./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product55_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product55_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/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 9385f61fe99e17c8ecdfdd2ac56623ca621310c3 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 05:37:27,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:37:27,250 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:37:27,258 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:37:27,258 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:37:27,259 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:37:27,260 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:37:27,261 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:37:27,262 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:37:27,263 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:37:27,263 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:37:27,264 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:37:27,264 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:37:27,265 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:37:27,266 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:37:27,267 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:37:27,267 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:37:27,269 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:37:27,270 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:37:27,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:37:27,272 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:37:27,273 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:37:27,275 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:37:27,275 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:37:27,275 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:37:27,276 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:37:27,277 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:37:27,277 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:37:27,278 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:37:27,278 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:37:27,279 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:37:27,280 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:37:27,280 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:37:27,280 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:37:27,281 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:37:27,281 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:37:27,282 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 05:37:27,292 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:37:27,292 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:37:27,293 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:37:27,293 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:37:27,293 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:37:27,293 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:37:27,293 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:37:27,294 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 05:37:27,294 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:37:27,294 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:37:27,294 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 05:37:27,294 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 05:37:27,294 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:37:27,295 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:37:27,296 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:37:27,296 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:37:27,296 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:37:27,296 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:37:27,297 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:37:27,297 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:37:27,297 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:37:27,297 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:37:27,297 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:37:27,297 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:37:27,297 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:37:27,298 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:37:27,298 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:37:27,298 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:37:27,298 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:37:27,298 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:37:27,298 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:37:27,299 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:37:27,299 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:37:27,299 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 05:37:27,299 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:37:27,299 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:37:27,299 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 05:37:27,299 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_d385bacd-14e7-49e5-aa4a-d6d688841edb/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 -> 9385f61fe99e17c8ecdfdd2ac56623ca621310c3 [2018-11-23 05:37:27,323 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:37:27,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:37:27,334 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:37:27,335 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:37:27,336 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:37:27,336 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product55_true-unreach-call_false-termination.cil.c [2018-11-23 05:37:27,378 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/data/48340a2d8/5dffc1ed3f7b492b921d64904c71ddfd/FLAG16a016ca5 [2018-11-23 05:37:27,795 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:37:27,796 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/sv-benchmarks/c/product-lines/minepump_spec4_product55_true-unreach-call_false-termination.cil.c [2018-11-23 05:37:27,802 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/data/48340a2d8/5dffc1ed3f7b492b921d64904c71ddfd/FLAG16a016ca5 [2018-11-23 05:37:27,810 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/data/48340a2d8/5dffc1ed3f7b492b921d64904c71ddfd [2018-11-23 05:37:27,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:37:27,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:37:27,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:37:27,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:37:27,816 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:37:27,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:37:27" (1/1) ... [2018-11-23 05:37:27,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f50e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27, skipping insertion in model container [2018-11-23 05:37:27,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:37:27" (1/1) ... [2018-11-23 05:37:27,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:37:27,855 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:37:28,053 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:37:28,062 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:37:28,157 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:37:28,176 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:37:28,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28 WrapperNode [2018-11-23 05:37:28,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:37:28,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:37:28,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:37:28,177 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:37:28,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (1/1) ... [2018-11-23 05:37:28,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (1/1) ... [2018-11-23 05:37:28,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:37:28,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:37:28,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:37:28,202 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:37:28,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (1/1) ... [2018-11-23 05:37:28,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (1/1) ... [2018-11-23 05:37:28,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (1/1) ... [2018-11-23 05:37:28,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (1/1) ... [2018-11-23 05:37:28,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (1/1) ... [2018-11-23 05:37:28,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (1/1) ... [2018-11-23 05:37:28,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (1/1) ... [2018-11-23 05:37:28,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:37:28,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:37:28,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:37:28,230 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:37:28,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/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 [2018-11-23 05:37:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 05:37:28,269 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 05:37:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-23 05:37:28,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-23 05:37:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:37:28,269 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:37:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-23 05:37:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-23 05:37:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-23 05:37:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-23 05:37:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 05:37:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 05:37:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 05:37:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 