./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product56_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_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product56_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/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 210feffc8ddd7d7862cfab969b7a82589a978274 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:49:57,107 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:49:57,108 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:49:57,116 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:49:57,116 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:49:57,117 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:49:57,118 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:49:57,119 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:49:57,120 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:49:57,120 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:49:57,121 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:49:57,122 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:49:57,122 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:49:57,123 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:49:57,124 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:49:57,124 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:49:57,125 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:49:57,128 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:49:57,129 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:49:57,130 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:49:57,131 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:49:57,132 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:49:57,133 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:49:57,133 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:49:57,134 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:49:57,134 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:49:57,135 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:49:57,136 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:49:57,136 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:49:57,137 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:49:57,137 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:49:57,138 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:49:57,138 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:49:57,138 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:49:57,138 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:49:57,140 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:49:57,140 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:49:57,151 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:49:57,151 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:49:57,151 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:49:57,151 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:49:57,152 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:49:57,152 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:49:57,152 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:49:57,152 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:49:57,152 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:49:57,152 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:49:57,152 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:49:57,152 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:49:57,152 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:49:57,154 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:49:57,154 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:49:57,154 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:49:57,154 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:49:57,155 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:49:57,155 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:49:57,155 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:49:57,155 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:49:57,155 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:49:57,155 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:49:57,155 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:49:57,155 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:49:57,155 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:49:57,156 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:49:57,156 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:49:57,156 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:49:57,156 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:49:57,156 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:49:57,156 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:49:57,156 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:49:57,156 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:49:57,156 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:49:57,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:49:57,157 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:49:57,157 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_f14009fb-06c1-415d-98af-57b5a7a72ac1/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 -> 210feffc8ddd7d7862cfab969b7a82589a978274 [2018-11-18 17:49:57,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:49:57,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:49:57,194 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:49:57,195 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:49:57,195 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:49:57,196 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product56_true-unreach-call_false-termination.cil.c [2018-11-18 17:49:57,248 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/data/0a871b931/aec72db2134b4beba4cb79decbcbf306/FLAGe3c734a07 [2018-11-18 17:49:57,603 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:49:57,603 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/sv-benchmarks/c/product-lines/minepump_spec4_product56_true-unreach-call_false-termination.cil.c [2018-11-18 17:49:57,610 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/data/0a871b931/aec72db2134b4beba4cb79decbcbf306/FLAGe3c734a07 [2018-11-18 17:49:58,009 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/data/0a871b931/aec72db2134b4beba4cb79decbcbf306 [2018-11-18 17:49:58,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:49:58,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:49:58,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:49:58,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:49:58,016 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:49:58,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f51cc82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58, skipping insertion in model container [2018-11-18 17:49:58,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:49:58,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:49:58,300 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:49:58,307 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:49:58,419 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:49:58,443 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:49:58,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58 WrapperNode [2018-11-18 17:49:58,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:49:58,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:49:58,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:49:58,444 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:49:58,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:49:58,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:49:58,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:49:58,475 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:49:58,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (1/1) ... [2018-11-18 17:49:58,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:49:58,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:49:58,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:49:58,510 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:49:58,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/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 17:49:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 17:49:58,556 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 17:49:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:49:58,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:49:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:49:58,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:49:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-18 17:49:58,556 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-18 17:49:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 17:49:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 17:49:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:49:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 17:49:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 17:49:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 17:49:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 17:49:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 17:49:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 17:49:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 17:49:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 17:49:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 17:49:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 17:49:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 17:49:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 17:49:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 17:49:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 17:49:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 17:49:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 17:49:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 17:49:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 17:49:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 