./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product59_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product59_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/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 5a35b365de7365eb1088366c2b8165f4a523d787 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:26:12,334 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:26:12,335 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:26:12,341 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:26:12,341 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:26:12,342 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:26:12,343 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:26:12,345 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:26:12,346 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:26:12,347 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:26:12,347 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:26:12,348 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:26:12,348 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:26:12,349 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:26:12,350 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:26:12,350 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:26:12,351 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:26:12,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:26:12,354 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:26:12,355 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:26:12,356 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:26:12,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:26:12,359 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:26:12,359 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:26:12,359 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:26:12,360 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:26:12,361 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:26:12,361 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:26:12,362 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:26:12,363 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:26:12,363 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:26:12,363 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:26:12,363 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:26:12,364 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:26:12,364 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:26:12,365 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:26:12,365 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:26:12,375 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:26:12,376 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:26:12,376 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:26:12,377 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:26:12,377 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:26:12,377 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:26:12,377 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:26:12,377 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:26:12,377 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:26:12,377 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:26:12,378 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:26:12,378 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:26:12,378 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:26:12,378 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:26:12,379 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:26:12,379 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:26:12,379 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:26:12,379 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:26:12,379 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:26:12,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:26:12,379 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:26:12,380 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:26:12,380 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:26:12,380 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:26:12,380 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:26:12,380 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:26:12,380 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:26:12,380 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:26:12,381 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:26:12,381 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:26:12,381 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:26:12,381 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:26:12,381 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:26:12,381 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:26:12,381 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:26:12,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:26:12,382 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:26:12,382 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_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/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 -> 5a35b365de7365eb1088366c2b8165f4a523d787 [2018-11-18 12:26:12,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:26:12,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:26:12,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:26:12,413 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:26:12,413 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:26:12,413 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product59_true-unreach-call_false-termination.cil.c [2018-11-18 12:26:12,453 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/data/4205280dc/20a83aa9596b4a6e9f7a937098624495/FLAG6932a5b1d [2018-11-18 12:26:12,897 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:26:12,897 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/sv-benchmarks/c/product-lines/minepump_spec4_product59_true-unreach-call_false-termination.cil.c [2018-11-18 12:26:12,904 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/data/4205280dc/20a83aa9596b4a6e9f7a937098624495/FLAG6932a5b1d [2018-11-18 12:26:12,918 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/data/4205280dc/20a83aa9596b4a6e9f7a937098624495 [2018-11-18 12:26:12,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:26:12,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:26:12,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:26:12,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:26:12,924 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:26:12,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:26:12" (1/1) ... [2018-11-18 12:26:12,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:12, skipping insertion in model container [2018-11-18 12:26:12,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:26:12" (1/1) ... [2018-11-18 12:26:12,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:26:12,964 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:26:13,163 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:26:13,172 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:26:13,286 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:26:13,304 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:26:13,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13 WrapperNode [2018-11-18 12:26:13,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:26:13,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:26:13,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:26:13,305 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:26:13,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (1/1) ... [2018-11-18 12:26:13,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (1/1) ... [2018-11-18 12:26:13,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:26:13,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:26:13,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:26:13,333 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:26:13,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (1/1) ... [2018-11-18 12:26:13,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (1/1) ... [2018-11-18 12:26:13,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (1/1) ... [2018-11-18 12:26:13,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (1/1) ... [2018-11-18 12:26:13,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (1/1) ... [2018-11-18 12:26:13,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (1/1) ... [2018-11-18 12:26:13,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (1/1) ... [2018-11-18 12:26:13,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:26:13,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:26:13,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:26:13,363 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:26:13,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:26:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 12:26:13,412 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 12:26:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 12:26:13,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 12:26:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:26:13,412 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:26:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-18 12:26:13,412 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-18 12:26:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 12:26:13,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 12:26:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:26:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 12:26:13,413 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 12:26:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 12:26:13,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 12:26:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 12:26:13,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 12:26:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 12:26:13,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 12:26:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 12:26:13,414 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 12:26:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 12:26:13,414 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 12:26:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 12:26:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 12:26:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 12:26:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 12:26:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 12:26:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 12:26:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 12:26:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 12:26:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 12:26:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 12:26:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 12:26:13,416 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 12:26:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 12:26:13,416 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 12:26:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 12:26:13,416 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 12:26:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 12:26:13,416 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 12:26:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 12:26:13,417 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 12:26:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 12:26:13,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 12:26:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 12:26:13,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 12:26:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 12:26:13,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 12:26:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 12:26:13,417 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 12:26:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 12:26:13,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 12:26:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 12:26:13,418 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 12:26:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:26:13,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:26:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 12:26:13,418 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 12:26:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 12:26:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 12:26:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:26:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:26:13,920 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:26:13,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:26:13 BoogieIcfgContainer [2018-11-18 12:26:13,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:26:13,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:26:13,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:26:13,924 