05:37:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 05:37:28,271 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 05:37:28,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 05:37:28,271 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 05:37:28,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 05:37:28,271 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 05:37:28,271 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 05:37:28,271 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-23 05:37:28,271 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-23 05:37:28,272 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 05:37:28,272 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 05:37:28,272 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-23 05:37:28,272 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-23 05:37:28,272 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 05:37:28,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 05:37:28,272 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-23 05:37:28,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-23 05:37:28,272 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 05:37:28,273 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 05:37:28,273 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 05:37:28,273 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 05:37:28,273 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 05:37:28,273 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 05:37:28,273 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 05:37:28,273 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 05:37:28,273 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 05:37:28,274 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 05:37:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 05:37:28,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 05:37:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-23 05:37:28,274 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-23 05:37:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 05:37:28,274 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 05:37:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 05:37:28,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 05:37:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 05:37:28,275 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 05:37:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-23 05:37:28,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-23 05:37:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 05:37:28,275 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 05:37:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 05:37:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:37:28,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:37:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 05:37:28,276 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 05:37:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 05:37:28,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 05:37:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:37:28,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:37:28,723 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:37:28,723 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 05:37:28,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:37:28 BoogieIcfgContainer [2018-11-23 05:37:28,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:37:28,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:37:28,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:37:28,726 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:37:28,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:37:27" (1/3) ... [2018-11-23 05:37:28,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3843765f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:37:28, skipping insertion in model container [2018-11-23 05:37:28,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:28" (2/3) ... [2018-11-23 05:37:28,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3843765f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:37:28, skipping insertion in model container [2018-11-23 05:37:28,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:37:28" (3/3) ... [2018-11-23 05:37:28,728 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product55_true-unreach-call_false-termination.cil.c [2018-11-23 05:37:28,734 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:37:28,743 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 05:37:28,752 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 05:37:28,774 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:37:28,774 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:37:28,774 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:37:28,774 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:37:28,774 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:37:28,774 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:37:28,774 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:37:28,774 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:37:28,789 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-11-23 05:37:28,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 05:37:28,796 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:28,796 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:37:28,798 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:28,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:28,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1798098618, now seen corresponding path program 1 times [2018-11-23 05:37:28,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:28,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:28,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:28,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:28,832 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:28,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:37:28,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:37:28,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 05:37:28,978 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:37:28,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 05:37:28,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 05:37:28,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 05:37:28,995 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2018-11-23 05:37:29,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:29,030 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2018-11-23 05:37:29,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 05:37:29,031 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-23 05:37:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:29,041 INFO L225 Difference]: With dead ends: 304 [2018-11-23 05:37:29,041 INFO L226 Difference]: Without dead ends: 152 [2018-11-23 05:37:29,045 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 05:37:29,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-11-23 05:37:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-11-23 05:37:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-11-23 05:37:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 180 transitions. [2018-11-23 05:37:29,089 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 180 transitions. Word has length 46 [2018-11-23 05:37:29,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:29,089 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 180 transitions. [2018-11-23 05:37:29,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 05:37:29,090 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 180 transitions. [2018-11-23 05:37:29,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 05:37:29,092 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:29,092 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:37:29,092 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:29,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:29,092 INFO L82 PathProgramCache]: Analyzing trace with hash -86368443, now seen corresponding path program 1 times [2018-11-23 05:37:29,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:29,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:29,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:29,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:29,094 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:29,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:37:29,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:37:29,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 05:37:29,174 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:37:29,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 05:37:29,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 05:37:29,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 05:37:29,176 INFO L87 Difference]: Start difference. First operand 152 states and 180 transitions. Second operand 3 states. [2018-11-23 05:37:29,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:29,193 INFO L93 Difference]: Finished difference Result 247 states and 291 transitions. [2018-11-23 05:37:29,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 05:37:29,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 05:37:29,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:29,195 INFO L225 Difference]: With dead ends: 247 [2018-11-23 05:37:29,195 INFO L226 Difference]: Without dead ends: 143 [2018-11-23 05:37:29,196 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 05:37:29,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-11-23 05:37:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-11-23 05:37:29,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-11-23 05:37:29,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2018-11-23 05:37:29,208 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 47 [2018-11-23 05:37:29,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:29,208 