17:49:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 17:49:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 17:49:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 17:49:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 17:49:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 17:49:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 17:49:58,560 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 17:49:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-18 17:49:58,560 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-18 17:49:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:49:58,560 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:49:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 17:49:58,560 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 17:49:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 17:49:58,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 17:49:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-18 17:49:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-18 17:49:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 17:49:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 17:49:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 17:49:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 17:49:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 17:49:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 17:49:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 17:49:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 17:49:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 17:49:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 17:49:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:49:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:49:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 17:49:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 17:49:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 17:49:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 17:49:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:49:58,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:49:59,002 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:49:59,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:49:59 BoogieIcfgContainer [2018-11-18 17:49:59,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:49:59,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:49:59,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:49:59,006 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:49:59,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:49:58" (1/3) ... [2018-11-18 17:49:59,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad7f13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:49:59, skipping insertion in model container [2018-11-18 17:49:59,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:49:58" (2/3) ... [2018-11-18 17:49:59,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad7f13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:49:59, skipping insertion in model container [2018-11-18 17:49:59,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:49:59" (3/3) ... [2018-11-18 17:49:59,009 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56_true-unreach-call_false-termination.cil.c [2018-11-18 17:49:59,017 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:49:59,024 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:49:59,037 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:49:59,064 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:49:59,064 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:49:59,064 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:49:59,064 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:49:59,064 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:49:59,065 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:49:59,065 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:49:59,065 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:49:59,082 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2018-11-18 17:49:59,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 17:49:59,089 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:49:59,090 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 17:49:59,092 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:49:59,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:49:59,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1631473580, now seen corresponding path program 1 times [2018-11-18 17:49:59,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:49:59,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:49:59,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:49:59,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:49:59,135 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:49:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:49:59,303 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 17:49:59,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:49:59,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:49:59,304 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:49:59,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:49:59,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:49:59,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:49:59,322 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 2 states. [2018-11-18 17:49:59,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:49:59,347 INFO L93 Difference]: Finished difference Result 316 states and 389 transitions. [2018-11-18 17:49:59,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:49:59,348 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 17:49:59,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:49:59,359 INFO L225 Difference]: With dead ends: 316 [2018-11-18 17:49:59,360 INFO L226 Difference]: Without dead ends: 158 [2018-11-18 17:49:59,363 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 17:49:59,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-11-18 17:49:59,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2018-11-18 17:49:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-11-18 17:49:59,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 186 transitions. [2018-11-18 17:49:59,408 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 186 transitions. Word has length 46 [2018-11-18 17:49:59,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:49:59,409 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 186 transitions. [2018-11-18 17:49:59,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:49:59,409 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 186 transitions. [2018-11-18 17:49:59,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 17:49:59,411 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:49:59,411 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 17:49:59,411 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:49:59,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:49:59,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1343103612, now seen corresponding path program 1 times [2018-11-18 17:49:59,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:49:59,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:49:59,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:49:59,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:49:59,413 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:49:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:49:59,495 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 17:49:59,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:49:59,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:49:59,496 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:49:59,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:49:59,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:49:59,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:49:59,498 INFO L87 Difference]: Start difference. First operand 158 states and 186 transitions. Second operand 3 states. [2018-11-18 17:49:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:49:59,516 INFO L93 Difference]: Finished difference Result 253 states and 297 transitions. [2018-11-18 17:49:59,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:49:59,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 17:49:59,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:49:59,520 INFO L225 Difference]: With dead ends: 253 [2018-11-18 17:49:59,520 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 17:49:59,521 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 17:49:59,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 17:49:59,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-11-18 17:49:59,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-18 17:49:59,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 173 transitions. [2018-11-18 17:49:59,532 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 173 transitions. Word has length 48 [2018-11-18 17:49:59,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:49:59,532 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 173 transitions. [2018-11-18 17:49:59,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:49:59,533 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 173 transitions. [2018-11-18 17:49:59,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 17:49:59,534 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:49:59,534 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] [2018-11-18 17:49:59,535 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:49:59,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:49:59,535 INFO L82 PathProgramCache]: Analyzing trace with hash 611377202, now seen corresponding path program 1 times [2018-11-18 17:49:59,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:49:59,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:49:59,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:49:59,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:49:59,536 