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:26:13,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:26:12" (1/3) ... [2018-11-18 12:26:13,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382e0d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:26:13, skipping insertion in model container [2018-11-18 12:26:13,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:26:13" (2/3) ... [2018-11-18 12:26:13,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382e0d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:26:13, skipping insertion in model container [2018-11-18 12:26:13,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:26:13" (3/3) ... [2018-11-18 12:26:13,926 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59_true-unreach-call_false-termination.cil.c [2018-11-18 12:26:13,933 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:26:13,941 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:26:13,952 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:26:13,976 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:26:13,976 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:26:13,976 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:26:13,976 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:26:13,976 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:26:13,977 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:26:13,977 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:26:13,977 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:26:13,992 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2018-11-18 12:26:13,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 12:26:13,999 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:14,000 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:14,002 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:14,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:14,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1184174440, now seen corresponding path program 1 times [2018-11-18 12:26:14,010 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:14,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:14,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:14,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:14,044 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:26:14,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:26:14,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:26:14,223 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:14,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:26:14,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:26:14,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:26:14,241 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 2 states. [2018-11-18 12:26:14,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:14,274 INFO L93 Difference]: Finished difference Result 302 states and 369 transitions. [2018-11-18 12:26:14,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:26:14,275 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 12:26:14,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:14,285 INFO L225 Difference]: With dead ends: 302 [2018-11-18 12:26:14,285 INFO L226 Difference]: Without dead ends: 151 [2018-11-18 12:26:14,289 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:26:14,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-11-18 12:26:14,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-11-18 12:26:14,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-11-18 12:26:14,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 176 transitions. [2018-11-18 12:26:14,331 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 176 transitions. Word has length 46 [2018-11-18 12:26:14,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:14,331 INFO L480 AbstractCegarLoop]: Abstraction has 151 states and 176 transitions. [2018-11-18 12:26:14,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:26:14,331 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 176 transitions. [2018-11-18 12:26:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 12:26:14,334 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:14,334 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:14,335 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:14,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:14,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1890016543, now seen corresponding path program 1 times [2018-11-18 12:26:14,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:14,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:14,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:14,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:14,336 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:26:14,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:26:14,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:26:14,415 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:14,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:26:14,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:26:14,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:26:14,417 INFO L87 Difference]: Start difference. First operand 151 states and 176 transitions. Second operand 3 states. [2018-11-18 12:26:14,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:14,438 INFO L93 Difference]: Finished difference Result 243 states and 281 transitions. [2018-11-18 12:26:14,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:26:14,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 12:26:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:14,440 INFO L225 Difference]: With dead ends: 243 [2018-11-18 12:26:14,440 INFO L226 Difference]: Without dead ends: 141 [2018-11-18 12:26:14,441 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:26:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-18 12:26:14,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-11-18 12:26:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-11-18 12:26:14,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 163 transitions. [2018-11-18 12:26:14,454 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 163 transitions. Word has length 48 [2018-11-18 12:26:14,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:14,454 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 163 transitions. [2018-11-18 12:26:14,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:26:14,454 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 163 transitions. [2018-11-18 12:26:14,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 12:26:14,456 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:14,456 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:14,456 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:14,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:14,458 INFO L82 PathProgramCache]: Analyzing trace with hash 226415917, now seen corresponding path program 1 times [2018-11-18 12:26:14,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:14,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:14,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:14,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:14,459 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:26:14,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:26:14,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:26:14,569 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:14,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:26:14,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:26:14,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:26:14,570 INFO L87 Difference]: Start difference. First operand 141 states and 163 transitions. Second operand 7 states. [2018-11-18 12:26:14,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:14,955 INFO L93 Difference]: Finished difference Result 426 states and 508 transitions. [2018-11-18 12:26:14,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:26:14,956 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-18 12:26:14,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:14,959 INFO L225 Difference]: With dead ends: 426 [2018-11-18 12:26:14,959 INFO L226 Difference]: Without dead ends: 309 [2018-11-18 12:26:14,961 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:26:14,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2018-11-18 12:26:14,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 301. [2018-11-18 12:26:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2018-11-18 12:26:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 359 transitions. [2018-11-18 12:26:14,991 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 359 transitions. Word has length 52 [2018-11-18 12:26:14,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:14,992 INFO L480 AbstractCegarLoop]: Abstraction has 301 states and 359 transitions. [2018-11-18 12:26:14,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:26:14,992 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 359 transitions. [2018-11-18 12:26:14,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 12:26:14,995 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:14,995 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:14,996 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:14,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:14,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1824946267, now seen corresponding path program 1 times [2018-11-18 12:26:14,997 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:14,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:14,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:14,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:14,998 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:26:15,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:26:15,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 12:26:15,113 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:15,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 12:26:15,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:26:15,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:26:15,114 INFO L87 Difference]: Start difference. First operand 301 states and 359 transitions. Second operand 10 states. [2018-11-18 12:26:15,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:15,595 INFO L93 Difference]: Finished difference Result 1084 states and 1384 transitions. [2018-11-18 12:26:15,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 12:26:15,596 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2018-11-18 12:26:15,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:15,601 INFO L225 Difference]: With dead ends: 1084 [2018-11-18 12:26:15,601 INFO L226 Difference]: Without dead ends: 807 [2018-11-18 12:26:15,603 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:26:15,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2018-11-18 12:26:15,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 795. [2018-11-18 12:26:15,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2018-11-18 12:26:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 981 transitions. [2018-11-18 12:26:15,648 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 981 transitions. Word has length 58 [2018-11-18 12:26:15,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:15,648 INFO L480 AbstractCegarLoop]: Abstraction has 795 states and 981 transitions. [2018-11-18 12:26:15,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 12:26:15,648 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 981 transitions. [2018-11-18 12:26:15,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 12:26:15,651 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:15,651 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:15,651 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:15,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:15,652 INFO L82 PathProgramCache]: Analyzing trace with hash -373829727, now seen corresponding path program 1 times [2018-11-18 12:26:15,652 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:15,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:15,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:15,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:15,654 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:26:15,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:26:15,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:26:15,723 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:15,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:26:15,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:26:15,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:26:15,724 INFO L87 Difference]: Start difference. First operand 795 states and 981 transitions. Second operand 4 states. [2018-11-18 12:26:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:15,998 INFO L93 Difference]: Finished difference Result 1971 states and 2640 transitions. [2018-11-18 12:26:16,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:26:16,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-11-18 