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2018-11-23 05:37:29,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 05:37:29,208 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2018-11-23 05:37:29,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 05:37:29,210 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:29,210 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:37:29,210 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:29,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:29,210 INFO L82 PathProgramCache]: Analyzing trace with hash 458826405, now seen corresponding path program 1 times [2018-11-23 05:37:29,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:29,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:29,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:29,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:29,211 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:29,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:37:29,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:37:29,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 05:37:29,311 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:37:29,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 05:37:29,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 05:37:29,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 05:37:29,312 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 7 states. [2018-11-23 05:37:29,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:29,661 INFO L93 Difference]: Finished difference Result 431 states and 522 transitions. [2018-11-23 05:37:29,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 05:37:29,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-11-23 05:37:29,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:29,665 INFO L225 Difference]: With dead ends: 431 [2018-11-23 05:37:29,665 INFO L226 Difference]: Without dead ends: 312 [2018-11-23 05:37:29,666 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:37:29,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2018-11-23 05:37:29,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 304. [2018-11-23 05:37:29,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2018-11-23 05:37:29,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 368 transitions. [2018-11-23 05:37:29,696 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 368 transitions. Word has length 51 [2018-11-23 05:37:29,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:29,697 INFO L480 AbstractCegarLoop]: Abstraction has 304 states and 368 transitions. [2018-11-23 05:37:29,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 05:37:29,697 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 368 transitions. [2018-11-23 05:37:29,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 05:37:29,699 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:29,699 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:37:29,699 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:29,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:29,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1526064902, now seen corresponding path program 1 times [2018-11-23 05:37:29,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:29,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:29,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:29,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:29,701 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:29,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:37:29,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:37:29,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 05:37:29,804 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:37:29,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 05:37:29,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 05:37:29,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:37:29,805 INFO L87 Difference]: Start difference. First operand 304 states and 368 transitions. Second operand 10 states. [2018-11-23 05:37:30,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:30,237 INFO L93 Difference]: Finished difference Result 1096 states and 1428 transitions. [2018-11-23 05:37:30,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 05:37:30,237 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-11-23 05:37:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:30,242 INFO L225 Difference]: With dead ends: 1096 [2018-11-23 05:37:30,242 INFO L226 Difference]: Without dead ends: 816 [2018-11-23 05:37:30,244 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-23 05:37:30,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2018-11-23 05:37:30,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 804. [2018-11-23 05:37:30,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2018-11-23 05:37:30,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1012 transitions. [2018-11-23 05:37:30,294 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1012 transitions. Word has length 57 [2018-11-23 05:37:30,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:30,295 INFO L480 AbstractCegarLoop]: Abstraction has 804 states and 1012 transitions. [2018-11-23 05:37:30,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 05:37:30,295 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1012 transitions. [2018-11-23 05:37:30,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-23 05:37:30,297 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:30,297 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:37:30,298 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:30,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:30,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1633146220, now seen corresponding path program 1 times [2018-11-23 05:37:30,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:30,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:30,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:30,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:30,299 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:30,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:37:30,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:37:30,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 05:37:30,373 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:37:30,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 05:37:30,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 05:37:30,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 05:37:30,374 INFO L87 Difference]: Start difference. First operand 804 states and 1012 transitions. Second operand 4 states. [2018-11-23 05:37:30,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:30,612 INFO L93 Difference]: Finished difference Result 1972 states and 2707 transitions. [2018-11-23 05:37:30,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 05:37:30,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-11-23 05:37:30,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:30,618 INFO L225 Difference]: With dead ends: 1972 [2018-11-23 05:37:30,618 INFO L226 Difference]: Without dead ends: 1192 [2018-11-23 05:37:30,622 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:37:30,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2018-11-23 05:37:30,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1057. [2018-11-23 05:37:30,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2018-11-23 05:37:30,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1336 transitions. [2018-11-23 05:37:30,683 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1336 transitions. Word has length 61 [2018-11-23 05:37:30,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:30,684 INFO L480 AbstractCegarLoop]: Abstraction has 1057 states and 1336 transitions. [2018-11-23 05:37:30,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 05:37:30,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1336 transitions. [2018-11-23 05:37:30,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-23 05:37:30,686 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:30,686 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:37:30,686 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:30,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:30,686 INFO L82 PathProgramCache]: Analyzing trace with hash -994037289, now seen corresponding path program 1 times [2018-11-23 05:37:30,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:30,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:30,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:30,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:30,687 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-23 05:37:30,753 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:30,753 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:37:30,754 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-11-23 05:37:30,755 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [94], [103], [107], [111], [114], [119], [125], [127], [130], [132], [135], [148], [149], [152], [153], [205], [212], [215], [223], [248], [252], [253], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [295], [307], [308], [311], [312], [313], [314], [327], [328], [329], [330], [331] [2018-11-23 05:37:30,783 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:37:30,783 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:37:31,397 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 05:37:31,398 INFO L272 AbstractInterpreter]: Visited 67 different actions 145 times. Merged at 13 different actions 19 times. Never widened. Performed 5356 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5356 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-11-23 05:37:31,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:31,432 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 05:37:31,432 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:31,432 