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:49:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:49:59,673 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 17:49:59,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:49:59,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 17:49:59,674 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:49:59,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 17:49:59,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 17:49:59,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:49:59,675 INFO L87 Difference]: Start difference. First operand 148 states and 173 transitions. Second operand 7 states. [2018-11-18 17:50:00,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:00,109 INFO L93 Difference]: Finished difference Result 447 states and 540 transitions. [2018-11-18 17:50:00,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 17:50:00,109 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2018-11-18 17:50:00,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:00,111 INFO L225 Difference]: With dead ends: 447 [2018-11-18 17:50:00,111 INFO L226 Difference]: Without dead ends: 323 [2018-11-18 17:50:00,112 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 17:50:00,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2018-11-18 17:50:00,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 311. [2018-11-18 17:50:00,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2018-11-18 17:50:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 375 transitions. [2018-11-18 17:50:00,143 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 375 transitions. Word has length 53 [2018-11-18 17:50:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:00,143 INFO L480 AbstractCegarLoop]: Abstraction has 311 states and 375 transitions. [2018-11-18 17:50:00,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 17:50:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 375 transitions. [2018-11-18 17:50:00,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 17:50:00,145 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:00,146 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 17:50:00,146 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:00,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:00,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1228380887, now seen corresponding path program 1 times [2018-11-18 17:50:00,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:00,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:00,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:00,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:00,147 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:00,276 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 17:50:00,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:00,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 17:50:00,276 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:00,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 17:50:00,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 17:50:00,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:50:00,277 INFO L87 Difference]: Start difference. First operand 311 states and 375 transitions. Second operand 10 states. [2018-11-18 17:50:00,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:00,716 INFO L93 Difference]: Finished difference Result 1124 states and 1456 transitions. [2018-11-18 17:50:00,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 17:50:00,716 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2018-11-18 17:50:00,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:00,720 INFO L225 Difference]: With dead ends: 1124 [2018-11-18 17:50:00,720 INFO L226 Difference]: Without dead ends: 837 [2018-11-18 17:50:00,721 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 17:50:00,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2018-11-18 17:50:00,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 825. [2018-11-18 17:50:00,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2018-11-18 17:50:00,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1033 transitions. [2018-11-18 17:50:00,781 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1033 transitions. Word has length 58 [2018-11-18 17:50:00,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:00,782 INFO L480 AbstractCegarLoop]: Abstraction has 825 states and 1033 transitions. [2018-11-18 17:50:00,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 17:50:00,782 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1033 transitions. [2018-11-18 17:50:00,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 17:50:00,785 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:00,785 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 17:50:00,785 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:00,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:00,786 INFO L82 PathProgramCache]: Analyzing trace with hash 606541263, now seen corresponding path program 1 times [2018-11-18 17:50:00,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:00,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:00,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:00,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:00,787 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:00,842 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 17:50:00,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:00,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:50:00,842 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:00,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:50:00,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:50:00,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:50:00,843 INFO L87 Difference]: Start difference. First operand 825 states and 1033 transitions. Second operand 3 states. [2018-11-18 17:50:00,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:00,920 INFO L93 Difference]: Finished difference Result 1845 states and 2437 transitions. [2018-11-18 17:50:00,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:50:00,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2018-11-18 17:50:00,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:00,929 INFO L225 Difference]: With dead ends: 1845 [2018-11-18 17:50:00,929 INFO L226 Difference]: Without dead ends: 1044 [2018-11-18 17:50:00,932 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 17:50:00,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-18 17:50:00,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1023. [2018-11-18 17:50:00,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2018-11-18 17:50:00,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1284 transitions. [2018-11-18 17:50:00,983 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1284 transitions. Word has length 62 [2018-11-18 17:50:00,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:00,983 INFO L480 AbstractCegarLoop]: Abstraction has 1023 states and 1284 transitions. [2018-11-18 17:50:00,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:50:00,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1284 transitions. [2018-11-18 17:50:00,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-11-18 17:50:00,985 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:00,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:00,986 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:00,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:00,986 INFO L82 PathProgramCache]: Analyzing trace with hash 559292284, now seen corresponding path program 1 times [2018-11-18 17:50:00,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:00,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:00,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:00,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:00,987 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 17:50:01,084 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:01,084 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:01,085 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 92 with the following transitions: [2018-11-18 17:50:01,087 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [94], [98], [104], [108], [112], [115], [120], [126], [128], [134], [137], [140], [150], [151], [154], [155], [208], [215], [218], [226], [253], [257], [258], [280], [281], [282], [283], [284], [286], [287], [288], [289], [290], [291], [292], [293], [294], [300], [312], [313], [318], [319], [320], [321], [334], [335], [336], [337], [338] [2018-11-18 17:50:01,116 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:01,116 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:01,564 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:50:01,565 INFO L272 AbstractInterpreter]: Visited 68 different actions 80 times. Merged at 7 different actions 7 times. Never widened. Performed 3147 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3147 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 17:50:01,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:01,605 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:50:01,606 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:01,606 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-11-18 17:50:01,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:01,618 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:50:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:01,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 17:50:01,814 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:01,956 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 17:50:01,973 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:50:01,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-11-18 17:50:01,974 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:50:01,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 17:50:01,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 17:50:01,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-11-18 17:50:01,975 INFO L87 Difference]: Start difference. First operand 1023 