12:26:16,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:16,007 INFO L225 Difference]: With dead ends: 1971 [2018-11-18 12:26:16,007 INFO L226 Difference]: Without dead ends: 1200 [2018-11-18 12:26:16,010 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:26:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2018-11-18 12:26:16,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1056. [2018-11-18 12:26:16,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-11-18 12:26:16,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1313 transitions. [2018-11-18 12:26:16,078 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1313 transitions. Word has length 62 [2018-11-18 12:26:16,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:16,078 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1313 transitions. [2018-11-18 12:26:16,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:26:16,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1313 transitions. [2018-11-18 12:26:16,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-11-18 12:26:16,080 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:16,081 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:16,081 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:16,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:16,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1996774119, now seen corresponding path program 1 times [2018-11-18 12:26:16,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:16,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:16,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:16,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:16,082 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:16,164 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-18 12:26:16,164 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:16,164 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:26:16,165 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 91 with the following transitions: [2018-11-18 12:26:16,167 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [94], [98], [104], [108], [112], [115], [120], [126], [128], [131], [133], [136], [151], [152], [175], [176], [218], [225], [228], [236], [261], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [289], [301], [302], [305], [306], [307], [308], [325], [326], [327], [328], [329] [2018-11-18 12:26:16,199 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:26:16,199 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:26:16,717 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 12:26:16,718 INFO L272 AbstractInterpreter]: Visited 66 different actions 78 times. Merged at 7 different actions 7 times. Never widened. Performed 3022 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3022 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 133 variables. [2018-11-18 12:26:16,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:16,725 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 12:26:17,052 INFO L227 lantSequenceWeakener]: Weakened 86 states. On average, predicates are now at 97.88% of their original sizes. [2018-11-18 12:26:17,052 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 12:26:17,141 INFO L415 sIntCurrentIteration]: We unified 89 AI predicates to 89 [2018-11-18 12:26:17,141 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 12:26:17,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:26:17,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-11-18 12:26:17,142 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:17,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 12:26:17,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 12:26:17,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-11-18 12:26:17,143 INFO L87 Difference]: Start difference. First operand 1056 states and 1313 transitions. Second operand 17 states. [2018-11-18 12:26:20,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:20,797 INFO L93 Difference]: Finished difference Result 2224 states and 2788 transitions. [2018-11-18 12:26:20,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-18 12:26:20,797 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 90 [2018-11-18 12:26:20,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:20,801 INFO L225 Difference]: With dead ends: 2224 [2018-11-18 12:26:20,801 INFO L226 Difference]: Without dead ends: 1423 [2018-11-18 12:26:20,803 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 97 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2018-11-18 12:26:20,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2018-11-18 12:26:20,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1390. [2018-11-18 12:26:20,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2018-11-18 12:26:20,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1700 transitions. [2018-11-18 12:26:20,850 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1700 transitions. Word has length 90 [2018-11-18 12:26:20,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:20,851 INFO L480 AbstractCegarLoop]: Abstraction has 1390 states and 1700 transitions. [2018-11-18 12:26:20,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 12:26:20,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1700 transitions. [2018-11-18 12:26:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-18 12:26:20,854 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:20,854 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:20,855 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:20,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:20,855 INFO L82 PathProgramCache]: Analyzing trace with hash 214288850, now seen corresponding path program 1 times [2018-11-18 12:26:20,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:20,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:20,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:20,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:20,856 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 12:26:20,931 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:20,931 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:26:20,931 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-11-18 12:26:20,931 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [120], [126], [128], [131], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [169], [173], [174], [175], [176], [184], [185], [215], [218], [222], [228], [231], [235], [236], [240], [243], [245], [248], [255], [258], [261], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [287], [288], [289], [291], [292], [293], [294], [297], [298], [299], [300], [301], [302], [307], [308], [311], [312], [313], [314], [315], [316], [321], [322], [323], [324], [325], [326], [327], [328], [329], [331], [332], [333], [334], [337], [338] [2018-11-18 12:26:20,935 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:26:20,935 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:26:21,031 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 12:26:21,031 INFO L272 AbstractInterpreter]: Visited 63 different actions 63 times. Never merged. Never widened. Performed 1992 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1992 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 12:26:21,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:21,037 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 12:26:21,169 INFO L227 lantSequenceWeakener]: Weakened 77 states. On average, predicates are now at 96.69% of their original sizes. [2018-11-18 12:26:21,169 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 12:26:21,246 INFO L415 sIntCurrentIteration]: We unified 156 AI predicates to 156 [2018-11-18 12:26:21,246 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 12:26:21,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:26:21,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-11-18 12:26:21,246 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:21,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 12:26:21,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 12:26:21,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-11-18 12:26:21,247 INFO L87 Difference]: Start difference. First operand 1390 states and 1700 transitions. Second operand 15 states. [2018-11-18 12:26:23,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:23,693 INFO L93 Difference]: Finished difference Result 3265 states and 4045 transitions. [2018-11-18 12:26:23,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 12:26:23,694 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 157 [2018-11-18 12:26:23,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:23,699 INFO L225 Difference]: With dead ends: 3265 [2018-11-18 12:26:23,699 INFO L226 Difference]: Without dead ends: 1899 [2018-11-18 12:26:23,701 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 160 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:26:23,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2018-11-18 12:26:23,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1860. [2018-11-18 12:26:23,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1860 states. [2018-11-18 12:26:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2250 transitions. [2018-11-18 12:26:23,760 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2250 transitions. Word has length 157 [2018-11-18 12:26:23,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:23,760 INFO L480 AbstractCegarLoop]: Abstraction has 1860 states and 2250 transitions. [2018-11-18 12:26:23,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 12:26:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2250 transitions. [2018-11-18 12:26:23,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-18 12:26:23,763 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:23,764 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:23,764 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:23,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:23,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1310833751, now seen corresponding path program 1 times [2018-11-18 12:26:23,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:23,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:23,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:23,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:23,765 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 12:26:23,836 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:23,836 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:26:23,837 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-11-18 12:26:23,837 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [126], [128], [131], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [169], [173], [174], [175], [176], [184], [185], [215], [218], [222], [228], [231], [235], [236], [240], [243], [245], [248], [255], [258], [261], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [287], [288], [289], [291], [292], [293], [294], [297], [298], [299], [300], [301], [302], [307], [308], [311], [312], [313], [314], [315], [316], [321], [322], [323], [324], [325], [326], [327], [328], [329], [331], [332], [333], [334], [337], [338] [2018-11-18 12:26:23,840 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:26:23,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:26:24,011 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 12:26:24,011 INFO L272 AbstractInterpreter]: Visited 64 different actions 94 times. Merged at 5 different actions 5 times. Never widened. Performed 4577 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4577 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 12:26:24,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:24,021 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 12:26:24,242 INFO L227 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 96.66% of their original sizes. [2018-11-18 12:26:24,242 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 12:26:24,353 INFO L415 sIntCurrentIteration]: We unified 152 AI predicates to 152 [2018-11-18 12:26:24,353 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 12:26:24,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:26:24,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-18 12:26:24,353 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:24,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-18 12:26:24,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-18 12:26:24,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:26:24,354 INFO L87 Difference]: Start difference. First operand 1860 states and 2250 transitions. Second operand 19 states. [2018-11-18 12:26:28,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:28,272 INFO L93 Difference]: Finished difference Result 3729 states and 4534 transitions. [2018-11-18 12:26:28,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 12:26:28,272 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 153 [2018-11-18 12:26:28,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:28,277 INFO L225 Difference]: With dead ends: 3729 [2018-11-18 