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 05:37:31,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:31,447 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 05:37:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:31,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:37:31,641 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 05:37:31,641 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 05:37:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 05:37:31,880 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 05:37:31,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-11-23 05:37:31,880 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 05:37:31,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 05:37:31,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 05:37:31,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-11-23 05:37:31,882 INFO L87 Difference]: Start difference. First operand 1057 states and 1336 transitions. Second operand 12 states. [2018-11-23 05:37:33,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:33,975 INFO L93 Difference]: Finished difference Result 2480 states and 3389 transitions. [2018-11-23 05:37:33,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-23 05:37:33,976 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2018-11-23 05:37:33,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:33,984 INFO L225 Difference]: With dead ends: 2480 [2018-11-23 05:37:33,984 INFO L226 Difference]: Without dead ends: 1697 [2018-11-23 05:37:33,988 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 180 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-11-23 05:37:33,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2018-11-23 05:37:34,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1491. [2018-11-23 05:37:34,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2018-11-23 05:37:34,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1909 transitions. [2018-11-23 05:37:34,107 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1909 transitions. Word has length 88 [2018-11-23 05:37:34,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:34,107 INFO L480 AbstractCegarLoop]: Abstraction has 1491 states and 1909 transitions. [2018-11-23 05:37:34,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 05:37:34,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1909 transitions. [2018-11-23 05:37:34,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-11-23 05:37:34,111 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:34,112 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 05:37:34,112 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:34,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:34,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1571824138, now seen corresponding path program 1 times [2018-11-23 05:37:34,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:34,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:34,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:34,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:34,113 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-23 05:37:34,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:34,189 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:37:34,189 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 145 with the following transitions: [2018-11-23 05:37:34,189 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], [103], [107], [111], [117], [119], [125], [127], [130], [148], [149], [150], [151], [152], [153], [154], [156], [161], [163], [164], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [245], [253], [256], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [295], [305], [306], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [347], [348] [2018-11-23 05:37:34,192 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:37:34,192 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:37:34,341 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 05:37:34,341 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Performed 2060 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2060 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 05:37:34,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:34,343 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 05:37:34,572 INFO L227 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 97.56% of their original sizes. [2018-11-23 05:37:34,573 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 05:37:34,620 INFO L415 sIntCurrentIteration]: We unified 143 AI predicates to 143 [2018-11-23 05:37:34,621 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 05:37:34,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 05:37:34,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [8] total 19 [2018-11-23 05:37:34,622 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:37:34,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 05:37:34,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 05:37:34,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-11-23 05:37:34,624 INFO L87 Difference]: Start difference. First operand 1491 states and 1909 transitions. Second operand 13 states. [2018-11-23 05:37:37,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:37,091 INFO L93 Difference]: Finished difference Result 2985 states and 3862 transitions. [2018-11-23 05:37:37,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 05:37:37,091 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 144 [2018-11-23 05:37:37,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:37,095 INFO L225 Difference]: With dead ends: 2985 [2018-11-23 05:37:37,095 INFO L226 Difference]: Without dead ends: 1518 [2018-11-23 05:37:37,097 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2018-11-23 05:37:37,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2018-11-23 05:37:37,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1491. [2018-11-23 05:37:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2018-11-23 05:37:37,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1907 transitions. [2018-11-23 05:37:37,143 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1907 transitions. Word has length 144 [2018-11-23 05:37:37,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:37,143 INFO L480 AbstractCegarLoop]: Abstraction has 1491 states and 1907 transitions. [2018-11-23 05:37:37,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 05:37:37,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1907 transitions. [2018-11-23 05:37:37,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-11-23 05:37:37,146 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:37,146 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:37:37,146 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:37,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:37,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1600324428, now seen corresponding path program 1 times [2018-11-23 05:37:37,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:37,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:37,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:37,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:37,147 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 05:37:37,206 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:37,207 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:37:37,207 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 145 with the following transitions: [2018-11-23 05:37:37,207 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], [103], [107], [111], [117], [119], [125], [127], [130], [148], [149], [150], [151], [152], [153], [154], [156], [159], [161], [163], [164], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [245], [253], [256], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [295], [305], [306], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [347], [348] [2018-11-23 05:37:37,209 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:37:37,209 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:37:37,687 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 05:37:37,687 INFO L272 AbstractInterpreter]: Visited 95 different actions 218 times. Merged at 14 different actions 14 times. Never widened. Performed 6767 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6767 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 132 variables. [2018-11-23 05:37:37,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:37,701 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 05:37:37,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:37,701 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/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 [2018-11-23 05:37:37,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:37,711 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 05:37:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:37,808 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:37:37,845 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-23 05:37:37,845 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 05:37:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 05:37:38,000 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 05:37:38,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-23 05:37:38,000 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 05:37:38,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 05:37:38,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 05:37:38,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:37:38,001 INFO L87 Difference]: Start difference. First operand 1491 states and 1907 transitions. Second operand 9 states. [2018-11-23 05:37:38,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:38,441 INFO L93 Difference]: Finished difference Result 2931 states and 3859 transitions. [2018-11-23 05:37:38,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 