states and 1284 transitions. Second operand 12 states. [2018-11-18 17:50:04,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:04,017 INFO L93 Difference]: Finished difference Result 2508 states and 3394 transitions. [2018-11-18 17:50:04,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-18 17:50:04,017 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2018-11-18 17:50:04,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:04,023 INFO L225 Difference]: With dead ends: 2508 [2018-11-18 17:50:04,023 INFO L226 Difference]: Without dead ends: 1769 [2018-11-18 17:50:04,026 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 188 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-11-18 17:50:04,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2018-11-18 17:50:04,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1544. [2018-11-18 17:50:04,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1544 states. [2018-11-18 17:50:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 1962 transitions. [2018-11-18 17:50:04,100 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 1962 transitions. Word has length 91 [2018-11-18 17:50:04,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:04,100 INFO L480 AbstractCegarLoop]: Abstraction has 1544 states and 1962 transitions. [2018-11-18 17:50:04,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 17:50:04,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 1962 transitions. [2018-11-18 17:50:04,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-11-18 17:50:04,104 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:04,105 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, 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] [2018-11-18 17:50:04,105 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:04,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:04,105 INFO L82 PathProgramCache]: Analyzing trace with hash 17411549, now seen corresponding path program 1 times [2018-11-18 17:50:04,105 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:04,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:04,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:04,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:04,106 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-18 17:50:04,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:04,234 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:04,235 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-11-18 17:50:04,235 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [59], [68], [71], [73], [74], [89], [92], [94], [98], [104], [108], [112], [118], [120], [126], [128], [134], [140], [150], [151], [152], [153], [154], [155], [156], [158], [161], [165], [166], [205], [208], [212], [218], [221], [225], [226], [232], [235], [237], [240], [250], [258], [261], [276], [279], [280], [281], [282], [283], [284], [286], [287], [288], [289], [290], [291], [292], [293], [294], [300], [310], [311], [320], [321], [324], [325], [330], [331], [332], [333], [334], [335], [336], [337], [338], [340], [341], [342], [343], [354], [355] [2018-11-18 17:50:04,238 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:04,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:04,625 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:50:04,625 INFO L272 AbstractInterpreter]: Visited 96 different actions 219 times. Merged at 16 different actions 16 times. Never widened. Performed 6698 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6698 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 133 variables. [2018-11-18 17:50:04,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:04,637 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:50:04,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:04,637 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/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 17:50:04,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:04,650 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:50:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:04,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-18 17:50:04,786 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:04,984 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-18 17:50:05,000 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:50:05,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 17:50:05,000 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:50:05,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 17:50:05,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 17:50:05,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:50:05,001 INFO L87 Difference]: Start difference. First operand 1544 states and 1962 transitions. Second operand 9 states. [2018-11-18 17:50:05,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:05,710 INFO L93 Difference]: Finished difference Result 3186 states and 4185 transitions. [2018-11-18 17:50:05,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 17:50:05,711 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2018-11-18 17:50:05,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:05,719 INFO L225 Difference]: With dead ends: 3186 [2018-11-18 17:50:05,719 INFO L226 Difference]: Without dead ends: 1666 [2018-11-18 17:50:05,723 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 294 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:50:05,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2018-11-18 17:50:05,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1552. [2018-11-18 17:50:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1552 states. [2018-11-18 17:50:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 1836 transitions. [2018-11-18 17:50:05,800 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 1836 transitions. Word has length 148 [2018-11-18 17:50:05,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:05,800 INFO L480 AbstractCegarLoop]: Abstraction has 1552 states and 1836 transitions. [2018-11-18 17:50:05,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 17:50:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 1836 transitions. [2018-11-18 17:50:05,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-18 17:50:05,803 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:05,804 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, 1] [2018-11-18 17:50:05,804 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:05,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:05,804 INFO L82 PathProgramCache]: Analyzing trace with hash 539951617, now seen corresponding path program 1 times [2018-11-18 17:50:05,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:05,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:05,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:05,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:05,805 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 17:50:05,896 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:05,896 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:05,896 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-11-18 17:50:05,897 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [118], [120], [126], [128], [134], [140], [148], [149], [150], [151], [152], [153], [154], [155], [156], [158], [163], [165], [166], [201], [202], [205], [208], [212], [218], [221], [225], [226], [232], [235], [237], [240], [247], [250], [258], [261], [264], [266], [272], [276], [279], [280], [281], [282], [283], [284], [286], [287], [288], [289], [290], [291], [292], [293], [294], [298], [299], [300], [302], [303], [304], [305], [308], [309], [310], [311], [320], [321], [324], [325], [330], [331], [332], [333], [334], [335], [336], [337], [338], [340], [341], [342], [343], [346], [347], [348], [349], [352], [353], [354], [355] [2018-11-18 17:50:05,904 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:05,905 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:06,978 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:50:06,978 INFO L272 AbstractInterpreter]: Visited 130 different actions 485 times. Merged at 18 different actions 42 times. Never widened. Performed 15540 root evaluator evaluations with a maximum evaluation depth of 5. Performed 15540 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 5 fixpoints after 1 different actions. Largest state had 133 variables. [2018-11-18 17:50:06,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:06,989 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:50:06,989 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:06,989 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/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 17:50:06,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:06,998 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:50:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:07,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 17:50:07,148 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:07,350 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 17:50:07,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:50:07,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 17:50:07,365 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:07,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:50:07,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:50:07,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:50:07,366 INFO L87 Difference]: Start difference. First operand 1552 states and 1836 transitions. Second operand 5 states. [2018-11-18 17:50:07,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:07,430 INFO L93 Difference]: Finished difference Result 2909 states and 3514 transitions. [2018-11-18 17:50:07,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:50:07,431 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-11-18 17:50:07,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:07,437 INFO L225 Difference]: With dead ends: 2909 [2018-11-18 17:50:07,437 INFO L226 Difference]: Without dead ends: 1381 [2018-11-18 17:50:07,440 