12:26:28,277 INFO L226 Difference]: Without dead ends: 1893 [2018-11-18 12:26:28,280 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2018-11-18 12:26:28,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2018-11-18 12:26:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1845. [2018-11-18 12:26:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1845 states. [2018-11-18 12:26:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 2228 transitions. [2018-11-18 12:26:28,337 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 2228 transitions. Word has length 153 [2018-11-18 12:26:28,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:28,338 INFO L480 AbstractCegarLoop]: Abstraction has 1845 states and 2228 transitions. [2018-11-18 12:26:28,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-18 12:26:28,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 2228 transitions. [2018-11-18 12:26:28,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-11-18 12:26:28,341 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:28,342 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:28,342 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:28,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:28,342 INFO L82 PathProgramCache]: Analyzing trace with hash 478704398, now seen corresponding path program 1 times [2018-11-18 12:26:28,342 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:28,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:28,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:28,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:28,343 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:28,414 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 12:26:28,414 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:28,414 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:26:28,414 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 162 with the following transitions: [2018-11-18 12:26:28,415 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [120], [123], [126], [128], [131], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [169], [173], [174], [175], [176], [181], [183], [184], [185], [215], [218], [222], [228], [231], [235], [236], [240], [243], [245], [248], [255], [258], [261], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [287], [288], [289], [291], [292], [293], [294], [297], [298], [299], [300], [301], [302], [303], [304], [307], [308], [311], [312], [313], [314], [315], [316], [321], [322], [323], [324], [325], [326], [327], [328], [329], [331], [332], [333], [334], [337], [338] [2018-11-18 12:26:28,417 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:26:28,418 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:26:28,592 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 12:26:28,592 INFO L272 AbstractInterpreter]: Visited 68 different actions 96 times. Merged at 3 different actions 3 times. Never widened. Performed 4694 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4694 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 12:26:28,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:28,601 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 12:26:28,742 INFO L227 lantSequenceWeakener]: Weakened 81 states. On average, predicates are now at 96.67% of their original sizes. [2018-11-18 12:26:28,742 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 12:26:28,843 INFO L415 sIntCurrentIteration]: We unified 160 AI predicates to 160 [2018-11-18 12:26:28,843 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 12:26:28,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:26:28,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [5] total 21 [2018-11-18 12:26:28,844 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:28,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 12:26:28,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 12:26:28,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-11-18 12:26:28,845 INFO L87 Difference]: Start difference. First operand 1845 states and 2228 transitions. Second operand 18 states. [2018-11-18 12:26:33,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:33,877 INFO L93 Difference]: Finished difference Result 3721 states and 4579 transitions. [2018-11-18 12:26:33,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 12:26:33,878 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 161 [2018-11-18 12:26:33,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:33,884 INFO L225 Difference]: With dead ends: 3721 [2018-11-18 12:26:33,884 INFO L226 Difference]: Without dead ends: 2490 [2018-11-18 12:26:33,886 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=750, Unknown=0, NotChecked=0, Total=930 [2018-11-18 12:26:33,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2018-11-18 12:26:33,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2284. [2018-11-18 12:26:33,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2284 states. [2018-11-18 12:26:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 2733 transitions. [2018-11-18 12:26:33,959 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 2733 transitions. Word has length 161 [2018-11-18 12:26:33,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:33,960 INFO L480 AbstractCegarLoop]: Abstraction has 2284 states and 2733 transitions. [2018-11-18 12:26:33,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 12:26:33,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 2733 transitions. [2018-11-18 12:26:33,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-18 12:26:33,964 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:33,964 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:33,964 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:33,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:33,965 INFO L82 PathProgramCache]: Analyzing trace with hash 867452298, now seen corresponding path program 1 times [2018-11-18 12:26:33,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:33,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:33,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:33,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:33,966 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:34,074 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 12:26:34,074 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:34,074 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:26:34,074 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-11-18 12:26:34,074 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [123], [126], [128], [131], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [181], [183], [184], [185], [215], [218], [222], [228], [231], [235], [236], [240], [243], [245], [248], [255], [258], [261], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [287], [288], [289], [291], [292], [293], [294], [297], [298], [299], [300], [301], [302], [303], [304], [307], [308], [311], [312], [313], [314], [315], [316], [321], [322], [323], [324], [325], [326], [327], [328], [329], [331], [332], [333], [334], [337], [338] [2018-11-18 12:26:34,077 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:26:34,077 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:26:35,467 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:26:35,467 INFO L272 AbstractInterpreter]: Visited 135 different actions 1160 times. Merged at 21 different actions 88 times. Never widened. Performed 38663 root evaluator evaluations with a maximum evaluation depth of 5. Performed 38663 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 22 fixpoints after 5 different actions. Largest state had 132 variables. [2018-11-18 12:26:35,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:35,478 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:26:35,478 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:35,478 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:26:35,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:35,495 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:26:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:35,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 12:26:35,714 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:26:36,472 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 12:26:36,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:26:36,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-18 12:26:36,490 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:36,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 12:26:36,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 12:26:36,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 12:26:36,491 INFO L87 Difference]: Start difference. First operand 2284 states and 2733 transitions. Second operand 8 states. [2018-11-18 12:26:36,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:36,789 INFO L93 Difference]: Finished difference Result 5658 states and 6887 transitions. [2018-11-18 12:26:36,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:26:36,790 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2018-11-18 12:26:36,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:36,798 INFO L225 Difference]: With dead ends: 5658 [2018-11-18 12:26:36,798 INFO L226 Difference]: Without dead ends: 3398 [2018-11-18 12:26:36,802 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 296 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 12:26:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3398 states. [2018-11-18 12:26:36,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3398 to 3391. [2018-11-18 12:26:36,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3391 states. [2018-11-18 12:26:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3391 states to 3391 states and 4022 transitions. [2018-11-18 12:26:36,907 INFO L78 Accepts]: Start accepts. Automaton has 3391 states and 4022 transitions. Word has length 157 [2018-11-18 12:26:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:36,907 INFO L480 AbstractCegarLoop]: Abstraction has 3391 states and 4022 transitions. [2018-11-18 12:26:36,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 12:26:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3391 states and 4022 transitions. [2018-11-18 12:26:36,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-18 12:26:36,912 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:36,912 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:36,912 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:36,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:36,913 INFO L82 PathProgramCache]: Analyzing trace with hash -929849778, now seen corresponding path program 1 times [2018-11-18 12:26:36,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:36,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:36,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:36,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:36,914 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 12:26:37,021 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:37,021 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:26:37,022 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-11-18 12:26:37,022 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [126], [128], [131], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [215], [218], [222], [228], [231], [235], [236], [240], [243], [245], [248], [255], [258], [261], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [287], [288], [289], [291], [292], [293], [294], [297], [298], [299], [300], [301], [302], [307], [308], [311], [312], [313], [314], [315], [316], [321], [322], [323], [324], [325], [326], [327], [328], [329], [331], [332], [333], [334], [337], [338] [2018-11-18 12:26:37,024 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:26:37,024 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:26:37,591 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:26:37,591 INFO L272 AbstractInterpreter]: Visited 130 different actions 445 times. Merged at 16 different actions 35 times. Never widened. Performed 15134 root evaluator evaluations with a maximum evaluation depth of 5. Performed 15134 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 3 different actions. Largest state had 132 variables. [2018-11-18 12:26:37,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:37,593 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:26:37,593 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:37,593 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:26:37,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:37,600 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:26:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:37,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:37,743 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:26:37,743 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:26:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 12:26:37,947 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:26:37,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 12:26:37,948 