05:37:38,441 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 144 [2018-11-23 05:37:38,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:38,446 INFO L225 Difference]: With dead ends: 2931 [2018-11-23 05:37:38,446 INFO L226 Difference]: Without dead ends: 1464 [2018-11-23 05:37:38,450 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 286 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-11-23 05:37:38,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2018-11-23 05:37:38,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1406. [2018-11-23 05:37:38,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1406 states. [2018-11-23 05:37:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1675 transitions. [2018-11-23 05:37:38,519 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1675 transitions. Word has length 144 [2018-11-23 05:37:38,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:38,520 INFO L480 AbstractCegarLoop]: Abstraction has 1406 states and 1675 transitions. [2018-11-23 05:37:38,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 05:37:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1675 transitions. [2018-11-23 05:37:38,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-23 05:37:38,522 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:38,522 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:37:38,523 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:38,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:38,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1449438525, now seen corresponding path program 1 times [2018-11-23 05:37:38,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:38,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:38,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:38,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:38,524 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:38,672 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 05:37:38,672 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:38,672 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:37:38,672 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-11-23 05:37:38,673 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], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [153], [154], [156], [161], [163], [164], [172], [173], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [242], [245], [248], [252], [253], [256], [259], [261], [267], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [293], [294], [295], [297], [298], [299], [300], [303], [304], [305], [306], [307], [308], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [339], [340], [341], [342], [345], [346], [347], [348] [2018-11-23 05:37:38,676 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:37:38,676 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:37:39,715 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 05:37:39,715 INFO L272 AbstractInterpreter]: Visited 133 different actions 645 times. Merged at 18 different actions 51 times. Never widened. Performed 20419 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20419 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-11-23 05:37:39,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:39,716 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 05:37:39,716 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:39,716 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/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 [2018-11-23 05:37:39,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:39,723 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 05:37:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:39,796 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:37:39,883 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:37:39,883 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 05:37:40,091 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 05:37:40,114 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 05:37:40,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-23 05:37:40,115 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 05:37:40,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 05:37:40,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 05:37:40,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-23 05:37:40,116 INFO L87 Difference]: Start difference. First operand 1406 states and 1675 transitions. Second operand 14 states. [2018-11-23 05:37:41,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:41,688 INFO L93 Difference]: Finished difference Result 3216 states and 4072 transitions. [2018-11-23 05:37:41,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-23 05:37:41,689 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 157 [2018-11-23 05:37:41,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:41,697 INFO L225 Difference]: With dead ends: 3216 [2018-11-23 05:37:41,697 INFO L226 Difference]: Without dead ends: 1999 [2018-11-23 05:37:41,700 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 309 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-23 05:37:41,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-11-23 05:37:41,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1694. [2018-11-23 05:37:41,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1694 states. [2018-11-23 05:37:41,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2004 transitions. [2018-11-23 05:37:41,788 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2004 transitions. Word has length 157 [2018-11-23 05:37:41,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:41,788 INFO L480 AbstractCegarLoop]: Abstraction has 1694 states and 2004 transitions. [2018-11-23 05:37:41,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 05:37:41,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2004 transitions. [2018-11-23 05:37:41,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-11-23 05:37:41,793 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:41,793 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 05:37:41,793 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:41,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:41,793 INFO L82 PathProgramCache]: Analyzing trace with hash 819622895, now seen corresponding path program 1 times [2018-11-23 05:37:41,794 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:41,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:41,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:41,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:41,794 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 41 proven. 10 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-23 05:37:41,907 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:41,907 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:37:41,907 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-11-23 05:37:41,908 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], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [153], [154], [156], [161], [163], [164], [172], [173], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [242], [245], [248], [252], [253], [256], [259], [261], [267], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [293], [294], [295], [297], [298], [299], [300], [303], [304], [305], [306], [307], [308], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [339], [340], [341], [342], [345], [346], [347], [348] [2018-11-23 05:37:41,910 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:37:41,910 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:37:42,740 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 05:37:42,740 INFO L272 AbstractInterpreter]: Visited 134 different actions 663 times. Merged at 23 different actions 66 times. Never widened. Performed 20888 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20888 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-23 05:37:42,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:42,743 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 05:37:42,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:42,743 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/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 [2018-11-23 05:37:42,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:42,750 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 05:37:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:42,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:37:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-23 05:37:42,939 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 05:37:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 41 proven. 