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 311 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 17:50:07,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2018-11-18 17:50:07,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1381. [2018-11-18 17:50:07,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1381 states. [2018-11-18 17:50:07,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1636 transitions. [2018-11-18 17:50:07,513 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1636 transitions. Word has length 157 [2018-11-18 17:50:07,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:07,513 INFO L480 AbstractCegarLoop]: Abstraction has 1381 states and 1636 transitions. [2018-11-18 17:50:07,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:50:07,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1636 transitions. [2018-11-18 17:50:07,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-11-18 17:50:07,516 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:07,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:07,516 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:07,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:07,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1616545564, now seen corresponding path program 1 times [2018-11-18 17:50:07,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:07,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:07,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:07,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:07,518 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:07,650 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:50:07,650 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:07,650 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:07,650 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 162 with the following transitions: [2018-11-18 17:50:07,651 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [126], [128], [134], [140], [148], [149], [150], [151], [152], [153], [154], [155], [156], [158], [163], [165], [166], [201], [202], [205], [208], [212], [218], [221], [225], [226], [232], [235], [237], [240], [247], [250], [253], [257], [258], [261], [264], [266], [272], [276], [279], [280], [281], [282], [283], [284], [286], [287], [288], [289], [290], [291], [292], [293], [294], [298], [299], [300], [302], [303], [304], [305], [308], [309], [310], [311], [312], [313], [320], [321], [324], [325], [330], [331], [332], [333], [334], [335], [336], [337], [338], [340], [341], [342], [343], [346], [347], [348], [349], [352], [353], [354], [355] [2018-11-18 17:50:07,653 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:07,653 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:08,718 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:50:08,718 INFO L272 AbstractInterpreter]: Visited 135 different actions 653 times. Merged at 20 different actions 57 times. Never widened. Performed 20657 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20657 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-18 17:50:08,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:08,720 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:50:08,720 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:08,720 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/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 17:50:08,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:08,726 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:50:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:08,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:08,865 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:09,029 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 17:50:09,045 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:50:09,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 17:50:09,045 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:50:09,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 17:50:09,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 17:50:09,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:50:09,046 INFO L87 Difference]: Start difference. First operand 1381 states and 1636 transitions. Second operand 14 states. [2018-11-18 17:50:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:10,664 INFO L93 Difference]: Finished difference Result 3158 states and 3974 transitions. [2018-11-18 17:50:10,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-18 17:50:10,665 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 161 [2018-11-18 17:50:10,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:10,671 INFO L225 Difference]: With dead ends: 3158 [2018-11-18 17:50:10,671 INFO L226 Difference]: Without dead ends: 1973 [2018-11-18 17:50:10,673 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 317 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 17:50:10,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2018-11-18 17:50:10,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1645. [2018-11-18 17:50:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2018-11-18 17:50:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 1934 transitions. [2018-11-18 17:50:10,731 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 1934 transitions. Word has length 161 [2018-11-18 17:50:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:10,732 INFO L480 AbstractCegarLoop]: Abstraction has 1645 states and 1934 transitions. [2018-11-18 17:50:10,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 17:50:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 1934 transitions. [2018-11-18 17:50:10,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-11-18 17:50:10,735 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:10,735 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:10,735 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:10,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:10,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1146455398, now seen corresponding path program 1 times [2018-11-18 17:50:10,735 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:10,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:10,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:10,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:10,736 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 45 proven. 10 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-18 17:50:10,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:10,831 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:10,831 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-11-18 17:50:10,832 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [126], [128], [134], [140], [148], [149], [150], [151], [152], [153], [154], [155], [156], [158], [163], [165], [166], [201], [202], [205], [208], [212], [218], [221], [225], [226], [232], [235], [237], [240], [247], [250], [253], [257], [258], [261], [264], [266], [272], [276], [279], [280], [281], [282], [283], [284], [286], [287], [288], [289], [290], [291], [292], [293], [294], [298], [299], [300], [302], [303], [304], [305], [308], [309], [310], [311], [312], [313], [320], [321], [324], [325], [330], [331], [332], [333], [334], [335], [336], [337], [338], [340], [341], [342], [343], [346], [347], [348], [349], [352], [353], [354], [355] [2018-11-18 17:50:10,834 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:10,834 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:11,697 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:50:11,697 INFO L272 AbstractInterpreter]: Visited 136 different actions 671 times. Merged at 25 different actions 72 times. Never widened. Performed 20492 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20492 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-18 17:50:11,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:11,701 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:50:11,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:11,701 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/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 17:50:11,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:11,714 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:50:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:11,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-11-18 17:50:11,859 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:12,112 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 45 proven. 10 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-18 17:50:12,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:50:12,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 17:50:12,138 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:12,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:50:12,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:50:12,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 17:50:12,139 INFO L87 Difference]: Start difference. First operand 1645 states and 1934 transitions. Second operand 6 states. [2018-11-18 17:50:12,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:12,182 INFO L93 Difference]: Finished difference Result 2190 states and 2574 transitions. [2018-11-18 17:50:12,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:50:12,183 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 232 [2018-11-18 17:50:12,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:12,184 INFO L225 Difference]: With dead ends: 2190 [2018-11-18 17:50:12,184 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:50:12,187 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 459 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 17:50:12,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:50:12,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:50:12,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:50:12,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:50:12,188 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 232 [2018-11-18 17:50:12,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:12,188 