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:26:37,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 12:26:37,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 12:26:37,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-18 12:26:37,949 INFO L87 Difference]: Start difference. First operand 3391 states and 4022 transitions. Second operand 14 states. [2018-11-18 12:26:39,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:39,591 INFO L93 Difference]: Finished difference Result 7084 states and 9672 transitions. [2018-11-18 12:26:39,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-18 12:26:39,592 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 153 [2018-11-18 12:26:39,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:39,616 INFO L225 Difference]: With dead ends: 7084 [2018-11-18 12:26:39,616 INFO L226 Difference]: Without dead ends: 5625 [2018-11-18 12:26:39,623 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 302 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 12:26:39,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5625 states. [2018-11-18 12:26:39,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5625 to 4715. [2018-11-18 12:26:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4715 states. [2018-11-18 12:26:39,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4715 states to 4715 states and 5684 transitions. [2018-11-18 12:26:39,888 INFO L78 Accepts]: Start accepts. Automaton has 4715 states and 5684 transitions. Word has length 153 [2018-11-18 12:26:39,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:39,888 INFO L480 AbstractCegarLoop]: Abstraction has 4715 states and 5684 transitions. [2018-11-18 12:26:39,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 12:26:39,888 INFO L276 IsEmpty]: Start isEmpty. Operand 4715 states and 5684 transitions. [2018-11-18 12:26:39,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-18 12:26:39,895 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:39,895 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:39,895 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:39,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:39,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1978952093, now seen corresponding path program 1 times [2018-11-18 12:26:39,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:39,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:39,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:39,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:39,897 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:39,976 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 12:26:39,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:26:39,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:26:39,977 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:39,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:26:39,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:26:39,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:26:39,978 INFO L87 Difference]: Start difference. First operand 4715 states and 5684 transitions. Second operand 4 states. [2018-11-18 12:26:40,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:40,199 INFO L93 Difference]: Finished difference Result 5290 states and 6387 transitions. [2018-11-18 12:26:40,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:26:40,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 155 [2018-11-18 12:26:40,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:40,206 INFO L225 Difference]: With dead ends: 5290 [2018-11-18 12:26:40,206 INFO L226 Difference]: Without dead ends: 2223 [2018-11-18 12:26:40,211 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:26:40,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2018-11-18 12:26:40,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2063. [2018-11-18 12:26:40,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2063 states. [2018-11-18 12:26:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2063 states to 2063 states and 2427 transitions. [2018-11-18 12:26:40,277 INFO L78 Accepts]: Start accepts. Automaton has 2063 states and 2427 transitions. Word has length 155 [2018-11-18 12:26:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:40,277 INFO L480 AbstractCegarLoop]: Abstraction has 2063 states and 2427 transitions. [2018-11-18 12:26:40,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:26:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2063 states and 2427 transitions. [2018-11-18 12:26:40,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-11-18 12:26:40,280 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:40,281 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:40,281 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:40,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:40,281 INFO L82 PathProgramCache]: Analyzing trace with hash -321568394, now seen corresponding path program 1 times [2018-11-18 12:26:40,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:40,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:40,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:40,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:40,282 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:40,380 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-18 12:26:40,380 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:40,380 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:26:40,380 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-11-18 12:26:40,381 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [126], [128], [131], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [215], [218], [222], [228], [231], [235], [236], [240], [243], [245], [248], [255], [258], [261], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [287], [288], [289], [291], [292], [293], [294], [297], [298], [299], [300], [301], [302], [307], [308], [311], [312], [313], [314], [315], [316], [321], [322], [323], [324], [325], [326], [327], [328], [329], [331], [332], [333], [334], [337], [338] [2018-11-18 12:26:40,382 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:26:40,382 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:26:41,599 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:26:41,599 INFO L272 AbstractInterpreter]: Visited 131 different actions 764 times. Merged at 19 different actions 68 times. Never widened. Performed 27083 root evaluator evaluations with a maximum evaluation depth of 5. Performed 27083 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-18 12:26:41,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:41,601 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:26:41,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:41,601 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:26:41,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:41,607 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:26:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:41,686 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-18 12:26:41,736 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:26:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-18 12:26:41,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:26:41,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 12:26:41,936 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:41,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:26:41,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:26:41,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:26:41,937 INFO L87 Difference]: Start difference. First operand 2063 states and 2427 transitions. Second operand 6 states. [2018-11-18 12:26:42,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:42,022 INFO L93 Difference]: Finished difference Result 3177 states and 3851 transitions. [2018-11-18 12:26:42,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:26:42,022 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2018-11-18 12:26:42,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:42,027 INFO L225 Difference]: With dead ends: 3177 [2018-11-18 12:26:42,027 INFO L226 Difference]: Without dead ends: 1983 [2018-11-18 12:26:42,030 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 409 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 12:26:42,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2018-11-18 12:26:42,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1983. [2018-11-18 12:26:42,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1983 states. [2018-11-18 12:26:42,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1983 states to 1983 states and 2315 transitions. [2018-11-18 12:26:42,090 INFO L78 Accepts]: Start accepts. Automaton has 1983 states and 2315 transitions. Word has length 207 [2018-11-18 12:26:42,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:42,090 INFO L480 AbstractCegarLoop]: Abstraction has 1983 states and 2315 transitions. [2018-11-18 12:26:42,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:26:42,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1983 states and 2315 transitions. [2018-11-18 12:26:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-11-18 12:26:42,094 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:42,094 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 12:26:42,094 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:42,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:42,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1622151938, now seen corresponding path program 1 times [2018-11-18 12:26:42,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:42,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:42,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:42,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:42,096 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:42,181 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 53 proven. 19 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-18 12:26:42,181 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:42,181 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:26:42,182 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-11-18 12:26:42,182 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [126], [128], [131], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [169], [171], [173], [174], [175], [176], [184], [185], [215], [218], [222], [228], [231], [235], [236], [240], [243], [245], [248], [255], [258], [261], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [287], [288], [289], [291], [292], [293], [294], [297], [298], [299], [300], [301], [302], [307], [308], [311], [312], [313], [314], [315], [316], [321], [322], [323], [324], [325], [326], [327], [328], [329], [331], [332], [333], [334], [337], [338] [2018-11-18 12:26:42,183 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:26:42,183 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:26:42,894 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:26:42,894 INFO L272 AbstractInterpreter]: Visited 132 different actions 711 times. Merged at 26 different actions 130 times. Never widened. Performed 18672 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18672 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-18 12:26:42,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:42,901 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:26:42,901 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:42,901 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:26:42,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:42,935 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:26:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:43,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:43,075 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 78 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-18 12:26:43,075 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:26:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 53 proven. 