in the beginning and 3.9 GB in the end (delta: 2.9 GB). Free memory was 955.4 MB in the beginning and 3.1 GB in the end (delta: -2.2 GB). Peak memory consumption was 683.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:03:16,044 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:03:16,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -200.4 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:03:16,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:03:16,044 INFO L168 Benchmark]: Boogie Preprocessor took 31.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:03:16,045 INFO L168 Benchmark]: RCFGBuilder took 492.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:03:16,045 INFO L168 Benchmark]: TraceAbstraction took 43347.57 ms. Allocated memory was 1.2 GB in the beginning and 3.9 GB in the end (delta: 2.7 GB). Free memory was 1.1 GB in the beginning and 3.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 3.0 GB. Max. memory is 11.5 GB. [2018-11-18 09:03:16,045 INFO L168 Benchmark]: Witness Printer took 73.42 ms. Allocated memory is still 3.9 GB. Free memory was 3.1 GB in the beginning and 3.1 GB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 11.5 GB. [2018-11-18 09:03:16,046 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 354.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -200.4 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 492.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 43347.57 ms. Allocated memory was 1.2 GB in the beginning and 3.9 GB in the end (delta: 2.7 GB). Free memory was 1.1 GB in the beginning and 3.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 3.0 GB. Max. memory is 11.5 GB. * Witness Printer took 73.42 ms. Allocated memory is still 3.9 GB. Free memory was 3.1 GB in the beginning and 3.1 GB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 686]: 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: 958]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 959]: Loop Invariant Derived loop invariant: ((((((((systemActive == 0 && 0 == pumpRunning) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || ((((0 == methaneLevelCritical && 2 <= waterLevel) && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || ((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((((methaneLevelCritical == 0 && 1 <= waterLevel) && pumpRunning == 0) && systemActive == 1) && splverifierCounter == 0) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 174 locations, 1 error locations. SAFE Result, 43.2s OverallTime, 21 OverallIterations, 4 TraceHistogramMax, 20.5s AutomataDifference, 0.0s DeadEndRemovalTime, 6.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 4849 SDtfs, 5506 SDslu, 16040 SDs, 0 SdLazy, 10317 SolverSat, 2152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 4465 GetRequests, 4137 SyntacticMatches, 36 SemanticMatches, 292 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4355occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.9s AbstIntTime, 9 AbstIntIterations, 4 AbstIntStrong, 0.9979088654878178 AbsIntWeakeningRatio, 0.8583916083916084 AbsIntAvgWeakeningVarsNumRemoved, 36.48601398601399 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 21 MinimizatonAttempts, 2219 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 72 LocationsWithAnnotation, 13383 PreInvPairs, 13595 NumberOfFragments, 2808 HoareAnnotationTreeSize, 13383 FomulaSimplifications, 72641 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 72 FomulaSimplificationsInter, 81619 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 5238 NumberOfCodeBlocks, 5034 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 7021 ConstructedInterpolants, 0 QuantifiedInterpolants, 2075659 SizeOfPredicates, 30 NumberOfNonLiveVariables, 6704 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 35 InterpolantComputations, 15 PerfectInterpolantSequences, 4032/4247 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...