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:50:12,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:50:12,188 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:50:12,188 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:50:12,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:50:12,388 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,629 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,704 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,753 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:12,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:13,596 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 31 [2018-11-18 17:50:13,781 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 26 [2018-11-18 17:50:14,869 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 994 1000) the Hoare annotation is: true [2018-11-18 17:50:14,869 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 994 1000) no Hoare annotation was computed. [2018-11-18 17:50:14,869 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 1001 1009) no Hoare annotation was computed. [2018-11-18 17:50:14,869 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 1001 1009) the Hoare annotation is: true [2018-11-18 17:50:14,869 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 1001 1009) no Hoare annotation was computed. [2018-11-18 17:50:14,869 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 739 763) the Hoare annotation is: true [2018-11-18 17:50:14,869 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 739 763) no Hoare annotation was computed. [2018-11-18 17:50:14,869 INFO L421 ceAbstractionStarter]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 2))) (and (or .cse0 (not (= ~waterLevel~0 1))) (or .cse0 .cse1) (or (< ~pumpRunning~0 1) (= ~systemActive~0 0) .cse1))) [2018-11-18 17:50:14,869 INFO L425 ceAbstractionStarter]: For program point L751(lines 751 757) no Hoare annotation was computed. [2018-11-18 17:50:14,870 INFO L421 ceAbstractionStarter]: At program point L749(line 749) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 2))) (and (or .cse0 (not (= ~waterLevel~0 1))) (or .cse0 .cse1) (or (< ~pumpRunning~0 1) (= ~systemActive~0 0) .cse1))) [2018-11-18 17:50:14,870 INFO L425 ceAbstractionStarter]: For program point L749-1(line 749) no Hoare annotation was computed. [2018-11-18 17:50:14,870 INFO L425 ceAbstractionStarter]: For program point L747(lines 747 760) no Hoare annotation was computed. [2018-11-18 17:50:14,870 INFO L425 ceAbstractionStarter]: For program point L747-1(lines 739 763) no Hoare annotation was computed. [2018-11-18 17:50:14,870 INFO L428 ceAbstractionStarter]: At program point L745(line 745) the Hoare annotation is: true [2018-11-18 17:50:14,870 INFO L425 ceAbstractionStarter]: For program point L745-1(line 745) no Hoare annotation was computed. [2018-11-18 17:50:14,870 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 840 862) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:14,870 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 840 862) no Hoare annotation was computed. [2018-11-18 17:50:14,870 INFO L421 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (or (and (= 0 ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~10 ~systemActive~0) (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:14,870 INFO L421 ceAbstractionStarter]: At program point L852-1(line 852) the Hoare annotation is: (or (and (= 0 ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~10 ~systemActive~0) (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:14,870 INFO L425 ceAbstractionStarter]: For program point L850(lines 850 857) no Hoare annotation was computed. [2018-11-18 17:50:14,870 INFO L425 ceAbstractionStarter]: For program point L850-1(lines 850 857) no Hoare annotation was computed. [2018-11-18 17:50:14,870 INFO L425 ceAbstractionStarter]: For program point L848(line 848) no Hoare annotation was computed. [2018-11-18 17:50:14,871 INFO L421 ceAbstractionStarter]: At program point L847(line 847) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:14,871 INFO L421 ceAbstractionStarter]: At program point L846(line 846) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:14,871 INFO L421 ceAbstractionStarter]: At program point L846-1(line 846) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:14,871 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 840 862) no Hoare annotation was computed. [2018-11-18 17:50:14,871 INFO L425 ceAbstractionStarter]: For program point stopSystemEXIT(lines 275 289) no Hoare annotation was computed. [2018-11-18 17:50:14,871 INFO L421 ceAbstractionStarter]: At program point L281(line 281) the Hoare annotation is: (and (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1)) (or (or (< |old(~pumpRunning~0)| 1) (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~systemActive~0 0))))) [2018-11-18 17:50:14,871 INFO L425 ceAbstractionStarter]: For program point L279(lines 279 285) no Hoare annotation was computed. [2018-11-18 17:50:14,871 INFO L421 ceAbstractionStarter]: At program point stopSystemENTRY(lines 275 289) the Hoare annotation is: (and (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (< ~waterLevel~0 1)) (or (or (< |old(~pumpRunning~0)| 1) (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~systemActive~0 0))))) [2018-11-18 17:50:14,871 INFO L425 ceAbstractionStarter]: For program point stopSystemFINAL(lines 275 289) no Hoare annotation was computed. [2018-11-18 17:50:14,871 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 192 200) no Hoare annotation was computed. [2018-11-18 17:50:14,871 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 192 200) the Hoare annotation is: true [2018-11-18 17:50:14,871 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 192 200) no Hoare annotation was computed. [2018-11-18 17:50:14,872 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 256 274) the Hoare annotation is: true [2018-11-18 17:50:14,872 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 269) no Hoare annotation was computed. [2018-11-18 17:50:14,872 INFO L428 ceAbstractionStarter]: At program point L263(line 263) the Hoare annotation is: true [2018-11-18 17:50:14,872 INFO L425 ceAbstractionStarter]: For program point L265-2(lines 265 269) no Hoare annotation was computed. [2018-11-18 17:50:14,872 INFO L425 ceAbstractionStarter]: For program point L263-1(line 263) no Hoare annotation was computed. [2018-11-18 17:50:14,872 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 256 274) no Hoare annotation was computed. [2018-11-18 17:50:14,872 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 256 274) no Hoare annotation was computed. [2018-11-18 17:50:14,872 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 987 993) no Hoare annotation was computed. [2018-11-18 17:50:14,872 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 987 993) the Hoare annotation is: true [2018-11-18 17:50:14,872 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 827 836) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:14,872 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 827 836) no Hoare annotation was computed. [2018-11-18 17:50:14,872 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 827 836) no Hoare annotation was computed. [2018-11-18 17:50:14,872 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 181 191) the Hoare annotation is: true [2018-11-18 17:50:14,872 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 181 191) no Hoare annotation was computed. [2018-11-18 17:50:14,873 INFO L428 ceAbstractionStarter]: At program point L186(line 186) the Hoare annotation is: true [2018-11-18 17:50:14,873 INFO L425 ceAbstractionStarter]: For program point L186-1(line 186) no Hoare annotation was computed. [2018-11-18 17:50:14,873 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 181 191) no Hoare annotation was computed. [2018-11-18 17:50:14,873 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 173 180) the Hoare annotation is: (or (< |old(~pumpRunning~0)| 1) (= ~systemActive~0 0) (< ~waterLevel~0 1) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2018-11-18 17:50:14,873 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 173 180) no Hoare annotation was computed. [2018-11-18 17:50:14,873 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 173 180) no Hoare annotation was computed. [2018-11-18 17:50:14,873 INFO L425 ceAbstractionStarter]: For program point L956(lines 956 962) no Hoare annotation was computed. [2018-11-18 17:50:14,873 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 952 965) no Hoare annotation was computed. [2018-11-18 17:50:14,873 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 952 965) the Hoare annotation is: true [2018-11-18 17:50:14,873 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 952 965) no Hoare annotation was computed. [2018-11-18 17:50:14,873 INFO L421 ceAbstractionStarter]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1))) [2018-11-18 17:50:14,873 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 140 164) no Hoare annotation was computed. [2018-11-18 17:50:14,873 INFO L421 ceAbstractionStarter]: At program point L154(line 154) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2018-11-18 17:50:14,873 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 140 164) no Hoare annotation was computed. [2018-11-18 17:50:14,874 INFO L421 ceAbstractionStarter]: At program point L150(line 150) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2018-11-18 17:50:14,874 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 156) no Hoare annotation was computed. [2018-11-18 17:50:14,874 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 140 164) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2018-11-18 17:50:14,874 INFO L421 ceAbstractionStarter]: At program point L146(line 146) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2018-11-18 17:50:14,874 INFO L425 ceAbstractionStarter]: For program point L146-1(line 146) no Hoare annotation was computed. [2018-11-18 