19 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-18 12:26:43,280 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:26:43,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-11-18 12:26:43,280 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:26:43,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 12:26:43,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 12:26:43,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:26:43,285 INFO L87 Difference]: Start difference. First operand 1983 states and 2315 transitions. Second operand 12 states. [2018-11-18 12:26:43,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:43,788 INFO L93 Difference]: Finished difference Result 3550 states and 4230 transitions. [2018-11-18 12:26:43,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:26:43,788 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 224 [2018-11-18 12:26:43,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:43,794 INFO L225 Difference]: With dead ends: 3550 [2018-11-18 12:26:43,794 INFO L226 Difference]: Without dead ends: 1797 [2018-11-18 12:26:43,798 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 448 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:26:43,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2018-11-18 12:26:43,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1658. [2018-11-18 12:26:43,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1658 states. [2018-11-18 12:26:43,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 1868 transitions. [2018-11-18 12:26:43,882 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 1868 transitions. Word has length 224 [2018-11-18 12:26:43,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:43,882 INFO L480 AbstractCegarLoop]: Abstraction has 1658 states and 1868 transitions. [2018-11-18 12:26:43,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 12:26:43,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 1868 transitions. [2018-11-18 12:26:43,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-11-18 12:26:43,887 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:43,887 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 12:26:43,887 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:43,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:43,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1973253017, now seen corresponding path program 1 times [2018-11-18 12:26:43,888 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:43,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:43,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:43,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:43,888 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2018-11-18 12:26:43,984 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:43,984 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:26:43,984 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 271 with the following transitions: [2018-11-18 12:26:43,984 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], [66], [67], [68], [71], [72], [73], [74], [77], [79], [82], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [126], [128], [131], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [169], [171], [173], [174], [175], [176], [184], [185], [215], [218], [222], [228], [231], [235], [236], [240], [243], [245], [248], [255], [258], [261], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [287], [288], [289], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [307], [308], [311], [312], [313], [314], [315], [316], [321], [322], [323], [324], [325], [326], [327], [328], [329], [331], [332], [333], [334], [337], [338] [2018-11-18 12:26:43,986 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:26:43,986 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:26:45,226 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:26:45,226 INFO L272 AbstractInterpreter]: Visited 138 different actions 853 times. Merged at 33 different actions 166 times. Never widened. Performed 26533 root evaluator evaluations with a maximum evaluation depth of 5. Performed 26533 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 22 fixpoints after 6 different actions. Largest state had 132 variables. [2018-11-18 12:26:45,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:45,233 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:26:45,233 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:45,233 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:26:45,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:45,241 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:26:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:45,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-18 12:26:45,356 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:26:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2018-11-18 12:26:45,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:26:45,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-18 12:26:45,632 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:45,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:26:45,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:26:45,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:26:45,632 INFO L87 Difference]: Start difference. First operand 1658 states and 1868 transitions. Second operand 6 states. [2018-11-18 12:26:45,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:45,700 INFO L93 Difference]: Finished difference Result 3366 states and 3864 transitions. [2018-11-18 12:26:45,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:26:45,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 270 [2018-11-18 12:26:45,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:45,706 INFO L225 Difference]: With dead ends: 3366 [2018-11-18 12:26:45,706 INFO L226 Difference]: Without dead ends: 1732 [2018-11-18 12:26:45,710 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 537 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:26:45,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2018-11-18 12:26:45,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1632. [2018-11-18 12:26:45,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1632 states. [2018-11-18 12:26:45,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 1841 transitions. [2018-11-18 12:26:45,803 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 1841 transitions. Word has length 270 [2018-11-18 12:26:45,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:45,804 INFO L480 AbstractCegarLoop]: Abstraction has 1632 states and 1841 transitions. [2018-11-18 12:26:45,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:26:45,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 1841 transitions. [2018-11-18 12:26:45,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-11-18 12:26:45,809 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:45,810 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 12:26:45,810 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:45,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:45,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1290673381, now seen corresponding path program 1 times [2018-11-18 12:26:45,810 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:26:45,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:45,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:45,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:26:45,811 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:26:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:46,001 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 76 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-18 12:26:46,001 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:46,001 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:26:46,002 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 271 with the following transitions: [2018-11-18 12:26:46,002 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], [66], [67], [68], [71], [72], [73], [74], [77], [79], [82], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [126], [128], [131], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [215], [218], [222], [228], [231], [235], [236], [240], [243], [245], [248], [255], [258], [261], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [287], [288], [289], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [307], [308], [311], [312], [313], [314], [315], [316], [321], [322], [323], [324], [325], [326], [327], [328], [329], [331], [332], [333], [334], [337], [338] [2018-11-18 12:26:46,003 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:26:46,003 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:26:46,855 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:26:46,855 INFO L272 AbstractInterpreter]: Visited 137 different actions 535 times. Merged at 27 different actions 71 times. Never widened. Performed 21243 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21243 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 11 fixpoints after 5 different actions. Largest state had 132 variables. [2018-11-18 12:26:46,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:46,857 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:26:46,857 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:26:46,857 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:26:46,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:46,864 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:26:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:46,946 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-11-18 12:26:47,006 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:26:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 76 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-18 12:26:47,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:26:47,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 12:26:47,357 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:26:47,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 12:26:47,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:26:47,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:26:47,358 INFO L87 Difference]: Start difference. First operand 1632 states and 1841 transitions. Second operand 5 states. [2018-11-18 12:26:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:47,392 INFO L93 Difference]: Finished difference Result 2378 states and 2675 transitions. [2018-11-18 12:26:47,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:26:47,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2018-11-18 12:26:47,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:47,393 INFO L225 Difference]: With dead ends: 2378 [2018-11-18 12:26:47,394 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:26:47,397 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 537 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:26:47,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:26:47,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:26:47,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:26:47,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:26:47,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 270 [2018-11-18 12:26:47,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:47,398 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:26:47,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 12:26:47,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:26:47,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:26:47,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:26:47,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,572 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,743 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:47,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,098 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,168 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,326 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,373 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,611 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,618 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,772 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,776 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,855 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:48,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:26:49,018 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 18 [2018-11-18 12:26:49,187 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 29 [2018-11-18 12:26:49,583 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 32 [2018-11-18 12:26:49,720 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 27 [2018-11-18 12:26:49,960 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 29 [2018-11-18 12:26:50,222 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 38 [2018-11-18 12:26:50,542 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 24 [2018-11-18 12:26:51,128 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 45 [2018-11-18 12:26:51,535 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 24 [2018-11-18 12:26:51,970 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 28 [2018-11-18 12:26:51,972 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-11-18 12:26:51,972 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-11-18 12:26:51,972 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-11-18 12:26:51,972 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-11-18 12:26:51,972 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-11-18 12:26:51,972 INFO L421 ceAbstractionStarter]: At program point L95(line 95) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (not (= ~systemActive~0 0))))) [2018-11-18 12:26:51,972 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 81 105) the Hoare annotation is: true [2018-11-18 12:26:51,973 INFO L425 ceAbstractionStarter]: For program point L93(lines 93 99) no Hoare annotation was computed. [2018-11-18 12:26:51,973 INFO L421 ceAbstractionStarter]: At program point L91(line 91) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~systemActive~0 0))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse3 (< ~waterLevel~0 2))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or .cse2 (or .cse0 (not (= ~waterLevel~0 1)))) (or .cse3 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse2 (or .cse0 .cse3)))) [2018-11-18 12:26:51,973 INFO L425 ceAbstractionStarter]: For program point L91-1(line 91) no Hoare annotation was computed. [2018-11-18 12:26:51,973 INFO L425 ceAbstractionStarter]: For program point L89(lines 89 102) no Hoare annotation was computed. [2018-11-18 12:26:51,973 INFO L425 ceAbstractionStarter]: For program point L89-1(lines 81 105) no Hoare annotation was computed. [2018-11-18 12:26:51,973 INFO L428 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: true [2018-11-18 12:26:51,973 INFO L425 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-11-18 12:26:51,973 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 81 105) no Hoare annotation was computed. [2018-11-18 12:26:51,973 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 489 511) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:26:51,973 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 489 511) no Hoare annotation was computed. [2018-11-18 12:26:51,973 INFO L421 ceAbstractionStarter]: At program point L501(line 501) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~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)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:26:51,973 INFO L421 ceAbstractionStarter]: At program point L501-1(line 501) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~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)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:26:51,973 INFO L425 ceAbstractionStarter]: For program point L499(lines 499 506) no Hoare annotation was computed. [2018-11-18 12:26:51,974 INFO L425 ceAbstractionStarter]: For program point L499-1(lines 499 506) no Hoare annotation was computed. [2018-11-18 12:26:51,974 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-18 12:26:51,974 INFO L421 ceAbstractionStarter]: At program point L496(line 496) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:26:51,974 INFO L421 ceAbstractionStarter]: At program point L495(line 495) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:26:51,974 INFO L421 ceAbstractionStarter]: At program point L495-1(line 495) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:26:51,974 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 489 511) no Hoare annotation was computed. [2018-11-18 12:26:51,974 INFO L425 ceAbstractionStarter]: For program point stopSystemEXIT(lines 401 415) no Hoare annotation was computed. [2018-11-18 12:26:51,974 INFO L421 ceAbstractionStarter]: At program point L407(line 407) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (not (= 0 |old(~pumpRunning~0)|)) (or (< ~waterLevel~0 2) (= |old(~systemActive~0)| 0) (and (not (= ~systemActive~0 0)) .cse0)) (or (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1))))) [2018-11-18 12:26:51,975 INFO L421 ceAbstractionStarter]: At program point stopSystemENTRY(lines 401 415) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse0 (= |old(~systemActive~0)| 0)) (.cse4 (and (not .cse1) .cse2)) (.cse3 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (not .cse0) (and .cse1 .cse2) .cse3) (or (< ~waterLevel~0 2) .cse0 .cse4) (or .cse0 .cse4 .cse3) (or (and (= ~systemActive~0 1) .cse2) (not (= |old(~systemActive~0)| 1)))))) [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point L405(lines 405 411) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point stopSystemFINAL(lines 401 415) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 318 326) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 318 326) the Hoare annotation is: true [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 318 326) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 382 400) the Hoare annotation is: true [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 395) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 382 400) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L428 ceAbstractionStarter]: At program point L389(line 389) the Hoare annotation is: true [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point L391-2(lines 391 395) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point L389-1(line 389) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 382 400) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-11-18 12:26:51,975 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 479 488) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 479 488) no Hoare annotation was computed. [2018-11-18 12:26:51,975 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 479 488) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 307 317) the Hoare annotation is: true [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 307 317) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L428 ceAbstractionStarter]: At program point L312(line 312) the Hoare annotation is: true [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point L312-1(line 312) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 307 317) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 299 306) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= ~systemActive~0 1))) (or (< ~waterLevel~0 2) (= ~systemActive~0 0) .cse0))) [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 299 306) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 299 306) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 592 605) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point L596(lines 596 602) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 592 605) the Hoare annotation is: true [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 592 605) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 264) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L421 ceAbstractionStarter]: At program point L254(line 254) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1))) [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point L254-1(line 254) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point L252(lines 252 269) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 248 272) no Hoare annotation was computed. [2018-11-18 12:26:51,976 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 248 272) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse1 .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse2))) [2018-11-18 12:26:51,976 INFO L421 ceAbstractionStarter]: At program point L267(line 267) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1))) [2018-11-18 12:26:51,976 INFO L425 ceAbstractionStarter]: For program point L267-1(lines 248 272) no Hoare annotation was computed. [2018-11-18 12:26:51,977 INFO L421 ceAbstractionStarter]: At program point L262(line 262) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 12:26:51,977 INFO L421 ceAbstractionStarter]: At program point L258(line 258) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (<= 1 processEnvironment_~tmp~3) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1))) [2018-11-18 12:26:51,977 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 214 220) no Hoare annotation was computed. [2018-11-18 12:26:51,977 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 214 220) the Hoare annotation is: true [2018-11-18 12:26:51,977 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 112 177) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:26:51,977 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 128) no Hoare annotation was computed. [2018-11-18 12:26:51,977 INFO L425 ceAbstractionStarter]: For program point L122-1(lines 122 169) no Hoare annotation was computed. [2018-11-18 12:26:51,977 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 112 177) no Hoare annotation was computed. [2018-11-18 12:26:51,977 INFO L421 ceAbstractionStarter]: At program point L170(lines 121 171) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:26:51,977 INFO L421 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 0) .cse0) (and (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~systemActive~0 1) .cse0))) [2018-11-18 12:26:51,977 INFO L425 ceAbstractionStarter]: For program point L158(lines 158 164) no Hoare annotation was computed. [2018-11-18 12:26:51,977 INFO L421 ceAbstractionStarter]: At program point L158-1(lines 152 165) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 12:26:51,977 INFO L425 ceAbstractionStarter]: For program point L123(lines 122 169) no Hoare annotation was computed. [2018-11-18 12:26:51,977 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 165) no Hoare annotation was computed. [2018-11-18 12:26:51,977 INFO L421 ceAbstractionStarter]: At program point L144(line 144) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 12:26:51,977 INFO L425 ceAbstractionStarter]: For program point L142(lines 142 148) no Hoare annotation was computed. [2018-11-18 12:26:51,977 INFO L425 ceAbstractionStarter]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2018-11-18 12:26:51,978 INFO L421 ceAbstractionStarter]: At program point L167(lines 122 169) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (<= 1 ~waterLevel~0) .cse2 .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 12:26:51,978 INFO L421 ceAbstractionStarter]: At program point L134(line 134) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (<= 1 ~waterLevel~0) .cse2 .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 12:26:51,978 INFO L425 ceAbstractionStarter]: For program point L132(lines 132 138) no Hoare annotation was computed. [2018-11-18 12:26:51,978 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 132 138) no Hoare annotation was computed. [2018-11-18 12:26:51,978 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 112 177) no Hoare annotation was computed. [2018-11-18 12:26:51,978 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 273 280) the Hoare annotation is: (or (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2)) [2018-11-18 12:26:51,978 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 273 280) no Hoare annotation was computed. [2018-11-18 12:26:51,978 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 273 280) no Hoare annotation was computed. [2018-11-18 12:26:51,978 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 606 614) no Hoare annotation was computed. [2018-11-18 12:26:51,978 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 606 614) the Hoare annotation is: true [2018-11-18 12:26:51,978 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 606 614) no Hoare annotation was computed. [2018-11-18 12:26:51,978 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:26:51,978 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 12:26:51,978 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:26:51,978 INFO L425 ceAbstractionStarter]: For program point L289(lines 289 295) no Hoare annotation was computed. [2018-11-18 12:26:51,979 INFO L421 ceAbstractionStarter]: At program point L287(line 287) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 12:26:51,979 INFO L425 ceAbstractionStarter]: For program point L287-1(line 287) no Hoare annotation was computed. [2018-11-18 12:26:51,979 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 282 298) no Hoare annotation was computed. [2018-11-18 12:26:51,979 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 282 298) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 12:26:51,979 INFO L421 ceAbstractionStarter]: At program point L293(line 293) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-11-18 12:26:51,979 INFO L425 ceAbstractionStarter]: For program point L293-1(lines 282 298) no Hoare annotation was computed. [2018-11-18 12:26:51,979 INFO L425 ceAbstractionStarter]: For program point L370-1(line 370) no Hoare annotation was computed. [2018-11-18 12:26:51,979 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 363 381) no Hoare annotation was computed. [2018-11-18 12:26:51,979 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 363 381) the Hoare annotation is: true [2018-11-18 12:26:51,979 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 363 381) no Hoare annotation was computed. [2018-11-18 12:26:51,979 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 376) no Hoare annotation was computed. [2018-11-18 12:26:51,979 INFO L428 ceAbstractionStarter]: At program point L370(line 370) the Hoare annotation is: true [2018-11-18 12:26:51,980 INFO L425 ceAbstractionStarter]: For program point L372-2(lines 372 376) no Hoare annotation was computed. [2018-11-18 12:26:51,980 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 583 591) the Hoare annotation is: true [2018-11-18 12:26:51,980 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 583 591) no Hoare annotation was computed. [2018-11-18 12:26:51,980 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 583 591) no Hoare annotation was computed. [2018-11-18 12:26:51,980 INFO L425 ceAbstractionStarter]: For program point L543-1(lines 539 550) no Hoare annotation was computed. [2018-11-18 12:26:51,980 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 539 550) the Hoare annotation is: (let ((.cse4 (not (= ~waterLevel~0 