10 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-23 05:37:43,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:37:43,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-23 05:37:43,167 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:37:43,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 05:37:43,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 05:37:43,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-23 05:37:43,168 INFO L87 Difference]: Start difference. First operand 1694 states and 2004 transitions. Second operand 6 states. [2018-11-23 05:37:43,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:43,269 INFO L93 Difference]: Finished difference Result 3155 states and 3778 transitions. [2018-11-23 05:37:43,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 05:37:43,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 226 [2018-11-23 05:37:43,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:43,275 INFO L225 Difference]: With dead ends: 3155 [2018-11-23 05:37:43,275 INFO L226 Difference]: Without dead ends: 1650 [2018-11-23 05:37:43,278 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 447 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-23 05:37:43,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2018-11-23 05:37:43,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1650. [2018-11-23 05:37:43,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1650 states. [2018-11-23 05:37:43,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 1952 transitions. [2018-11-23 05:37:43,354 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 1952 transitions. Word has length 226 [2018-11-23 05:37:43,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:43,354 INFO L480 AbstractCegarLoop]: Abstraction has 1650 states and 1952 transitions. [2018-11-23 05:37:43,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 05:37:43,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 1952 transitions. [2018-11-23 05:37:43,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-11-23 05:37:43,359 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:37:43,359 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:37:43,359 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:37:43,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:43,359 INFO L82 PathProgramCache]: Analyzing trace with hash -87687068, now seen corresponding path program 1 times [2018-11-23 05:37:43,359 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:37:43,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:43,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:43,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:37:43,360 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:37:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-11-23 05:37:43,472 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:43,472 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:37:43,472 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-11-23 05:37:43,472 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], [66], [67], [68], [71], [72], [73], [74], [77], [79], [82], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [153], [154], [156], [161], [163], [164], [172], [173], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [242], [245], [248], [252], [253], [256], [259], [261], [267], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [293], [294], [295], [297], [298], [299], [300], [301], [302], [303], [304], [305], [306], [307], [308], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [339], [340], [341], [342], [345], [346], [347], [348] [2018-11-23 05:37:43,474 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:37:43,474 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:37:44,610 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 05:37:44,610 INFO L272 AbstractInterpreter]: Visited 139 different actions 788 times. Merged at 23 different actions 95 times. Never widened. Performed 33678 root evaluator evaluations with a maximum evaluation depth of 5. Performed 33678 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-23 05:37:44,615 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:37:44,615 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 05:37:44,615 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:37:44,615 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/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 [2018-11-23 05:37:44,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:37:44,621 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 05:37:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:37:44,695 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:37:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-11-23 05:37:44,747 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 05:37:44,986 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-11-23 05:37:45,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:37:45,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 5] total 12 [2018-11-23 05:37:45,001 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:37:45,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:37:45,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:37:45,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-23 05:37:45,002 INFO L87 Difference]: Start difference. First operand 1650 states and 1952 transitions. Second operand 5 states. [2018-11-23 05:37:45,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:37:45,031 INFO L93 Difference]: Finished difference Result 2175 states and 2586 transitions. [2018-11-23 05:37:45,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 05:37:45,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 260 [2018-11-23 05:37:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:37:45,032 INFO L225 Difference]: With dead ends: 2175 [2018-11-23 05:37:45,032 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 05:37:45,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 518 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-23 05:37:45,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 05:37:45,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 05:37:45,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 05:37:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 05:37:45,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 260 [2018-11-23 05:37:45,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:37:45,036 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 05:37:45,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:37:45,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 05:37:45,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 05:37:45,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 05:37:45,205 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,206 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,662 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,730 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:45,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:37:46,665 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2018-11-23 05:37:47,468 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 409 415) the Hoare annotation is: true [2018-11-23 05:37:47,468 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 409 415) no Hoare annotation was computed. [2018-11-23 05:37:47,468 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 416 424) no Hoare annotation was computed. [2018-11-23 05:37:47,468 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 416 424) the Hoare annotation is: true [2018-11-23 05:37:47,468 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 416 424) no Hoare annotation was computed. [2018-11-23 05:37:47,468 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 362 386) the Hoare annotation is: true [2018-11-23 05:37:47,468 INFO L444 ceAbstractionStarter]: At program point L376(line 376) 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))) [2018-11-23 05:37:47,468 INFO L448 ceAbstractionStarter]: For program point L374(lines 374 380) no Hoare annotation was computed. [2018-11-23 05:37:47,469 INFO L444 ceAbstractionStarter]: At program point L372(line 372) 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))) [2018-11-23 05:37:47,469 INFO L448 ceAbstractionStarter]: For program point L372-1(line 372) no Hoare annotation was computed. [2018-11-23 05:37:47,469 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 362 386) no Hoare annotation was computed. [2018-11-23 05:37:47,469 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 383) no Hoare annotation was computed. [2018-11-23 05:37:47,469 INFO L448 ceAbstractionStarter]: For program point L370-1(lines 362 386) no Hoare annotation was computed. [2018-11-23 05:37:47,469 INFO L451 ceAbstractionStarter]: At program point L368(line 368) the Hoare annotation is: true [2018-11-23 05:37:47,469 INFO L448 ceAbstractionStarter]: For program point L368-1(line 368) no Hoare annotation was computed. [2018-11-23 05:37:47,469 INFO L444 ceAbstractionStarter]: At program point L513(line 513) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 05:37:47,469 INFO L444 ceAbstractionStarter]: At program point L513-1(line 513) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 05:37:47,469 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 507 529) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 05:37:47,469 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 507 529) no Hoare annotation was computed. [2018-11-23 05:37:47,469 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 507 529) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L444 ceAbstractionStarter]: At program point L519(line 519) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 05:37:47,470 INFO L444 ceAbstractionStarter]: At program point L519-1(line 519) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 524) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 517 524) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L444 ceAbstractionStarter]: At program point L514(line 514) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point stopSystemEXIT(lines 344 358) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L444 ceAbstractionStarter]: At program point L350(line 350) the Hoare annotation is: (and (or (or (< |old(~pumpRunning~0)| 1) (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2))) (and (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1))) [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point L348(lines 348 354) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L444 ceAbstractionStarter]: At program point stopSystemENTRY(lines 344 358) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (or (< |old(~pumpRunning~0)| 1) (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2))) (and (not (= ~systemActive~0 0)) .cse0)) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1)))) [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point stopSystemFINAL(lines 344 358) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 261 269) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 261 269) the Hoare annotation is: true [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 261 269) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point L334(lines 334 338) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L451 ceAbstractionStarter]: At program point L332(line 332) the Hoare annotation is: true [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point L332-1(line 332) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 325 343) the Hoare annotation is: true [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 325 343) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 325 343) no Hoare annotation was computed. [2018-11-23 05:37:47,470 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 402 408) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 402 408) the Hoare annotation is: true [2018-11-23 05:37:47,471 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 497 506) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 497 506) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 497 506) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 250 260) the Hoare annotation is: true [2018-11-23 05:37:47,471 INFO L451 ceAbstractionStarter]: At program point L255(line 255) the Hoare annotation is: true [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point L255-1(line 255) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 250 260) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 250 260) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 242 249) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< |old(~pumpRunning~0)| 1) (= ~systemActive~0 0) (< ~waterLevel~0 1)) [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 242 249) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 242 249) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 976 989) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point L980(lines 980 986) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 976 989) the Hoare annotation is: true [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 976 989) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L444 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< |old(~pumpRunning~0)| 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-23 05:37:47,471 INFO L444 ceAbstractionStarter]: At program point L219(line 219) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< |old(~pumpRunning~0)| 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 225) no Hoare annotation was computed. [2018-11-23 05:37:47,471 INFO L444 ceAbstractionStarter]: At program point L215(line 215) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< |old(~pumpRunning~0)| 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-23 05:37:47,471 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 209 233) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L448 ceAbstractionStarter]: For program point L215-1(line 215) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L448 ceAbstractionStarter]: For program point L213(lines 213 230) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 209 233) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1))) (and (or .cse0 (< |old(~pumpRunning~0)| 1) .cse1 .cse2) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2))) [2018-11-23 05:37:47,472 INFO L444 ceAbstractionStarter]: At program point L228(line 228) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1))) [2018-11-23 05:37:47,472 INFO L448 ceAbstractionStarter]: For program point L228-1(lines 209 233) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 149 155) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 149 155) the Hoare annotation is: true [2018-11-23 05:37:47,472 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 45 110) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 05:37:47,472 INFO L444 ceAbstractionStarter]: At program point L93(line 93) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse0 (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|)) (and (<= 1 ~pumpRunning~0) (and (not (= ~systemActive~0 0)) .cse0) .cse1) (and .cse1 (= 0 ~pumpRunning~0) .cse0) (not (= |old(~waterLevel~0)| 1)))) [2018-11-23 05:37:47,472 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L444 ceAbstractionStarter]: At program point L91-1(lines 85 98) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)) (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)))) [2018-11-23 05:37:47,472 INFO L448 ceAbstractionStarter]: For program point L56(lines 55 102) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 45 110) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 98) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)) (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)))) [2018-11-23 05:37:47,472 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 81) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2018-11-23 05:37:47,472 INFO L444 ceAbstractionStarter]: At program point L100(lines 55 102) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 0) .cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~waterLevel~0)| 1)))) [2018-11-23 05:37:47,473 INFO L444 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 71) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 61) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L444 ceAbstractionStarter]: At program point L103(lines 54 104) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 45 110) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 990 998) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 990 998) the Hoare annotation is: true [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 990 998) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 234 241) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 234 241) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 234 241) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2)) [2018-11-23 05:37:47,473 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 967 975) the Hoare annotation is: true [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 967 975) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 967 975) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 306 324) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 319) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L451 ceAbstractionStarter]: At program point L313(line 313) the Hoare annotation is: true [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 319) no Hoare annotation was computed. [2018-11-23 05:37:47,473 INFO L448 ceAbstractionStarter]: For program point L313-1(line 313) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 306 324) the Hoare annotation is: true [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 306 324) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point L927-1(lines 923 934) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L451 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 923 934) the Hoare annotation is: true [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 923 934) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 935 943) the Hoare annotation is: true [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 935 943) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 935 943) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L451 ceAbstractionStarter]: At program point L450-1(lines 450 454) the Hoare annotation is: true [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 436 465) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point L447(line 447) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 436 465) the Hoare annotation is: true [2018-11-23 05:37:47,474 INFO L451 ceAbstractionStarter]: At program point L446-2(lines 446 460) the Hoare annotation is: true [2018-11-23 05:37:47,474 INFO L451 ceAbstractionStarter]: At program point L442(line 442) the Hoare annotation is: true [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point L442-1(line 442) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L451 ceAbstractionStarter]: At program point L461(lines 436 465) the Hoare annotation is: true [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point L450(lines 450 454) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point L129(lines 128 147) no Hoare annotation was computed. [2018-11-23 05:37:47,474 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 125 148) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse1 (or .cse0 .cse2)) (or (< |old(~pumpRunning~0)| 1) (= ~systemActive~0 0) .cse2 .cse1))) [2018-11-23 05:37:47,474 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 125 148) no Hoare annotation was computed. [2018-11-23 05:37:47,475 INFO L444 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 0)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse0 (and (not .cse3) (= ~waterLevel~0 |old(~waterLevel~0)|) .cse4)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse0 (or .cse1 .cse2)) (or (< |old(~pumpRunning~0)| 1) .cse3 .cse2 (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse4))))) [2018-11-23 05:37:47,475 INFO L444 ceAbstractionStarter]: At program point L136(lines 136 142) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0))) (and (or (< |old(~pumpRunning~0)| 1) .cse0 (< |old(~waterLevel~0)| 2) (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (not .cse0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< |old(~waterLevel~0)| 1))))) [2018-11-23 05:37:47,475 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 125 148) no Hoare annotation was computed. [2018-11-23 05:37:47,475 INFO L444 ceAbstractionStarter]: At program point L131(line 131) 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 (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-11-23 05:37:47,475 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 899 910) the Hoare annotation is: (or (< ~pumpRunning~0 1) (= ~systemActive~0 0) (< |old(~waterLevel~0)| 2) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-11-23 05:37:47,475 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 899 910) no Hoare annotation was computed. [2018-11-23 