17:50:14,874 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 161) no Hoare annotation was computed. [2018-11-18 17:50:14,874 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 80 86) no Hoare annotation was computed. [2018-11-18 17:50:14,874 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 80 86) the Hoare annotation is: true [2018-11-18 17:50:14,874 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 668 735) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:14,874 INFO L421 ceAbstractionStarter]: At program point L700(line 700) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:50:14,874 INFO L425 ceAbstractionStarter]: For program point L698(lines 698 704) no Hoare annotation was computed. [2018-11-18 17:50:14,874 INFO L425 ceAbstractionStarter]: For program point L698-1(lines 698 704) no Hoare annotation was computed. [2018-11-18 17:50:14,875 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 668 735) no Hoare annotation was computed. [2018-11-18 17:50:14,875 INFO L421 ceAbstractionStarter]: At program point L725(lines 678 727) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:50:14,875 INFO L421 ceAbstractionStarter]: At program point L690(line 690) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:50:14,875 INFO L425 ceAbstractionStarter]: For program point L688(lines 688 694) no Hoare annotation was computed. [2018-11-18 17:50:14,875 INFO L425 ceAbstractionStarter]: For program point L688-1(lines 688 694) no Hoare annotation was computed. [2018-11-18 17:50:14,875 INFO L425 ceAbstractionStarter]: For program point L680(lines 680 684) no Hoare annotation was computed. [2018-11-18 17:50:14,875 INFO L425 ceAbstractionStarter]: For program point L678-1(lines 678 727) no Hoare annotation was computed. [2018-11-18 17:50:14,875 INFO L421 ceAbstractionStarter]: At program point L728(lines 677 729) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:14,875 INFO L421 ceAbstractionStarter]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) (and (not (= ~systemActive~0 0)) .cse0) (<= 2 ~waterLevel~0)) (and (and (= 0 ~pumpRunning~0) .cse0 (not (= ~waterLevel~0 0))) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:50:14,875 INFO L425 ceAbstractionStarter]: For program point L716(lines 716 722) no Hoare annotation was computed. [2018-11-18 17:50:14,875 INFO L421 ceAbstractionStarter]: At program point L716-1(lines 708 723) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:50:14,876 INFO L425 ceAbstractionStarter]: For program point L679(lines 678 727) no Hoare annotation was computed. [2018-11-18 17:50:14,876 INFO L421 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (and (= 0 ~pumpRunning~0) .cse0) (= ~waterLevel~0 |old(~waterLevel~0)|)) (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (and (<= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:50:14,876 INFO L425 ceAbstractionStarter]: For program point L708(lines 708 723) no Hoare annotation was computed. [2018-11-18 17:50:14,876 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 668 735) no Hoare annotation was computed. [2018-11-18 17:50:14,876 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 966 974) no Hoare annotation was computed. [2018-11-18 17:50:14,876 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 966 974) the Hoare annotation is: true [2018-11-18 17:50:14,876 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 966 974) no Hoare annotation was computed. [2018-11-18 17:50:14,876 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:50:14,876 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-11-18 17:50:14,876 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:50:14,876 INFO L425 ceAbstractionStarter]: For program point activatePumpFINAL(lines 165 172) no Hoare annotation was computed. [2018-11-18 17:50:14,876 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 165 172) no Hoare annotation was computed. [2018-11-18 17:50:14,876 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 165 172) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 2) (= 0 ~pumpRunning~0)) [2018-11-18 17:50:14,876 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 943 951) the Hoare annotation is: true [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 943 951) no Hoare annotation was computed. [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 943 951) no Hoare annotation was computed. [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 237 255) no Hoare annotation was computed. [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point L246(lines 246 250) no Hoare annotation was computed. [2018-11-18 17:50:14,877 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 237 255) the Hoare annotation is: true [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 237 255) no Hoare annotation was computed. [2018-11-18 17:50:14,877 INFO L428 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: true [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point L246-2(lines 246 250) no Hoare annotation was computed. [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point L244-1(line 244) no Hoare annotation was computed. [2018-11-18 17:50:14,877 INFO L428 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 899 910) the Hoare annotation is: true [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point L903-1(lines 899 910) no Hoare annotation was computed. [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 899 910) no Hoare annotation was computed. [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 766 795) no Hoare annotation was computed. [2018-11-18 17:50:14,877 INFO L428 ceAbstractionStarter]: At program point L791(lines 766 795) the Hoare annotation is: true [2018-11-18 17:50:14,877 INFO L425 ceAbstractionStarter]: For program point L787(line 787) no Hoare annotation was computed. [2018-11-18 17:50:14,878 INFO L425 ceAbstractionStarter]: For program point L777(line 777) no Hoare annotation was computed. [2018-11-18 17:50:14,878 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 766 795) the Hoare annotation is: true [2018-11-18 17:50:14,878 INFO L425 ceAbstractionStarter]: For program point L780(lines 780 784) no Hoare annotation was computed. [2018-11-18 17:50:14,878 INFO L428 ceAbstractionStarter]: At program point L780-1(lines 780 784) the Hoare annotation is: true [2018-11-18 17:50:14,878 INFO L425 ceAbstractionStarter]: For program point L776-1(lines 776 790) no Hoare annotation was computed. [2018-11-18 17:50:14,878 INFO L428 ceAbstractionStarter]: At program point L776-3(lines 776 790) the Hoare annotation is: true [2018-11-18 17:50:14,878 INFO L428 ceAbstractionStarter]: At program point L772(line 772) the Hoare annotation is: true [2018-11-18 17:50:14,878 INFO L425 ceAbstractionStarter]: For program point L772-1(line 772) no Hoare annotation was computed. [2018-11-18 17:50:14,878 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 911 919) the Hoare annotation is: true [2018-11-18 17:50:14,878 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 911 919) no Hoare annotation was computed. [2018-11-18 17:50:14,878 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 911 919) no Hoare annotation was computed. [2018-11-18 17:50:14,878 INFO L421 ceAbstractionStarter]: At program point L62(line 62) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1))) (or .cse0 .cse1) (or (< |old(~pumpRunning~0)| 1) (= ~systemActive~0 0) .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~waterLevel~0 |old(~waterLevel~0)|))))) [2018-11-18 17:50:14,878 INFO L425 ceAbstractionStarter]: For program point L60(lines 59 78) no Hoare annotation was computed. [2018-11-18 17:50:14,879 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 56 79) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) .cse0) (< |old(~waterLevel~0)| 1)) (or (< |old(~pumpRunning~0)| 1) (= ~systemActive~0 0) (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0)))) [2018-11-18 17:50:14,879 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 56 79) no Hoare annotation was computed. [2018-11-18 17:50:14,879 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 56 79) no Hoare annotation was computed. [2018-11-18 17:50:14,879 INFO L421 ceAbstractionStarter]: At program point L69(line 69) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (< |old(~pumpRunning~0)| 1) .cse0 (< |old(~waterLevel~0)| 2)) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) (and (= 0 ~pumpRunning~0) (not .cse0) (= ~waterLevel~0 |old(~waterLevel~0)|))))) [2018-11-18 17:50:14,879 INFO L421 ceAbstractionStarter]: At program point L67(lines 67 73) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (and .cse2 .cse3))) (and (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1 (and .cse2 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and (<= 1 ~pumpRunning~0) (not .cse0) .cse3) (or .cse4 .cse1) .cse5) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse5)))) [2018-11-18 17:50:14,879 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 875 886) the Hoare annotation is: (or (< ~pumpRunning~0 1) (= ~systemActive~0 0) (< |old(~waterLevel~0)| 2) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-11-18 17:50:14,879 INFO L425 ceAbstractionStarter]: For program point L879-1(lines 875 886) no Hoare annotation was computed. [2018-11-18 17:50:14,879 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 875 886) no Hoare annotation was computed. [2018-11-18 17:50:14,879 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 820 826) no Hoare annotation was computed. [2018-11-18 17:50:14,879 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 820 826) the Hoare annotation is: true [2018-11-18 17:50:14,879 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:50:14,879 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~pumpRunning~0) (= ~waterLevel~0 1) (= ~systemActive~0 1)) [2018-11-18 17:50:14,879 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:50:14,880 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:50:14,880 INFO L425 ceAbstractionStarter]: For program point startSystemEXIT(lines 290 297) no