1))) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse7 (not (= ~waterLevel~0 2))) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse0 (< |old(~methaneLevelCritical~0)| 1)) (.cse1 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 (or (or .cse1 .cse3) .cse6 .cse7)) (or .cse2 (or .cse0 .cse1 (< ~waterLevel~0 2) .cse3)) (or .cse1 .cse5 .cse3 .cse4 .cse6) (or .cse5 (not (= 1 ~pumpRunning~0)) .cse3 .cse6 .cse7) (or .cse2 .cse0 .cse1 (not (= ~systemActive~0 0))))) [2018-11-18 12:26:51,980 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 539 550) no Hoare annotation was computed. [2018-11-18 12:26:51,980 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 551 559) the Hoare annotation is: true [2018-11-18 12:26:51,980 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 551 559) no Hoare annotation was computed. [2018-11-18 12:26:51,980 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 551 559) no Hoare annotation was computed. [2018-11-18 12:26:51,980 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2018-11-18 12:26:51,981 INFO L425 ceAbstractionStarter]: For program point L432(lines 432 436) no Hoare annotation was computed. [2018-11-18 12:26:51,981 INFO L428 ceAbstractionStarter]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2018-11-18 12:26:51,981 INFO L425 ceAbstractionStarter]: For program point L428-1(lines 428 442) no Hoare annotation was computed. [2018-11-18 12:26:51,981 INFO L428 ceAbstractionStarter]: At program point L428-3(lines 428 442) the Hoare annotation is: true [2018-11-18 12:26:51,981 INFO L428 ceAbstractionStarter]: At program point L424(line 424) the Hoare annotation is: true [2018-11-18 12:26:51,981 INFO L425 ceAbstractionStarter]: For program point L424-1(line 424) no Hoare annotation was computed. [2018-11-18 12:26:51,981 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2018-11-18 12:26:51,981 INFO L428 ceAbstractionStarter]: At program point L443(lines 418 447) the Hoare annotation is: true [2018-11-18 12:26:51,981 INFO L425 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-11-18 12:26:51,981 INFO L425 ceAbstractionStarter]: For program point L429(line 429) no Hoare annotation was computed. [2018-11-18 12:26:51,981 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 190 213) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or .cse0 (< |old(~waterLevel~0)| 1) .cse1 .cse2) (or .cse1 (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse2))))) [2018-11-18 12:26:51,982 INFO L421 ceAbstractionStarter]: At program point L203(line 203) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse0)) (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse1)) (or .cse2 (< |old(~waterLevel~0)| 1) (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse1) .cse0) (or .cse2 (not (= ~systemActive~0 0))))) [2018-11-18 12:26:51,982 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 190 213) no Hoare annotation was computed. [2018-11-18 12:26:51,982 INFO L421 ceAbstractionStarter]: At program point L201(lines 201 207) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse0 (not (= ~systemActive~0 0))) (.cse2 (and .cse3 .cse6)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 (not (= |old(~waterLevel~0)| 2)))) (or .cse1 .cse0 .cse2) (or .cse1 (< |old(~waterLevel~0)| 1) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse3) .cse2 .cse4) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (= ~pumpRunning~0 0)) (or (not (= 1 |old(~pumpRunning~0)|)) (or .cse5 .cse4))) (or .cse6 (or (< ~methaneLevelCritical~0 1) .cse1 .cse5 .cse4))))) [2018-11-18 12:26:51,982 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 190 213) no Hoare annotation was computed. [2018-11-18 12:26:51,982 INFO L421 ceAbstractionStarter]: At program point L196(line 196) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~systemActive~0 0))) (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse1))) (or .cse0 (< |old(~waterLevel~0)| 1) .cse1))) [2018-11-18 12:26:51,982 INFO L425 ceAbstractionStarter]: For program point L194(lines 193 212) no Hoare annotation was computed. [2018-11-18 12:26:51,982 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 515 526) the Hoare annotation is: (or (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1))) (not (= 1 ~pumpRunning~0)) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-11-18 12:26:51,982 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 515 526) no Hoare annotation was computed. [2018-11-18 12:26:51,982 INFO L425 ceAbstractionStarter]: For program point L519-1(lines 515 526) no Hoare annotation was computed. [2018-11-18 12:26:51,982 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 472 478) no Hoare annotation was computed. [2018-11-18 12:26:51,983 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 472 478) the Hoare annotation is: true [2018-11-18 12:26:51,983 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:26:51,983 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 12:26:51,983 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:26:51,983 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:26:51,983 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 222 246) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1))) [2018-11-18 12:26:51,983 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 222 246) no Hoare annotation was computed. [2018-11-18 12:26:51,983 INFO L421 ceAbstractionStarter]: At program point L241(line 241) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 12:26:51,983 INFO L425 ceAbstractionStarter]: For program point L241-1(lines 222 246) no Hoare annotation was computed. [2018-11-18 12:26:51,983 INFO L421 ceAbstractionStarter]: At program point L236(line 236) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 12:26:51,983 INFO L421 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 12:26:51,984 INFO L425 ceAbstractionStarter]: For program point L230(lines 230 238) no Hoare annotation was computed. [2018-11-18 12:26:51,984 INFO L421 ceAbstractionStarter]: At program point L228(line 228) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1))) [2018-11-18 12:26:51,984 INFO L425 ceAbstractionStarter]: For program point L228-1(line 228) no Hoare annotation was computed. [2018-11-18 12:26:51,984 INFO L425 ceAbstractionStarter]: For program point L226(lines 226 243) no Hoare annotation was computed. [2018-11-18 12:26:51,984 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 527 538) no Hoare annotation was computed. [2018-11-18 12:26:51,984 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 527 538) the Hoare annotation is: (let ((.cse2 (not (= 0 ~pumpRunning~0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (not (= 1 ~pumpRunning~0)) .cse1) (or .cse2 (not (= ~systemActive~0 0)) .cse1) (or .cse2 .cse1 (< |old(~waterLevel~0)| 1) .cse0))) [2018-11-18 12:26:51,984 INFO L425 ceAbstractionStarter]: For program point L531-1(lines 527 538) no Hoare annotation was computed. [2018-11-18 12:26:51,984 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 616 623) no Hoare annotation was computed. [2018-11-18 12:26:51,984 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 620) no Hoare annotation was computed. [2018-11-18 12:26:51,984 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 616 623) the Hoare annotation is: true [2018-11-18 12:26:51,984 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 616 623) no Hoare annotation was computed. [2018-11-18 12:26:51,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:26:51 BoogieIcfgContainer [2018-11-18 12:26:51,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:26:51,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:26:51,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:26:51,999 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:26:51,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:26:13" (3/4) ... [2018-11-18 12:26:52,002 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:26:52,017 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 12:26:52,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 12:26:52,019 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 12:26:52,020 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 12:26:52,020 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 12:26:52,020 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 12:26:52,020 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 12:26:52,020 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 12:26:52,027 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-18 12:26:52,027 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 12:26:52,027 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 12:26:52,048 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0) || (((1 <= waterLevel && pumpRunning == 0) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || ((systemActive == 0 && pumpRunning == 0) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 12:26:52,048 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 12:26:52,080 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e4ee8cb3-a4a5-47b5-bd44-d139b918c996/bin-2019/utaipan/witness.graphml [2018-11-18 12:26:52,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:26:52,081 INFO L168 Benchmark]: Toolchain (without parser) took 39160.57 ms. Allocated memory was 1.0 GB in the beginning and 3.1 GB in the end (delta: 2.1 GB). Free memory was 954.4 MB in the beginning and 1.9 GB in the end (delta: -931.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-11-18 12:26:52,082 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:26:52,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:52,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.47 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:52,082 INFO L168 Benchmark]: Boogie Preprocessor took 29.67 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:52,083 INFO L168 Benchmark]: RCFGBuilder took 558.17 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: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:52,083 INFO L168 Benchmark]: TraceAbstraction took 38077.14 ms. Allocated memory was 1.2 GB in the beginning and 3.1 GB in the end (delta: 1.9 GB). Free memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: -831.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 11.5 GB. [2018-11-18 12:26:52,083 INFO L168 Benchmark]: Witness Printer took 81.84 ms. Allocated memory is still 3.1 GB. Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: 14.5 kB). Peak memory consumption was 14.5 kB. Max. memory is 11.5 GB. [2018-11-18 12:26:52,085 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.47 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.67 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 558.17 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: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 38077.14 ms. Allocated memory was 1.2 GB in the beginning and 3.1 GB in the end (delta: 1.9 GB). Free memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: -831.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 11.5 GB. * Witness Printer took 81.84 ms. Allocated memory is still 3.1 GB. Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: 14.5 kB). Peak memory consumption was 14.5 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 620]: 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: 121]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: ((((((((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0) || (((1 <= waterLevel && pumpRunning == 0) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || ((systemActive == 0 && pumpRunning == 0) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 164 locations, 1 error locations. SAFE Result, 38.0s OverallTime, 16 OverallIterations, 4 TraceHistogramMax, 19.2s AutomataDifference, 0.0s DeadEndRemovalTime, 4.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 3611 SDtfs, 5367 SDslu, 13040 SDs, 0 SdLazy, 8366 SolverSat, 1766 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 3304 GetRequests, 3049 SyntacticMatches, 29 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 929 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4715occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.0s AbstIntTime, 10 AbstIntIterations, 4 AbstIntStrong, 0.9979728580415884 AbsIntWeakeningRatio, 0.874326750448833 AbsIntAvgWeakeningVarsNumRemoved, 46.05745062836625 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 1806 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 67 LocationsWithAnnotation, 8106 PreInvPairs, 8300 NumberOfFragments, 1535 HoareAnnotationTreeSize, 8106 FomulaSimplifications, 90085 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 67 FomulaSimplificationsInter, 82468 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 3544 NumberOfCodeBlocks, 3544 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4797 ConstructedInterpolants, 0 QuantifiedInterpolants, 1183162 SizeOfPredicates, 20 NumberOfNonLiveVariables, 5522 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 28 InterpolantComputations, 10 PerfectInterpolantSequences, 2261/2395 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...