05:37:47,475 INFO L448 ceAbstractionStarter]: For program point L903-1(lines 899 910) no Hoare annotation was computed. [2018-11-23 05:37:47,475 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 490 496) no Hoare annotation was computed. [2018-11-23 05:37:47,475 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 490 496) the Hoare annotation is: true [2018-11-23 05:37:47,475 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:37:47,475 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-23 05:37:47,476 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 05:37:47,476 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 05:37:47,476 INFO L448 ceAbstractionStarter]: For program point L161(lines 161 178) no Hoare annotation was computed. [2018-11-23 05:37:47,476 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 157 181) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1)) [2018-11-23 05:37:47,476 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 157 181) no Hoare annotation was computed. [2018-11-23 05:37:47,476 INFO L444 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1)) [2018-11-23 05:37:47,476 INFO L448 ceAbstractionStarter]: For program point L176-1(lines 157 181) no Hoare annotation was computed. [2018-11-23 05:37:47,476 INFO L444 ceAbstractionStarter]: At program point L171(line 171) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 05:37:47,476 INFO L444 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 05:37:47,476 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 173) no Hoare annotation was computed. [2018-11-23 05:37:47,476 INFO L444 ceAbstractionStarter]: At program point L163(line 163) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1)) [2018-11-23 05:37:47,477 INFO L448 ceAbstractionStarter]: For program point L163-1(line 163) no Hoare annotation was computed. [2018-11-23 05:37:47,477 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 911 922) no Hoare annotation was computed. [2018-11-23 05:37:47,477 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 911 922) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= |old(~waterLevel~0)| 1))) (or (< ~pumpRunning~0 1) .cse1 .cse2 (= ~systemActive~0 0)))) [2018-11-23 05:37:47,477 INFO L448 ceAbstractionStarter]: For program point L915-1(lines 911 922) no Hoare annotation was computed. [2018-11-23 05:37:47,477 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 426 433) no Hoare annotation was computed. [2018-11-23 05:37:47,477 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 426 433) the Hoare annotation is: true [2018-11-23 05:37:47,477 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 430) no Hoare annotation was computed. [2018-11-23 05:37:47,477 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 426 433) no Hoare annotation was computed. [2018-11-23 05:37:47,477 INFO L444 ceAbstractionStarter]: At program point L193(line 193) 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 (and (<= 1 processEnvironment__wrappee__lowWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse1))) [2018-11-23 05:37:47,477 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 199) no Hoare annotation was computed. [2018-11-23 05:37:47,477 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 183 207) no Hoare annotation was computed. [2018-11-23 05:37:47,478 INFO L444 ceAbstractionStarter]: At program point L189(line 189) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< |old(~pumpRunning~0)| 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-23 05:37:47,478 INFO L448 ceAbstractionStarter]: For program point L189-1(line 189) no Hoare annotation was computed. [2018-11-23 05:37:47,478 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 204) no Hoare annotation was computed. [2018-11-23 05:37:47,478 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 183 207) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1))) (and (or .cse0 (< |old(~pumpRunning~0)| 1) .cse1 .cse2) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2))) [2018-11-23 05:37:47,478 INFO L444 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1))) [2018-11-23 05:37:47,478 INFO L448 ceAbstractionStarter]: For program point L202-1(lines 183 207) no Hoare annotation was computed. [2018-11-23 05:37:47,478 INFO L444 ceAbstractionStarter]: At program point L197(line 197) 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))) [2018-11-23 05:37:47,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:37:47 BoogieIcfgContainer [2018-11-23 05:37:47,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:37:47,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:37:47,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:37:47,488 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:37:47,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:37:28" (3/4) ... [2018-11-23 05:37:47,491 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 05:37:47,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 05:37:47,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2018-11-23 05:37:47,501 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-23 05:37:47,501 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 05:37:47,501 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 05:37:47,501 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 05:37:47,502 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 05:37:47,502 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 05:37:47,502 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 05:37:47,519 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0 == \old(pumpRunning)) || ((pumpRunning == 0 && splverifierCounter == 0) && \old(waterLevel) <= waterLevel)) || !(\old(systemActive) == 1)) || (((1 <= pumpRunning && 2 <= waterLevel) && !(systemActive == 0)) && splverifierCounter == 0)) || !(\old(waterLevel) == 1) [2018-11-23 05:37:47,519 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-11-23 05:37:47,555 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d385bacd-14e7-49e5-aa4a-d6d688841edb/bin-2019/utaipan/witness.graphml [2018-11-23 05:37:47,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:37:47,556 INFO L168 Benchmark]: Toolchain (without parser) took 19743.63 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.0 GB). Free memory was 956.4 MB in the beginning and 1.0 GB in the end (delta: -67.9 MB). Peak memory consumption was 953.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:37:47,556 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:37:47,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-23 05:37:47,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.05 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. [2018-11-23 05:37:47,557 INFO L168 Benchmark]: Boogie Preprocessor took 27.80 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 05:37:47,557 INFO L168 Benchmark]: RCFGBuilder took 493.61 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: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. [2018-11-23 05:37:47,557 INFO L168 Benchmark]: TraceAbstraction took 18763.58 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 892.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.6 MB). Peak memory consumption was 921.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:37:47,557 INFO L168 Benchmark]: Witness Printer took 67.31 ms. Allocated memory is still 2.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:37:47,559 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 362.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.05 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 27.80 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 493.61 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: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18763.58 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 892.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.6 MB). Peak memory consumption was 921.4 MB. Max. memory is 11.5 GB. * Witness Printer took 67.31 ms. Allocated memory is still 2.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 430]: 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: 446]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 436]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: (((!(0 == \old(pumpRunning)) || ((pumpRunning == 0 && splverifierCounter == 0) && \old(waterLevel) <= waterLevel)) || !(\old(systemActive) == 1)) || (((1 <= pumpRunning && 2 <= waterLevel) && !(systemActive == 0)) && splverifierCounter == 0)) || !(\old(waterLevel) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 165 locations, 1 error locations. SAFE Result, 18.7s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 7.8s AutomataDifference, 0.0s DeadEndRemovalTime, 2.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 2191 SDtfs, 3074 SDslu, 6502 SDs, 0 SdLazy, 7117 SolverSat, 1759 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 2091 GetRequests, 1894 SyntacticMatches, 25 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1255 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1694occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.3s AbstIntTime, 6 AbstIntIterations, 1 AbstIntStrong, 0.9975806019303628 AbsIntWeakeningRatio, 0.8811188811188811 AbsIntAvgWeakeningVarsNumRemoved, 63.58041958041958 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 751 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 4323 PreInvPairs, 4420 NumberOfFragments, 1230 HoareAnnotationTreeSize, 4323 FomulaSimplifications, 17183 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 69 FomulaSimplificationsInter, 12801 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 2156 NumberOfCodeBlocks, 2156 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3010 ConstructedInterpolants, 0 QuantifiedInterpolants, 714822 SizeOfPredicates, 20 NumberOfNonLiveVariables, 4580 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 1298/1417 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...