Hoare annotation was computed. [2018-11-18 17:50:14,880 INFO L428 ceAbstractionStarter]: At program point startSystemENTRY(lines 290 297) the Hoare annotation is: true [2018-11-18 17:50:14,880 INFO L425 ceAbstractionStarter]: For program point startSystemFINAL(lines 290 297) no Hoare annotation was computed. [2018-11-18 17:50:14,880 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 88 112) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1) (= 0 ~pumpRunning~0)) [2018-11-18 17:50:14,880 INFO L425 ceAbstractionStarter]: For program point L96(lines 96 104) no Hoare annotation was computed. [2018-11-18 17:50:14,880 INFO L421 ceAbstractionStarter]: At program point L94(line 94) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1) (= 0 ~pumpRunning~0)) [2018-11-18 17:50:14,880 INFO L425 ceAbstractionStarter]: For program point L94-1(line 94) no Hoare annotation was computed. [2018-11-18 17:50:14,880 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 109) no Hoare annotation was computed. [2018-11-18 17:50:14,880 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 88 112) no Hoare annotation was computed. [2018-11-18 17:50:14,880 INFO L421 ceAbstractionStarter]: At program point L107(line 107) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1)) [2018-11-18 17:50:14,880 INFO L425 ceAbstractionStarter]: For program point L107-1(lines 88 112) no Hoare annotation was computed. [2018-11-18 17:50:14,880 INFO L421 ceAbstractionStarter]: At program point L102(line 102) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (and (= 0 ~pumpRunning~0) (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0)) (< ~waterLevel~0 1)) [2018-11-18 17:50:14,881 INFO L421 ceAbstractionStarter]: At program point L98(line 98) the Hoare annotation is: (or (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1)) [2018-11-18 17:50:14,881 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 887 898) no Hoare annotation was computed. [2018-11-18 17:50:14,881 INFO L425 ceAbstractionStarter]: For program point L891-1(lines 887 898) no Hoare annotation was computed. [2018-11-18 17:50:14,881 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 887 898) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (< ~pumpRunning~0 1) (< |old(~waterLevel~0)| 2) .cse0 (= ~systemActive~0 0)) (or (not (= 0 ~pumpRunning~0)) .cse0 (< |old(~waterLevel~0)| 1)))) [2018-11-18 17:50:14,881 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 864 871) no Hoare annotation was computed. [2018-11-18 17:50:14,881 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 864 871) the Hoare annotation is: true [2018-11-18 17:50:14,881 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 868) no Hoare annotation was computed. [2018-11-18 17:50:14,881 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 864 871) no Hoare annotation was computed. [2018-11-18 17:50:14,881 INFO L421 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1))) [2018-11-18 17:50:14,881 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 114 138) no Hoare annotation was computed. [2018-11-18 17:50:14,881 INFO L421 ceAbstractionStarter]: At program point L124(line 124) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1 (and (<= 1 processEnvironment__wrappee__lowWaterSensor_~tmp~1) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 17:50:14,882 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 114 138) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2018-11-18 17:50:14,882 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 130) no Hoare annotation was computed. [2018-11-18 17:50:14,882 INFO L421 ceAbstractionStarter]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2018-11-18 17:50:14,882 INFO L425 ceAbstractionStarter]: For program point L120-1(line 120) no Hoare annotation was computed. [2018-11-18 17:50:14,882 INFO L425 ceAbstractionStarter]: For program point L118(lines 118 135) no Hoare annotation was computed. [2018-11-18 17:50:14,882 INFO L421 ceAbstractionStarter]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1))) [2018-11-18 17:50:14,882 INFO L425 ceAbstractionStarter]: For program point L133-1(lines 114 138) no Hoare annotation was computed. [2018-11-18 17:50:14,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:50:14 BoogieIcfgContainer [2018-11-18 17:50:14,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:50:14,892 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:50:14,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:50:14,892 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:50:14,893 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:49:59" (3/4) ... [2018-11-18 17:50:14,896 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:50:14,901 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 17:50:14,901 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 17:50:14,901 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:50:14,901 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:50:14,901 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 17:50:14,902 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 17:50:14,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 17:50:14,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 17:50:14,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 17:50:14,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 17:50:14,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 17:50:14,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 17:50:14,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-18 17:50:14,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:50:14,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 17:50:14,904 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 17:50:14,904 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2018-11-18 17:50:14,910 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2018-11-18 17:50:14,911 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 17:50:14,911 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 17:50:14,934 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || !(0 == \old(pumpRunning))) || (((1 <= pumpRunning && 2 <= waterLevel) && !(systemActive == 0)) && splverifierCounter == 0)) || !(\old(waterLevel) == 1) [2018-11-18 17:50:14,934 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-11-18 17:50:14,969 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f14009fb-06c1-415d-98af-57b5a7a72ac1/bin-2019/utaipan/witness.graphml [2018-11-18 17:50:14,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:50:14,970 INFO L168 Benchmark]: Toolchain (without parser) took 16957.98 ms. Allocated memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: 773.8 MB). Free memory was 950.4 MB in the beginning and 1.4 GB in the end (delta: -400.2 MB). Peak memory consumption was 373.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:14,970 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:50:14,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 950.4 MB in the beginning and 1.1 GB in the end (delta: -168.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:14,971 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:50:14,971 INFO L168 Benchmark]: Boogie Preprocessor took 34.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:14,971 INFO L168 Benchmark]: RCFGBuilder took 493.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:14,971 INFO L168 Benchmark]: TraceAbstraction took 15888.39 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 635.4 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -311.7 MB). Peak memory consumption was 926.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:14,971 INFO L168 Benchmark]: Witness Printer took 77.10 ms. Allocated memory is still 1.8 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:14,973 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 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 430.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 950.4 MB in the beginning and 1.1 GB in the end (delta: -168.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 493.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15888.39 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 635.4 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -311.7 MB). Peak memory consumption was 926.3 MB. Max. memory is 11.5 GB. * Witness Printer took 77.10 ms. Allocated memory is still 1.8 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 868]: 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: 677]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 766]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: (((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || !(0 == \old(pumpRunning))) || (((1 <= pumpRunning && 2 <= waterLevel) && !(systemActive == 0)) && splverifierCounter == 0)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 171 locations, 1 error locations. SAFE Result, 15.8s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 5.5s AutomataDifference, 0.0s DeadEndRemovalTime, 2.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 2086 SDtfs, 2561 SDslu, 5351 SDs, 0 SdLazy, 6963 SolverSat, 1541 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1763 GetRequests, 1586 SyntacticMatches, 25 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1645occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.9s AbstIntTime, 5 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 712 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 71 LocationsWithAnnotation, 3647 PreInvPairs, 3748 NumberOfFragments, 1226 HoareAnnotationTreeSize, 3647 FomulaSimplifications, 10254 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 71 FomulaSimplificationsInter, 12558 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1845 NumberOfCodeBlocks, 1845 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2614 ConstructedInterpolants, 0 QuantifiedInterpolants, 558641 SizeOfPredicates, 20 NumberOfNonLiveVariables, 3998 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 763/858 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...